5.10存档

components/request.js

@@ -2,7 +2,7 @@
 
 export default {
 	config: {
-		baseUrl: "http://localhost:8200",	//本地开发
+		baseUrl: "http://localhost:8201",	//本地开发
 		// baseUrl: "https://talent.younggee.com:8201", //默认的公共域名
 		// baseUrl: "https://139.9.53.143:8201",  //默认的公共域名
 	},

components/requesttoken111.js

@@ -2,7 +2,7 @@
 //通用uni-app网络请求
 export default {
 	config: {
-		baseUrl: "http://localhost:8200", //本地开发
+		baseUrl: "http://localhost:8201", //本地开发
 		// baseUrl: "https://talent.younggee.com:8201", //默认的公共域名
 		// baseUrl: "https://139.9.53.143:8201",  //默认的公共域名
 

main.js

@@ -6,7 +6,8 @@ Vue.prototype.$http = http
 import https from 'components/requesttoken111.js'
 Vue.prototype.$https = https
 import share from 'components/share.js'
-// import puppeteer from 'components/'
+// const puppeteer = require('puppeteer');
+// import puppeteer from 'puppeteer'      
 Vue.mixin(share)
 Vue.config.productionTip = false
 

manifest.json

@@ -134,5 +134,6 @@
             "startLocationUpdateBackground",
             "chooseAddress"
         ]
-    }
+    },
+    "vueVersion" : "2"
 }

node_modules/.bin/acorn

@@ -0,0 +1,16 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*)
+        if command -v cygpath > /dev/null 2>&1; then
+            basedir=`cygpath -w "$basedir"`
+        fi
+    ;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../acorn/bin/acorn" "$@"
+else 
+  exec node  "$basedir/../acorn/bin/acorn" "$@"
+fi

node_modules/.bin/acorn.cmd

@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\acorn\bin\acorn" %*

node_modules/.bin/acorn.ps1

@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../acorn/bin/acorn" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../acorn/bin/acorn" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../acorn/bin/acorn" $args
+  } else {
+    & "node$exe"  "$basedir/../acorn/bin/acorn" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret

node_modules/.bin/atob

@@ -0,0 +1,16 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*)
+        if command -v cygpath > /dev/null 2>&1; then
+            basedir=`cygpath -w "$basedir"`
+        fi
+    ;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../atob/bin/atob.js" "$@"
+else 
+  exec node  "$basedir/../atob/bin/atob.js" "$@"
+fi

node_modules/.bin/atob.cmd

@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\atob\bin\atob.js" %*

node_modules/.bin/atob.ps1

@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../atob/bin/atob.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../atob/bin/atob.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../atob/bin/atob.js" $args
+  } else {
+    & "node$exe"  "$basedir/../atob/bin/atob.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret

node_modules/.bin/mkdirp

@@ -0,0 +1,16 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*)
+        if command -v cygpath > /dev/null 2>&1; then
+            basedir=`cygpath -w "$basedir"`
+        fi
+    ;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../mkdirp/bin/cmd.js" "$@"
+else 
+  exec node  "$basedir/../mkdirp/bin/cmd.js" "$@"
+fi

node_modules/.bin/mkdirp.cmd

@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\mkdirp\bin\cmd.js" %*

node_modules/.bin/mkdirp.ps1

@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  } else {
+    & "node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret

node_modules/.bin/module

@@ -0,0 +1,16 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*)
+        if command -v cygpath > /dev/null 2>&1; then
+            basedir=`cygpath -w "$basedir"`
+        fi
+    ;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../module/dist/cli.js" "$@"
+else 
+  exec node  "$basedir/../module/dist/cli.js" "$@"
+fi

node_modules/.bin/module.cmd

@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\module\dist\cli.js" %*

node_modules/.bin/module.ps1

@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../module/dist/cli.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../module/dist/cli.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../module/dist/cli.js" $args
+  } else {
+    & "node$exe"  "$basedir/../module/dist/cli.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret

node_modules/.bin/resolve

@@ -0,0 +1,16 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*)
+        if command -v cygpath > /dev/null 2>&1; then
+            basedir=`cygpath -w "$basedir"`
+        fi
+    ;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../resolve/bin/resolve" "$@"
+else 
+  exec node  "$basedir/../resolve/bin/resolve" "$@"
+fi

node_modules/.bin/resolve.cmd

@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\resolve\bin\resolve" %*

node_modules/.bin/resolve.ps1

@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../resolve/bin/resolve" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../resolve/bin/resolve" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../resolve/bin/resolve" $args
+  } else {
+    & "node$exe"  "$basedir/../resolve/bin/resolve" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret

node_modules/.bin/window-size

@@ -0,0 +1,16 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*)
+        if command -v cygpath > /dev/null 2>&1; then
+            basedir=`cygpath -w "$basedir"`
+        fi
+    ;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../window-size/cli.js" "$@"
+else 
+  exec node  "$basedir/../window-size/cli.js" "$@"
+fi

node_modules/.bin/window-size.cmd

@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\window-size\cli.js" %*

node_modules/.bin/window-size.ps1

@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../window-size/cli.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../window-size/cli.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../window-size/cli.js" $args
+  } else {
+    & "node$exe"  "$basedir/../window-size/cli.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret

node_modules/@gulp-sourcemaps/map-sources/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2017 Blaine Bublitz <blaine.bublitz@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/@gulp-sourcemaps/map-sources/README.md

@@ -0,0 +1,52 @@
+# @gulp-sourcemaps/map-sources
+
+[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![AppVeyor Build Status][appveyor-image]][appveyor-url] [![Coveralls Status][coveralls-image]][coveralls-url]
+
+Gulp plugin for mapping sources of a sourcemap.
+
+## Example
+
+```js
+var mapSources = require('@gulp-sourcemaps/map-sources');
+
+gulp.src(...)
+  .pipe(sourcemaps.init())
+  .pipe(mapSources(function(sourcePath, file) {
+    return '../' + sourcePath;
+  }))
+  .pipe(sourcemaps.write())
+  .pipe(gulp.dest(...))
+```
+
+## API
+
+### `mapSources(mapFn)`
+
+Takes a map function as the only argument. Returns an `objectMode` Transform stream.
+
+#### `mapFn(sourcePath, file)`
+
+The map function is called once per value of the `sources` array of a `sourceMap` attached to each [`Vinyl`][vinyl-url] object passed through the stream.  The map function is called with the `sourcePath` string from the `sources` array and the `file` object it originated from.  The return value replaces the original value in the array.
+
+If a `Vinyl` object doesn't have a `sourceMap` or `sourceMap.sources` property, the file is passed through the stream without having the `mapFn` called.
+
+All `sources` are normalized to use `/` instead of `\\` as path separators.
+
+## License
+
+MIT
+
+[vinyl-url]: https://github.com/gulpjs/vinyl
+
+[downloads-image]: http://img.shields.io/npm/dm/@gulp-sourcemaps/map-sources.svg
+[npm-url]: https://npmjs.org/package/@gulp-sourcemaps/map-sources
+[npm-image]: http://img.shields.io/npm/v/@gulp-sourcemaps/map-sources.svg
+
+[travis-url]: https://travis-ci.org/gulp-sourcemaps/map-sources
+[travis-image]: http://img.shields.io/travis/gulp-sourcemaps/map-sources.svg?label=travis-ci
+
+[appveyor-url]: https://ci.appveyor.com/project/phated/map-sources
+[appveyor-image]: https://img.shields.io/appveyor/ci/phated/map-sources.svg?label=appveyor
+
+[coveralls-url]: https://coveralls.io/r/gulp-sourcemaps/map-sources
+[coveralls-image]: http://img.shields.io/coveralls/gulp-sourcemaps/map-sources.svg

node_modules/@gulp-sourcemaps/map-sources/index.js

@@ -0,0 +1,30 @@
+'use strict';
+
+var through = require('through2');
+var normalize = require('normalize-path');
+
+function mapSources(mapFn) {
+
+  function transform(file, _, cb) {
+    if (!file.sourceMap || !file.sourceMap.sources) {
+      return cb(null, file);
+    }
+
+    function mapper(sourcePath) {
+      var result = sourcePath;
+      if (typeof mapFn === 'function') {
+        result = mapFn(sourcePath, file);
+      }
+
+      return normalize(result);
+    }
+
+    file.sourceMap.sources = file.sourceMap.sources.map(mapper);
+
+    cb(null, file);
+  }
+
+  return through.obj(transform);
+}
+
+module.exports = mapSources;

node_modules/@gulp-sourcemaps/map-sources/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "@gulp-sourcemaps/map-sources",
+  "version": "1.0.0",
+  "description": "Gulp plugin for mapping sources of a sourcemap.",
+  "author": "Gulp-sourcemaps Team",
+  "contributors": [
+    "Blaine Bublitz <blaine.bublitz@gmail.com>"
+  ],
+  "repository": "gulp-sourcemaps/map-sources",
+  "license": "MIT",
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "main": "index.js",
+  "files": [
+    "LICENSE",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint . && jscs index.js test/",
+    "pretest": "npm run lint",
+    "test": "mocha --async-only",
+    "cover": "istanbul cover _mocha --report lcovonly",
+    "coveralls": "npm run cover && istanbul-coveralls"
+  },
+  "dependencies": {
+    "normalize-path": "^2.0.1",
+    "through2": "^2.0.3"
+  },
+  "devDependencies": {
+    "eslint": "^1.7.3",
+    "eslint-config-gulp": "^2.0.0",
+    "expect": "^1.19.0",
+    "istanbul": "^0.4.3",
+    "istanbul-coveralls": "^1.0.3",
+    "jscs": "^2.3.5",
+    "jscs-preset-gulp": "^1.0.0",
+    "mississippi": "^1.3.0",
+    "mocha": "^2.4.5",
+    "vinyl": "^2.0.1"
+  },
+  "keywords": [
+    "sourcemap",
+    "sources",
+    "stream"
+  ]
+}

node_modules/acorn/.npmignore

@@ -0,0 +1,10 @@
+/.tern-port
+/test
+/local
+/rollup
+/bin/generate-identifier-regex.js
+/bin/update_authors.sh
+.editorconfig
+.gitattributes
+.tern-project
+.travis.yml

node_modules/acorn/AUTHORS

@@ -0,0 +1,62 @@
+List of Acorn contributors. Updated before every release.
+
+Adrian Rakovsky
+Alistair Braidwood
+Amila Welihinda
+Andres Suarez
+Angelo
+Aparajita Fishman
+Arian Stolwijk
+Artem Govorov
+Brandon Mills
+Charles Hughes
+Conrad Irwin
+Daniel Tschinder
+David Bonnet
+Domenico Matteo
+Forbes Lindesay
+Gilad Peleg
+impinball
+Ingvar Stepanyan
+Jackson Ray Hamilton
+Jesse McCarthy
+Jiaxing Wang
+Joel Kemp
+Johannes Herr
+Jordan Klassen
+Jürg Lehni
+Kai Cataldo
+keeyipchan
+Keheliya Gallaba
+Kevin Irish
+Kevin Kwok
+krator
+Marijn Haverbeke
+Martin Carlberg
+Mat Garcia
+Mathias Bynens
+Mathieu 'p01' Henri
+Matthew Bastien
+Max Schaefer
+Max Zerzouri
+Mihai Bazon
+Mike Rennie
+naoh
+Nicholas C. Zakas
+Nick Fitzgerald
+Olivier Thomann
+Oskar Schöldström
+Paul Harper
+Peter Rust
+PlNG
+Prayag Verma
+ReadmeCritic
+r-e-d
+Richard Gibson
+Rich Harris
+Sebastian McKenzie
+Simen Bekkhus
+Timothy Gu
+Toru Nagashima
+Wexpo Lyu
+zsjforcn

node_modules/acorn/CHANGELOG.md

@@ -0,0 +1,286 @@
+## 4.0.11 (2017-02-07)
+
+### Bug fixes
+
+Allow all forms of member expressions to be parenthesized as lvalue.
+
+## 4.0.10 (2017-02-07)
+
+### Bug fixes
+
+Don't expect semicolons after default-exported functions or classes,
+even when they are expressions.
+
+Check for use of `'use strict'` directives in non-simple parameter
+functions, even when already in strict mode.
+
+## 4.0.9 (2017-02-06)
+
+### Bug fixes
+
+Fix incorrect error raised for parenthesized simple assignment
+targets, so that `(x) = 1` parses again.
+
+## 4.0.8 (2017-02-03)
+
+### Bug fixes
+
+Solve spurious parenthesized pattern errors by temporarily erring on
+the side of accepting programs that our delayed errors don't handle
+correctly yet.
+
+## 4.0.7 (2017-02-02)
+
+### Bug fixes
+
+Accept invalidly rejected code like `(x).y = 2` again.
+
+Don't raise an error when a function _inside_ strict code has a
+non-simple parameter list.
+
+## 4.0.6 (2017-02-02)
+
+### Bug fixes
+
+Fix exponential behavior (manifesting itself as a complete hang for
+even relatively small source files) introduced by the new 'use strict'
+check.
+
+## 4.0.5 (2017-02-02)
+
+### Bug fixes
+
+Disallow parenthesized pattern expressions.
+
+Allow keywords as export names.
+
+Don't allow the `async` keyword to be parenthesized.
+
+Properly raise an error when a keyword contains a character escape.
+
+Allow `"use strict"` to appear after other string literal expressions.
+
+Disallow labeled declarations.
+
+## 4.0.4 (2016-12-19)
+
+### Bug fixes
+
+Fix issue with loading acorn_loose.js with an AMD loader.
+
+Fix crash when `export` was followed by a keyword that can't be
+exported.
+
+## 4.0.3 (2016-08-16)
+
+### Bug fixes
+
+Allow regular function declarations inside single-statement `if`
+branches in loose mode. Forbid them entirely in strict mode.
+
+Properly parse properties named `async` in ES2017 mode.
+
+Fix bug where reserved words were broken in ES2017 mode.
+
+## 4.0.2 (2016-08-11)
+
+### Bug fixes
+
+Don't ignore period or 'e' characters after octal numbers.
+
+Fix broken parsing for call expressions in default parameter values
+of arrow functions.
+
+## 4.0.1 (2016-08-08)
+
+### Bug fixes
+
+Fix false positives in duplicated export name errors.
+
+## 4.0.0 (2016-08-07)
+
+### Breaking changes
+
+The default `ecmaVersion` option value is now 7.
+
+A number of internal method signatures changed, so plugins might need
+to be updated.
+
+### Bug fixes
+
+The parser now raises errors on duplicated export names.
+
+`arguments` and `eval` can now be used in shorthand properties.
+
+Duplicate parameter names in non-simple argument lists now always
+produce an error.
+
+### New features
+
+The `ecmaVersion` option now also accepts year-style version numbers
+(2015, etc).
+
+Support for `async`/`await` syntax when `ecmaVersion` is >= 8.
+
+Support for trailing commas in call expressions when `ecmaVersion`
+is >= 8.
+
+## 3.3.0 (2016-07-25)
+
+### Bug fixes
+
+Fix bug in tokenizing of regexp operator after a function declaration.
+
+Fix parser crash when parsing an array pattern with a hole.
+
+### New features
+
+Implement check against complex argument lists in functions that
+enable strict mode in ES7.
+
+## 3.2.0 (2016-06-07)
+
+### Bug fixes
+
+Improve handling of lack of unicode regexp support in host
+environment.
+
+Properly reject shorthand properties whose name is a keyword.
+
+Don't crash when the loose parser is called without options object.
+
+### New features
+
+Visitors created with `visit.make` now have their base as _prototype_,
+rather than copying properties into a fresh object.
+
+Make it possible to use `visit.ancestor` with a walk state.
+
+## 3.1.0 (2016-04-18)
+
+### Bug fixes
+
+Fix issue where the loose parser created invalid TemplateElement nodes
+for unclosed template literals.
+
+Properly tokenize the division operator directly after a function
+expression.
+
+Allow trailing comma in destructuring arrays.
+
+### New features
+
+The walker now allows defining handlers for `CatchClause` nodes.
+
+## 3.0.4 (2016-02-25)
+
+### Fixes
+
+Allow update expressions as left-hand-side of the ES7 exponential
+operator.
+
+## 3.0.2 (2016-02-10)
+
+### Fixes
+
+Fix bug that accidentally made `undefined` a reserved word when
+parsing ES7.
+
+## 3.0.0 (2016-02-10)
+
+### Breaking changes
+
+The default value of the `ecmaVersion` option is now 6 (used to be 5).
+
+Support for comprehension syntax (which was dropped from the draft
+spec) has been removed.
+
+### Fixes
+
+`let` and `yield` are now “contextual keywords”, meaning you can
+mostly use them as identifiers in ES5 non-strict code.
+
+A parenthesized class or function expression after `export default` is
+now parsed correctly.
+
+### New features
+
+When `ecmaVersion` is set to 7, Acorn will parse the exponentiation
+operator (`**`).
+
+The identifier character ranges are now based on Unicode 8.0.0.
+
+Plugins can now override the `raiseRecoverable` method to override the
+way non-critical errors are handled.
+
+## 2.7.0 (2016-01-04)
+
+### Fixes
+
+Stop allowing rest parameters in setters.
+
+Make sure the loose parser always attaches a `local` property to
+`ImportNamespaceSpecifier` nodes.
+
+Disallow `y` rexexp flag in ES5.
+
+Disallow `\00` and `\000` escapes in strict mode.
+
+Raise an error when an import name is a reserved word.
+
+## 2.6.4 (2015-11-12)
+
+### Fixes
+
+Fix crash in loose parser when parsing invalid object pattern.
+
+### New features
+
+Support plugins in the loose parser.
+
+## 2.6.2 (2015-11-10)
+
+### Fixes
+
+Don't crash when no options object is passed.
+
+## 2.6.0 (2015-11-09)
+
+### Fixes
+
+Add `await` as a reserved word in module sources.
+
+Disallow `yield` in a parameter default value for a generator.
+
+Forbid using a comma after a rest pattern in an array destructuring.
+
+### New features
+
+Support parsing stdin in command-line tool.
+
+## 2.5.2 (2015-10-27)
+
+### Fixes
+
+Fix bug where the walker walked an exported `let` statement as an
+expression.
+
+## 2.5.0 (2015-10-27)
+
+### Fixes
+
+Fix tokenizer support in the command-line tool.
+
+In the loose parser, don't allow non-string-literals as import
+sources.
+
+Stop allowing `new.target` outside of functions.
+
+Remove legacy `guard` and `guardedHandler` properties from try nodes.
+
+Stop allowing multiple `__proto__` properties on an object literal in
+strict mode.
+
+Don't allow rest parameters to be non-identifier patterns.
+
+Check for duplicate paramter names in arrow functions.

node_modules/acorn/LICENSE

@@ -0,0 +1,19 @@
+Copyright (C) 2012-2016 by various contributors (see AUTHORS)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

node_modules/acorn/README.md

@@ -0,0 +1,409 @@
+# Acorn
+
+[![Build Status](https://travis-ci.org/ternjs/acorn.svg?branch=master)](https://travis-ci.org/ternjs/acorn)
+[![NPM version](https://img.shields.io/npm/v/acorn.svg)](https://www.npmjs.com/package/acorn)
+[![CDNJS](https://img.shields.io/cdnjs/v/acorn.svg)](https://cdnjs.com/libraries/acorn)  
+[Author funding status: ![maintainer happiness](https://marijnhaverbeke.nl/fund/status_s.png?force)](https://marijnhaverbeke.nl/fund/)
+
+A tiny, fast JavaScript parser, written completely in JavaScript.
+
+## Community
+
+Acorn is open source software released under an
+[MIT license](https://github.com/ternjs/acorn/blob/master/LICENSE).
+
+You are welcome to
+[report bugs](https://github.com/ternjs/acorn/issues) or create pull
+requests on [github](https://github.com/ternjs/acorn). For questions
+and discussion, please use the
+[Tern discussion forum](https://discuss.ternjs.net).
+
+## Installation
+
+The easiest way to install acorn is with [`npm`][npm].
+
+[npm]: https://www.npmjs.com/
+
+```sh
+npm install acorn
+```
+
+Alternately, download the source.
+
+```sh
+git clone https://github.com/ternjs/acorn.git
+```
+
+## Components
+
+When run in a CommonJS (node.js) or AMD environment, exported values
+appear in the interfaces exposed by the individual files, as usual.
+When loaded in the browser (Acorn works in any JS-enabled browser more
+recent than IE5) without any kind of module management, a single
+global object `acorn` will be defined, and all the exported properties
+will be added to that.
+
+### Main parser
+
+This is implemented in `dist/acorn.js`, and is what you get when you
+`require("acorn")` in node.js.
+
+**parse**`(input, options)` is used to parse a JavaScript program.
+The `input` parameter is a string, `options` can be undefined or an
+object setting some of the options listed below. The return value will
+be an abstract syntax tree object as specified by the
+[ESTree spec][estree].
+
+When  encountering   a  syntax   error,  the   parser  will   raise  a
+`SyntaxError` object with a meaningful  message. The error object will
+have a `pos` property that indicates the character offset at which the
+error occurred,  and a `loc`  object that contains a  `{line, column}`
+object referring to that same position.
+
+[estree]: https://github.com/estree/estree
+
+- **ecmaVersion**: Indicates the ECMAScript version to parse. Must be
+  either 3, 5, 6 (2015), 7 (2016), or 8 (2017). This influences support for strict
+  mode, the set of reserved words, and support for new syntax features.
+  Default is 7.
+
+  **NOTE**: Only 'stage 4' (finalized) ECMAScript features are being
+  implemented by Acorn.
+
+- **sourceType**: Indicate the mode the code should be parsed in. Can be
+  either `"script"` or `"module"`. This influences global strict mode
+  and parsing of `import` and `export` declarations.
+
+- **onInsertedSemicolon**: If given a callback, that callback will be
+  called whenever a missing semicolon is inserted by the parser. The
+  callback will be given the character offset of the point where the
+  semicolon is inserted as argument, and if `locations` is on, also a
+  `{line, column}` object representing this position.
+
+- **onTrailingComma**: Like `onInsertedSemicolon`, but for trailing
+  commas.
+
+- **allowReserved**: If `false`, using a reserved word will generate
+  an error. Defaults to `true` for `ecmaVersion` 3, `false` for higher
+  versions. When given the value `"never"`, reserved words and
+  keywords can also not be used as property names (as in Internet
+  Explorer's old parser).
+
+- **allowReturnOutsideFunction**: By default, a return statement at
+  the top level raises an error. Set this to `true` to accept such
+  code.
+
+- **allowImportExportEverywhere**: By default, `import` and `export`
+  declarations can only appear at a program's top level. Setting this
+  option to `true` allows them anywhere where a statement is allowed.
+
+- **allowHashBang**: When this is enabled (off by default), if the
+  code starts with the characters `#!` (as in a shellscript), the
+  first line will be treated as a comment.
+
+- **locations**: When `true`, each node has a `loc` object attached
+  with `start` and `end` subobjects, each of which contains the
+  one-based line and zero-based column numbers in `{line, column}`
+  form. Default is `false`.
+
+- **onToken**: If a function is passed for this option, each found
+  token will be passed in same format as tokens returned from
+  `tokenizer().getToken()`.
+
+  If array is passed, each found token is pushed to it.
+
+  Note that you are not allowed to call the parser from the
+  callback—that will corrupt its internal state.
+
+- **onComment**: If a function is passed for this option, whenever a
+  comment is encountered the function will be called with the
+  following parameters:
+
+  - `block`: `true` if the comment is a block comment, false if it
+    is a line comment.
+  - `text`: The content of the comment.
+  - `start`: Character offset of the start of the comment.
+  - `end`: Character offset of the end of the comment.
+
+  When the `locations` options is on, the `{line, column}` locations
+  of the comment’s start and end are passed as two additional
+  parameters.
+
+  If array is passed for this option, each found comment is pushed
+  to it as object in Esprima format:
+
+  ```javascript
+  {
+    "type": "Line" | "Block",
+    "value": "comment text",
+    "start": Number,
+    "end": Number,
+    // If `locations` option is on:
+    "loc": {
+      "start": {line: Number, column: Number}
+      "end": {line: Number, column: Number}
+    },
+    // If `ranges` option is on:
+    "range": [Number, Number]
+  }
+  ```
+
+  Note that you are not allowed to call the parser from the
+  callback—that will corrupt its internal state.
+
+- **ranges**: Nodes have their start and end characters offsets
+  recorded in `start` and `end` properties (directly on the node,
+  rather than the `loc` object, which holds line/column data. To also
+  add a [semi-standardized][range] `range` property holding a
+  `[start, end]` array with the same numbers, set the `ranges` option
+  to `true`.
+
+- **program**: It is possible to parse multiple files into a single
+  AST by passing the tree produced by parsing the first file as the
+  `program` option in subsequent parses. This will add the toplevel
+  forms of the parsed file to the "Program" (top) node of an existing
+  parse tree.
+
+- **sourceFile**: When the `locations` option is `true`, you can pass
+  this option to add a `source` attribute in every node’s `loc`
+  object. Note that the contents of this option are not examined or
+  processed in any way; you are free to use whatever format you
+  choose.
+
+- **directSourceFile**: Like `sourceFile`, but a `sourceFile` property
+  will be added (regardless of the `location` option) directly to the
+  nodes, rather than the `loc` object.
+
+- **preserveParens**: If this option is `true`, parenthesized expressions
+  are represented by (non-standard) `ParenthesizedExpression` nodes
+  that have a single `expression` property containing the expression
+  inside parentheses.
+
+[range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
+
+**parseExpressionAt**`(input, offset, options)` will parse a single
+expression in a string, and return its AST. It will not complain if
+there is more of the string left after the expression.
+
+**getLineInfo**`(input, offset)` can be used to get a `{line,
+column}` object for a given program string and character offset.
+
+**tokenizer**`(input, options)` returns an object with a `getToken`
+method that can be called repeatedly to get the next token, a `{start,
+end, type, value}` object (with added `loc` property when the
+`locations` option is enabled and `range` property when the `ranges`
+option is enabled). When the token's type is `tokTypes.eof`, you
+should stop calling the method, since it will keep returning that same
+token forever.
+
+In ES6 environment, returned result can be used as any other
+protocol-compliant iterable:
+
+```javascript
+for (let token of acorn.tokenizer(str)) {
+  // iterate over the tokens
+}
+
+// transform code to array of tokens:
+var tokens = [...acorn.tokenizer(str)];
+```
+
+**tokTypes** holds an object mapping names to the token type objects
+that end up in the `type` properties of tokens.
+
+#### Note on using with [Escodegen][escodegen]
+
+Escodegen supports generating comments from AST, attached in
+Esprima-specific format. In order to simulate same format in
+Acorn, consider following example:
+
+```javascript
+var comments = [], tokens = [];
+
+var ast = acorn.parse('var x = 42; // answer', {
+	// collect ranges for each node
+	ranges: true,
+	// collect comments in Esprima's format
+	onComment: comments,
+	// collect token ranges
+	onToken: tokens
+});
+
+// attach comments using collected information
+escodegen.attachComments(ast, comments, tokens);
+
+// generate code
+console.log(escodegen.generate(ast, {comment: true}));
+// > 'var x = 42;    // answer'
+```
+
+[escodegen]: https://github.com/estools/escodegen
+
+### dist/acorn_loose.js ###
+
+This file implements an error-tolerant parser. It exposes a single
+function. The loose parser is accessible in node.js via `require("acorn/dist/acorn_loose")`.
+
+**parse_dammit**`(input, options)` takes the same arguments and
+returns the same syntax tree as the `parse` function in `acorn.js`,
+but never raises an error, and will do its best to parse syntactically
+invalid code in as meaningful a way as it can. It'll insert identifier
+nodes with name `"✖"` as placeholders in places where it can't make
+sense of the input. Depends on `acorn.js`, because it uses the same
+tokenizer.
+
+### dist/walk.js ###
+
+Implements an abstract syntax tree walker. Will store its interface in
+`acorn.walk` when loaded without a module system.
+
+**simple**`(node, visitors, base, state)` does a 'simple' walk over
+a tree. `node` should be the AST node to walk, and `visitors` an
+object with properties whose names correspond to node types in the
+[ESTree spec][estree]. The properties should contain functions
+that will be called with the node object and, if applicable the state
+at that point. The last two arguments are optional. `base` is a walker
+algorithm, and `state` is a start state. The default walker will
+simply visit all statements and expressions and not produce a
+meaningful state. (An example of a use of state is to track scope at
+each point in the tree.)
+
+**ancestor**`(node, visitors, base, state)` does a 'simple' walk over
+a tree, building up an array of ancestor nodes (including the current node)
+and passing the array to the callbacks as a third parameter.
+
+**recursive**`(node, state, functions, base)` does a 'recursive'
+walk, where the walker functions are responsible for continuing the
+walk on the child nodes of their target node. `state` is the start
+state, and `functions` should contain an object that maps node types
+to walker functions. Such functions are called with `(node, state, c)`
+arguments, and can cause the walk to continue on a sub-node by calling
+the `c` argument on it with `(node, state)` arguments. The optional
+`base` argument provides the fallback walker functions for node types
+that aren't handled in the `functions` object. If not given, the
+default walkers will be used.
+
+**make**`(functions, base)` builds a new walker object by using the
+walker functions in `functions` and filling in the missing ones by
+taking defaults from `base`.
+
+**findNodeAt**`(node, start, end, test, base, state)` tries to
+locate a node in a tree at the given start and/or end offsets, which
+satisfies the predicate `test`. `start` and `end` can be either `null`
+(as wildcard) or a number. `test` may be a string (indicating a node
+type) or a function that takes `(nodeType, node)` arguments and
+returns a boolean indicating whether this node is interesting. `base`
+and `state` are optional, and can be used to specify a custom walker.
+Nodes are tested from inner to outer, so if two nodes match the
+boundaries, the inner one will be preferred.
+
+**findNodeAround**`(node, pos, test, base, state)` is a lot like
+`findNodeAt`, but will match any node that exists 'around' (spanning)
+the given position.
+
+**findNodeAfter**`(node, pos, test, base, state)` is similar to
+`findNodeAround`, but will match all nodes *after* the given position
+(testing outer nodes before inner nodes).
+
+## Command line interface
+
+The `bin/acorn` utility can be used to parse a file from the command
+line. It accepts as arguments its input file and the following
+options:
+
+- `--ecma3|--ecma5|--ecma6|--ecma7`: Sets the ECMAScript version to parse. Default is
+  version 5.
+
+- `--module`: Sets the parsing mode to `"module"`. Is set to `"script"` otherwise.
+
+- `--locations`: Attaches a "loc" object to each node with "start" and
+  "end" subobjects, each of which contains the one-based line and
+  zero-based column numbers in `{line, column}` form.
+
+- `--allow-hash-bang`: If the code starts with the characters #! (as in a shellscript), the first line will be treated as a comment.
+
+- `--compact`: No whitespace is used in the AST output.
+
+- `--silent`: Do not output the AST, just return the exit status.
+
+- `--help`: Print the usage information and quit.
+
+The utility spits out the syntax tree as JSON data.
+
+## Build system
+
+Acorn is written in ECMAScript 6, as a set of small modules, in the
+project's `src` directory, and compiled down to bigger ECMAScript 3
+files in `dist` using [Browserify](http://browserify.org) and
+[Babel](http://babeljs.io/). If you are already using Babel, you can
+consider including the modules directly.
+
+The command-line test runner (`npm test`) uses the ES6 modules. The
+browser-based test page (`test/index.html`) uses the compiled modules.
+The `bin/build-acorn.js` script builds the latter from the former.
+
+If you are working on Acorn, you'll probably want to try the code out
+directly, without an intermediate build step. In your scripts, you can
+register the Babel require shim like this:
+
+    require("babel-core/register")
+
+That will allow you to directly `require` the ES6 modules.
+
+## Plugins
+
+Acorn is designed support allow plugins which, within reasonable
+bounds, redefine the way the parser works. Plugins can add new token
+types and new tokenizer contexts (if necessary), and extend methods in
+the parser object. This is not a clean, elegant API—using it requires
+an understanding of Acorn's internals, and plugins are likely to break
+whenever those internals are significantly changed. But still, it is
+_possible_, in this way, to create parsers for JavaScript dialects
+without forking all of Acorn. And in principle it is even possible to
+combine such plugins, so that if you have, for example, a plugin for
+parsing types and a plugin for parsing JSX-style XML literals, you
+could load them both and parse code with both JSX tags and types.
+
+A plugin should register itself by adding a property to
+`acorn.plugins`, which holds a function. Calling `acorn.parse`, a
+`plugins` option can be passed, holding an object mapping plugin names
+to configuration values (or just `true` for plugins that don't take
+options). After the parser object has been created, the initialization
+functions for the chosen plugins are called with `(parser,
+configValue)` arguments. They are expected to use the `parser.extend`
+method to extend parser methods. For example, the `readToken` method
+could be extended like this:
+
+```javascript
+parser.extend("readToken", function(nextMethod) {
+  return function(code) {
+    console.log("Reading a token!")
+    return nextMethod.call(this, code)
+  }
+})
+```
+
+The `nextMethod` argument passed to `extend`'s second argument is the
+previous value of this method, and should usually be called through to
+whenever the extended method does not handle the call itself.
+
+Similarly, the loose parser allows plugins to register themselves via
+`acorn.pluginsLoose`.  The extension mechanism is the same as for the
+normal parser:
+
+```javascript
+looseParser.extend("readToken", function(nextMethod) {
+  return function() {
+    console.log("Reading a token in the loose parser!")
+    return nextMethod.call(this)
+  }
+})
+```
+
+### Existing plugins
+
+ - [`acorn-jsx`](https://github.com/RReverser/acorn-jsx): Parse [Facebook JSX syntax extensions](https://github.com/facebook/jsx)
+ - [`acorn-es7-plugin`](https://github.com/MatAtBread/acorn-es7-plugin/): Parse [async/await syntax proposal](https://github.com/tc39/ecmascript-asyncawait)
+ - [`acorn-object-spread`](https://github.com/UXtemple/acorn-object-spread): Parse [object spread syntax proposal](https://github.com/sebmarkbage/ecmascript-rest-spread)
+ - [`acorn-es7`](https://www.npmjs.com/package/acorn-es7): Parse [decorator syntax proposal](https://github.com/wycats/javascript-decorators)
+ - [`acorn-objj`](https://www.npmjs.com/package/acorn-objj): [Objective-J](http://www.cappuccino-project.org/learn/objective-j.html) language parser built as Acorn plugin

node_modules/acorn/bin/acorn

@@ -0,0 +1,67 @@
+#!/usr/bin/env node
+'use strict';
+
+var path = require('path');
+var fs = require('fs');
+var acorn = require('../dist/acorn.js');
+
+var infile;
+var forceFile;
+var silent = false;
+var compact = false;
+var tokenize = false;
+var options = {}
+
+function help(status) {
+  var print = (status == 0) ? console.log : console.error
+  print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|...|--ecma2015|--ecma2016|...]")
+  print("        [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]")
+  process.exit(status)
+}
+
+for (var i = 2; i < process.argv.length; ++i) {
+  var arg = process.argv[i]
+  if ((arg == "-" || arg[0] != "-") && !infile) infile = arg
+  else if (arg == "--" && !infile && i + 2 == process.argv.length) forceFile = infile = process.argv[++i]
+  else if (arg == "--locations") options.locations = true
+  else if (arg == "--allow-hash-bang") options.allowHashBang = true
+  else if (arg == "--silent") silent = true
+  else if (arg == "--compact") compact = true
+  else if (arg == "--help") help(0)
+  else if (arg == "--tokenize") tokenize = true
+  else if (arg == "--module") options.sourceType = 'module'
+  else {
+    var match = arg.match(/^--ecma(\d+)$/)
+    if (match)
+      options.ecmaVersion = +match[1]
+    else
+      help(1)
+  }
+}
+
+function run(code) {
+  var result
+  if (!tokenize) {
+    try { result = acorn.parse(code, options) }
+    catch(e) { console.error(e.message); process.exit(1) }
+  } else {
+    result = []
+    var tokenizer = acorn.tokenizer(code, options), token
+    while (true) {
+      try { token = tokenizer.getToken() }
+      catch(e) { console.error(e.message); process.exit(1) }
+      result.push(token)
+      if (token.type == acorn.tokTypes.eof) break
+    }
+  }
+  if (!silent) console.log(JSON.stringify(result, null, compact ? null : 2))
+}
+
+if (forceFile || infile && infile != "-") {
+  run(fs.readFileSync(infile, "utf8"))
+} else {
+  var code = ""
+  process.stdin.resume()
+  process.stdin.on("data", function (chunk) { return code += chunk; })
+  process.stdin.on("end", function () { return run(code); })
+}

node_modules/acorn/dist/acorn_loose.es.js

@@ -0,0 +1,1364 @@
+import { defaultOptions, addLooseExports, SourceLocation, tokTypes, tokenizer, Node, lineBreak, isNewLine, getLineInfo, Token, lineBreakG } from './acorn';
+
+// Registered plugins
+var pluginsLoose = {}
+
+var LooseParser = function LooseParser(input, options) {
+  if ( options === void 0 ) options = {};
+
+  this.toks = tokenizer(input, options)
+  this.options = this.toks.options
+  this.input = this.toks.input
+  this.tok = this.last = {type: tokTypes.eof, start: 0, end: 0}
+  if (this.options.locations) {
+    var here = this.toks.curPosition()
+    this.tok.loc = new SourceLocation(this.toks, here, here)
+  }
+  this.ahead = [] // Tokens ahead
+  this.context = [] // Indentation contexted
+  this.curIndent = 0
+  this.curLineStart = 0
+  this.nextLineStart = this.lineEnd(this.curLineStart) + 1
+  this.inAsync = false
+  // Load plugins
+  this.options.pluginsLoose = options.pluginsLoose || {}
+  this.loadPlugins(this.options.pluginsLoose)
+};
+
+LooseParser.prototype.startNode = function startNode () {
+  return new Node(this.toks, this.tok.start, this.options.locations ? this.tok.loc.start : null)
+};
+
+LooseParser.prototype.storeCurrentPos = function storeCurrentPos () {
+  return this.options.locations ? [this.tok.start, this.tok.loc.start] : this.tok.start
+};
+
+LooseParser.prototype.startNodeAt = function startNodeAt (pos) {
+  if (this.options.locations) {
+    return new Node(this.toks, pos[0], pos[1])
+  } else {
+    return new Node(this.toks, pos)
+  }
+};
+
+LooseParser.prototype.finishNode = function finishNode (node, type) {
+  node.type = type
+  node.end = this.last.end
+  if (this.options.locations)
+    node.loc.end = this.last.loc.end
+  if (this.options.ranges)
+    node.range[1] = this.last.end
+  return node
+};
+
+LooseParser.prototype.dummyNode = function dummyNode (type) {
+  var dummy = this.startNode()
+  dummy.type = type
+  dummy.end = dummy.start
+  if (this.options.locations)
+    dummy.loc.end = dummy.loc.start
+  if (this.options.ranges)
+    dummy.range[1] = dummy.start
+  this.last = {type: tokTypes.name, start: dummy.start, end: dummy.start, loc: dummy.loc}
+  return dummy
+};
+
+LooseParser.prototype.dummyIdent = function dummyIdent () {
+  var dummy = this.dummyNode("Identifier")
+  dummy.name = "✖"
+  return dummy
+};
+
+LooseParser.prototype.dummyString = function dummyString () {
+  var dummy = this.dummyNode("Literal")
+  dummy.value = dummy.raw = "✖"
+  return dummy
+};
+
+LooseParser.prototype.eat = function eat (type) {
+  if (this.tok.type === type) {
+    this.next()
+    return true
+  } else {
+    return false
+  }
+};
+
+LooseParser.prototype.isContextual = function isContextual (name) {
+  return this.tok.type === tokTypes.name && this.tok.value === name
+};
+
+LooseParser.prototype.eatContextual = function eatContextual (name) {
+  return this.tok.value === name && this.eat(tokTypes.name)
+};
+
+LooseParser.prototype.canInsertSemicolon = function canInsertSemicolon () {
+  return this.tok.type === tokTypes.eof || this.tok.type === tokTypes.braceR ||
+    lineBreak.test(this.input.slice(this.last.end, this.tok.start))
+};
+
+LooseParser.prototype.semicolon = function semicolon () {
+  return this.eat(tokTypes.semi)
+};
+
+LooseParser.prototype.expect = function expect (type) {
+    var this$1 = this;
+
+  if (this.eat(type)) return true
+  for (var i = 1; i <= 2; i++) {
+    if (this$1.lookAhead(i).type == type) {
+      for (var j = 0; j < i; j++) this$1.next()
+      return true
+    }
+  }
+};
+
+LooseParser.prototype.pushCx = function pushCx () {
+  this.context.push(this.curIndent)
+};
+
+LooseParser.prototype.popCx = function popCx () {
+  this.curIndent = this.context.pop()
+};
+
+LooseParser.prototype.lineEnd = function lineEnd (pos) {
+  while (pos < this.input.length && !isNewLine(this.input.charCodeAt(pos))) ++pos
+  return pos
+};
+
+LooseParser.prototype.indentationAfter = function indentationAfter (pos) {
+    var this$1 = this;
+
+  for (var count = 0;; ++pos) {
+    var ch = this$1.input.charCodeAt(pos)
+    if (ch === 32) ++count
+    else if (ch === 9) count += this$1.options.tabSize
+    else return count
+  }
+};
+
+LooseParser.prototype.closes = function closes (closeTok, indent, line, blockHeuristic) {
+  if (this.tok.type === closeTok || this.tok.type === tokTypes.eof) return true
+  return line != this.curLineStart && this.curIndent < indent && this.tokenStartsLine() &&
+    (!blockHeuristic || this.nextLineStart >= this.input.length ||
+     this.indentationAfter(this.nextLineStart) < indent)
+};
+
+LooseParser.prototype.tokenStartsLine = function tokenStartsLine () {
+    var this$1 = this;
+
+  for (var p = this.tok.start - 1; p >= this.curLineStart; --p) {
+    var ch = this$1.input.charCodeAt(p)
+    if (ch !== 9 && ch !== 32) return false
+  }
+  return true
+};
+
+LooseParser.prototype.extend = function extend (name, f) {
+  this[name] = f(this[name])
+};
+
+LooseParser.prototype.loadPlugins = function loadPlugins (pluginConfigs) {
+    var this$1 = this;
+
+  for (var name in pluginConfigs) {
+    var plugin = pluginsLoose[name]
+    if (!plugin) throw new Error("Plugin '" + name + "' not found")
+    plugin(this$1, pluginConfigs[name])
+  }
+};
+
+var lp = LooseParser.prototype
+
+function isSpace(ch) {
+  return (ch < 14 && ch > 8) || ch === 32 || ch === 160 || isNewLine(ch)
+}
+
+lp.next = function() {
+  var this$1 = this;
+
+  this.last = this.tok
+  if (this.ahead.length)
+    this.tok = this.ahead.shift()
+  else
+    this.tok = this.readToken()
+
+  if (this.tok.start >= this.nextLineStart) {
+    while (this.tok.start >= this.nextLineStart) {
+      this$1.curLineStart = this$1.nextLineStart
+      this$1.nextLineStart = this$1.lineEnd(this$1.curLineStart) + 1
+    }
+    this.curIndent = this.indentationAfter(this.curLineStart)
+  }
+}
+
+lp.readToken = function() {
+  var this$1 = this;
+
+  for (;;) {
+    try {
+      this$1.toks.next()
+      if (this$1.toks.type === tokTypes.dot &&
+          this$1.input.substr(this$1.toks.end, 1) === "." &&
+          this$1.options.ecmaVersion >= 6) {
+        this$1.toks.end++
+        this$1.toks.type = tokTypes.ellipsis
+      }
+      return new Token(this$1.toks)
+    } catch(e) {
+      if (!(e instanceof SyntaxError)) throw e
+
+      // Try to skip some text, based on the error message, and then continue
+      var msg = e.message, pos = e.raisedAt, replace = true
+      if (/unterminated/i.test(msg)) {
+        pos = this$1.lineEnd(e.pos + 1)
+        if (/string/.test(msg)) {
+          replace = {start: e.pos, end: pos, type: tokTypes.string, value: this$1.input.slice(e.pos + 1, pos)}
+        } else if (/regular expr/i.test(msg)) {
+          var re = this$1.input.slice(e.pos, pos)
+          try { re = new RegExp(re) } catch(e) {}
+          replace = {start: e.pos, end: pos, type: tokTypes.regexp, value: re}
+        } else if (/template/.test(msg)) {
+          replace = {start: e.pos, end: pos,
+                     type: tokTypes.template,
+                     value: this$1.input.slice(e.pos, pos)}
+        } else {
+          replace = false
+        }
+      } else if (/invalid (unicode|regexp|number)|expecting unicode|octal literal|is reserved|directly after number|expected number in radix/i.test(msg)) {
+        while (pos < this.input.length && !isSpace(this.input.charCodeAt(pos))) ++pos
+      } else if (/character escape|expected hexadecimal/i.test(msg)) {
+        while (pos < this.input.length) {
+          var ch = this$1.input.charCodeAt(pos++)
+          if (ch === 34 || ch === 39 || isNewLine(ch)) break
+        }
+      } else if (/unexpected character/i.test(msg)) {
+        pos++
+        replace = false
+      } else if (/regular expression/i.test(msg)) {
+        replace = true
+      } else {
+        throw e
+      }
+      this$1.resetTo(pos)
+      if (replace === true) replace = {start: pos, end: pos, type: tokTypes.name, value: "✖"}
+      if (replace) {
+        if (this$1.options.locations)
+          replace.loc = new SourceLocation(
+            this$1.toks,
+            getLineInfo(this$1.input, replace.start),
+            getLineInfo(this$1.input, replace.end))
+        return replace
+      }
+    }
+  }
+}
+
+lp.resetTo = function(pos) {
+  var this$1 = this;
+
+  this.toks.pos = pos
+  var ch = this.input.charAt(pos - 1)
+  this.toks.exprAllowed = !ch || /[\[\{\(,;:?\/*=+\-~!|&%^<>]/.test(ch) ||
+    /[enwfd]/.test(ch) &&
+    /\b(keywords|case|else|return|throw|new|in|(instance|type)of|delete|void)$/.test(this.input.slice(pos - 10, pos))
+
+  if (this.options.locations) {
+    this.toks.curLine = 1
+    this.toks.lineStart = lineBreakG.lastIndex = 0
+    var match
+    while ((match = lineBreakG.exec(this.input)) && match.index < pos) {
+      ++this$1.toks.curLine
+      this$1.toks.lineStart = match.index + match[0].length
+    }
+  }
+}
+
+lp.lookAhead = function(n) {
+  var this$1 = this;
+
+  while (n > this.ahead.length)
+    this$1.ahead.push(this$1.readToken())
+  return this.ahead[n - 1]
+}
+
+function isDummy(node) { return node.name == "✖" }
+
+var lp$1 = LooseParser.prototype
+
+lp$1.parseTopLevel = function() {
+  var this$1 = this;
+
+  var node = this.startNodeAt(this.options.locations ? [0, getLineInfo(this.input, 0)] : 0)
+  node.body = []
+  while (this.tok.type !== tokTypes.eof) node.body.push(this$1.parseStatement())
+  this.last = this.tok
+  if (this.options.ecmaVersion >= 6) {
+    node.sourceType = this.options.sourceType
+  }
+  return this.finishNode(node, "Program")
+}
+
+lp$1.parseStatement = function() {
+  var this$1 = this;
+
+  var starttype = this.tok.type, node = this.startNode(), kind
+
+  if (this.toks.isLet()) {
+    starttype = tokTypes._var
+    kind = "let"
+  }
+
+  switch (starttype) {
+  case tokTypes._break: case tokTypes._continue:
+    this.next()
+    var isBreak = starttype === tokTypes._break
+    if (this.semicolon() || this.canInsertSemicolon()) {
+      node.label = null
+    } else {
+      node.label = this.tok.type === tokTypes.name ? this.parseIdent() : null
+      this.semicolon()
+    }
+    return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
+
+  case tokTypes._debugger:
+    this.next()
+    this.semicolon()
+    return this.finishNode(node, "DebuggerStatement")
+
+  case tokTypes._do:
+    this.next()
+    node.body = this.parseStatement()
+    node.test = this.eat(tokTypes._while) ? this.parseParenExpression() : this.dummyIdent()
+    this.semicolon()
+    return this.finishNode(node, "DoWhileStatement")
+
+  case tokTypes._for:
+    this.next()
+    this.pushCx()
+    this.expect(tokTypes.parenL)
+    if (this.tok.type === tokTypes.semi) return this.parseFor(node, null)
+    var isLet = this.toks.isLet()
+    if (isLet || this.tok.type === tokTypes._var || this.tok.type === tokTypes._const) {
+      var init$1 = this.parseVar(true, isLet ? "let" : this.tok.value)
+      if (init$1.declarations.length === 1 && (this.tok.type === tokTypes._in || this.isContextual("of"))) {
+        return this.parseForIn(node, init$1)
+      }
+      return this.parseFor(node, init$1)
+    }
+    var init = this.parseExpression(true)
+    if (this.tok.type === tokTypes._in || this.isContextual("of"))
+      return this.parseForIn(node, this.toAssignable(init))
+    return this.parseFor(node, init)
+
+  case tokTypes._function:
+    this.next()
+    return this.parseFunction(node, true)
+
+  case tokTypes._if:
+    this.next()
+    node.test = this.parseParenExpression()
+    node.consequent = this.parseStatement()
+    node.alternate = this.eat(tokTypes._else) ? this.parseStatement() : null
+    return this.finishNode(node, "IfStatement")
+
+  case tokTypes._return:
+    this.next()
+    if (this.eat(tokTypes.semi) || this.canInsertSemicolon()) node.argument = null
+    else { node.argument = this.parseExpression(); this.semicolon() }
+    return this.finishNode(node, "ReturnStatement")
+
+  case tokTypes._switch:
+    var blockIndent = this.curIndent, line = this.curLineStart
+    this.next()
+    node.discriminant = this.parseParenExpression()
+    node.cases = []
+    this.pushCx()
+    this.expect(tokTypes.braceL)
+
+    var cur
+    while (!this.closes(tokTypes.braceR, blockIndent, line, true)) {
+      if (this$1.tok.type === tokTypes._case || this$1.tok.type === tokTypes._default) {
+        var isCase = this$1.tok.type === tokTypes._case
+        if (cur) this$1.finishNode(cur, "SwitchCase")
+        node.cases.push(cur = this$1.startNode())
+        cur.consequent = []
+        this$1.next()
+        if (isCase) cur.test = this$1.parseExpression()
+        else cur.test = null
+        this$1.expect(tokTypes.colon)
+      } else {
+        if (!cur) {
+          node.cases.push(cur = this$1.startNode())
+          cur.consequent = []
+          cur.test = null
+        }
+        cur.consequent.push(this$1.parseStatement())
+      }
+    }
+    if (cur) this.finishNode(cur, "SwitchCase")
+    this.popCx()
+    this.eat(tokTypes.braceR)
+    return this.finishNode(node, "SwitchStatement")
+
+  case tokTypes._throw:
+    this.next()
+    node.argument = this.parseExpression()
+    this.semicolon()
+    return this.finishNode(node, "ThrowStatement")
+
+  case tokTypes._try:
+    this.next()
+    node.block = this.parseBlock()
+    node.handler = null
+    if (this.tok.type === tokTypes._catch) {
+      var clause = this.startNode()
+      this.next()
+      this.expect(tokTypes.parenL)
+      clause.param = this.toAssignable(this.parseExprAtom(), true)
+      this.expect(tokTypes.parenR)
+      clause.body = this.parseBlock()
+      node.handler = this.finishNode(clause, "CatchClause")
+    }
+    node.finalizer = this.eat(tokTypes._finally) ? this.parseBlock() : null
+    if (!node.handler && !node.finalizer) return node.block
+    return this.finishNode(node, "TryStatement")
+
+  case tokTypes._var:
+  case tokTypes._const:
+    return this.parseVar(false, kind || this.tok.value)
+
+  case tokTypes._while:
+    this.next()
+    node.test = this.parseParenExpression()
+    node.body = this.parseStatement()
+    return this.finishNode(node, "WhileStatement")
+
+  case tokTypes._with:
+    this.next()
+    node.object = this.parseParenExpression()
+    node.body = this.parseStatement()
+    return this.finishNode(node, "WithStatement")
+
+  case tokTypes.braceL:
+    return this.parseBlock()
+
+  case tokTypes.semi:
+    this.next()
+    return this.finishNode(node, "EmptyStatement")
+
+  case tokTypes._class:
+    return this.parseClass(true)
+
+  case tokTypes._import:
+    return this.parseImport()
+
+  case tokTypes._export:
+    return this.parseExport()
+
+  default:
+    if (this.toks.isAsyncFunction()) {
+      this.next()
+      this.next()
+      return this.parseFunction(node, true, true)
+    }
+    var expr = this.parseExpression()
+    if (isDummy(expr)) {
+      this.next()
+      if (this.tok.type === tokTypes.eof) return this.finishNode(node, "EmptyStatement")
+      return this.parseStatement()
+    } else if (starttype === tokTypes.name && expr.type === "Identifier" && this.eat(tokTypes.colon)) {
+      node.body = this.parseStatement()
+      node.label = expr
+      return this.finishNode(node, "LabeledStatement")
+    } else {
+      node.expression = expr
+      this.semicolon()
+      return this.finishNode(node, "ExpressionStatement")
+    }
+  }
+}
+
+lp$1.parseBlock = function() {
+  var this$1 = this;
+
+  var node = this.startNode()
+  this.pushCx()
+  this.expect(tokTypes.braceL)
+  var blockIndent = this.curIndent, line = this.curLineStart
+  node.body = []
+  while (!this.closes(tokTypes.braceR, blockIndent, line, true))
+    node.body.push(this$1.parseStatement())
+  this.popCx()
+  this.eat(tokTypes.braceR)
+  return this.finishNode(node, "BlockStatement")
+}
+
+lp$1.parseFor = function(node, init) {
+  node.init = init
+  node.test = node.update = null
+  if (this.eat(tokTypes.semi) && this.tok.type !== tokTypes.semi) node.test = this.parseExpression()
+  if (this.eat(tokTypes.semi) && this.tok.type !== tokTypes.parenR) node.update = this.parseExpression()
+  this.popCx()
+  this.expect(tokTypes.parenR)
+  node.body = this.parseStatement()
+  return this.finishNode(node, "ForStatement")
+}
+
+lp$1.parseForIn = function(node, init) {
+  var type = this.tok.type === tokTypes._in ? "ForInStatement" : "ForOfStatement"
+  this.next()
+  node.left = init
+  node.right = this.parseExpression()
+  this.popCx()
+  this.expect(tokTypes.parenR)
+  node.body = this.parseStatement()
+  return this.finishNode(node, type)
+}
+
+lp$1.parseVar = function(noIn, kind) {
+  var this$1 = this;
+
+  var node = this.startNode()
+  node.kind = kind
+  this.next()
+  node.declarations = []
+  do {
+    var decl = this$1.startNode()
+    decl.id = this$1.options.ecmaVersion >= 6 ? this$1.toAssignable(this$1.parseExprAtom(), true) : this$1.parseIdent()
+    decl.init = this$1.eat(tokTypes.eq) ? this$1.parseMaybeAssign(noIn) : null
+    node.declarations.push(this$1.finishNode(decl, "VariableDeclarator"))
+  } while (this.eat(tokTypes.comma))
+  if (!node.declarations.length) {
+    var decl$1 = this.startNode()
+    decl$1.id = this.dummyIdent()
+    node.declarations.push(this.finishNode(decl$1, "VariableDeclarator"))
+  }
+  if (!noIn) this.semicolon()
+  return this.finishNode(node, "VariableDeclaration")
+}
+
+lp$1.parseClass = function(isStatement) {
+  var this$1 = this;
+
+  var node = this.startNode()
+  this.next()
+  if (isStatement == null) isStatement = this.tok.type === tokTypes.name
+  if (this.tok.type === tokTypes.name) node.id = this.parseIdent()
+  else if (isStatement) node.id = this.dummyIdent()
+  else node.id = null
+  node.superClass = this.eat(tokTypes._extends) ? this.parseExpression() : null
+  node.body = this.startNode()
+  node.body.body = []
+  this.pushCx()
+  var indent = this.curIndent + 1, line = this.curLineStart
+  this.eat(tokTypes.braceL)
+  if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart }
+  while (!this.closes(tokTypes.braceR, indent, line)) {
+    if (this$1.semicolon()) continue
+    var method = this$1.startNode(), isGenerator, isAsync
+    if (this$1.options.ecmaVersion >= 6) {
+      method.static = false
+      isGenerator = this$1.eat(tokTypes.star)
+    }
+    this$1.parsePropertyName(method)
+    if (isDummy(method.key)) { if (isDummy(this$1.parseMaybeAssign())) this$1.next(); this$1.eat(tokTypes.comma); continue }
+    if (method.key.type === "Identifier" && !method.computed && method.key.name === "static" &&
+        (this$1.tok.type != tokTypes.parenL && this$1.tok.type != tokTypes.braceL)) {
+      method.static = true
+      isGenerator = this$1.eat(tokTypes.star)
+      this$1.parsePropertyName(method)
+    } else {
+      method.static = false
+    }
+    if (!method.computed &&
+        method.key.type === "Identifier" && method.key.name === "async" && this$1.tok.type !== tokTypes.parenL &&
+        !this$1.canInsertSemicolon()) {
+      this$1.parsePropertyName(method)
+      isAsync = true
+    } else {
+      isAsync = false
+    }
+    if (this$1.options.ecmaVersion >= 5 && method.key.type === "Identifier" &&
+        !method.computed && (method.key.name === "get" || method.key.name === "set") &&
+        this$1.tok.type !== tokTypes.parenL && this$1.tok.type !== tokTypes.braceL) {
+      method.kind = method.key.name
+      this$1.parsePropertyName(method)
+      method.value = this$1.parseMethod(false)
+    } else {
+      if (!method.computed && !method.static && !isGenerator && !isAsync && (
+        method.key.type === "Identifier" && method.key.name === "constructor" ||
+          method.key.type === "Literal" && method.key.value === "constructor")) {
+        method.kind = "constructor"
+      } else {
+        method.kind =  "method"
+      }
+      method.value = this$1.parseMethod(isGenerator, isAsync)
+    }
+    node.body.body.push(this$1.finishNode(method, "MethodDefinition"))
+  }
+  this.popCx()
+  if (!this.eat(tokTypes.braceR)) {
+    // If there is no closing brace, make the node span to the start
+    // of the next token (this is useful for Tern)
+    this.last.end = this.tok.start
+    if (this.options.locations) this.last.loc.end = this.tok.loc.start
+  }
+  this.semicolon()
+  this.finishNode(node.body, "ClassBody")
+  return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
+}
+
+lp$1.parseFunction = function(node, isStatement, isAsync) {
+  var oldInAsync = this.inAsync
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 6) {
+    node.generator = this.eat(tokTypes.star)
+  }
+  if (this.options.ecmaVersion >= 8) {
+    node.async = !!isAsync
+  }
+  if (isStatement == null) isStatement = this.tok.type === tokTypes.name
+  if (this.tok.type === tokTypes.name) node.id = this.parseIdent()
+  else if (isStatement) node.id = this.dummyIdent()
+  this.inAsync = node.async
+  node.params = this.parseFunctionParams()
+  node.body = this.parseBlock()
+  this.inAsync = oldInAsync
+  return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
+}
+
+lp$1.parseExport = function() {
+  var node = this.startNode()
+  this.next()
+  if (this.eat(tokTypes.star)) {
+    node.source = this.eatContextual("from") ? this.parseExprAtom() : this.dummyString()
+    return this.finishNode(node, "ExportAllDeclaration")
+  }
+  if (this.eat(tokTypes._default)) {
+    // export default (function foo() {}) // This is FunctionExpression.
+    var isAsync
+    if (this.tok.type === tokTypes._function || (isAsync = this.toks.isAsyncFunction())) {
+      var fNode = this.startNode()
+      this.next()
+      if (isAsync) this.next()
+      node.declaration = this.parseFunction(fNode, null, isAsync)
+    } else if (this.tok.type === tokTypes._class) {
+      node.declaration = this.parseClass(null)
+    } else {
+      node.declaration = this.parseMaybeAssign()
+      this.semicolon()
+    }
+    return this.finishNode(node, "ExportDefaultDeclaration")
+  }
+  if (this.tok.type.keyword || this.toks.isLet() || this.toks.isAsyncFunction()) {
+    node.declaration = this.parseStatement()
+    node.specifiers = []
+    node.source = null
+  } else {
+    node.declaration = null
+    node.specifiers = this.parseExportSpecifierList()
+    node.source = this.eatContextual("from") ? this.parseExprAtom() : null
+    this.semicolon()
+  }
+  return this.finishNode(node, "ExportNamedDeclaration")
+}
+
+lp$1.parseImport = function() {
+  var node = this.startNode()
+  this.next()
+  if (this.tok.type === tokTypes.string) {
+    node.specifiers = []
+    node.source = this.parseExprAtom()
+    node.kind = ''
+  } else {
+    var elt
+    if (this.tok.type === tokTypes.name && this.tok.value !== "from") {
+      elt = this.startNode()
+      elt.local = this.parseIdent()
+      this.finishNode(elt, "ImportDefaultSpecifier")
+      this.eat(tokTypes.comma)
+    }
+    node.specifiers = this.parseImportSpecifierList()
+    node.source = this.eatContextual("from") && this.tok.type == tokTypes.string ? this.parseExprAtom() : this.dummyString()
+    if (elt) node.specifiers.unshift(elt)
+  }
+  this.semicolon()
+  return this.finishNode(node, "ImportDeclaration")
+}
+
+lp$1.parseImportSpecifierList = function() {
+  var this$1 = this;
+
+  var elts = []
+  if (this.tok.type === tokTypes.star) {
+    var elt = this.startNode()
+    this.next()
+    elt.local = this.eatContextual("as") ? this.parseIdent() : this.dummyIdent()
+    elts.push(this.finishNode(elt, "ImportNamespaceSpecifier"))
+  } else {
+    var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart
+    this.pushCx()
+    this.eat(tokTypes.braceL)
+    if (this.curLineStart > continuedLine) continuedLine = this.curLineStart
+    while (!this.closes(tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+      var elt$1 = this$1.startNode()
+      if (this$1.eat(tokTypes.star)) {
+        elt$1.local = this$1.eatContextual("as") ? this$1.parseIdent() : this$1.dummyIdent()
+        this$1.finishNode(elt$1, "ImportNamespaceSpecifier")
+      } else {
+        if (this$1.isContextual("from")) break
+        elt$1.imported = this$1.parseIdent()
+        if (isDummy(elt$1.imported)) break
+        elt$1.local = this$1.eatContextual("as") ? this$1.parseIdent() : elt$1.imported
+        this$1.finishNode(elt$1, "ImportSpecifier")
+      }
+      elts.push(elt$1)
+      this$1.eat(tokTypes.comma)
+    }
+    this.eat(tokTypes.braceR)
+    this.popCx()
+  }
+  return elts
+}
+
+lp$1.parseExportSpecifierList = function() {
+  var this$1 = this;
+
+  var elts = []
+  var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart
+  this.pushCx()
+  this.eat(tokTypes.braceL)
+  if (this.curLineStart > continuedLine) continuedLine = this.curLineStart
+  while (!this.closes(tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+    if (this$1.isContextual("from")) break
+    var elt = this$1.startNode()
+    elt.local = this$1.parseIdent()
+    if (isDummy(elt.local)) break
+    elt.exported = this$1.eatContextual("as") ? this$1.parseIdent() : elt.local
+    this$1.finishNode(elt, "ExportSpecifier")
+    elts.push(elt)
+    this$1.eat(tokTypes.comma)
+  }
+  this.eat(tokTypes.braceR)
+  this.popCx()
+  return elts
+}
+
+var lp$2 = LooseParser.prototype
+
+lp$2.checkLVal = function(expr) {
+  if (!expr) return expr
+  switch (expr.type) {
+  case "Identifier":
+  case "MemberExpression":
+    return expr
+
+  case "ParenthesizedExpression":
+    expr.expression = this.checkLVal(expr.expression)
+    return expr
+
+  default:
+    return this.dummyIdent()
+  }
+}
+
+lp$2.parseExpression = function(noIn) {
+  var this$1 = this;
+
+  var start = this.storeCurrentPos()
+  var expr = this.parseMaybeAssign(noIn)
+  if (this.tok.type === tokTypes.comma) {
+    var node = this.startNodeAt(start)
+    node.expressions = [expr]
+    while (this.eat(tokTypes.comma)) node.expressions.push(this$1.parseMaybeAssign(noIn))
+    return this.finishNode(node, "SequenceExpression")
+  }
+  return expr
+}
+
+lp$2.parseParenExpression = function() {
+  this.pushCx()
+  this.expect(tokTypes.parenL)
+  var val = this.parseExpression()
+  this.popCx()
+  this.expect(tokTypes.parenR)
+  return val
+}
+
+lp$2.parseMaybeAssign = function(noIn) {
+  if (this.toks.isContextual("yield")) {
+    var node = this.startNode()
+    this.next()
+    if (this.semicolon() || this.canInsertSemicolon() || (this.tok.type != tokTypes.star && !this.tok.type.startsExpr)) {
+      node.delegate = false
+      node.argument = null
+    } else {
+      node.delegate = this.eat(tokTypes.star)
+      node.argument = this.parseMaybeAssign()
+    }
+    return this.finishNode(node, "YieldExpression")
+  }
+
+  var start = this.storeCurrentPos()
+  var left = this.parseMaybeConditional(noIn)
+  if (this.tok.type.isAssign) {
+    var node$1 = this.startNodeAt(start)
+    node$1.operator = this.tok.value
+    node$1.left = this.tok.type === tokTypes.eq ? this.toAssignable(left) : this.checkLVal(left)
+    this.next()
+    node$1.right = this.parseMaybeAssign(noIn)
+    return this.finishNode(node$1, "AssignmentExpression")
+  }
+  return left
+}
+
+lp$2.parseMaybeConditional = function(noIn) {
+  var start = this.storeCurrentPos()
+  var expr = this.parseExprOps(noIn)
+  if (this.eat(tokTypes.question)) {
+    var node = this.startNodeAt(start)
+    node.test = expr
+    node.consequent = this.parseMaybeAssign()
+    node.alternate = this.expect(tokTypes.colon) ? this.parseMaybeAssign(noIn) : this.dummyIdent()
+    return this.finishNode(node, "ConditionalExpression")
+  }
+  return expr
+}
+
+lp$2.parseExprOps = function(noIn) {
+  var start = this.storeCurrentPos()
+  var indent = this.curIndent, line = this.curLineStart
+  return this.parseExprOp(this.parseMaybeUnary(false), start, -1, noIn, indent, line)
+}
+
+lp$2.parseExprOp = function(left, start, minPrec, noIn, indent, line) {
+  if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) return left
+  var prec = this.tok.type.binop
+  if (prec != null && (!noIn || this.tok.type !== tokTypes._in)) {
+    if (prec > minPrec) {
+      var node = this.startNodeAt(start)
+      node.left = left
+      node.operator = this.tok.value
+      this.next()
+      if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) {
+        node.right = this.dummyIdent()
+      } else {
+        var rightStart = this.storeCurrentPos()
+        node.right = this.parseExprOp(this.parseMaybeUnary(false), rightStart, prec, noIn, indent, line)
+      }
+      this.finishNode(node, /&&|\|\|/.test(node.operator) ? "LogicalExpression" : "BinaryExpression")
+      return this.parseExprOp(node, start, minPrec, noIn, indent, line)
+    }
+  }
+  return left
+}
+
+lp$2.parseMaybeUnary = function(sawUnary) {
+  var this$1 = this;
+
+  var start = this.storeCurrentPos(), expr
+  if (this.options.ecmaVersion >= 8 && this.inAsync && this.toks.isContextual("await")) {
+    expr = this.parseAwait()
+    sawUnary = true
+  } else if (this.tok.type.prefix) {
+    var node = this.startNode(), update = this.tok.type === tokTypes.incDec
+    if (!update) sawUnary = true
+    node.operator = this.tok.value
+    node.prefix = true
+    this.next()
+    node.argument = this.parseMaybeUnary(true)
+    if (update) node.argument = this.checkLVal(node.argument)
+    expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression")
+  } else if (this.tok.type === tokTypes.ellipsis) {
+    var node$1 = this.startNode()
+    this.next()
+    node$1.argument = this.parseMaybeUnary(sawUnary)
+    expr = this.finishNode(node$1, "SpreadElement")
+  } else {
+    expr = this.parseExprSubscripts()
+    while (this.tok.type.postfix && !this.canInsertSemicolon()) {
+      var node$2 = this$1.startNodeAt(start)
+      node$2.operator = this$1.tok.value
+      node$2.prefix = false
+      node$2.argument = this$1.checkLVal(expr)
+      this$1.next()
+      expr = this$1.finishNode(node$2, "UpdateExpression")
+    }
+  }
+
+  if (!sawUnary && this.eat(tokTypes.starstar)) {
+    var node$3 = this.startNodeAt(start)
+    node$3.operator = "**"
+    node$3.left = expr
+    node$3.right = this.parseMaybeUnary(false)
+    return this.finishNode(node$3, "BinaryExpression")
+  }
+
+  return expr
+}
+
+lp$2.parseExprSubscripts = function() {
+  var start = this.storeCurrentPos()
+  return this.parseSubscripts(this.parseExprAtom(), start, false, this.curIndent, this.curLineStart)
+}
+
+lp$2.parseSubscripts = function(base, start, noCalls, startIndent, line) {
+  var this$1 = this;
+
+  for (;;) {
+    if (this$1.curLineStart != line && this$1.curIndent <= startIndent && this$1.tokenStartsLine()) {
+      if (this$1.tok.type == tokTypes.dot && this$1.curIndent == startIndent)
+        --startIndent
+      else
+        return base
+    }
+
+    var maybeAsyncArrow = base.type === "Identifier" && base.name === "async" && !this$1.canInsertSemicolon()
+
+    if (this$1.eat(tokTypes.dot)) {
+      var node = this$1.startNodeAt(start)
+      node.object = base
+      if (this$1.curLineStart != line && this$1.curIndent <= startIndent && this$1.tokenStartsLine())
+        node.property = this$1.dummyIdent()
+      else
+        node.property = this$1.parsePropertyAccessor() || this$1.dummyIdent()
+      node.computed = false
+      base = this$1.finishNode(node, "MemberExpression")
+    } else if (this$1.tok.type == tokTypes.bracketL) {
+      this$1.pushCx()
+      this$1.next()
+      var node$1 = this$1.startNodeAt(start)
+      node$1.object = base
+      node$1.property = this$1.parseExpression()
+      node$1.computed = true
+      this$1.popCx()
+      this$1.expect(tokTypes.bracketR)
+      base = this$1.finishNode(node$1, "MemberExpression")
+    } else if (!noCalls && this$1.tok.type == tokTypes.parenL) {
+      var exprList = this$1.parseExprList(tokTypes.parenR)
+      if (maybeAsyncArrow && this$1.eat(tokTypes.arrow))
+        return this$1.parseArrowExpression(this$1.startNodeAt(start), exprList, true)
+      var node$2 = this$1.startNodeAt(start)
+      node$2.callee = base
+      node$2.arguments = exprList
+      base = this$1.finishNode(node$2, "CallExpression")
+    } else if (this$1.tok.type == tokTypes.backQuote) {
+      var node$3 = this$1.startNodeAt(start)
+      node$3.tag = base
+      node$3.quasi = this$1.parseTemplate()
+      base = this$1.finishNode(node$3, "TaggedTemplateExpression")
+    } else {
+      return base
+    }
+  }
+}
+
+lp$2.parseExprAtom = function() {
+  var node
+  switch (this.tok.type) {
+  case tokTypes._this:
+  case tokTypes._super:
+    var type = this.tok.type === tokTypes._this ? "ThisExpression" : "Super"
+    node = this.startNode()
+    this.next()
+    return this.finishNode(node, type)
+
+  case tokTypes.name:
+    var start = this.storeCurrentPos()
+    var id = this.parseIdent()
+    var isAsync = false
+    if (id.name === "async" && !this.canInsertSemicolon()) {
+      if (this.eat(tokTypes._function))
+        return this.parseFunction(this.startNodeAt(start), false, true)
+      if (this.tok.type === tokTypes.name) {
+        id = this.parseIdent()
+        isAsync = true
+      }
+    }
+    return this.eat(tokTypes.arrow) ? this.parseArrowExpression(this.startNodeAt(start), [id], isAsync) : id
+
+  case tokTypes.regexp:
+    node = this.startNode()
+    var val = this.tok.value
+    node.regex = {pattern: val.pattern, flags: val.flags}
+    node.value = val.value
+    node.raw = this.input.slice(this.tok.start, this.tok.end)
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case tokTypes.num: case tokTypes.string:
+    node = this.startNode()
+    node.value = this.tok.value
+    node.raw = this.input.slice(this.tok.start, this.tok.end)
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case tokTypes._null: case tokTypes._true: case tokTypes._false:
+    node = this.startNode()
+    node.value = this.tok.type === tokTypes._null ? null : this.tok.type === tokTypes._true
+    node.raw = this.tok.type.keyword
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case tokTypes.parenL:
+    var parenStart = this.storeCurrentPos()
+    this.next()
+    var inner = this.parseExpression()
+    this.expect(tokTypes.parenR)
+    if (this.eat(tokTypes.arrow)) {
+      // (a,)=>a // SequenceExpression makes dummy in the last hole. Drop the dummy.
+      var params = inner.expressions || [inner]
+      if (params.length && isDummy(params[params.length - 1]))
+        params.pop()
+      return this.parseArrowExpression(this.startNodeAt(parenStart), params)
+    }
+    if (this.options.preserveParens) {
+      var par = this.startNodeAt(parenStart)
+      par.expression = inner
+      inner = this.finishNode(par, "ParenthesizedExpression")
+    }
+    return inner
+
+  case tokTypes.bracketL:
+    node = this.startNode()
+    node.elements = this.parseExprList(tokTypes.bracketR, true)
+    return this.finishNode(node, "ArrayExpression")
+
+  case tokTypes.braceL:
+    return this.parseObj()
+
+  case tokTypes._class:
+    return this.parseClass(false)
+
+  case tokTypes._function:
+    node = this.startNode()
+    this.next()
+    return this.parseFunction(node, false)
+
+  case tokTypes._new:
+    return this.parseNew()
+
+  case tokTypes.backQuote:
+    return this.parseTemplate()
+
+  default:
+    return this.dummyIdent()
+  }
+}
+
+lp$2.parseNew = function() {
+  var node = this.startNode(), startIndent = this.curIndent, line = this.curLineStart
+  var meta = this.parseIdent(true)
+  if (this.options.ecmaVersion >= 6 && this.eat(tokTypes.dot)) {
+    node.meta = meta
+    node.property = this.parseIdent(true)
+    return this.finishNode(node, "MetaProperty")
+  }
+  var start = this.storeCurrentPos()
+  node.callee = this.parseSubscripts(this.parseExprAtom(), start, true, startIndent, line)
+  if (this.tok.type == tokTypes.parenL) {
+    node.arguments = this.parseExprList(tokTypes.parenR)
+  } else {
+    node.arguments = []
+  }
+  return this.finishNode(node, "NewExpression")
+}
+
+lp$2.parseTemplateElement = function() {
+  var elem = this.startNode()
+  elem.value = {
+    raw: this.input.slice(this.tok.start, this.tok.end).replace(/\r\n?/g, '\n'),
+    cooked: this.tok.value
+  }
+  this.next()
+  elem.tail = this.tok.type === tokTypes.backQuote
+  return this.finishNode(elem, "TemplateElement")
+}
+
+lp$2.parseTemplate = function() {
+  var this$1 = this;
+
+  var node = this.startNode()
+  this.next()
+  node.expressions = []
+  var curElt = this.parseTemplateElement()
+  node.quasis = [curElt]
+  while (!curElt.tail) {
+    this$1.next()
+    node.expressions.push(this$1.parseExpression())
+    if (this$1.expect(tokTypes.braceR)) {
+      curElt = this$1.parseTemplateElement()
+    } else {
+      curElt = this$1.startNode()
+      curElt.value = {cooked: '', raw: ''}
+      curElt.tail = true
+      this$1.finishNode(curElt, "TemplateElement")
+    }
+    node.quasis.push(curElt)
+  }
+  this.expect(tokTypes.backQuote)
+  return this.finishNode(node, "TemplateLiteral")
+}
+
+lp$2.parseObj = function() {
+  var this$1 = this;
+
+  var node = this.startNode()
+  node.properties = []
+  this.pushCx()
+  var indent = this.curIndent + 1, line = this.curLineStart
+  this.eat(tokTypes.braceL)
+  if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart }
+  while (!this.closes(tokTypes.braceR, indent, line)) {
+    var prop = this$1.startNode(), isGenerator, isAsync, start
+    if (this$1.options.ecmaVersion >= 6) {
+      start = this$1.storeCurrentPos()
+      prop.method = false
+      prop.shorthand = false
+      isGenerator = this$1.eat(tokTypes.star)
+    }
+    this$1.parsePropertyName(prop)
+    if (!prop.computed &&
+        prop.key.type === "Identifier" && prop.key.name === "async" && this$1.tok.type !== tokTypes.parenL &&
+        this$1.tok.type !== tokTypes.colon && !this$1.canInsertSemicolon()) {
+      this$1.parsePropertyName(prop)
+      isAsync = true
+    } else {
+      isAsync = false
+    }
+    if (isDummy(prop.key)) { if (isDummy(this$1.parseMaybeAssign())) this$1.next(); this$1.eat(tokTypes.comma); continue }
+    if (this$1.eat(tokTypes.colon)) {
+      prop.kind = "init"
+      prop.value = this$1.parseMaybeAssign()
+    } else if (this$1.options.ecmaVersion >= 6 && (this$1.tok.type === tokTypes.parenL || this$1.tok.type === tokTypes.braceL)) {
+      prop.kind = "init"
+      prop.method = true
+      prop.value = this$1.parseMethod(isGenerator, isAsync)
+    } else if (this$1.options.ecmaVersion >= 5 && prop.key.type === "Identifier" &&
+               !prop.computed && (prop.key.name === "get" || prop.key.name === "set") &&
+               (this$1.tok.type != tokTypes.comma && this$1.tok.type != tokTypes.braceR)) {
+      prop.kind = prop.key.name
+      this$1.parsePropertyName(prop)
+      prop.value = this$1.parseMethod(false)
+    } else {
+      prop.kind = "init"
+      if (this$1.options.ecmaVersion >= 6) {
+        if (this$1.eat(tokTypes.eq)) {
+          var assign = this$1.startNodeAt(start)
+          assign.operator = "="
+          assign.left = prop.key
+          assign.right = this$1.parseMaybeAssign()
+          prop.value = this$1.finishNode(assign, "AssignmentExpression")
+        } else {
+          prop.value = prop.key
+        }
+      } else {
+        prop.value = this$1.dummyIdent()
+      }
+      prop.shorthand = true
+    }
+    node.properties.push(this$1.finishNode(prop, "Property"))
+    this$1.eat(tokTypes.comma)
+  }
+  this.popCx()
+  if (!this.eat(tokTypes.braceR)) {
+    // If there is no closing brace, make the node span to the start
+    // of the next token (this is useful for Tern)
+    this.last.end = this.tok.start
+    if (this.options.locations) this.last.loc.end = this.tok.loc.start
+  }
+  return this.finishNode(node, "ObjectExpression")
+}
+
+lp$2.parsePropertyName = function(prop) {
+  if (this.options.ecmaVersion >= 6) {
+    if (this.eat(tokTypes.bracketL)) {
+      prop.computed = true
+      prop.key = this.parseExpression()
+      this.expect(tokTypes.bracketR)
+      return
+    } else {
+      prop.computed = false
+    }
+  }
+  var key = (this.tok.type === tokTypes.num || this.tok.type === tokTypes.string) ? this.parseExprAtom() : this.parseIdent()
+  prop.key = key || this.dummyIdent()
+}
+
+lp$2.parsePropertyAccessor = function() {
+  if (this.tok.type === tokTypes.name || this.tok.type.keyword) return this.parseIdent()
+}
+
+lp$2.parseIdent = function() {
+  var name = this.tok.type === tokTypes.name ? this.tok.value : this.tok.type.keyword
+  if (!name) return this.dummyIdent()
+  var node = this.startNode()
+  this.next()
+  node.name = name
+  return this.finishNode(node, "Identifier")
+}
+
+lp$2.initFunction = function(node) {
+  node.id = null
+  node.params = []
+  if (this.options.ecmaVersion >= 6) {
+    node.generator = false
+    node.expression = false
+  }
+  if (this.options.ecmaVersion >= 8)
+    node.async = false
+}
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+lp$2.toAssignable = function(node, binding) {
+  var this$1 = this;
+
+  if (!node || node.type == "Identifier" || (node.type == "MemberExpression" && !binding)) {
+    // Okay
+  } else if (node.type == "ParenthesizedExpression") {
+    node.expression = this.toAssignable(node.expression, binding)
+  } else if (this.options.ecmaVersion < 6) {
+    return this.dummyIdent()
+  } else if (node.type == "ObjectExpression") {
+    node.type = "ObjectPattern"
+    var props = node.properties
+    for (var i = 0; i < props.length; i++)
+      props[i].value = this$1.toAssignable(props[i].value, binding)
+  } else if (node.type == "ArrayExpression") {
+    node.type = "ArrayPattern"
+    this.toAssignableList(node.elements, binding)
+  } else if (node.type == "SpreadElement") {
+    node.type = "RestElement"
+    node.argument = this.toAssignable(node.argument, binding)
+  } else if (node.type == "AssignmentExpression") {
+    node.type = "AssignmentPattern"
+    delete node.operator
+  } else {
+    return this.dummyIdent()
+  }
+  return node
+}
+
+lp$2.toAssignableList = function(exprList, binding) {
+  var this$1 = this;
+
+  for (var i = 0; i < exprList.length; i++)
+    exprList[i] = this$1.toAssignable(exprList[i], binding)
+  return exprList
+}
+
+lp$2.parseFunctionParams = function(params) {
+  params = this.parseExprList(tokTypes.parenR)
+  return this.toAssignableList(params, true)
+}
+
+lp$2.parseMethod = function(isGenerator, isAsync) {
+  var node = this.startNode(), oldInAsync = this.inAsync
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 6)
+    node.generator = !!isGenerator
+  if (this.options.ecmaVersion >= 8)
+    node.async = !!isAsync
+  this.inAsync = node.async
+  node.params = this.parseFunctionParams()
+  node.expression = this.options.ecmaVersion >= 6 && this.tok.type !== tokTypes.braceL
+  node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock()
+  this.inAsync = oldInAsync
+  return this.finishNode(node, "FunctionExpression")
+}
+
+lp$2.parseArrowExpression = function(node, params, isAsync) {
+  var oldInAsync = this.inAsync
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 8)
+    node.async = !!isAsync
+  this.inAsync = node.async
+  node.params = this.toAssignableList(params, true)
+  node.expression = this.tok.type !== tokTypes.braceL
+  node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock()
+  this.inAsync = oldInAsync
+  return this.finishNode(node, "ArrowFunctionExpression")
+}
+
+lp$2.parseExprList = function(close, allowEmpty) {
+  var this$1 = this;
+
+  this.pushCx()
+  var indent = this.curIndent, line = this.curLineStart, elts = []
+  this.next() // Opening bracket
+  while (!this.closes(close, indent + 1, line)) {
+    if (this$1.eat(tokTypes.comma)) {
+      elts.push(allowEmpty ? null : this$1.dummyIdent())
+      continue
+    }
+    var elt = this$1.parseMaybeAssign()
+    if (isDummy(elt)) {
+      if (this$1.closes(close, indent, line)) break
+      this$1.next()
+    } else {
+      elts.push(elt)
+    }
+    this$1.eat(tokTypes.comma)
+  }
+  this.popCx()
+  if (!this.eat(close)) {
+    // If there is no closing brace, make the node span to the start
+    // of the next token (this is useful for Tern)
+    this.last.end = this.tok.start
+    if (this.options.locations) this.last.loc.end = this.tok.loc.start
+  }
+  return elts
+}
+
+lp$2.parseAwait = function() {
+  var node = this.startNode()
+  this.next()
+  node.argument = this.parseMaybeUnary()
+  return this.finishNode(node, "AwaitExpression")
+}
+
+// Acorn: Loose parser
+//
+// This module provides an alternative parser (`parse_dammit`) that
+// exposes that same interface as `parse`, but will try to parse
+// anything as JavaScript, repairing syntax error the best it can.
+// There are circumstances in which it will raise an error and give
+// up, but they are very rare. The resulting AST will be a mostly
+// valid JavaScript AST (as per the [Mozilla parser API][api], except
+// that:
+//
+// - Return outside functions is allowed
+//
+// - Label consistency (no conflicts, break only to existing labels)
+//   is not enforced.
+//
+// - Bogus Identifier nodes with a name of `"✖"` are inserted whenever
+//   the parser got too confused to return anything meaningful.
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+//
+// The expected use for this is to *first* try `acorn.parse`, and only
+// if that fails switch to `parse_dammit`. The loose parser might
+// parse badly indented code incorrectly, so **don't** use it as
+// your default parser.
+//
+// Quite a lot of acorn.js is duplicated here. The alternative was to
+// add a *lot* of extra cruft to that file, making it less readable
+// and slower. Copying and editing the code allowed me to make
+// invasive changes and simplifications without creating a complicated
+// tangle.
+
+defaultOptions.tabSize = 4
+
+function parse_dammit(input, options) {
+  var p = new LooseParser(input, options)
+  p.next()
+  return p.parseTopLevel()
+}
+
+addLooseExports(parse_dammit, LooseParser, pluginsLoose)
+
+export { parse_dammit, LooseParser, pluginsLoose };

node_modules/acorn/dist/acorn_loose.js

@@ -0,0 +1,1374 @@
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('./acorn')) :
+  typeof define === 'function' && define.amd ? define(['exports', './acorn'], factory) :
+  (factory((global.acorn = global.acorn || {}, global.acorn.loose = global.acorn.loose || {}),global.acorn));
+}(this, (function (exports,__acorn) { 'use strict';
+
+// Registered plugins
+var pluginsLoose = {}
+
+var LooseParser = function LooseParser(input, options) {
+  if ( options === void 0 ) options = {};
+
+  this.toks = __acorn.tokenizer(input, options)
+  this.options = this.toks.options
+  this.input = this.toks.input
+  this.tok = this.last = {type: __acorn.tokTypes.eof, start: 0, end: 0}
+  if (this.options.locations) {
+    var here = this.toks.curPosition()
+    this.tok.loc = new __acorn.SourceLocation(this.toks, here, here)
+  }
+  this.ahead = [] // Tokens ahead
+  this.context = [] // Indentation contexted
+  this.curIndent = 0
+  this.curLineStart = 0
+  this.nextLineStart = this.lineEnd(this.curLineStart) + 1
+  this.inAsync = false
+  // Load plugins
+  this.options.pluginsLoose = options.pluginsLoose || {}
+  this.loadPlugins(this.options.pluginsLoose)
+};
+
+LooseParser.prototype.startNode = function startNode () {
+  return new __acorn.Node(this.toks, this.tok.start, this.options.locations ? this.tok.loc.start : null)
+};
+
+LooseParser.prototype.storeCurrentPos = function storeCurrentPos () {
+  return this.options.locations ? [this.tok.start, this.tok.loc.start] : this.tok.start
+};
+
+LooseParser.prototype.startNodeAt = function startNodeAt (pos) {
+  if (this.options.locations) {
+    return new __acorn.Node(this.toks, pos[0], pos[1])
+  } else {
+    return new __acorn.Node(this.toks, pos)
+  }
+};
+
+LooseParser.prototype.finishNode = function finishNode (node, type) {
+  node.type = type
+  node.end = this.last.end
+  if (this.options.locations)
+    node.loc.end = this.last.loc.end
+  if (this.options.ranges)
+    node.range[1] = this.last.end
+  return node
+};
+
+LooseParser.prototype.dummyNode = function dummyNode (type) {
+  var dummy = this.startNode()
+  dummy.type = type
+  dummy.end = dummy.start
+  if (this.options.locations)
+    dummy.loc.end = dummy.loc.start
+  if (this.options.ranges)
+    dummy.range[1] = dummy.start
+  this.last = {type: __acorn.tokTypes.name, start: dummy.start, end: dummy.start, loc: dummy.loc}
+  return dummy
+};
+
+LooseParser.prototype.dummyIdent = function dummyIdent () {
+  var dummy = this.dummyNode("Identifier")
+  dummy.name = "✖"
+  return dummy
+};
+
+LooseParser.prototype.dummyString = function dummyString () {
+  var dummy = this.dummyNode("Literal")
+  dummy.value = dummy.raw = "✖"
+  return dummy
+};
+
+LooseParser.prototype.eat = function eat (type) {
+  if (this.tok.type === type) {
+    this.next()
+    return true
+  } else {
+    return false
+  }
+};
+
+LooseParser.prototype.isContextual = function isContextual (name) {
+  return this.tok.type === __acorn.tokTypes.name && this.tok.value === name
+};
+
+LooseParser.prototype.eatContextual = function eatContextual (name) {
+  return this.tok.value === name && this.eat(__acorn.tokTypes.name)
+};
+
+LooseParser.prototype.canInsertSemicolon = function canInsertSemicolon () {
+  return this.tok.type === __acorn.tokTypes.eof || this.tok.type === __acorn.tokTypes.braceR ||
+    __acorn.lineBreak.test(this.input.slice(this.last.end, this.tok.start))
+};
+
+LooseParser.prototype.semicolon = function semicolon () {
+  return this.eat(__acorn.tokTypes.semi)
+};
+
+LooseParser.prototype.expect = function expect (type) {
+    var this$1 = this;
+
+  if (this.eat(type)) return true
+  for (var i = 1; i <= 2; i++) {
+    if (this$1.lookAhead(i).type == type) {
+      for (var j = 0; j < i; j++) this$1.next()
+      return true
+    }
+  }
+};
+
+LooseParser.prototype.pushCx = function pushCx () {
+  this.context.push(this.curIndent)
+};
+
+LooseParser.prototype.popCx = function popCx () {
+  this.curIndent = this.context.pop()
+};
+
+LooseParser.prototype.lineEnd = function lineEnd (pos) {
+  while (pos < this.input.length && !__acorn.isNewLine(this.input.charCodeAt(pos))) ++pos
+  return pos
+};
+
+LooseParser.prototype.indentationAfter = function indentationAfter (pos) {
+    var this$1 = this;
+
+  for (var count = 0;; ++pos) {
+    var ch = this$1.input.charCodeAt(pos)
+    if (ch === 32) ++count
+    else if (ch === 9) count += this$1.options.tabSize
+    else return count
+  }
+};
+
+LooseParser.prototype.closes = function closes (closeTok, indent, line, blockHeuristic) {
+  if (this.tok.type === closeTok || this.tok.type === __acorn.tokTypes.eof) return true
+  return line != this.curLineStart && this.curIndent < indent && this.tokenStartsLine() &&
+    (!blockHeuristic || this.nextLineStart >= this.input.length ||
+     this.indentationAfter(this.nextLineStart) < indent)
+};
+
+LooseParser.prototype.tokenStartsLine = function tokenStartsLine () {
+    var this$1 = this;
+
+  for (var p = this.tok.start - 1; p >= this.curLineStart; --p) {
+    var ch = this$1.input.charCodeAt(p)
+    if (ch !== 9 && ch !== 32) return false
+  }
+  return true
+};
+
+LooseParser.prototype.extend = function extend (name, f) {
+  this[name] = f(this[name])
+};
+
+LooseParser.prototype.loadPlugins = function loadPlugins (pluginConfigs) {
+    var this$1 = this;
+
+  for (var name in pluginConfigs) {
+    var plugin = pluginsLoose[name]
+    if (!plugin) throw new Error("Plugin '" + name + "' not found")
+    plugin(this$1, pluginConfigs[name])
+  }
+};
+
+var lp = LooseParser.prototype
+
+function isSpace(ch) {
+  return (ch < 14 && ch > 8) || ch === 32 || ch === 160 || __acorn.isNewLine(ch)
+}
+
+lp.next = function() {
+  var this$1 = this;
+
+  this.last = this.tok
+  if (this.ahead.length)
+    this.tok = this.ahead.shift()
+  else
+    this.tok = this.readToken()
+
+  if (this.tok.start >= this.nextLineStart) {
+    while (this.tok.start >= this.nextLineStart) {
+      this$1.curLineStart = this$1.nextLineStart
+      this$1.nextLineStart = this$1.lineEnd(this$1.curLineStart) + 1
+    }
+    this.curIndent = this.indentationAfter(this.curLineStart)
+  }
+}
+
+lp.readToken = function() {
+  var this$1 = this;
+
+  for (;;) {
+    try {
+      this$1.toks.next()
+      if (this$1.toks.type === __acorn.tokTypes.dot &&
+          this$1.input.substr(this$1.toks.end, 1) === "." &&
+          this$1.options.ecmaVersion >= 6) {
+        this$1.toks.end++
+        this$1.toks.type = __acorn.tokTypes.ellipsis
+      }
+      return new __acorn.Token(this$1.toks)
+    } catch(e) {
+      if (!(e instanceof SyntaxError)) throw e
+
+      // Try to skip some text, based on the error message, and then continue
+      var msg = e.message, pos = e.raisedAt, replace = true
+      if (/unterminated/i.test(msg)) {
+        pos = this$1.lineEnd(e.pos + 1)
+        if (/string/.test(msg)) {
+          replace = {start: e.pos, end: pos, type: __acorn.tokTypes.string, value: this$1.input.slice(e.pos + 1, pos)}
+        } else if (/regular expr/i.test(msg)) {
+          var re = this$1.input.slice(e.pos, pos)
+          try { re = new RegExp(re) } catch(e) {}
+          replace = {start: e.pos, end: pos, type: __acorn.tokTypes.regexp, value: re}
+        } else if (/template/.test(msg)) {
+          replace = {start: e.pos, end: pos,
+                     type: __acorn.tokTypes.template,
+                     value: this$1.input.slice(e.pos, pos)}
+        } else {
+          replace = false
+        }
+      } else if (/invalid (unicode|regexp|number)|expecting unicode|octal literal|is reserved|directly after number|expected number in radix/i.test(msg)) {
+        while (pos < this.input.length && !isSpace(this.input.charCodeAt(pos))) ++pos
+      } else if (/character escape|expected hexadecimal/i.test(msg)) {
+        while (pos < this.input.length) {
+          var ch = this$1.input.charCodeAt(pos++)
+          if (ch === 34 || ch === 39 || __acorn.isNewLine(ch)) break
+        }
+      } else if (/unexpected character/i.test(msg)) {
+        pos++
+        replace = false
+      } else if (/regular expression/i.test(msg)) {
+        replace = true
+      } else {
+        throw e
+      }
+      this$1.resetTo(pos)
+      if (replace === true) replace = {start: pos, end: pos, type: __acorn.tokTypes.name, value: "✖"}
+      if (replace) {
+        if (this$1.options.locations)
+          replace.loc = new __acorn.SourceLocation(
+            this$1.toks,
+            __acorn.getLineInfo(this$1.input, replace.start),
+            __acorn.getLineInfo(this$1.input, replace.end))
+        return replace
+      }
+    }
+  }
+}
+
+lp.resetTo = function(pos) {
+  var this$1 = this;
+
+  this.toks.pos = pos
+  var ch = this.input.charAt(pos - 1)
+  this.toks.exprAllowed = !ch || /[\[\{\(,;:?\/*=+\-~!|&%^<>]/.test(ch) ||
+    /[enwfd]/.test(ch) &&
+    /\b(keywords|case|else|return|throw|new|in|(instance|type)of|delete|void)$/.test(this.input.slice(pos - 10, pos))
+
+  if (this.options.locations) {
+    this.toks.curLine = 1
+    this.toks.lineStart = __acorn.lineBreakG.lastIndex = 0
+    var match
+    while ((match = __acorn.lineBreakG.exec(this.input)) && match.index < pos) {
+      ++this$1.toks.curLine
+      this$1.toks.lineStart = match.index + match[0].length
+    }
+  }
+}
+
+lp.lookAhead = function(n) {
+  var this$1 = this;
+
+  while (n > this.ahead.length)
+    this$1.ahead.push(this$1.readToken())
+  return this.ahead[n - 1]
+}
+
+function isDummy(node) { return node.name == "✖" }
+
+var lp$1 = LooseParser.prototype
+
+lp$1.parseTopLevel = function() {
+  var this$1 = this;
+
+  var node = this.startNodeAt(this.options.locations ? [0, __acorn.getLineInfo(this.input, 0)] : 0)
+  node.body = []
+  while (this.tok.type !== __acorn.tokTypes.eof) node.body.push(this$1.parseStatement())
+  this.last = this.tok
+  if (this.options.ecmaVersion >= 6) {
+    node.sourceType = this.options.sourceType
+  }
+  return this.finishNode(node, "Program")
+}
+
+lp$1.parseStatement = function() {
+  var this$1 = this;
+
+  var starttype = this.tok.type, node = this.startNode(), kind
+
+  if (this.toks.isLet()) {
+    starttype = __acorn.tokTypes._var
+    kind = "let"
+  }
+
+  switch (starttype) {
+  case __acorn.tokTypes._break: case __acorn.tokTypes._continue:
+    this.next()
+    var isBreak = starttype === __acorn.tokTypes._break
+    if (this.semicolon() || this.canInsertSemicolon()) {
+      node.label = null
+    } else {
+      node.label = this.tok.type === __acorn.tokTypes.name ? this.parseIdent() : null
+      this.semicolon()
+    }
+    return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
+
+  case __acorn.tokTypes._debugger:
+    this.next()
+    this.semicolon()
+    return this.finishNode(node, "DebuggerStatement")
+
+  case __acorn.tokTypes._do:
+    this.next()
+    node.body = this.parseStatement()
+    node.test = this.eat(__acorn.tokTypes._while) ? this.parseParenExpression() : this.dummyIdent()
+    this.semicolon()
+    return this.finishNode(node, "DoWhileStatement")
+
+  case __acorn.tokTypes._for:
+    this.next()
+    this.pushCx()
+    this.expect(__acorn.tokTypes.parenL)
+    if (this.tok.type === __acorn.tokTypes.semi) return this.parseFor(node, null)
+    var isLet = this.toks.isLet()
+    if (isLet || this.tok.type === __acorn.tokTypes._var || this.tok.type === __acorn.tokTypes._const) {
+      var init$1 = this.parseVar(true, isLet ? "let" : this.tok.value)
+      if (init$1.declarations.length === 1 && (this.tok.type === __acorn.tokTypes._in || this.isContextual("of"))) {
+        return this.parseForIn(node, init$1)
+      }
+      return this.parseFor(node, init$1)
+    }
+    var init = this.parseExpression(true)
+    if (this.tok.type === __acorn.tokTypes._in || this.isContextual("of"))
+      return this.parseForIn(node, this.toAssignable(init))
+    return this.parseFor(node, init)
+
+  case __acorn.tokTypes._function:
+    this.next()
+    return this.parseFunction(node, true)
+
+  case __acorn.tokTypes._if:
+    this.next()
+    node.test = this.parseParenExpression()
+    node.consequent = this.parseStatement()
+    node.alternate = this.eat(__acorn.tokTypes._else) ? this.parseStatement() : null
+    return this.finishNode(node, "IfStatement")
+
+  case __acorn.tokTypes._return:
+    this.next()
+    if (this.eat(__acorn.tokTypes.semi) || this.canInsertSemicolon()) node.argument = null
+    else { node.argument = this.parseExpression(); this.semicolon() }
+    return this.finishNode(node, "ReturnStatement")
+
+  case __acorn.tokTypes._switch:
+    var blockIndent = this.curIndent, line = this.curLineStart
+    this.next()
+    node.discriminant = this.parseParenExpression()
+    node.cases = []
+    this.pushCx()
+    this.expect(__acorn.tokTypes.braceL)
+
+    var cur
+    while (!this.closes(__acorn.tokTypes.braceR, blockIndent, line, true)) {
+      if (this$1.tok.type === __acorn.tokTypes._case || this$1.tok.type === __acorn.tokTypes._default) {
+        var isCase = this$1.tok.type === __acorn.tokTypes._case
+        if (cur) this$1.finishNode(cur, "SwitchCase")
+        node.cases.push(cur = this$1.startNode())
+        cur.consequent = []
+        this$1.next()
+        if (isCase) cur.test = this$1.parseExpression()
+        else cur.test = null
+        this$1.expect(__acorn.tokTypes.colon)
+      } else {
+        if (!cur) {
+          node.cases.push(cur = this$1.startNode())
+          cur.consequent = []
+          cur.test = null
+        }
+        cur.consequent.push(this$1.parseStatement())
+      }
+    }
+    if (cur) this.finishNode(cur, "SwitchCase")
+    this.popCx()
+    this.eat(__acorn.tokTypes.braceR)
+    return this.finishNode(node, "SwitchStatement")
+
+  case __acorn.tokTypes._throw:
+    this.next()
+    node.argument = this.parseExpression()
+    this.semicolon()
+    return this.finishNode(node, "ThrowStatement")
+
+  case __acorn.tokTypes._try:
+    this.next()
+    node.block = this.parseBlock()
+    node.handler = null
+    if (this.tok.type === __acorn.tokTypes._catch) {
+      var clause = this.startNode()
+      this.next()
+      this.expect(__acorn.tokTypes.parenL)
+      clause.param = this.toAssignable(this.parseExprAtom(), true)
+      this.expect(__acorn.tokTypes.parenR)
+      clause.body = this.parseBlock()
+      node.handler = this.finishNode(clause, "CatchClause")
+    }
+    node.finalizer = this.eat(__acorn.tokTypes._finally) ? this.parseBlock() : null
+    if (!node.handler && !node.finalizer) return node.block
+    return this.finishNode(node, "TryStatement")
+
+  case __acorn.tokTypes._var:
+  case __acorn.tokTypes._const:
+    return this.parseVar(false, kind || this.tok.value)
+
+  case __acorn.tokTypes._while:
+    this.next()
+    node.test = this.parseParenExpression()
+    node.body = this.parseStatement()
+    return this.finishNode(node, "WhileStatement")
+
+  case __acorn.tokTypes._with:
+    this.next()
+    node.object = this.parseParenExpression()
+    node.body = this.parseStatement()
+    return this.finishNode(node, "WithStatement")
+
+  case __acorn.tokTypes.braceL:
+    return this.parseBlock()
+
+  case __acorn.tokTypes.semi:
+    this.next()
+    return this.finishNode(node, "EmptyStatement")
+
+  case __acorn.tokTypes._class:
+    return this.parseClass(true)
+
+  case __acorn.tokTypes._import:
+    return this.parseImport()
+
+  case __acorn.tokTypes._export:
+    return this.parseExport()
+
+  default:
+    if (this.toks.isAsyncFunction()) {
+      this.next()
+      this.next()
+      return this.parseFunction(node, true, true)
+    }
+    var expr = this.parseExpression()
+    if (isDummy(expr)) {
+      this.next()
+      if (this.tok.type === __acorn.tokTypes.eof) return this.finishNode(node, "EmptyStatement")
+      return this.parseStatement()
+    } else if (starttype === __acorn.tokTypes.name && expr.type === "Identifier" && this.eat(__acorn.tokTypes.colon)) {
+      node.body = this.parseStatement()
+      node.label = expr
+      return this.finishNode(node, "LabeledStatement")
+    } else {
+      node.expression = expr
+      this.semicolon()
+      return this.finishNode(node, "ExpressionStatement")
+    }
+  }
+}
+
+lp$1.parseBlock = function() {
+  var this$1 = this;
+
+  var node = this.startNode()
+  this.pushCx()
+  this.expect(__acorn.tokTypes.braceL)
+  var blockIndent = this.curIndent, line = this.curLineStart
+  node.body = []
+  while (!this.closes(__acorn.tokTypes.braceR, blockIndent, line, true))
+    node.body.push(this$1.parseStatement())
+  this.popCx()
+  this.eat(__acorn.tokTypes.braceR)
+  return this.finishNode(node, "BlockStatement")
+}
+
+lp$1.parseFor = function(node, init) {
+  node.init = init
+  node.test = node.update = null
+  if (this.eat(__acorn.tokTypes.semi) && this.tok.type !== __acorn.tokTypes.semi) node.test = this.parseExpression()
+  if (this.eat(__acorn.tokTypes.semi) && this.tok.type !== __acorn.tokTypes.parenR) node.update = this.parseExpression()
+  this.popCx()
+  this.expect(__acorn.tokTypes.parenR)
+  node.body = this.parseStatement()
+  return this.finishNode(node, "ForStatement")
+}
+
+lp$1.parseForIn = function(node, init) {
+  var type = this.tok.type === __acorn.tokTypes._in ? "ForInStatement" : "ForOfStatement"
+  this.next()
+  node.left = init
+  node.right = this.parseExpression()
+  this.popCx()
+  this.expect(__acorn.tokTypes.parenR)
+  node.body = this.parseStatement()
+  return this.finishNode(node, type)
+}
+
+lp$1.parseVar = function(noIn, kind) {
+  var this$1 = this;
+
+  var node = this.startNode()
+  node.kind = kind
+  this.next()
+  node.declarations = []
+  do {
+    var decl = this$1.startNode()
+    decl.id = this$1.options.ecmaVersion >= 6 ? this$1.toAssignable(this$1.parseExprAtom(), true) : this$1.parseIdent()
+    decl.init = this$1.eat(__acorn.tokTypes.eq) ? this$1.parseMaybeAssign(noIn) : null
+    node.declarations.push(this$1.finishNode(decl, "VariableDeclarator"))
+  } while (this.eat(__acorn.tokTypes.comma))
+  if (!node.declarations.length) {
+    var decl$1 = this.startNode()
+    decl$1.id = this.dummyIdent()
+    node.declarations.push(this.finishNode(decl$1, "VariableDeclarator"))
+  }
+  if (!noIn) this.semicolon()
+  return this.finishNode(node, "VariableDeclaration")
+}
+
+lp$1.parseClass = function(isStatement) {
+  var this$1 = this;
+
+  var node = this.startNode()
+  this.next()
+  if (isStatement == null) isStatement = this.tok.type === __acorn.tokTypes.name
+  if (this.tok.type === __acorn.tokTypes.name) node.id = this.parseIdent()
+  else if (isStatement) node.id = this.dummyIdent()
+  else node.id = null
+  node.superClass = this.eat(__acorn.tokTypes._extends) ? this.parseExpression() : null
+  node.body = this.startNode()
+  node.body.body = []
+  this.pushCx()
+  var indent = this.curIndent + 1, line = this.curLineStart
+  this.eat(__acorn.tokTypes.braceL)
+  if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart }
+  while (!this.closes(__acorn.tokTypes.braceR, indent, line)) {
+    if (this$1.semicolon()) continue
+    var method = this$1.startNode(), isGenerator, isAsync
+    if (this$1.options.ecmaVersion >= 6) {
+      method.static = false
+      isGenerator = this$1.eat(__acorn.tokTypes.star)
+    }
+    this$1.parsePropertyName(method)
+    if (isDummy(method.key)) { if (isDummy(this$1.parseMaybeAssign())) this$1.next(); this$1.eat(__acorn.tokTypes.comma); continue }
+    if (method.key.type === "Identifier" && !method.computed && method.key.name === "static" &&
+        (this$1.tok.type != __acorn.tokTypes.parenL && this$1.tok.type != __acorn.tokTypes.braceL)) {
+      method.static = true
+      isGenerator = this$1.eat(__acorn.tokTypes.star)
+      this$1.parsePropertyName(method)
+    } else {
+      method.static = false
+    }
+    if (!method.computed &&
+        method.key.type === "Identifier" && method.key.name === "async" && this$1.tok.type !== __acorn.tokTypes.parenL &&
+        !this$1.canInsertSemicolon()) {
+      this$1.parsePropertyName(method)
+      isAsync = true
+    } else {
+      isAsync = false
+    }
+    if (this$1.options.ecmaVersion >= 5 && method.key.type === "Identifier" &&
+        !method.computed && (method.key.name === "get" || method.key.name === "set") &&
+        this$1.tok.type !== __acorn.tokTypes.parenL && this$1.tok.type !== __acorn.tokTypes.braceL) {
+      method.kind = method.key.name
+      this$1.parsePropertyName(method)
+      method.value = this$1.parseMethod(false)
+    } else {
+      if (!method.computed && !method.static && !isGenerator && !isAsync && (
+        method.key.type === "Identifier" && method.key.name === "constructor" ||
+          method.key.type === "Literal" && method.key.value === "constructor")) {
+        method.kind = "constructor"
+      } else {
+        method.kind =  "method"
+      }
+      method.value = this$1.parseMethod(isGenerator, isAsync)
+    }
+    node.body.body.push(this$1.finishNode(method, "MethodDefinition"))
+  }
+  this.popCx()
+  if (!this.eat(__acorn.tokTypes.braceR)) {
+    // If there is no closing brace, make the node span to the start
+    // of the next token (this is useful for Tern)
+    this.last.end = this.tok.start
+    if (this.options.locations) this.last.loc.end = this.tok.loc.start
+  }
+  this.semicolon()
+  this.finishNode(node.body, "ClassBody")
+  return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
+}
+
+lp$1.parseFunction = function(node, isStatement, isAsync) {
+  var oldInAsync = this.inAsync
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 6) {
+    node.generator = this.eat(__acorn.tokTypes.star)
+  }
+  if (this.options.ecmaVersion >= 8) {
+    node.async = !!isAsync
+  }
+  if (isStatement == null) isStatement = this.tok.type === __acorn.tokTypes.name
+  if (this.tok.type === __acorn.tokTypes.name) node.id = this.parseIdent()
+  else if (isStatement) node.id = this.dummyIdent()
+  this.inAsync = node.async
+  node.params = this.parseFunctionParams()
+  node.body = this.parseBlock()
+  this.inAsync = oldInAsync
+  return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
+}
+
+lp$1.parseExport = function() {
+  var node = this.startNode()
+  this.next()
+  if (this.eat(__acorn.tokTypes.star)) {
+    node.source = this.eatContextual("from") ? this.parseExprAtom() : this.dummyString()
+    return this.finishNode(node, "ExportAllDeclaration")
+  }
+  if (this.eat(__acorn.tokTypes._default)) {
+    // export default (function foo() {}) // This is FunctionExpression.
+    var isAsync
+    if (this.tok.type === __acorn.tokTypes._function || (isAsync = this.toks.isAsyncFunction())) {
+      var fNode = this.startNode()
+      this.next()
+      if (isAsync) this.next()
+      node.declaration = this.parseFunction(fNode, null, isAsync)
+    } else if (this.tok.type === __acorn.tokTypes._class) {
+      node.declaration = this.parseClass(null)
+    } else {
+      node.declaration = this.parseMaybeAssign()
+      this.semicolon()
+    }
+    return this.finishNode(node, "ExportDefaultDeclaration")
+  }
+  if (this.tok.type.keyword || this.toks.isLet() || this.toks.isAsyncFunction()) {
+    node.declaration = this.parseStatement()
+    node.specifiers = []
+    node.source = null
+  } else {
+    node.declaration = null
+    node.specifiers = this.parseExportSpecifierList()
+    node.source = this.eatContextual("from") ? this.parseExprAtom() : null
+    this.semicolon()
+  }
+  return this.finishNode(node, "ExportNamedDeclaration")
+}
+
+lp$1.parseImport = function() {
+  var node = this.startNode()
+  this.next()
+  if (this.tok.type === __acorn.tokTypes.string) {
+    node.specifiers = []
+    node.source = this.parseExprAtom()
+    node.kind = ''
+  } else {
+    var elt
+    if (this.tok.type === __acorn.tokTypes.name && this.tok.value !== "from") {
+      elt = this.startNode()
+      elt.local = this.parseIdent()
+      this.finishNode(elt, "ImportDefaultSpecifier")
+      this.eat(__acorn.tokTypes.comma)
+    }
+    node.specifiers = this.parseImportSpecifierList()
+    node.source = this.eatContextual("from") && this.tok.type == __acorn.tokTypes.string ? this.parseExprAtom() : this.dummyString()
+    if (elt) node.specifiers.unshift(elt)
+  }
+  this.semicolon()
+  return this.finishNode(node, "ImportDeclaration")
+}
+
+lp$1.parseImportSpecifierList = function() {
+  var this$1 = this;
+
+  var elts = []
+  if (this.tok.type === __acorn.tokTypes.star) {
+    var elt = this.startNode()
+    this.next()
+    elt.local = this.eatContextual("as") ? this.parseIdent() : this.dummyIdent()
+    elts.push(this.finishNode(elt, "ImportNamespaceSpecifier"))
+  } else {
+    var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart
+    this.pushCx()
+    this.eat(__acorn.tokTypes.braceL)
+    if (this.curLineStart > continuedLine) continuedLine = this.curLineStart
+    while (!this.closes(__acorn.tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+      var elt$1 = this$1.startNode()
+      if (this$1.eat(__acorn.tokTypes.star)) {
+        elt$1.local = this$1.eatContextual("as") ? this$1.parseIdent() : this$1.dummyIdent()
+        this$1.finishNode(elt$1, "ImportNamespaceSpecifier")
+      } else {
+        if (this$1.isContextual("from")) break
+        elt$1.imported = this$1.parseIdent()
+        if (isDummy(elt$1.imported)) break
+        elt$1.local = this$1.eatContextual("as") ? this$1.parseIdent() : elt$1.imported
+        this$1.finishNode(elt$1, "ImportSpecifier")
+      }
+      elts.push(elt$1)
+      this$1.eat(__acorn.tokTypes.comma)
+    }
+    this.eat(__acorn.tokTypes.braceR)
+    this.popCx()
+  }
+  return elts
+}
+
+lp$1.parseExportSpecifierList = function() {
+  var this$1 = this;
+
+  var elts = []
+  var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart
+  this.pushCx()
+  this.eat(__acorn.tokTypes.braceL)
+  if (this.curLineStart > continuedLine) continuedLine = this.curLineStart
+  while (!this.closes(__acorn.tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+    if (this$1.isContextual("from")) break
+    var elt = this$1.startNode()
+    elt.local = this$1.parseIdent()
+    if (isDummy(elt.local)) break
+    elt.exported = this$1.eatContextual("as") ? this$1.parseIdent() : elt.local
+    this$1.finishNode(elt, "ExportSpecifier")
+    elts.push(elt)
+    this$1.eat(__acorn.tokTypes.comma)
+  }
+  this.eat(__acorn.tokTypes.braceR)
+  this.popCx()
+  return elts
+}
+
+var lp$2 = LooseParser.prototype
+
+lp$2.checkLVal = function(expr) {
+  if (!expr) return expr
+  switch (expr.type) {
+  case "Identifier":
+  case "MemberExpression":
+    return expr
+
+  case "ParenthesizedExpression":
+    expr.expression = this.checkLVal(expr.expression)
+    return expr
+
+  default:
+    return this.dummyIdent()
+  }
+}
+
+lp$2.parseExpression = function(noIn) {
+  var this$1 = this;
+
+  var start = this.storeCurrentPos()
+  var expr = this.parseMaybeAssign(noIn)
+  if (this.tok.type === __acorn.tokTypes.comma) {
+    var node = this.startNodeAt(start)
+    node.expressions = [expr]
+    while (this.eat(__acorn.tokTypes.comma)) node.expressions.push(this$1.parseMaybeAssign(noIn))
+    return this.finishNode(node, "SequenceExpression")
+  }
+  return expr
+}
+
+lp$2.parseParenExpression = function() {
+  this.pushCx()
+  this.expect(__acorn.tokTypes.parenL)
+  var val = this.parseExpression()
+  this.popCx()
+  this.expect(__acorn.tokTypes.parenR)
+  return val
+}
+
+lp$2.parseMaybeAssign = function(noIn) {
+  if (this.toks.isContextual("yield")) {
+    var node = this.startNode()
+    this.next()
+    if (this.semicolon() || this.canInsertSemicolon() || (this.tok.type != __acorn.tokTypes.star && !this.tok.type.startsExpr)) {
+      node.delegate = false
+      node.argument = null
+    } else {
+      node.delegate = this.eat(__acorn.tokTypes.star)
+      node.argument = this.parseMaybeAssign()
+    }
+    return this.finishNode(node, "YieldExpression")
+  }
+
+  var start = this.storeCurrentPos()
+  var left = this.parseMaybeConditional(noIn)
+  if (this.tok.type.isAssign) {
+    var node$1 = this.startNodeAt(start)
+    node$1.operator = this.tok.value
+    node$1.left = this.tok.type === __acorn.tokTypes.eq ? this.toAssignable(left) : this.checkLVal(left)
+    this.next()
+    node$1.right = this.parseMaybeAssign(noIn)
+    return this.finishNode(node$1, "AssignmentExpression")
+  }
+  return left
+}
+
+lp$2.parseMaybeConditional = function(noIn) {
+  var start = this.storeCurrentPos()
+  var expr = this.parseExprOps(noIn)
+  if (this.eat(__acorn.tokTypes.question)) {
+    var node = this.startNodeAt(start)
+    node.test = expr
+    node.consequent = this.parseMaybeAssign()
+    node.alternate = this.expect(__acorn.tokTypes.colon) ? this.parseMaybeAssign(noIn) : this.dummyIdent()
+    return this.finishNode(node, "ConditionalExpression")
+  }
+  return expr
+}
+
+lp$2.parseExprOps = function(noIn) {
+  var start = this.storeCurrentPos()
+  var indent = this.curIndent, line = this.curLineStart
+  return this.parseExprOp(this.parseMaybeUnary(false), start, -1, noIn, indent, line)
+}
+
+lp$2.parseExprOp = function(left, start, minPrec, noIn, indent, line) {
+  if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) return left
+  var prec = this.tok.type.binop
+  if (prec != null && (!noIn || this.tok.type !== __acorn.tokTypes._in)) {
+    if (prec > minPrec) {
+      var node = this.startNodeAt(start)
+      node.left = left
+      node.operator = this.tok.value
+      this.next()
+      if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) {
+        node.right = this.dummyIdent()
+      } else {
+        var rightStart = this.storeCurrentPos()
+        node.right = this.parseExprOp(this.parseMaybeUnary(false), rightStart, prec, noIn, indent, line)
+      }
+      this.finishNode(node, /&&|\|\|/.test(node.operator) ? "LogicalExpression" : "BinaryExpression")
+      return this.parseExprOp(node, start, minPrec, noIn, indent, line)
+    }
+  }
+  return left
+}
+
+lp$2.parseMaybeUnary = function(sawUnary) {
+  var this$1 = this;
+
+  var start = this.storeCurrentPos(), expr
+  if (this.options.ecmaVersion >= 8 && this.inAsync && this.toks.isContextual("await")) {
+    expr = this.parseAwait()
+    sawUnary = true
+  } else if (this.tok.type.prefix) {
+    var node = this.startNode(), update = this.tok.type === __acorn.tokTypes.incDec
+    if (!update) sawUnary = true
+    node.operator = this.tok.value
+    node.prefix = true
+    this.next()
+    node.argument = this.parseMaybeUnary(true)
+    if (update) node.argument = this.checkLVal(node.argument)
+    expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression")
+  } else if (this.tok.type === __acorn.tokTypes.ellipsis) {
+    var node$1 = this.startNode()
+    this.next()
+    node$1.argument = this.parseMaybeUnary(sawUnary)
+    expr = this.finishNode(node$1, "SpreadElement")
+  } else {
+    expr = this.parseExprSubscripts()
+    while (this.tok.type.postfix && !this.canInsertSemicolon()) {
+      var node$2 = this$1.startNodeAt(start)
+      node$2.operator = this$1.tok.value
+      node$2.prefix = false
+      node$2.argument = this$1.checkLVal(expr)
+      this$1.next()
+      expr = this$1.finishNode(node$2, "UpdateExpression")
+    }
+  }
+
+  if (!sawUnary && this.eat(__acorn.tokTypes.starstar)) {
+    var node$3 = this.startNodeAt(start)
+    node$3.operator = "**"
+    node$3.left = expr
+    node$3.right = this.parseMaybeUnary(false)
+    return this.finishNode(node$3, "BinaryExpression")
+  }
+
+  return expr
+}
+
+lp$2.parseExprSubscripts = function() {
+  var start = this.storeCurrentPos()
+  return this.parseSubscripts(this.parseExprAtom(), start, false, this.curIndent, this.curLineStart)
+}
+
+lp$2.parseSubscripts = function(base, start, noCalls, startIndent, line) {
+  var this$1 = this;
+
+  for (;;) {
+    if (this$1.curLineStart != line && this$1.curIndent <= startIndent && this$1.tokenStartsLine()) {
+      if (this$1.tok.type == __acorn.tokTypes.dot && this$1.curIndent == startIndent)
+        --startIndent
+      else
+        return base
+    }
+
+    var maybeAsyncArrow = base.type === "Identifier" && base.name === "async" && !this$1.canInsertSemicolon()
+
+    if (this$1.eat(__acorn.tokTypes.dot)) {
+      var node = this$1.startNodeAt(start)
+      node.object = base
+      if (this$1.curLineStart != line && this$1.curIndent <= startIndent && this$1.tokenStartsLine())
+        node.property = this$1.dummyIdent()
+      else
+        node.property = this$1.parsePropertyAccessor() || this$1.dummyIdent()
+      node.computed = false
+      base = this$1.finishNode(node, "MemberExpression")
+    } else if (this$1.tok.type == __acorn.tokTypes.bracketL) {
+      this$1.pushCx()
+      this$1.next()
+      var node$1 = this$1.startNodeAt(start)
+      node$1.object = base
+      node$1.property = this$1.parseExpression()
+      node$1.computed = true
+      this$1.popCx()
+      this$1.expect(__acorn.tokTypes.bracketR)
+      base = this$1.finishNode(node$1, "MemberExpression")
+    } else if (!noCalls && this$1.tok.type == __acorn.tokTypes.parenL) {
+      var exprList = this$1.parseExprList(__acorn.tokTypes.parenR)
+      if (maybeAsyncArrow && this$1.eat(__acorn.tokTypes.arrow))
+        return this$1.parseArrowExpression(this$1.startNodeAt(start), exprList, true)
+      var node$2 = this$1.startNodeAt(start)
+      node$2.callee = base
+      node$2.arguments = exprList
+      base = this$1.finishNode(node$2, "CallExpression")
+    } else if (this$1.tok.type == __acorn.tokTypes.backQuote) {
+      var node$3 = this$1.startNodeAt(start)
+      node$3.tag = base
+      node$3.quasi = this$1.parseTemplate()
+      base = this$1.finishNode(node$3, "TaggedTemplateExpression")
+    } else {
+      return base
+    }
+  }
+}
+
+lp$2.parseExprAtom = function() {
+  var node
+  switch (this.tok.type) {
+  case __acorn.tokTypes._this:
+  case __acorn.tokTypes._super:
+    var type = this.tok.type === __acorn.tokTypes._this ? "ThisExpression" : "Super"
+    node = this.startNode()
+    this.next()
+    return this.finishNode(node, type)
+
+  case __acorn.tokTypes.name:
+    var start = this.storeCurrentPos()
+    var id = this.parseIdent()
+    var isAsync = false
+    if (id.name === "async" && !this.canInsertSemicolon()) {
+      if (this.eat(__acorn.tokTypes._function))
+        return this.parseFunction(this.startNodeAt(start), false, true)
+      if (this.tok.type === __acorn.tokTypes.name) {
+        id = this.parseIdent()
+        isAsync = true
+      }
+    }
+    return this.eat(__acorn.tokTypes.arrow) ? this.parseArrowExpression(this.startNodeAt(start), [id], isAsync) : id
+
+  case __acorn.tokTypes.regexp:
+    node = this.startNode()
+    var val = this.tok.value
+    node.regex = {pattern: val.pattern, flags: val.flags}
+    node.value = val.value
+    node.raw = this.input.slice(this.tok.start, this.tok.end)
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case __acorn.tokTypes.num: case __acorn.tokTypes.string:
+    node = this.startNode()
+    node.value = this.tok.value
+    node.raw = this.input.slice(this.tok.start, this.tok.end)
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case __acorn.tokTypes._null: case __acorn.tokTypes._true: case __acorn.tokTypes._false:
+    node = this.startNode()
+    node.value = this.tok.type === __acorn.tokTypes._null ? null : this.tok.type === __acorn.tokTypes._true
+    node.raw = this.tok.type.keyword
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case __acorn.tokTypes.parenL:
+    var parenStart = this.storeCurrentPos()
+    this.next()
+    var inner = this.parseExpression()
+    this.expect(__acorn.tokTypes.parenR)
+    if (this.eat(__acorn.tokTypes.arrow)) {
+      // (a,)=>a // SequenceExpression makes dummy in the last hole. Drop the dummy.
+      var params = inner.expressions || [inner]
+      if (params.length && isDummy(params[params.length - 1]))
+        params.pop()
+      return this.parseArrowExpression(this.startNodeAt(parenStart), params)
+    }
+    if (this.options.preserveParens) {
+      var par = this.startNodeAt(parenStart)
+      par.expression = inner
+      inner = this.finishNode(par, "ParenthesizedExpression")
+    }
+    return inner
+
+  case __acorn.tokTypes.bracketL:
+    node = this.startNode()
+    node.elements = this.parseExprList(__acorn.tokTypes.bracketR, true)
+    return this.finishNode(node, "ArrayExpression")
+
+  case __acorn.tokTypes.braceL:
+    return this.parseObj()
+
+  case __acorn.tokTypes._class:
+    return this.parseClass(false)
+
+  case __acorn.tokTypes._function:
+    node = this.startNode()
+    this.next()
+    return this.parseFunction(node, false)
+
+  case __acorn.tokTypes._new:
+    return this.parseNew()
+
+  case __acorn.tokTypes.backQuote:
+    return this.parseTemplate()
+
+  default:
+    return this.dummyIdent()
+  }
+}
+
+lp$2.parseNew = function() {
+  var node = this.startNode(), startIndent = this.curIndent, line = this.curLineStart
+  var meta = this.parseIdent(true)
+  if (this.options.ecmaVersion >= 6 && this.eat(__acorn.tokTypes.dot)) {
+    node.meta = meta
+    node.property = this.parseIdent(true)
+    return this.finishNode(node, "MetaProperty")
+  }
+  var start = this.storeCurrentPos()
+  node.callee = this.parseSubscripts(this.parseExprAtom(), start, true, startIndent, line)
+  if (this.tok.type == __acorn.tokTypes.parenL) {
+    node.arguments = this.parseExprList(__acorn.tokTypes.parenR)
+  } else {
+    node.arguments = []
+  }
+  return this.finishNode(node, "NewExpression")
+}
+
+lp$2.parseTemplateElement = function() {
+  var elem = this.startNode()
+  elem.value = {
+    raw: this.input.slice(this.tok.start, this.tok.end).replace(/\r\n?/g, '\n'),
+    cooked: this.tok.value
+  }
+  this.next()
+  elem.tail = this.tok.type === __acorn.tokTypes.backQuote
+  return this.finishNode(elem, "TemplateElement")
+}
+
+lp$2.parseTemplate = function() {
+  var this$1 = this;
+
+  var node = this.startNode()
+  this.next()
+  node.expressions = []
+  var curElt = this.parseTemplateElement()
+  node.quasis = [curElt]
+  while (!curElt.tail) {
+    this$1.next()
+    node.expressions.push(this$1.parseExpression())
+    if (this$1.expect(__acorn.tokTypes.braceR)) {
+      curElt = this$1.parseTemplateElement()
+    } else {
+      curElt = this$1.startNode()
+      curElt.value = {cooked: '', raw: ''}
+      curElt.tail = true
+      this$1.finishNode(curElt, "TemplateElement")
+    }
+    node.quasis.push(curElt)
+  }
+  this.expect(__acorn.tokTypes.backQuote)
+  return this.finishNode(node, "TemplateLiteral")
+}
+
+lp$2.parseObj = function() {
+  var this$1 = this;
+
+  var node = this.startNode()
+  node.properties = []
+  this.pushCx()
+  var indent = this.curIndent + 1, line = this.curLineStart
+  this.eat(__acorn.tokTypes.braceL)
+  if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart }
+  while (!this.closes(__acorn.tokTypes.braceR, indent, line)) {
+    var prop = this$1.startNode(), isGenerator, isAsync, start
+    if (this$1.options.ecmaVersion >= 6) {
+      start = this$1.storeCurrentPos()
+      prop.method = false
+      prop.shorthand = false
+      isGenerator = this$1.eat(__acorn.tokTypes.star)
+    }
+    this$1.parsePropertyName(prop)
+    if (!prop.computed &&
+        prop.key.type === "Identifier" && prop.key.name === "async" && this$1.tok.type !== __acorn.tokTypes.parenL &&
+        this$1.tok.type !== __acorn.tokTypes.colon && !this$1.canInsertSemicolon()) {
+      this$1.parsePropertyName(prop)
+      isAsync = true
+    } else {
+      isAsync = false
+    }
+    if (isDummy(prop.key)) { if (isDummy(this$1.parseMaybeAssign())) this$1.next(); this$1.eat(__acorn.tokTypes.comma); continue }
+    if (this$1.eat(__acorn.tokTypes.colon)) {
+      prop.kind = "init"
+      prop.value = this$1.parseMaybeAssign()
+    } else if (this$1.options.ecmaVersion >= 6 && (this$1.tok.type === __acorn.tokTypes.parenL || this$1.tok.type === __acorn.tokTypes.braceL)) {
+      prop.kind = "init"
+      prop.method = true
+      prop.value = this$1.parseMethod(isGenerator, isAsync)
+    } else if (this$1.options.ecmaVersion >= 5 && prop.key.type === "Identifier" &&
+               !prop.computed && (prop.key.name === "get" || prop.key.name === "set") &&
+               (this$1.tok.type != __acorn.tokTypes.comma && this$1.tok.type != __acorn.tokTypes.braceR)) {
+      prop.kind = prop.key.name
+      this$1.parsePropertyName(prop)
+      prop.value = this$1.parseMethod(false)
+    } else {
+      prop.kind = "init"
+      if (this$1.options.ecmaVersion >= 6) {
+        if (this$1.eat(__acorn.tokTypes.eq)) {
+          var assign = this$1.startNodeAt(start)
+          assign.operator = "="
+          assign.left = prop.key
+          assign.right = this$1.parseMaybeAssign()
+          prop.value = this$1.finishNode(assign, "AssignmentExpression")
+        } else {
+          prop.value = prop.key
+        }
+      } else {
+        prop.value = this$1.dummyIdent()
+      }
+      prop.shorthand = true
+    }
+    node.properties.push(this$1.finishNode(prop, "Property"))
+    this$1.eat(__acorn.tokTypes.comma)
+  }
+  this.popCx()
+  if (!this.eat(__acorn.tokTypes.braceR)) {
+    // If there is no closing brace, make the node span to the start
+    // of the next token (this is useful for Tern)
+    this.last.end = this.tok.start
+    if (this.options.locations) this.last.loc.end = this.tok.loc.start
+  }
+  return this.finishNode(node, "ObjectExpression")
+}
+
+lp$2.parsePropertyName = function(prop) {
+  if (this.options.ecmaVersion >= 6) {
+    if (this.eat(__acorn.tokTypes.bracketL)) {
+      prop.computed = true
+      prop.key = this.parseExpression()
+      this.expect(__acorn.tokTypes.bracketR)
+      return
+    } else {
+      prop.computed = false
+    }
+  }
+  var key = (this.tok.type === __acorn.tokTypes.num || this.tok.type === __acorn.tokTypes.string) ? this.parseExprAtom() : this.parseIdent()
+  prop.key = key || this.dummyIdent()
+}
+
+lp$2.parsePropertyAccessor = function() {
+  if (this.tok.type === __acorn.tokTypes.name || this.tok.type.keyword) return this.parseIdent()
+}
+
+lp$2.parseIdent = function() {
+  var name = this.tok.type === __acorn.tokTypes.name ? this.tok.value : this.tok.type.keyword
+  if (!name) return this.dummyIdent()
+  var node = this.startNode()
+  this.next()
+  node.name = name
+  return this.finishNode(node, "Identifier")
+}
+
+lp$2.initFunction = function(node) {
+  node.id = null
+  node.params = []
+  if (this.options.ecmaVersion >= 6) {
+    node.generator = false
+    node.expression = false
+  }
+  if (this.options.ecmaVersion >= 8)
+    node.async = false
+}
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+lp$2.toAssignable = function(node, binding) {
+  var this$1 = this;
+
+  if (!node || node.type == "Identifier" || (node.type == "MemberExpression" && !binding)) {
+    // Okay
+  } else if (node.type == "ParenthesizedExpression") {
+    node.expression = this.toAssignable(node.expression, binding)
+  } else if (this.options.ecmaVersion < 6) {
+    return this.dummyIdent()
+  } else if (node.type == "ObjectExpression") {
+    node.type = "ObjectPattern"
+    var props = node.properties
+    for (var i = 0; i < props.length; i++)
+      props[i].value = this$1.toAssignable(props[i].value, binding)
+  } else if (node.type == "ArrayExpression") {
+    node.type = "ArrayPattern"
+    this.toAssignableList(node.elements, binding)
+  } else if (node.type == "SpreadElement") {
+    node.type = "RestElement"
+    node.argument = this.toAssignable(node.argument, binding)
+  } else if (node.type == "AssignmentExpression") {
+    node.type = "AssignmentPattern"
+    delete node.operator
+  } else {
+    return this.dummyIdent()
+  }
+  return node
+}
+
+lp$2.toAssignableList = function(exprList, binding) {
+  var this$1 = this;
+
+  for (var i = 0; i < exprList.length; i++)
+    exprList[i] = this$1.toAssignable(exprList[i], binding)
+  return exprList
+}
+
+lp$2.parseFunctionParams = function(params) {
+  params = this.parseExprList(__acorn.tokTypes.parenR)
+  return this.toAssignableList(params, true)
+}
+
+lp$2.parseMethod = function(isGenerator, isAsync) {
+  var node = this.startNode(), oldInAsync = this.inAsync
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 6)
+    node.generator = !!isGenerator
+  if (this.options.ecmaVersion >= 8)
+    node.async = !!isAsync
+  this.inAsync = node.async
+  node.params = this.parseFunctionParams()
+  node.expression = this.options.ecmaVersion >= 6 && this.tok.type !== __acorn.tokTypes.braceL
+  node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock()
+  this.inAsync = oldInAsync
+  return this.finishNode(node, "FunctionExpression")
+}
+
+lp$2.parseArrowExpression = function(node, params, isAsync) {
+  var oldInAsync = this.inAsync
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 8)
+    node.async = !!isAsync
+  this.inAsync = node.async
+  node.params = this.toAssignableList(params, true)
+  node.expression = this.tok.type !== __acorn.tokTypes.braceL
+  node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock()
+  this.inAsync = oldInAsync
+  return this.finishNode(node, "ArrowFunctionExpression")
+}
+
+lp$2.parseExprList = function(close, allowEmpty) {
+  var this$1 = this;
+
+  this.pushCx()
+  var indent = this.curIndent, line = this.curLineStart, elts = []
+  this.next() // Opening bracket
+  while (!this.closes(close, indent + 1, line)) {
+    if (this$1.eat(__acorn.tokTypes.comma)) {
+      elts.push(allowEmpty ? null : this$1.dummyIdent())
+      continue
+    }
+    var elt = this$1.parseMaybeAssign()
+    if (isDummy(elt)) {
+      if (this$1.closes(close, indent, line)) break
+      this$1.next()
+    } else {
+      elts.push(elt)
+    }
+    this$1.eat(__acorn.tokTypes.comma)
+  }
+  this.popCx()
+  if (!this.eat(close)) {
+    // If there is no closing brace, make the node span to the start
+    // of the next token (this is useful for Tern)
+    this.last.end = this.tok.start
+    if (this.options.locations) this.last.loc.end = this.tok.loc.start
+  }
+  return elts
+}
+
+lp$2.parseAwait = function() {
+  var node = this.startNode()
+  this.next()
+  node.argument = this.parseMaybeUnary()
+  return this.finishNode(node, "AwaitExpression")
+}
+
+// Acorn: Loose parser
+//
+// This module provides an alternative parser (`parse_dammit`) that
+// exposes that same interface as `parse`, but will try to parse
+// anything as JavaScript, repairing syntax error the best it can.
+// There are circumstances in which it will raise an error and give
+// up, but they are very rare. The resulting AST will be a mostly
+// valid JavaScript AST (as per the [Mozilla parser API][api], except
+// that:
+//
+// - Return outside functions is allowed
+//
+// - Label consistency (no conflicts, break only to existing labels)
+//   is not enforced.
+//
+// - Bogus Identifier nodes with a name of `"✖"` are inserted whenever
+//   the parser got too confused to return anything meaningful.
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+//
+// The expected use for this is to *first* try `acorn.parse`, and only
+// if that fails switch to `parse_dammit`. The loose parser might
+// parse badly indented code incorrectly, so **don't** use it as
+// your default parser.
+//
+// Quite a lot of acorn.js is duplicated here. The alternative was to
+// add a *lot* of extra cruft to that file, making it less readable
+// and slower. Copying and editing the code allowed me to make
+// invasive changes and simplifications without creating a complicated
+// tangle.
+
+__acorn.defaultOptions.tabSize = 4
+
+function parse_dammit(input, options) {
+  var p = new LooseParser(input, options)
+  p.next()
+  return p.parseTopLevel()
+}
+
+__acorn.addLooseExports(parse_dammit, LooseParser, pluginsLoose)
+
+exports.parse_dammit = parse_dammit;
+exports.LooseParser = LooseParser;
+exports.pluginsLoose = pluginsLoose;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));

node_modules/acorn/dist/walk.es.js

@@ -0,0 +1,342 @@
+// AST walker module for Mozilla Parser API compatible trees
+
+// A simple walk is one where you simply specify callbacks to be
+// called on specific nodes. The last two arguments are optional. A
+// simple use would be
+//
+//     walk.simple(myTree, {
+//         Expression: function(node) { ... }
+//     });
+//
+// to do something with all expressions. All Parser API node types
+// can be used to identify node types, as well as Expression,
+// Statement, and ScopeBody, which denote categories of nodes.
+//
+// The base argument can be used to pass a custom (recursive)
+// walker, and state can be used to give this walked an initial
+// state.
+
+function simple(node, visitors, base, state, override) {
+  if (!base) base = exports.base
+  ;(function c(node, st, override) {
+    var type = override || node.type, found = visitors[type]
+    base[type](node, st, c)
+    if (found) found(node, st)
+  })(node, state, override)
+}
+
+// An ancestor walk keeps an array of ancestor nodes (including the
+// current node) and passes them to the callback as third parameter
+// (and also as state parameter when no other state is present).
+function ancestor(node, visitors, base, state) {
+  if (!base) base = exports.base
+  var ancestors = []
+  ;(function c(node, st, override) {
+    var type = override || node.type, found = visitors[type]
+    var isNew = node != ancestors[ancestors.length - 1]
+    if (isNew) ancestors.push(node)
+    base[type](node, st, c)
+    if (found) found(node, st || ancestors, ancestors)
+    if (isNew) ancestors.pop()
+  })(node, state)
+}
+
+// A recursive walk is one where your functions override the default
+// walkers. They can modify and replace the state parameter that's
+// threaded through the walk, and can opt how and whether to walk
+// their child nodes (by calling their third argument on these
+// nodes).
+function recursive(node, state, funcs, base, override) {
+  var visitor = funcs ? exports.make(funcs, base) : base
+  ;(function c(node, st, override) {
+    visitor[override || node.type](node, st, c)
+  })(node, state, override)
+}
+
+function makeTest(test) {
+  if (typeof test == "string")
+    return function (type) { return type == test; }
+  else if (!test)
+    return function () { return true; }
+  else
+    return test
+}
+
+var Found = function Found(node, state) { this.node = node; this.state = state };
+
+// Find a node with a given start, end, and type (all are optional,
+// null can be used as wildcard). Returns a {node, state} object, or
+// undefined when it doesn't find a matching node.
+function findNodeAt(node, start, end, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  try {
+    ;(function c(node, st, override) {
+      var type = override || node.type
+      if ((start == null || node.start <= start) &&
+          (end == null || node.end >= end))
+        base[type](node, st, c)
+      if ((start == null || node.start == start) &&
+          (end == null || node.end == end) &&
+          test(type, node))
+        throw new Found(node, st)
+    })(node, state)
+  } catch (e) {
+    if (e instanceof Found) return e
+    throw e
+  }
+}
+
+// Find the innermost node of a given type that contains the given
+// position. Interface similar to findNodeAt.
+function findNodeAround(node, pos, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  try {
+    ;(function c(node, st, override) {
+      var type = override || node.type
+      if (node.start > pos || node.end < pos) return
+      base[type](node, st, c)
+      if (test(type, node)) throw new Found(node, st)
+    })(node, state)
+  } catch (e) {
+    if (e instanceof Found) return e
+    throw e
+  }
+}
+
+// Find the outermost matching node after a given position.
+function findNodeAfter(node, pos, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  try {
+    ;(function c(node, st, override) {
+      if (node.end < pos) return
+      var type = override || node.type
+      if (node.start >= pos && test(type, node)) throw new Found(node, st)
+      base[type](node, st, c)
+    })(node, state)
+  } catch (e) {
+    if (e instanceof Found) return e
+    throw e
+  }
+}
+
+// Find the outermost matching node before a given position.
+function findNodeBefore(node, pos, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  var max
+  ;(function c(node, st, override) {
+    if (node.start > pos) return
+    var type = override || node.type
+    if (node.end <= pos && (!max || max.node.end < node.end) && test(type, node))
+      max = new Found(node, st)
+    base[type](node, st, c)
+  })(node, state)
+  return max
+}
+
+// Fallback to an Object.create polyfill for older environments.
+var create = Object.create || function(proto) {
+  function Ctor() {}
+  Ctor.prototype = proto
+  return new Ctor
+}
+
+// Used to create a custom walker. Will fill in all missing node
+// type properties with the defaults.
+function make(funcs, base) {
+  if (!base) base = exports.base
+  var visitor = create(base)
+  for (var type in funcs) visitor[type] = funcs[type]
+  return visitor
+}
+
+function skipThrough(node, st, c) { c(node, st) }
+function ignore(_node, _st, _c) {}
+
+// Node walkers.
+
+var base = {}
+
+base.Program = base.BlockStatement = function (node, st, c) {
+  for (var i = 0; i < node.body.length; ++i)
+    c(node.body[i], st, "Statement")
+}
+base.Statement = skipThrough
+base.EmptyStatement = ignore
+base.ExpressionStatement = base.ParenthesizedExpression =
+  function (node, st, c) { return c(node.expression, st, "Expression"); }
+base.IfStatement = function (node, st, c) {
+  c(node.test, st, "Expression")
+  c(node.consequent, st, "Statement")
+  if (node.alternate) c(node.alternate, st, "Statement")
+}
+base.LabeledStatement = function (node, st, c) { return c(node.body, st, "Statement"); }
+base.BreakStatement = base.ContinueStatement = ignore
+base.WithStatement = function (node, st, c) {
+  c(node.object, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.SwitchStatement = function (node, st, c) {
+  c(node.discriminant, st, "Expression")
+  for (var i = 0; i < node.cases.length; ++i) {
+    var cs = node.cases[i]
+    if (cs.test) c(cs.test, st, "Expression")
+    for (var j = 0; j < cs.consequent.length; ++j)
+      c(cs.consequent[j], st, "Statement")
+  }
+}
+base.ReturnStatement = base.YieldExpression = base.AwaitExpression = function (node, st, c) {
+  if (node.argument) c(node.argument, st, "Expression")
+}
+base.ThrowStatement = base.SpreadElement =
+  function (node, st, c) { return c(node.argument, st, "Expression"); }
+base.TryStatement = function (node, st, c) {
+  c(node.block, st, "Statement")
+  if (node.handler) c(node.handler, st)
+  if (node.finalizer) c(node.finalizer, st, "Statement")
+}
+base.CatchClause = function (node, st, c) {
+  c(node.param, st, "Pattern")
+  c(node.body, st, "ScopeBody")
+}
+base.WhileStatement = base.DoWhileStatement = function (node, st, c) {
+  c(node.test, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.ForStatement = function (node, st, c) {
+  if (node.init) c(node.init, st, "ForInit")
+  if (node.test) c(node.test, st, "Expression")
+  if (node.update) c(node.update, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.ForInStatement = base.ForOfStatement = function (node, st, c) {
+  c(node.left, st, "ForInit")
+  c(node.right, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.ForInit = function (node, st, c) {
+  if (node.type == "VariableDeclaration") c(node, st)
+  else c(node, st, "Expression")
+}
+base.DebuggerStatement = ignore
+
+base.FunctionDeclaration = function (node, st, c) { return c(node, st, "Function"); }
+base.VariableDeclaration = function (node, st, c) {
+  for (var i = 0; i < node.declarations.length; ++i)
+    c(node.declarations[i], st)
+}
+base.VariableDeclarator = function (node, st, c) {
+  c(node.id, st, "Pattern")
+  if (node.init) c(node.init, st, "Expression")
+}
+
+base.Function = function (node, st, c) {
+  if (node.id) c(node.id, st, "Pattern")
+  for (var i = 0; i < node.params.length; i++)
+    c(node.params[i], st, "Pattern")
+  c(node.body, st, node.expression ? "ScopeExpression" : "ScopeBody")
+}
+// FIXME drop these node types in next major version
+// (They are awkward, and in ES6 every block can be a scope.)
+base.ScopeBody = function (node, st, c) { return c(node, st, "Statement"); }
+base.ScopeExpression = function (node, st, c) { return c(node, st, "Expression"); }
+
+base.Pattern = function (node, st, c) {
+  if (node.type == "Identifier")
+    c(node, st, "VariablePattern")
+  else if (node.type == "MemberExpression")
+    c(node, st, "MemberPattern")
+  else
+    c(node, st)
+}
+base.VariablePattern = ignore
+base.MemberPattern = skipThrough
+base.RestElement = function (node, st, c) { return c(node.argument, st, "Pattern"); }
+base.ArrayPattern =  function (node, st, c) {
+  for (var i = 0; i < node.elements.length; ++i) {
+    var elt = node.elements[i]
+    if (elt) c(elt, st, "Pattern")
+  }
+}
+base.ObjectPattern = function (node, st, c) {
+  for (var i = 0; i < node.properties.length; ++i)
+    c(node.properties[i].value, st, "Pattern")
+}
+
+base.Expression = skipThrough
+base.ThisExpression = base.Super = base.MetaProperty = ignore
+base.ArrayExpression = function (node, st, c) {
+  for (var i = 0; i < node.elements.length; ++i) {
+    var elt = node.elements[i]
+    if (elt) c(elt, st, "Expression")
+  }
+}
+base.ObjectExpression = function (node, st, c) {
+  for (var i = 0; i < node.properties.length; ++i)
+    c(node.properties[i], st)
+}
+base.FunctionExpression = base.ArrowFunctionExpression = base.FunctionDeclaration
+base.SequenceExpression = base.TemplateLiteral = function (node, st, c) {
+  for (var i = 0; i < node.expressions.length; ++i)
+    c(node.expressions[i], st, "Expression")
+}
+base.UnaryExpression = base.UpdateExpression = function (node, st, c) {
+  c(node.argument, st, "Expression")
+}
+base.BinaryExpression = base.LogicalExpression = function (node, st, c) {
+  c(node.left, st, "Expression")
+  c(node.right, st, "Expression")
+}
+base.AssignmentExpression = base.AssignmentPattern = function (node, st, c) {
+  c(node.left, st, "Pattern")
+  c(node.right, st, "Expression")
+}
+base.ConditionalExpression = function (node, st, c) {
+  c(node.test, st, "Expression")
+  c(node.consequent, st, "Expression")
+  c(node.alternate, st, "Expression")
+}
+base.NewExpression = base.CallExpression = function (node, st, c) {
+  c(node.callee, st, "Expression")
+  if (node.arguments) for (var i = 0; i < node.arguments.length; ++i)
+    c(node.arguments[i], st, "Expression")
+}
+base.MemberExpression = function (node, st, c) {
+  c(node.object, st, "Expression")
+  if (node.computed) c(node.property, st, "Expression")
+}
+base.ExportNamedDeclaration = base.ExportDefaultDeclaration = function (node, st, c) {
+  if (node.declaration)
+    c(node.declaration, st, node.type == "ExportNamedDeclaration" || node.declaration.id ? "Statement" : "Expression")
+  if (node.source) c(node.source, st, "Expression")
+}
+base.ExportAllDeclaration = function (node, st, c) {
+  c(node.source, st, "Expression")
+}
+base.ImportDeclaration = function (node, st, c) {
+  for (var i = 0; i < node.specifiers.length; i++)
+    c(node.specifiers[i], st)
+  c(node.source, st, "Expression")
+}
+base.ImportSpecifier = base.ImportDefaultSpecifier = base.ImportNamespaceSpecifier = base.Identifier = base.Literal = ignore
+
+base.TaggedTemplateExpression = function (node, st, c) {
+  c(node.tag, st, "Expression")
+  c(node.quasi, st)
+}
+base.ClassDeclaration = base.ClassExpression = function (node, st, c) { return c(node, st, "Class"); }
+base.Class = function (node, st, c) {
+  if (node.id) c(node.id, st, "Pattern")
+  if (node.superClass) c(node.superClass, st, "Expression")
+  for (var i = 0; i < node.body.body.length; i++)
+    c(node.body.body[i], st)
+}
+base.MethodDefinition = base.Property = function (node, st, c) {
+  if (node.computed) c(node.key, st, "Expression")
+  c(node.value, st, "Expression")
+}
+
+export { simple, ancestor, recursive, findNodeAt, findNodeAround, findNodeAfter, findNodeBefore, make, base };

node_modules/acorn/dist/walk.js

@@ -0,0 +1,360 @@
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+  typeof define === 'function' && define.amd ? define(['exports'], factory) :
+  (factory((global.acorn = global.acorn || {}, global.acorn.walk = global.acorn.walk || {})));
+}(this, (function (exports) { 'use strict';
+
+// AST walker module for Mozilla Parser API compatible trees
+
+// A simple walk is one where you simply specify callbacks to be
+// called on specific nodes. The last two arguments are optional. A
+// simple use would be
+//
+//     walk.simple(myTree, {
+//         Expression: function(node) { ... }
+//     });
+//
+// to do something with all expressions. All Parser API node types
+// can be used to identify node types, as well as Expression,
+// Statement, and ScopeBody, which denote categories of nodes.
+//
+// The base argument can be used to pass a custom (recursive)
+// walker, and state can be used to give this walked an initial
+// state.
+
+function simple(node, visitors, base, state, override) {
+  if (!base) base = exports.base
+  ;(function c(node, st, override) {
+    var type = override || node.type, found = visitors[type]
+    base[type](node, st, c)
+    if (found) found(node, st)
+  })(node, state, override)
+}
+
+// An ancestor walk keeps an array of ancestor nodes (including the
+// current node) and passes them to the callback as third parameter
+// (and also as state parameter when no other state is present).
+function ancestor(node, visitors, base, state) {
+  if (!base) base = exports.base
+  var ancestors = []
+  ;(function c(node, st, override) {
+    var type = override || node.type, found = visitors[type]
+    var isNew = node != ancestors[ancestors.length - 1]
+    if (isNew) ancestors.push(node)
+    base[type](node, st, c)
+    if (found) found(node, st || ancestors, ancestors)
+    if (isNew) ancestors.pop()
+  })(node, state)
+}
+
+// A recursive walk is one where your functions override the default
+// walkers. They can modify and replace the state parameter that's
+// threaded through the walk, and can opt how and whether to walk
+// their child nodes (by calling their third argument on these
+// nodes).
+function recursive(node, state, funcs, base, override) {
+  var visitor = funcs ? exports.make(funcs, base) : base
+  ;(function c(node, st, override) {
+    visitor[override || node.type](node, st, c)
+  })(node, state, override)
+}
+
+function makeTest(test) {
+  if (typeof test == "string")
+    return function (type) { return type == test; }
+  else if (!test)
+    return function () { return true; }
+  else
+    return test
+}
+
+var Found = function Found(node, state) { this.node = node; this.state = state };
+
+// Find a node with a given start, end, and type (all are optional,
+// null can be used as wildcard). Returns a {node, state} object, or
+// undefined when it doesn't find a matching node.
+function findNodeAt(node, start, end, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  try {
+    ;(function c(node, st, override) {
+      var type = override || node.type
+      if ((start == null || node.start <= start) &&
+          (end == null || node.end >= end))
+        base[type](node, st, c)
+      if ((start == null || node.start == start) &&
+          (end == null || node.end == end) &&
+          test(type, node))
+        throw new Found(node, st)
+    })(node, state)
+  } catch (e) {
+    if (e instanceof Found) return e
+    throw e
+  }
+}
+
+// Find the innermost node of a given type that contains the given
+// position. Interface similar to findNodeAt.
+function findNodeAround(node, pos, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  try {
+    ;(function c(node, st, override) {
+      var type = override || node.type
+      if (node.start > pos || node.end < pos) return
+      base[type](node, st, c)
+      if (test(type, node)) throw new Found(node, st)
+    })(node, state)
+  } catch (e) {
+    if (e instanceof Found) return e
+    throw e
+  }
+}
+
+// Find the outermost matching node after a given position.
+function findNodeAfter(node, pos, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  try {
+    ;(function c(node, st, override) {
+      if (node.end < pos) return
+      var type = override || node.type
+      if (node.start >= pos && test(type, node)) throw new Found(node, st)
+      base[type](node, st, c)
+    })(node, state)
+  } catch (e) {
+    if (e instanceof Found) return e
+    throw e
+  }
+}
+
+// Find the outermost matching node before a given position.
+function findNodeBefore(node, pos, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  var max
+  ;(function c(node, st, override) {
+    if (node.start > pos) return
+    var type = override || node.type
+    if (node.end <= pos && (!max || max.node.end < node.end) && test(type, node))
+      max = new Found(node, st)
+    base[type](node, st, c)
+  })(node, state)
+  return max
+}
+
+// Fallback to an Object.create polyfill for older environments.
+var create = Object.create || function(proto) {
+  function Ctor() {}
+  Ctor.prototype = proto
+  return new Ctor
+}
+
+// Used to create a custom walker. Will fill in all missing node
+// type properties with the defaults.
+function make(funcs, base) {
+  if (!base) base = exports.base
+  var visitor = create(base)
+  for (var type in funcs) visitor[type] = funcs[type]
+  return visitor
+}
+
+function skipThrough(node, st, c) { c(node, st) }
+function ignore(_node, _st, _c) {}
+
+// Node walkers.
+
+var base = {}
+
+base.Program = base.BlockStatement = function (node, st, c) {
+  for (var i = 0; i < node.body.length; ++i)
+    c(node.body[i], st, "Statement")
+}
+base.Statement = skipThrough
+base.EmptyStatement = ignore
+base.ExpressionStatement = base.ParenthesizedExpression =
+  function (node, st, c) { return c(node.expression, st, "Expression"); }
+base.IfStatement = function (node, st, c) {
+  c(node.test, st, "Expression")
+  c(node.consequent, st, "Statement")
+  if (node.alternate) c(node.alternate, st, "Statement")
+}
+base.LabeledStatement = function (node, st, c) { return c(node.body, st, "Statement"); }
+base.BreakStatement = base.ContinueStatement = ignore
+base.WithStatement = function (node, st, c) {
+  c(node.object, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.SwitchStatement = function (node, st, c) {
+  c(node.discriminant, st, "Expression")
+  for (var i = 0; i < node.cases.length; ++i) {
+    var cs = node.cases[i]
+    if (cs.test) c(cs.test, st, "Expression")
+    for (var j = 0; j < cs.consequent.length; ++j)
+      c(cs.consequent[j], st, "Statement")
+  }
+}
+base.ReturnStatement = base.YieldExpression = base.AwaitExpression = function (node, st, c) {
+  if (node.argument) c(node.argument, st, "Expression")
+}
+base.ThrowStatement = base.SpreadElement =
+  function (node, st, c) { return c(node.argument, st, "Expression"); }
+base.TryStatement = function (node, st, c) {
+  c(node.block, st, "Statement")
+  if (node.handler) c(node.handler, st)
+  if (node.finalizer) c(node.finalizer, st, "Statement")
+}
+base.CatchClause = function (node, st, c) {
+  c(node.param, st, "Pattern")
+  c(node.body, st, "ScopeBody")
+}
+base.WhileStatement = base.DoWhileStatement = function (node, st, c) {
+  c(node.test, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.ForStatement = function (node, st, c) {
+  if (node.init) c(node.init, st, "ForInit")
+  if (node.test) c(node.test, st, "Expression")
+  if (node.update) c(node.update, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.ForInStatement = base.ForOfStatement = function (node, st, c) {
+  c(node.left, st, "ForInit")
+  c(node.right, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.ForInit = function (node, st, c) {
+  if (node.type == "VariableDeclaration") c(node, st)
+  else c(node, st, "Expression")
+}
+base.DebuggerStatement = ignore
+
+base.FunctionDeclaration = function (node, st, c) { return c(node, st, "Function"); }
+base.VariableDeclaration = function (node, st, c) {
+  for (var i = 0; i < node.declarations.length; ++i)
+    c(node.declarations[i], st)
+}
+base.VariableDeclarator = function (node, st, c) {
+  c(node.id, st, "Pattern")
+  if (node.init) c(node.init, st, "Expression")
+}
+
+base.Function = function (node, st, c) {
+  if (node.id) c(node.id, st, "Pattern")
+  for (var i = 0; i < node.params.length; i++)
+    c(node.params[i], st, "Pattern")
+  c(node.body, st, node.expression ? "ScopeExpression" : "ScopeBody")
+}
+// FIXME drop these node types in next major version
+// (They are awkward, and in ES6 every block can be a scope.)
+base.ScopeBody = function (node, st, c) { return c(node, st, "Statement"); }
+base.ScopeExpression = function (node, st, c) { return c(node, st, "Expression"); }
+
+base.Pattern = function (node, st, c) {
+  if (node.type == "Identifier")
+    c(node, st, "VariablePattern")
+  else if (node.type == "MemberExpression")
+    c(node, st, "MemberPattern")
+  else
+    c(node, st)
+}
+base.VariablePattern = ignore
+base.MemberPattern = skipThrough
+base.RestElement = function (node, st, c) { return c(node.argument, st, "Pattern"); }
+base.ArrayPattern =  function (node, st, c) {
+  for (var i = 0; i < node.elements.length; ++i) {
+    var elt = node.elements[i]
+    if (elt) c(elt, st, "Pattern")
+  }
+}
+base.ObjectPattern = function (node, st, c) {
+  for (var i = 0; i < node.properties.length; ++i)
+    c(node.properties[i].value, st, "Pattern")
+}
+
+base.Expression = skipThrough
+base.ThisExpression = base.Super = base.MetaProperty = ignore
+base.ArrayExpression = function (node, st, c) {
+  for (var i = 0; i < node.elements.length; ++i) {
+    var elt = node.elements[i]
+    if (elt) c(elt, st, "Expression")
+  }
+}
+base.ObjectExpression = function (node, st, c) {
+  for (var i = 0; i < node.properties.length; ++i)
+    c(node.properties[i], st)
+}
+base.FunctionExpression = base.ArrowFunctionExpression = base.FunctionDeclaration
+base.SequenceExpression = base.TemplateLiteral = function (node, st, c) {
+  for (var i = 0; i < node.expressions.length; ++i)
+    c(node.expressions[i], st, "Expression")
+}
+base.UnaryExpression = base.UpdateExpression = function (node, st, c) {
+  c(node.argument, st, "Expression")
+}
+base.BinaryExpression = base.LogicalExpression = function (node, st, c) {
+  c(node.left, st, "Expression")
+  c(node.right, st, "Expression")
+}
+base.AssignmentExpression = base.AssignmentPattern = function (node, st, c) {
+  c(node.left, st, "Pattern")
+  c(node.right, st, "Expression")
+}
+base.ConditionalExpression = function (node, st, c) {
+  c(node.test, st, "Expression")
+  c(node.consequent, st, "Expression")
+  c(node.alternate, st, "Expression")
+}
+base.NewExpression = base.CallExpression = function (node, st, c) {
+  c(node.callee, st, "Expression")
+  if (node.arguments) for (var i = 0; i < node.arguments.length; ++i)
+    c(node.arguments[i], st, "Expression")
+}
+base.MemberExpression = function (node, st, c) {
+  c(node.object, st, "Expression")
+  if (node.computed) c(node.property, st, "Expression")
+}
+base.ExportNamedDeclaration = base.ExportDefaultDeclaration = function (node, st, c) {
+  if (node.declaration)
+    c(node.declaration, st, node.type == "ExportNamedDeclaration" || node.declaration.id ? "Statement" : "Expression")
+  if (node.source) c(node.source, st, "Expression")
+}
+base.ExportAllDeclaration = function (node, st, c) {
+  c(node.source, st, "Expression")
+}
+base.ImportDeclaration = function (node, st, c) {
+  for (var i = 0; i < node.specifiers.length; i++)
+    c(node.specifiers[i], st)
+  c(node.source, st, "Expression")
+}
+base.ImportSpecifier = base.ImportDefaultSpecifier = base.ImportNamespaceSpecifier = base.Identifier = base.Literal = ignore
+
+base.TaggedTemplateExpression = function (node, st, c) {
+  c(node.tag, st, "Expression")
+  c(node.quasi, st)
+}
+base.ClassDeclaration = base.ClassExpression = function (node, st, c) { return c(node, st, "Class"); }
+base.Class = function (node, st, c) {
+  if (node.id) c(node.id, st, "Pattern")
+  if (node.superClass) c(node.superClass, st, "Expression")
+  for (var i = 0; i < node.body.body.length; i++)
+    c(node.body.body[i], st)
+}
+base.MethodDefinition = base.Property = function (node, st, c) {
+  if (node.computed) c(node.key, st, "Expression")
+  c(node.value, st, "Expression")
+}
+
+exports.simple = simple;
+exports.ancestor = ancestor;
+exports.recursive = recursive;
+exports.findNodeAt = findNodeAt;
+exports.findNodeAround = findNodeAround;
+exports.findNodeAfter = findNodeAfter;
+exports.findNodeBefore = findNodeBefore;
+exports.make = make;
+exports.base = base;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));

node_modules/acorn/package.json

@@ -0,0 +1,46 @@
+{
+  "name": "acorn",
+  "description": "ECMAScript parser",
+  "homepage": "https://github.com/ternjs/acorn",
+  "main": "dist/acorn.js",
+  "jsnext:main": "dist/acorn.es.js",
+  "version": "4.0.13",
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "maintainers": [
+    {
+      "name": "Marijn Haverbeke",
+      "email": "marijnh@gmail.com",
+      "web": "http://marijnhaverbeke.nl"
+    },
+    {
+      "name": "Ingvar Stepanyan",
+      "email": "me@rreverser.com",
+      "web": "http://rreverser.com/"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/ternjs/acorn.git"
+  },
+  "license": "MIT",
+  "scripts": {
+    "prepublish": "npm test",
+    "test": "node test/run.js",
+    "pretest": "npm run build",
+    "build": "npm run build:main && npm run build:walk && npm run build:loose && npm run build:bin",
+    "build:main": "rollup -c rollup/config.main.js",
+    "build:walk": "rollup -c rollup/config.walk.js",
+    "build:loose": "rollup -c rollup/config.loose.js",
+    "build:bin": "rollup -c rollup/config.bin.js"
+  },
+  "bin": {
+    "acorn": "./bin/acorn"
+  },
+  "devDependencies": {
+    "rollup": "^0.34.1",
+    "rollup-plugin-buble": "^0.11.0",
+    "unicode-9.0.0": "^0.7.0"
+  }
+}

node_modules/acorn/src/bin/acorn.js

@@ -0,0 +1,60 @@
+import {basename} from "path"
+import {readFileSync as readFile} from "fs"
+import * as acorn from "acorn"
+
+let infile, forceFile, silent = false, compact = false, tokenize = false
+const options = {}
+
+function help(status) {
+  const print = (status == 0) ? console.log : console.error
+  print("usage: " + basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|...|--ecma2015|--ecma2016|...]")
+  print("        [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]")
+  process.exit(status)
+}
+
+for (let i = 2; i < process.argv.length; ++i) {
+  const arg = process.argv[i]
+  if ((arg == "-" || arg[0] != "-") && !infile) infile = arg
+  else if (arg == "--" && !infile && i + 2 == process.argv.length) forceFile = infile = process.argv[++i]
+  else if (arg == "--locations") options.locations = true
+  else if (arg == "--allow-hash-bang") options.allowHashBang = true
+  else if (arg == "--silent") silent = true
+  else if (arg == "--compact") compact = true
+  else if (arg == "--help") help(0)
+  else if (arg == "--tokenize") tokenize = true
+  else if (arg == "--module") options.sourceType = 'module'
+  else {
+    let match = arg.match(/^--ecma(\d+)$/)
+    if (match)
+      options.ecmaVersion = +match[1]
+    else
+      help(1)
+  }
+}
+
+function run(code) {
+  let result
+  if (!tokenize) {
+    try { result = acorn.parse(code, options) }
+    catch(e) { console.error(e.message); process.exit(1) }
+  } else {
+    result = []
+    let tokenizer = acorn.tokenizer(code, options), token
+    while (true) {
+      try { token = tokenizer.getToken() }
+      catch(e) { console.error(e.message); process.exit(1) }
+      result.push(token)
+      if (token.type == acorn.tokTypes.eof) break
+    }
+  }
+  if (!silent) console.log(JSON.stringify(result, null, compact ? null : 2))
+}
+
+if (forceFile || infile && infile != "-") {
+  run(readFile(infile, "utf8"))
+} else {
+  let code = ""
+  process.stdin.resume()
+  process.stdin.on("data", chunk => code += chunk)
+  process.stdin.on("end", () => run(code))
+}

node_modules/acorn/src/expression.js

@@ -0,0 +1,819 @@
+// A recursive descent parser operates by defining functions for all
+// syntactic elements, and recursively calling those, each function
+// advancing the input stream and returning an AST node. Precedence
+// of constructs (for example, the fact that `!x[1]` means `!(x[1])`
+// instead of `(!x)[1]` is handled by the fact that the parser
+// function that parses unary prefix operators is called first, and
+// in turn calls the function that parses `[]` subscripts — that
+// way, it'll receive the node for `x[1]` already parsed, and wraps
+// *that* in the unary operator node.
+//
+// Acorn uses an [operator precedence parser][opp] to handle binary
+// operator precedence, because it is much more compact than using
+// the technique outlined above, which uses different, nesting
+// functions to specify precedence, for all of the ten binary
+// precedence levels that JavaScript defines.
+//
+// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser
+
+import {types as tt} from "./tokentype"
+import {Parser} from "./state"
+import {DestructuringErrors} from "./parseutil"
+
+const pp = Parser.prototype
+
+// Check if property name clashes with already added.
+// Object/class getters and setters are not allowed to clash —
+// either with each other or with an init property — and in
+// strict mode, init properties are also not allowed to be repeated.
+
+pp.checkPropClash = function(prop, propHash) {
+  if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
+    return
+  let {key} = prop, name
+  switch (key.type) {
+  case "Identifier": name = key.name; break
+  case "Literal": name = String(key.value); break
+  default: return
+  }
+  let {kind} = prop
+  if (this.options.ecmaVersion >= 6) {
+    if (name === "__proto__" && kind === "init") {
+      if (propHash.proto) this.raiseRecoverable(key.start, "Redefinition of __proto__ property")
+      propHash.proto = true
+    }
+    return
+  }
+  name = "$" + name
+  let other = propHash[name]
+  if (other) {
+    let isGetSet = kind !== "init"
+    if ((this.strict || isGetSet) && other[kind] || !(isGetSet ^ other.init))
+      this.raiseRecoverable(key.start, "Redefinition of property")
+  } else {
+    other = propHash[name] = {
+      init: false,
+      get: false,
+      set: false
+    }
+  }
+  other[kind] = true
+}
+
+// ### Expression parsing
+
+// These nest, from the most general expression type at the top to
+// 'atomic', nondivisible expression types at the bottom. Most of
+// the functions will simply let the function(s) below them parse,
+// and, *if* the syntactic construct they handle is present, wrap
+// the AST node that the inner parser gave them in another node.
+
+// Parse a full expression. The optional arguments are used to
+// forbid the `in` operator (in for loops initalization expressions)
+// and provide reference for storing '=' operator inside shorthand
+// property assignment in contexts where both object expression
+// and object pattern might appear (so it's possible to raise
+// delayed syntax error at correct position).
+
+pp.parseExpression = function(noIn, refDestructuringErrors) {
+  let startPos = this.start, startLoc = this.startLoc
+  let expr = this.parseMaybeAssign(noIn, refDestructuringErrors)
+  if (this.type === tt.comma) {
+    let node = this.startNodeAt(startPos, startLoc)
+    node.expressions = [expr]
+    while (this.eat(tt.comma)) node.expressions.push(this.parseMaybeAssign(noIn, refDestructuringErrors))
+    return this.finishNode(node, "SequenceExpression")
+  }
+  return expr
+}
+
+// Parse an assignment expression. This includes applications of
+// operators like `+=`.
+
+pp.parseMaybeAssign = function(noIn, refDestructuringErrors, afterLeftParse) {
+  if (this.inGenerator && this.isContextual("yield")) return this.parseYield()
+
+  let ownDestructuringErrors = false, oldParenAssign = -1
+  if (refDestructuringErrors) {
+    oldParenAssign = refDestructuringErrors.parenthesizedAssign
+    refDestructuringErrors.parenthesizedAssign = -1
+  } else {
+    refDestructuringErrors = new DestructuringErrors
+    ownDestructuringErrors = true
+  }
+
+  let startPos = this.start, startLoc = this.startLoc
+  if (this.type == tt.parenL || this.type == tt.name)
+    this.potentialArrowAt = this.start
+  let left = this.parseMaybeConditional(noIn, refDestructuringErrors)
+  if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc)
+  if (this.type.isAssign) {
+    this.checkPatternErrors(refDestructuringErrors, true)
+    if (!ownDestructuringErrors) DestructuringErrors.call(refDestructuringErrors)
+    let node = this.startNodeAt(startPos, startLoc)
+    node.operator = this.value
+    node.left = this.type === tt.eq ? this.toAssignable(left) : left
+    refDestructuringErrors.shorthandAssign = -1 // reset because shorthand default was used correctly
+    this.checkLVal(left)
+    this.next()
+    node.right = this.parseMaybeAssign(noIn)
+    return this.finishNode(node, "AssignmentExpression")
+  } else {
+    if (ownDestructuringErrors) this.checkExpressionErrors(refDestructuringErrors, true)
+  }
+  if (oldParenAssign > -1) refDestructuringErrors.parenthesizedAssign = oldParenAssign
+  return left
+}
+
+// Parse a ternary conditional (`?:`) operator.
+
+pp.parseMaybeConditional = function(noIn, refDestructuringErrors) {
+  let startPos = this.start, startLoc = this.startLoc
+  let expr = this.parseExprOps(noIn, refDestructuringErrors)
+  if (this.checkExpressionErrors(refDestructuringErrors)) return expr
+  if (this.eat(tt.question)) {
+    let node = this.startNodeAt(startPos, startLoc)
+    node.test = expr
+    node.consequent = this.parseMaybeAssign()
+    this.expect(tt.colon)
+    node.alternate = this.parseMaybeAssign(noIn)
+    return this.finishNode(node, "ConditionalExpression")
+  }
+  return expr
+}
+
+// Start the precedence parser.
+
+pp.parseExprOps = function(noIn, refDestructuringErrors) {
+  let startPos = this.start, startLoc = this.startLoc
+  let expr = this.parseMaybeUnary(refDestructuringErrors, false)
+  if (this.checkExpressionErrors(refDestructuringErrors)) return expr
+  return this.parseExprOp(expr, startPos, startLoc, -1, noIn)
+}
+
+// Parse binary operators with the operator precedence parsing
+// algorithm. `left` is the left-hand side of the operator.
+// `minPrec` provides context that allows the function to stop and
+// defer further parser to one of its callers when it encounters an
+// operator that has a lower precedence than the set it is parsing.
+
+pp.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, noIn) {
+  let prec = this.type.binop
+  if (prec != null && (!noIn || this.type !== tt._in)) {
+    if (prec > minPrec) {
+      let logical = this.type === tt.logicalOR || this.type === tt.logicalAND
+      let op = this.value
+      this.next()
+      let startPos = this.start, startLoc = this.startLoc
+      let right = this.parseExprOp(this.parseMaybeUnary(null, false), startPos, startLoc, prec, noIn)
+      let node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical)
+      return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn)
+    }
+  }
+  return left
+}
+
+pp.buildBinary = function(startPos, startLoc, left, right, op, logical) {
+  let node = this.startNodeAt(startPos, startLoc)
+  node.left = left
+  node.operator = op
+  node.right = right
+  return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression")
+}
+
+// Parse unary operators, both prefix and postfix.
+
+pp.parseMaybeUnary = function(refDestructuringErrors, sawUnary) {
+  let startPos = this.start, startLoc = this.startLoc, expr
+  if (this.inAsync && this.isContextual("await")) {
+    expr = this.parseAwait(refDestructuringErrors)
+    sawUnary = true
+  } else if (this.type.prefix) {
+    let node = this.startNode(), update = this.type === tt.incDec
+    node.operator = this.value
+    node.prefix = true
+    this.next()
+    node.argument = this.parseMaybeUnary(null, true)
+    this.checkExpressionErrors(refDestructuringErrors, true)
+    if (update) this.checkLVal(node.argument)
+    else if (this.strict && node.operator === "delete" &&
+             node.argument.type === "Identifier")
+      this.raiseRecoverable(node.start, "Deleting local variable in strict mode")
+    else sawUnary = true
+    expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression")
+  } else {
+    expr = this.parseExprSubscripts(refDestructuringErrors)
+    if (this.checkExpressionErrors(refDestructuringErrors)) return expr
+    while (this.type.postfix && !this.canInsertSemicolon()) {
+      let node = this.startNodeAt(startPos, startLoc)
+      node.operator = this.value
+      node.prefix = false
+      node.argument = expr
+      this.checkLVal(expr)
+      this.next()
+      expr = this.finishNode(node, "UpdateExpression")
+    }
+  }
+
+  if (!sawUnary && this.eat(tt.starstar))
+    return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false), "**", false)
+  else
+    return expr
+}
+
+// Parse call, dot, and `[]`-subscript expressions.
+
+pp.parseExprSubscripts = function(refDestructuringErrors) {
+  let startPos = this.start, startLoc = this.startLoc
+  let expr = this.parseExprAtom(refDestructuringErrors)
+  let skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")"
+  if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) return expr
+  let result = this.parseSubscripts(expr, startPos, startLoc)
+  if (refDestructuringErrors && result.type === "MemberExpression") {
+    if (refDestructuringErrors.parenthesizedAssign >= result.start) refDestructuringErrors.parenthesizedAssign = -1
+    if (refDestructuringErrors.parenthesizedBind >= result.start) refDestructuringErrors.parenthesizedBind = -1
+  }
+  return result
+}
+
+pp.parseSubscripts = function(base, startPos, startLoc, noCalls) {
+  let maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
+      this.lastTokEnd == base.end && !this.canInsertSemicolon()
+  for (let computed;;) {
+    if ((computed = this.eat(tt.bracketL)) || this.eat(tt.dot)) {
+      let node = this.startNodeAt(startPos, startLoc)
+      node.object = base
+      node.property = computed ? this.parseExpression() : this.parseIdent(true)
+      node.computed = !!computed
+      if (computed) this.expect(tt.bracketR)
+      base = this.finishNode(node, "MemberExpression")
+    } else if (!noCalls && this.eat(tt.parenL)) {
+      let refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos
+      this.yieldPos = 0
+      this.awaitPos = 0
+      let exprList = this.parseExprList(tt.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors)
+      if (maybeAsyncArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) {
+        this.checkPatternErrors(refDestructuringErrors, false)
+        this.checkYieldAwaitInDefaultParams()
+        this.yieldPos = oldYieldPos
+        this.awaitPos = oldAwaitPos
+        return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, true)
+      }
+      this.checkExpressionErrors(refDestructuringErrors, true)
+      this.yieldPos = oldYieldPos || this.yieldPos
+      this.awaitPos = oldAwaitPos || this.awaitPos
+      let node = this.startNodeAt(startPos, startLoc)
+      node.callee = base
+      node.arguments = exprList
+      base = this.finishNode(node, "CallExpression")
+    } else if (this.type === tt.backQuote) {
+      let node = this.startNodeAt(startPos, startLoc)
+      node.tag = base
+      node.quasi = this.parseTemplate()
+      base = this.finishNode(node, "TaggedTemplateExpression")
+    } else {
+      return base
+    }
+  }
+}
+
+// Parse an atomic expression — either a single token that is an
+// expression, an expression started by a keyword like `function` or
+// `new`, or an expression wrapped in punctuation like `()`, `[]`,
+// or `{}`.
+
+pp.parseExprAtom = function(refDestructuringErrors) {
+  let node, canBeArrow = this.potentialArrowAt == this.start
+  switch (this.type) {
+  case tt._super:
+    if (!this.inFunction)
+      this.raise(this.start, "'super' outside of function or class")
+
+  case tt._this:
+    let type = this.type === tt._this ? "ThisExpression" : "Super"
+    node = this.startNode()
+    this.next()
+    return this.finishNode(node, type)
+
+  case tt.name:
+    let startPos = this.start, startLoc = this.startLoc
+    let id = this.parseIdent(this.type !== tt.name)
+    if (this.options.ecmaVersion >= 8 && id.name === "async" && !this.canInsertSemicolon() && this.eat(tt._function))
+      return this.parseFunction(this.startNodeAt(startPos, startLoc), false, false, true)
+    if (canBeArrow && !this.canInsertSemicolon()) {
+      if (this.eat(tt.arrow))
+        return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false)
+      if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === tt.name) {
+        id = this.parseIdent()
+        if (this.canInsertSemicolon() || !this.eat(tt.arrow))
+          this.unexpected()
+        return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true)
+      }
+    }
+    return id
+
+  case tt.regexp:
+    let value = this.value
+    node = this.parseLiteral(value.value)
+    node.regex = {pattern: value.pattern, flags: value.flags}
+    return node
+
+  case tt.num: case tt.string:
+    return this.parseLiteral(this.value)
+
+  case tt._null: case tt._true: case tt._false:
+    node = this.startNode()
+    node.value = this.type === tt._null ? null : this.type === tt._true
+    node.raw = this.type.keyword
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case tt.parenL:
+    let start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow)
+    if (refDestructuringErrors) {
+      if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
+        refDestructuringErrors.parenthesizedAssign = start
+      if (refDestructuringErrors.parenthesizedBind < 0)
+        refDestructuringErrors.parenthesizedBind = start
+    }
+    return expr
+
+  case tt.bracketL:
+    node = this.startNode()
+    this.next()
+    node.elements = this.parseExprList(tt.bracketR, true, true, refDestructuringErrors)
+    return this.finishNode(node, "ArrayExpression")
+
+  case tt.braceL:
+    return this.parseObj(false, refDestructuringErrors)
+
+  case tt._function:
+    node = this.startNode()
+    this.next()
+    return this.parseFunction(node, false)
+
+  case tt._class:
+    return this.parseClass(this.startNode(), false)
+
+  case tt._new:
+    return this.parseNew()
+
+  case tt.backQuote:
+    return this.parseTemplate()
+
+  default:
+    this.unexpected()
+  }
+}
+
+pp.parseLiteral = function(value) {
+  let node = this.startNode()
+  node.value = value
+  node.raw = this.input.slice(this.start, this.end)
+  this.next()
+  return this.finishNode(node, "Literal")
+}
+
+pp.parseParenExpression = function() {
+  this.expect(tt.parenL)
+  let val = this.parseExpression()
+  this.expect(tt.parenR)
+  return val
+}
+
+pp.parseParenAndDistinguishExpression = function(canBeArrow) {
+  let startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8
+  if (this.options.ecmaVersion >= 6) {
+    this.next()
+
+    let innerStartPos = this.start, innerStartLoc = this.startLoc
+    let exprList = [], first = true, lastIsComma = false
+    let refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart, innerParenStart
+    this.yieldPos = 0
+    this.awaitPos = 0
+    while (this.type !== tt.parenR) {
+      first ? first = false : this.expect(tt.comma)
+      if (allowTrailingComma && this.afterTrailingComma(tt.parenR, true)) {
+        lastIsComma = true
+        break
+      } else if (this.type === tt.ellipsis) {
+        spreadStart = this.start
+        exprList.push(this.parseParenItem(this.parseRest()))
+        if (this.type === tt.comma) this.raise(this.start, "Comma is not permitted after the rest element")
+        break
+      } else {
+        if (this.type === tt.parenL && !innerParenStart) {
+          innerParenStart = this.start
+        }
+        exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem))
+      }
+    }
+    let innerEndPos = this.start, innerEndLoc = this.startLoc
+    this.expect(tt.parenR)
+
+    if (canBeArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) {
+      this.checkPatternErrors(refDestructuringErrors, false)
+      this.checkYieldAwaitInDefaultParams()
+      if (innerParenStart) this.unexpected(innerParenStart)
+      this.yieldPos = oldYieldPos
+      this.awaitPos = oldAwaitPos
+      return this.parseParenArrowList(startPos, startLoc, exprList)
+    }
+
+    if (!exprList.length || lastIsComma) this.unexpected(this.lastTokStart)
+    if (spreadStart) this.unexpected(spreadStart)
+    this.checkExpressionErrors(refDestructuringErrors, true)
+    this.yieldPos = oldYieldPos || this.yieldPos
+    this.awaitPos = oldAwaitPos || this.awaitPos
+
+    if (exprList.length > 1) {
+      val = this.startNodeAt(innerStartPos, innerStartLoc)
+      val.expressions = exprList
+      this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc)
+    } else {
+      val = exprList[0]
+    }
+  } else {
+    val = this.parseParenExpression()
+  }
+
+  if (this.options.preserveParens) {
+    let par = this.startNodeAt(startPos, startLoc)
+    par.expression = val
+    return this.finishNode(par, "ParenthesizedExpression")
+  } else {
+    return val
+  }
+}
+
+pp.parseParenItem = function(item) {
+  return item
+}
+
+pp.parseParenArrowList = function(startPos, startLoc, exprList) {
+  return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList)
+}
+
+// New's precedence is slightly tricky. It must allow its argument to
+// be a `[]` or dot subscript expression, but not a call — at least,
+// not without wrapping it in parentheses. Thus, it uses the noCalls
+// argument to parseSubscripts to prevent it from consuming the
+// argument list.
+
+const empty = []
+
+pp.parseNew = function() {
+  let node = this.startNode()
+  let meta = this.parseIdent(true)
+  if (this.options.ecmaVersion >= 6 && this.eat(tt.dot)) {
+    node.meta = meta
+    node.property = this.parseIdent(true)
+    if (node.property.name !== "target")
+      this.raiseRecoverable(node.property.start, "The only valid meta property for new is new.target")
+    if (!this.inFunction)
+      this.raiseRecoverable(node.start, "new.target can only be used in functions")
+    return this.finishNode(node, "MetaProperty")
+  }
+  let startPos = this.start, startLoc = this.startLoc
+  node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true)
+  if (this.eat(tt.parenL)) node.arguments = this.parseExprList(tt.parenR, this.options.ecmaVersion >= 8, false)
+  else node.arguments = empty
+  return this.finishNode(node, "NewExpression")
+}
+
+// Parse template expression.
+
+pp.parseTemplateElement = function() {
+  let elem = this.startNode()
+  elem.value = {
+    raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, '\n'),
+    cooked: this.value
+  }
+  this.next()
+  elem.tail = this.type === tt.backQuote
+  return this.finishNode(elem, "TemplateElement")
+}
+
+pp.parseTemplate = function() {
+  let node = this.startNode()
+  this.next()
+  node.expressions = []
+  let curElt = this.parseTemplateElement()
+  node.quasis = [curElt]
+  while (!curElt.tail) {
+    this.expect(tt.dollarBraceL)
+    node.expressions.push(this.parseExpression())
+    this.expect(tt.braceR)
+    node.quasis.push(curElt = this.parseTemplateElement())
+  }
+  this.next()
+  return this.finishNode(node, "TemplateLiteral")
+}
+
+// Parse an object literal or binding pattern.
+
+pp.parseObj = function(isPattern, refDestructuringErrors) {
+  let node = this.startNode(), first = true, propHash = {}
+  node.properties = []
+  this.next()
+  while (!this.eat(tt.braceR)) {
+    if (!first) {
+      this.expect(tt.comma)
+      if (this.afterTrailingComma(tt.braceR)) break
+    } else first = false
+
+    let prop = this.startNode(), isGenerator, isAsync, startPos, startLoc
+    if (this.options.ecmaVersion >= 6) {
+      prop.method = false
+      prop.shorthand = false
+      if (isPattern || refDestructuringErrors) {
+        startPos = this.start
+        startLoc = this.startLoc
+      }
+      if (!isPattern)
+        isGenerator = this.eat(tt.star)
+    }
+    this.parsePropertyName(prop)
+    if (!isPattern && this.options.ecmaVersion >= 8 && !isGenerator && !prop.computed &&
+        prop.key.type === "Identifier" && prop.key.name === "async" && this.type !== tt.parenL &&
+        this.type !== tt.colon && !this.canInsertSemicolon()) {
+      isAsync = true
+      this.parsePropertyName(prop, refDestructuringErrors)
+    } else {
+      isAsync = false
+    }
+    this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors)
+    this.checkPropClash(prop, propHash)
+    node.properties.push(this.finishNode(prop, "Property"))
+  }
+  return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
+}
+
+pp.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors) {
+  if ((isGenerator || isAsync) && this.type === tt.colon)
+    this.unexpected()
+
+  if (this.eat(tt.colon)) {
+    prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors)
+    prop.kind = "init"
+  } else if (this.options.ecmaVersion >= 6 && this.type === tt.parenL) {
+    if (isPattern) this.unexpected()
+    prop.kind = "init"
+    prop.method = true
+    prop.value = this.parseMethod(isGenerator, isAsync)
+  } else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
+             (prop.key.name === "get" || prop.key.name === "set") &&
+             (this.type != tt.comma && this.type != tt.braceR)) {
+    if (isGenerator || isAsync || isPattern) this.unexpected()
+    prop.kind = prop.key.name
+    this.parsePropertyName(prop)
+    prop.value = this.parseMethod(false)
+    let paramCount = prop.kind === "get" ? 0 : 1
+    if (prop.value.params.length !== paramCount) {
+      let start = prop.value.start
+      if (prop.kind === "get")
+        this.raiseRecoverable(start, "getter should have no params")
+      else
+        this.raiseRecoverable(start, "setter should have exactly one param")
+    } else {
+      if (prop.kind === "set" && prop.value.params[0].type === "RestElement")
+        this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params")
+    }
+  } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
+    if (this.keywords.test(prop.key.name) ||
+        (this.strict ? this.reservedWordsStrict : this.reservedWords).test(prop.key.name) ||
+        (this.inGenerator && prop.key.name == "yield") ||
+        (this.inAsync && prop.key.name == "await"))
+      this.raiseRecoverable(prop.key.start, "'" + prop.key.name + "' can not be used as shorthand property")
+    prop.kind = "init"
+    if (isPattern) {
+      prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key)
+    } else if (this.type === tt.eq && refDestructuringErrors) {
+      if (refDestructuringErrors.shorthandAssign < 0)
+        refDestructuringErrors.shorthandAssign = this.start
+      prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key)
+    } else {
+      prop.value = prop.key
+    }
+    prop.shorthand = true
+  } else this.unexpected()
+}
+
+pp.parsePropertyName = function(prop) {
+  if (this.options.ecmaVersion >= 6) {
+    if (this.eat(tt.bracketL)) {
+      prop.computed = true
+      prop.key = this.parseMaybeAssign()
+      this.expect(tt.bracketR)
+      return prop.key
+    } else {
+      prop.computed = false
+    }
+  }
+  return prop.key = this.type === tt.num || this.type === tt.string ? this.parseExprAtom() : this.parseIdent(true)
+}
+
+// Initialize empty function node.
+
+pp.initFunction = function(node) {
+  node.id = null
+  if (this.options.ecmaVersion >= 6) {
+    node.generator = false
+    node.expression = false
+  }
+  if (this.options.ecmaVersion >= 8)
+    node.async = false
+}
+
+// Parse object or class method.
+
+pp.parseMethod = function(isGenerator, isAsync) {
+  let node = this.startNode(), oldInGen = this.inGenerator, oldInAsync = this.inAsync,
+      oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction
+
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 6)
+    node.generator = isGenerator
+  if (this.options.ecmaVersion >= 8)
+    node.async = !!isAsync
+
+  this.inGenerator = node.generator
+  this.inAsync = node.async
+  this.yieldPos = 0
+  this.awaitPos = 0
+  this.inFunction = true
+
+  this.expect(tt.parenL)
+  node.params = this.parseBindingList(tt.parenR, false, this.options.ecmaVersion >= 8)
+  this.checkYieldAwaitInDefaultParams()
+  this.parseFunctionBody(node, false)
+
+  this.inGenerator = oldInGen
+  this.inAsync = oldInAsync
+  this.yieldPos = oldYieldPos
+  this.awaitPos = oldAwaitPos
+  this.inFunction = oldInFunc
+  return this.finishNode(node, "FunctionExpression")
+}
+
+// Parse arrow function expression with given parameters.
+
+pp.parseArrowExpression = function(node, params, isAsync) {
+  let oldInGen = this.inGenerator, oldInAsync = this.inAsync,
+      oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction
+
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 8)
+    node.async = !!isAsync
+
+  this.inGenerator = false
+  this.inAsync = node.async
+  this.yieldPos = 0
+  this.awaitPos = 0
+  this.inFunction = true
+
+  node.params = this.toAssignableList(params, true)
+  this.parseFunctionBody(node, true)
+
+  this.inGenerator = oldInGen
+  this.inAsync = oldInAsync
+  this.yieldPos = oldYieldPos
+  this.awaitPos = oldAwaitPos
+  this.inFunction = oldInFunc
+  return this.finishNode(node, "ArrowFunctionExpression")
+}
+
+// Parse function body and check parameters.
+
+pp.parseFunctionBody = function(node, isArrowFunction) {
+  let isExpression = isArrowFunction && this.type !== tt.braceL
+  let oldStrict = this.strict, useStrict = false
+
+  if (isExpression) {
+    node.body = this.parseMaybeAssign()
+    node.expression = true
+  } else {
+    let nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params)
+    if (!oldStrict || nonSimple) {
+      useStrict = this.strictDirective(this.end)
+      // If this is a strict mode function, verify that argument names
+      // are not repeated, and it does not try to bind the words `eval`
+      // or `arguments`.
+      if (useStrict && nonSimple)
+        this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list")
+    }
+    // Start a new scope with regard to labels and the `inFunction`
+    // flag (restore them to their old value afterwards).
+    let oldLabels = this.labels
+    this.labels = []
+    if (useStrict) this.strict = true
+    node.body = this.parseBlock(true)
+    node.expression = false
+    this.labels = oldLabels
+  }
+
+  if (oldStrict || useStrict) {
+    this.strict = true
+    if (node.id)
+      this.checkLVal(node.id, true)
+    this.checkParams(node)
+    this.strict = oldStrict
+  } else if (isArrowFunction || !this.isSimpleParamList(node.params)) {
+    this.checkParams(node)
+  }
+}
+
+pp.isSimpleParamList = function(params) {
+  for (let i = 0; i < params.length; i++)
+    if (params[i].type !== "Identifier") return false
+  return true
+}
+
+// Checks function params for various disallowed patterns such as using "eval"
+// or "arguments" and duplicate parameters.
+
+pp.checkParams = function(node) {
+  let nameHash = {}
+  for (let i = 0; i < node.params.length; i++) this.checkLVal(node.params[i], true, nameHash)
+}
+
+// Parses a comma-separated list of expressions, and returns them as
+// an array. `close` is the token type that ends the list, and
+// `allowEmpty` can be turned on to allow subsequent commas with
+// nothing in between them to be parsed as `null` (which is needed
+// for array literals).
+
+pp.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
+  let elts = [], first = true
+  while (!this.eat(close)) {
+    if (!first) {
+      this.expect(tt.comma)
+      if (allowTrailingComma && this.afterTrailingComma(close)) break
+    } else first = false
+
+    let elt
+    if (allowEmpty && this.type === tt.comma)
+      elt = null
+    else if (this.type === tt.ellipsis) {
+      elt = this.parseSpread(refDestructuringErrors)
+      if (refDestructuringErrors && this.type === tt.comma && refDestructuringErrors.trailingComma < 0)
+        refDestructuringErrors.trailingComma = this.start
+    } else {
+      elt = this.parseMaybeAssign(false, refDestructuringErrors)
+    }
+    elts.push(elt)
+  }
+  return elts
+}
+
+// Parse the next token as an identifier. If `liberal` is true (used
+// when parsing properties), it will also convert keywords into
+// identifiers.
+
+pp.parseIdent = function(liberal) {
+  let node = this.startNode()
+  if (liberal && this.options.allowReserved == "never") liberal = false
+  if (this.type === tt.name) {
+    if (!liberal && (this.strict ? this.reservedWordsStrict : this.reservedWords).test(this.value) &&
+        (this.options.ecmaVersion >= 6 ||
+         this.input.slice(this.start, this.end).indexOf("\\") == -1))
+      this.raiseRecoverable(this.start, "The keyword '" + this.value + "' is reserved")
+    if (this.inGenerator && this.value === "yield")
+      this.raiseRecoverable(this.start, "Can not use 'yield' as identifier inside a generator")
+    if (this.inAsync && this.value === "await")
+      this.raiseRecoverable(this.start, "Can not use 'await' as identifier inside an async function")
+    node.name = this.value
+  } else if (liberal && this.type.keyword) {
+    node.name = this.type.keyword
+  } else {
+    this.unexpected()
+  }
+  this.next()
+  return this.finishNode(node, "Identifier")
+}
+
+// Parses yield expression inside generator.
+
+pp.parseYield = function() {
+  if (!this.yieldPos) this.yieldPos = this.start
+
+  let node = this.startNode()
+  this.next()
+  if (this.type == tt.semi || this.canInsertSemicolon() || (this.type != tt.star && !this.type.startsExpr)) {
+    node.delegate = false
+    node.argument = null
+  } else {
+    node.delegate = this.eat(tt.star)
+    node.argument = this.parseMaybeAssign()
+  }
+  return this.finishNode(node, "YieldExpression")
+}
+
+pp.parseAwait = function() {
+  if (!this.awaitPos) this.awaitPos = this.start
+
+  let node = this.startNode()
+  this.next()
+  node.argument = this.parseMaybeUnary(null, true)
+  return this.finishNode(node, "AwaitExpression")
+}

node_modules/acorn/src/index.js

@@ -0,0 +1,77 @@
+// Acorn is a tiny, fast JavaScript parser written in JavaScript.
+//
+// Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and
+// various contributors and released under an MIT license.
+//
+// Git repositories for Acorn are available at
+//
+//     http://marijnhaverbeke.nl/git/acorn
+//     https://github.com/ternjs/acorn.git
+//
+// Please use the [github bug tracker][ghbt] to report issues.
+//
+// [ghbt]: https://github.com/ternjs/acorn/issues
+//
+// This file defines the main parser interface. The library also comes
+// with a [error-tolerant parser][dammit] and an
+// [abstract syntax tree walker][walk], defined in other files.
+//
+// [dammit]: acorn_loose.js
+// [walk]: util/walk.js
+
+import {Parser} from "./state"
+import "./parseutil"
+import "./statement"
+import "./lval"
+import "./expression"
+import "./location"
+
+export {Parser, plugins} from "./state"
+export {defaultOptions} from "./options"
+export {Position, SourceLocation, getLineInfo} from "./locutil"
+export {Node} from "./node"
+export {TokenType, types as tokTypes, keywords as keywordTypes} from "./tokentype"
+export {TokContext, types as tokContexts} from "./tokencontext"
+export {isIdentifierChar, isIdentifierStart} from "./identifier"
+export {Token} from "./tokenize"
+export {isNewLine, lineBreak, lineBreakG} from "./whitespace"
+
+export const version = "4.0.11"
+
+// The main exported interface (under `self.acorn` when in the
+// browser) is a `parse` function that takes a code string and
+// returns an abstract syntax tree as specified by [Mozilla parser
+// API][api].
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+
+export function parse(input, options) {
+  return new Parser(options, input).parse()
+}
+
+// This function tries to parse a single expression at a given
+// offset in a string. Useful for parsing mixed-language formats
+// that embed JavaScript expressions.
+
+export function parseExpressionAt(input, pos, options) {
+  let p = new Parser(options, input, pos)
+  p.nextToken()
+  return p.parseExpression()
+}
+
+// Acorn is organized as a tokenizer and a recursive-descent parser.
+// The `tokenizer` export provides an interface to the tokenizer.
+
+export function tokenizer(input, options) {
+  return new Parser(options, input)
+}
+
+// This is a terrible kludge to support the existing, pre-ES6
+// interface where the loose parser module retroactively adds exports
+// to this module.
+export let parse_dammit, LooseParser, pluginsLoose
+export function addLooseExports(parse, Parser, plugins) {
+  parse_dammit = parse
+  LooseParser = Parser
+  pluginsLoose = plugins
+}

node_modules/acorn/src/location.js

@@ -0,0 +1,26 @@
+import {Parser} from "./state"
+import {Position, getLineInfo} from "./locutil"
+
+const pp = Parser.prototype
+
+// This function is used to raise exceptions on parse errors. It
+// takes an offset integer (into the current `input`) to indicate
+// the location of the error, attaches the position to the end
+// of the error message, and then raises a `SyntaxError` with that
+// message.
+
+pp.raise = function(pos, message) {
+  let loc = getLineInfo(this.input, pos)
+  message += " (" + loc.line + ":" + loc.column + ")"
+  let err = new SyntaxError(message)
+  err.pos = pos; err.loc = loc; err.raisedAt = this.pos
+  throw err
+}
+
+pp.raiseRecoverable = pp.raise
+
+pp.curPosition = function() {
+  if (this.options.locations) {
+    return new Position(this.curLine, this.pos - this.lineStart)
+  }
+}

node_modules/acorn/src/locutil.js

@@ -0,0 +1,42 @@
+import {lineBreakG} from "./whitespace"
+
+// These are used when `options.locations` is on, for the
+// `startLoc` and `endLoc` properties.
+
+export class Position {
+  constructor(line, col) {
+    this.line = line
+    this.column = col
+  }
+
+  offset(n) {
+    return new Position(this.line, this.column + n)
+  }
+}
+
+export class SourceLocation {
+  constructor(p, start, end) {
+    this.start = start
+    this.end = end
+    if (p.sourceFile !== null) this.source = p.sourceFile
+  }
+}
+
+// The `getLineInfo` function is mostly useful when the
+// `locations` option is off (for performance reasons) and you
+// want to find the line/column position for a given character
+// offset. `input` should be the code string that the offset refers
+// into.
+
+export function getLineInfo(input, offset) {
+  for (let line = 1, cur = 0;;) {
+    lineBreakG.lastIndex = cur
+    let match = lineBreakG.exec(input)
+    if (match && match.index < offset) {
+      ++line
+      cur = match.index + match[0].length
+    } else {
+      return new Position(line, offset - cur)
+    }
+  }
+}

node_modules/acorn/src/loose/expression.js

@@ -0,0 +1,562 @@
+import {LooseParser} from "./state"
+import {isDummy} from "./parseutil"
+import {tokTypes as tt} from "../index"
+
+const lp = LooseParser.prototype
+
+lp.checkLVal = function(expr) {
+  if (!expr) return expr
+  switch (expr.type) {
+  case "Identifier":
+  case "MemberExpression":
+    return expr
+
+  case "ParenthesizedExpression":
+    expr.expression = this.checkLVal(expr.expression)
+    return expr
+
+  default:
+    return this.dummyIdent()
+  }
+}
+
+lp.parseExpression = function(noIn) {
+  let start = this.storeCurrentPos()
+  let expr = this.parseMaybeAssign(noIn)
+  if (this.tok.type === tt.comma) {
+    let node = this.startNodeAt(start)
+    node.expressions = [expr]
+    while (this.eat(tt.comma)) node.expressions.push(this.parseMaybeAssign(noIn))
+    return this.finishNode(node, "SequenceExpression")
+  }
+  return expr
+}
+
+lp.parseParenExpression = function() {
+  this.pushCx()
+  this.expect(tt.parenL)
+  let val = this.parseExpression()
+  this.popCx()
+  this.expect(tt.parenR)
+  return val
+}
+
+lp.parseMaybeAssign = function(noIn) {
+  if (this.toks.isContextual("yield")) {
+    let node = this.startNode()
+    this.next()
+    if (this.semicolon() || this.canInsertSemicolon() || (this.tok.type != tt.star && !this.tok.type.startsExpr)) {
+      node.delegate = false
+      node.argument = null
+    } else {
+      node.delegate = this.eat(tt.star)
+      node.argument = this.parseMaybeAssign()
+    }
+    return this.finishNode(node, "YieldExpression")
+  }
+
+  let start = this.storeCurrentPos()
+  let left = this.parseMaybeConditional(noIn)
+  if (this.tok.type.isAssign) {
+    let node = this.startNodeAt(start)
+    node.operator = this.tok.value
+    node.left = this.tok.type === tt.eq ? this.toAssignable(left) : this.checkLVal(left)
+    this.next()
+    node.right = this.parseMaybeAssign(noIn)
+    return this.finishNode(node, "AssignmentExpression")
+  }
+  return left
+}
+
+lp.parseMaybeConditional = function(noIn) {
+  let start = this.storeCurrentPos()
+  let expr = this.parseExprOps(noIn)
+  if (this.eat(tt.question)) {
+    let node = this.startNodeAt(start)
+    node.test = expr
+    node.consequent = this.parseMaybeAssign()
+    node.alternate = this.expect(tt.colon) ? this.parseMaybeAssign(noIn) : this.dummyIdent()
+    return this.finishNode(node, "ConditionalExpression")
+  }
+  return expr
+}
+
+lp.parseExprOps = function(noIn) {
+  let start = this.storeCurrentPos()
+  let indent = this.curIndent, line = this.curLineStart
+  return this.parseExprOp(this.parseMaybeUnary(false), start, -1, noIn, indent, line)
+}
+
+lp.parseExprOp = function(left, start, minPrec, noIn, indent, line) {
+  if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) return left
+  let prec = this.tok.type.binop
+  if (prec != null && (!noIn || this.tok.type !== tt._in)) {
+    if (prec > minPrec) {
+      let node = this.startNodeAt(start)
+      node.left = left
+      node.operator = this.tok.value
+      this.next()
+      if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) {
+        node.right = this.dummyIdent()
+      } else {
+        let rightStart = this.storeCurrentPos()
+        node.right = this.parseExprOp(this.parseMaybeUnary(false), rightStart, prec, noIn, indent, line)
+      }
+      this.finishNode(node, /&&|\|\|/.test(node.operator) ? "LogicalExpression" : "BinaryExpression")
+      return this.parseExprOp(node, start, minPrec, noIn, indent, line)
+    }
+  }
+  return left
+}
+
+lp.parseMaybeUnary = function(sawUnary) {
+  let start = this.storeCurrentPos(), expr
+  if (this.options.ecmaVersion >= 8 && this.inAsync && this.toks.isContextual("await")) {
+    expr = this.parseAwait()
+    sawUnary = true
+  } else if (this.tok.type.prefix) {
+    let node = this.startNode(), update = this.tok.type === tt.incDec
+    if (!update) sawUnary = true
+    node.operator = this.tok.value
+    node.prefix = true
+    this.next()
+    node.argument = this.parseMaybeUnary(true)
+    if (update) node.argument = this.checkLVal(node.argument)
+    expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression")
+  } else if (this.tok.type === tt.ellipsis) {
+    let node = this.startNode()
+    this.next()
+    node.argument = this.parseMaybeUnary(sawUnary)
+    expr = this.finishNode(node, "SpreadElement")
+  } else {
+    expr = this.parseExprSubscripts()
+    while (this.tok.type.postfix && !this.canInsertSemicolon()) {
+      let node = this.startNodeAt(start)
+      node.operator = this.tok.value
+      node.prefix = false
+      node.argument = this.checkLVal(expr)
+      this.next()
+      expr = this.finishNode(node, "UpdateExpression")
+    }
+  }
+
+  if (!sawUnary && this.eat(tt.starstar)) {
+    let node = this.startNodeAt(start)
+    node.operator = "**"
+    node.left = expr
+    node.right = this.parseMaybeUnary(false)
+    return this.finishNode(node, "BinaryExpression")
+  }
+
+  return expr
+}
+
+lp.parseExprSubscripts = function() {
+  let start = this.storeCurrentPos()
+  return this.parseSubscripts(this.parseExprAtom(), start, false, this.curIndent, this.curLineStart)
+}
+
+lp.parseSubscripts = function(base, start, noCalls, startIndent, line) {
+  for (;;) {
+    if (this.curLineStart != line && this.curIndent <= startIndent && this.tokenStartsLine()) {
+      if (this.tok.type == tt.dot && this.curIndent == startIndent)
+        --startIndent
+      else
+        return base
+    }
+
+    let maybeAsyncArrow = base.type === "Identifier" && base.name === "async" && !this.canInsertSemicolon()
+
+    if (this.eat(tt.dot)) {
+      let node = this.startNodeAt(start)
+      node.object = base
+      if (this.curLineStart != line && this.curIndent <= startIndent && this.tokenStartsLine())
+        node.property = this.dummyIdent()
+      else
+        node.property = this.parsePropertyAccessor() || this.dummyIdent()
+      node.computed = false
+      base = this.finishNode(node, "MemberExpression")
+    } else if (this.tok.type == tt.bracketL) {
+      this.pushCx()
+      this.next()
+      let node = this.startNodeAt(start)
+      node.object = base
+      node.property = this.parseExpression()
+      node.computed = true
+      this.popCx()
+      this.expect(tt.bracketR)
+      base = this.finishNode(node, "MemberExpression")
+    } else if (!noCalls && this.tok.type == tt.parenL) {
+      let exprList = this.parseExprList(tt.parenR)
+      if (maybeAsyncArrow && this.eat(tt.arrow))
+        return this.parseArrowExpression(this.startNodeAt(start), exprList, true)
+      let node = this.startNodeAt(start)
+      node.callee = base
+      node.arguments = exprList
+      base = this.finishNode(node, "CallExpression")
+    } else if (this.tok.type == tt.backQuote) {
+      let node = this.startNodeAt(start)
+      node.tag = base
+      node.quasi = this.parseTemplate()
+      base = this.finishNode(node, "TaggedTemplateExpression")
+    } else {
+      return base
+    }
+  }
+}
+
+lp.parseExprAtom = function() {
+  let node
+  switch (this.tok.type) {
+  case tt._this:
+  case tt._super:
+    let type = this.tok.type === tt._this ? "ThisExpression" : "Super"
+    node = this.startNode()
+    this.next()
+    return this.finishNode(node, type)
+
+  case tt.name:
+    let start = this.storeCurrentPos()
+    let id = this.parseIdent()
+    let isAsync = false
+    if (id.name === "async" && !this.canInsertSemicolon()) {
+      if (this.eat(tt._function))
+        return this.parseFunction(this.startNodeAt(start), false, true)
+      if (this.tok.type === tt.name) {
+        id = this.parseIdent()
+        isAsync = true
+      }
+    }
+    return this.eat(tt.arrow) ? this.parseArrowExpression(this.startNodeAt(start), [id], isAsync) : id
+
+  case tt.regexp:
+    node = this.startNode()
+    let val = this.tok.value
+    node.regex = {pattern: val.pattern, flags: val.flags}
+    node.value = val.value
+    node.raw = this.input.slice(this.tok.start, this.tok.end)
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case tt.num: case tt.string:
+    node = this.startNode()
+    node.value = this.tok.value
+    node.raw = this.input.slice(this.tok.start, this.tok.end)
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case tt._null: case tt._true: case tt._false:
+    node = this.startNode()
+    node.value = this.tok.type === tt._null ? null : this.tok.type === tt._true
+    node.raw = this.tok.type.keyword
+    this.next()
+    return this.finishNode(node, "Literal")
+
+  case tt.parenL:
+    let parenStart = this.storeCurrentPos()
+    this.next()
+    let inner = this.parseExpression()
+    this.expect(tt.parenR)
+    if (this.eat(tt.arrow)) {
+      // (a,)=>a // SequenceExpression makes dummy in the last hole. Drop the dummy.
+      let params = inner.expressions || [inner]
+      if (params.length && isDummy(params[params.length - 1]))
+        params.pop()
+      return this.parseArrowExpression(this.startNodeAt(parenStart), params)
+    }
+    if (this.options.preserveParens) {
+      let par = this.startNodeAt(parenStart)
+      par.expression = inner
+      inner = this.finishNode(par, "ParenthesizedExpression")
+    }
+    return inner
+
+  case tt.bracketL:
+    node = this.startNode()
+    node.elements = this.parseExprList(tt.bracketR, true)
+    return this.finishNode(node, "ArrayExpression")
+
+  case tt.braceL:
+    return this.parseObj()
+
+  case tt._class:
+    return this.parseClass(false)
+
+  case tt._function:
+    node = this.startNode()
+    this.next()
+    return this.parseFunction(node, false)
+
+  case tt._new:
+    return this.parseNew()
+
+  case tt.backQuote:
+    return this.parseTemplate()
+
+  default:
+    return this.dummyIdent()
+  }
+}
+
+lp.parseNew = function() {
+  let node = this.startNode(), startIndent = this.curIndent, line = this.curLineStart
+  let meta = this.parseIdent(true)
+  if (this.options.ecmaVersion >= 6 && this.eat(tt.dot)) {
+    node.meta = meta
+    node.property = this.parseIdent(true)
+    return this.finishNode(node, "MetaProperty")
+  }
+  let start = this.storeCurrentPos()
+  node.callee = this.parseSubscripts(this.parseExprAtom(), start, true, startIndent, line)
+  if (this.tok.type == tt.parenL) {
+    node.arguments = this.parseExprList(tt.parenR)
+  } else {
+    node.arguments = []
+  }
+  return this.finishNode(node, "NewExpression")
+}
+
+lp.parseTemplateElement = function() {
+  let elem = this.startNode()
+  elem.value = {
+    raw: this.input.slice(this.tok.start, this.tok.end).replace(/\r\n?/g, '\n'),
+    cooked: this.tok.value
+  }
+  this.next()
+  elem.tail = this.tok.type === tt.backQuote
+  return this.finishNode(elem, "TemplateElement")
+}
+
+lp.parseTemplate = function() {
+  let node = this.startNode()
+  this.next()
+  node.expressions = []
+  let curElt = this.parseTemplateElement()
+  node.quasis = [curElt]
+  while (!curElt.tail) {
+    this.next()
+    node.expressions.push(this.parseExpression())
+    if (this.expect(tt.braceR)) {
+      curElt = this.parseTemplateElement()
+    } else {
+      curElt = this.startNode()
+      curElt.value = {cooked: '', raw: ''}
+      curElt.tail = true
+      this.finishNode(curElt, "TemplateElement")
+    }
+    node.quasis.push(curElt)
+  }
+  this.expect(tt.backQuote)
+  return this.finishNode(node, "TemplateLiteral")
+}
+
+lp.parseObj = function() {
+  let node = this.startNode()
+  node.properties = []
+  this.pushCx()
+  let indent = this.curIndent + 1, line = this.curLineStart
+  this.eat(tt.braceL)
+  if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart }
+  while (!this.closes(tt.braceR, indent, line)) {
+    let prop = this.startNode(), isGenerator, isAsync, start
+    if (this.options.ecmaVersion >= 6) {
+      start = this.storeCurrentPos()
+      prop.method = false
+      prop.shorthand = false
+      isGenerator = this.eat(tt.star)
+    }
+    this.parsePropertyName(prop)
+    if (!prop.computed &&
+        prop.key.type === "Identifier" && prop.key.name === "async" && this.tok.type !== tt.parenL &&
+        this.tok.type !== tt.colon && !this.canInsertSemicolon()) {
+      this.parsePropertyName(prop)
+      isAsync = true
+    } else {
+      isAsync = false
+    }
+    if (isDummy(prop.key)) { if (isDummy(this.parseMaybeAssign())) this.next(); this.eat(tt.comma); continue }
+    if (this.eat(tt.colon)) {
+      prop.kind = "init"
+      prop.value = this.parseMaybeAssign()
+    } else if (this.options.ecmaVersion >= 6 && (this.tok.type === tt.parenL || this.tok.type === tt.braceL)) {
+      prop.kind = "init"
+      prop.method = true
+      prop.value = this.parseMethod(isGenerator, isAsync)
+    } else if (this.options.ecmaVersion >= 5 && prop.key.type === "Identifier" &&
+               !prop.computed && (prop.key.name === "get" || prop.key.name === "set") &&
+               (this.tok.type != tt.comma && this.tok.type != tt.braceR)) {
+      prop.kind = prop.key.name
+      this.parsePropertyName(prop)
+      prop.value = this.parseMethod(false)
+    } else {
+      prop.kind = "init"
+      if (this.options.ecmaVersion >= 6) {
+        if (this.eat(tt.eq)) {
+          let assign = this.startNodeAt(start)
+          assign.operator = "="
+          assign.left = prop.key
+          assign.right = this.parseMaybeAssign()
+          prop.value = this.finishNode(assign, "AssignmentExpression")
+        } else {
+          prop.value = prop.key
+        }
+      } else {
+        prop.value = this.dummyIdent()
+      }
+      prop.shorthand = true
+    }
+    node.properties.push(this.finishNode(prop, "Property"))
+    this.eat(tt.comma)
+  }
+  this.popCx()
+  if (!this.eat(tt.braceR)) {
+    // If there is no closing brace, make the node span to the start
+    // of the next token (this is useful for Tern)
+    this.last.end = this.tok.start
+    if (this.options.locations) this.last.loc.end = this.tok.loc.start
+  }
+  return this.finishNode(node, "ObjectExpression")
+}
+
+lp.parsePropertyName = function(prop) {
+  if (this.options.ecmaVersion >= 6) {
+    if (this.eat(tt.bracketL)) {
+      prop.computed = true
+      prop.key = this.parseExpression()
+      this.expect(tt.bracketR)
+      return
+    } else {
+      prop.computed = false
+    }
+  }
+  let key = (this.tok.type === tt.num || this.tok.type === tt.string) ? this.parseExprAtom() : this.parseIdent()
+  prop.key = key || this.dummyIdent()
+}
+
+lp.parsePropertyAccessor = function() {
+  if (this.tok.type === tt.name || this.tok.type.keyword) return this.parseIdent()
+}
+
+lp.parseIdent = function() {
+  let name = this.tok.type === tt.name ? this.tok.value : this.tok.type.keyword
+  if (!name) return this.dummyIdent()
+  let node = this.startNode()
+  this.next()
+  node.name = name
+  return this.finishNode(node, "Identifier")
+}
+
+lp.initFunction = function(node) {
+  node.id = null
+  node.params = []
+  if (this.options.ecmaVersion >= 6) {
+    node.generator = false
+    node.expression = false
+  }
+  if (this.options.ecmaVersion >= 8)
+    node.async = false
+}
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+lp.toAssignable = function(node, binding) {
+  if (!node || node.type == "Identifier" || (node.type == "MemberExpression" && !binding)) {
+    // Okay
+  } else if (node.type == "ParenthesizedExpression") {
+    node.expression = this.toAssignable(node.expression, binding)
+  } else if (this.options.ecmaVersion < 6) {
+    return this.dummyIdent()
+  } else if (node.type == "ObjectExpression") {
+    node.type = "ObjectPattern"
+    let props = node.properties
+    for (let i = 0; i < props.length; i++)
+      props[i].value = this.toAssignable(props[i].value, binding)
+  } else if (node.type == "ArrayExpression") {
+    node.type = "ArrayPattern"
+    this.toAssignableList(node.elements, binding)
+  } else if (node.type == "SpreadElement") {
+    node.type = "RestElement"
+    node.argument = this.toAssignable(node.argument, binding)
+  } else if (node.type == "AssignmentExpression") {
+    node.type = "AssignmentPattern"
+    delete node.operator
+  } else {
+    return this.dummyIdent()
+  }
+  return node
+}
+
+lp.toAssignableList = function(exprList, binding) {
+  for (let i = 0; i < exprList.length; i++)
+    exprList[i] = this.toAssignable(exprList[i], binding)
+  return exprList
+}
+
+lp.parseFunctionParams = function(params) {
+  params = this.parseExprList(tt.parenR)
+  return this.toAssignableList(params, true)
+}
+
+lp.parseMethod = function(isGenerator, isAsync) {
+  let node = this.startNode(), oldInAsync = this.inAsync
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 6)
+    node.generator = !!isGenerator
+  if (this.options.ecmaVersion >= 8)
+    node.async = !!isAsync
+  this.inAsync = node.async
+  node.params = this.parseFunctionParams()
+  node.expression = this.options.ecmaVersion >= 6 && this.tok.type !== tt.braceL
+  node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock()
+  this.inAsync = oldInAsync
+  return this.finishNode(node, "FunctionExpression")
+}
+
+lp.parseArrowExpression = function(node, params, isAsync) {
+  let oldInAsync = this.inAsync
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 8)
+    node.async = !!isAsync
+  this.inAsync = node.async
+  node.params = this.toAssignableList(params, true)
+  node.expression = this.tok.type !== tt.braceL
+  node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock()
+  this.inAsync = oldInAsync
+  return this.finishNode(node, "ArrowFunctionExpression")
+}
+
+lp.parseExprList = function(close, allowEmpty) {
+  this.pushCx()
+  let indent = this.curIndent, line = this.curLineStart, elts = []
+  this.next() // Opening bracket
+  while (!this.closes(close, indent + 1, line)) {
+    if (this.eat(tt.comma)) {
+      elts.push(allowEmpty ? null : this.dummyIdent())
+      continue
+    }
+    let elt = this.parseMaybeAssign()
+    if (isDummy(elt)) {
+      if (this.closes(close, indent, line)) break
+      this.next()
+    } else {
+      elts.push(elt)
+    }
+    this.eat(tt.comma)
+  }
+  this.popCx()
+  if (!this.eat(close)) {
+    // If there is no closing brace, make the node span to the start
+    // of the next token (this is useful for Tern)
+    this.last.end = this.tok.start
+    if (this.options.locations) this.last.loc.end = this.tok.loc.start
+  }
+  return elts
+}
+
+lp.parseAwait = function() {
+  let node = this.startNode()
+  this.next()
+  node.argument = this.parseMaybeUnary()
+  return this.finishNode(node, "AwaitExpression")
+}

node_modules/acorn/src/loose/index.js

@@ -0,0 +1,48 @@
+// Acorn: Loose parser
+//
+// This module provides an alternative parser (`parse_dammit`) that
+// exposes that same interface as `parse`, but will try to parse
+// anything as JavaScript, repairing syntax error the best it can.
+// There are circumstances in which it will raise an error and give
+// up, but they are very rare. The resulting AST will be a mostly
+// valid JavaScript AST (as per the [Mozilla parser API][api], except
+// that:
+//
+// - Return outside functions is allowed
+//
+// - Label consistency (no conflicts, break only to existing labels)
+//   is not enforced.
+//
+// - Bogus Identifier nodes with a name of `"✖"` are inserted whenever
+//   the parser got too confused to return anything meaningful.
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+//
+// The expected use for this is to *first* try `acorn.parse`, and only
+// if that fails switch to `parse_dammit`. The loose parser might
+// parse badly indented code incorrectly, so **don't** use it as
+// your default parser.
+//
+// Quite a lot of acorn.js is duplicated here. The alternative was to
+// add a *lot* of extra cruft to that file, making it less readable
+// and slower. Copying and editing the code allowed me to make
+// invasive changes and simplifications without creating a complicated
+// tangle.
+
+import {addLooseExports, defaultOptions} from "../index"
+import {LooseParser, pluginsLoose} from "./state"
+import "./tokenize"
+import "./statement"
+import "./expression"
+
+export {LooseParser, pluginsLoose} from "./state"
+
+defaultOptions.tabSize = 4
+
+export function parse_dammit(input, options) {
+  let p = new LooseParser(input, options)
+  p.next()
+  return p.parseTopLevel()
+}
+
+addLooseExports(parse_dammit, LooseParser, pluginsLoose)

node_modules/acorn/src/loose/parseutil.js

@@ -0,0 +1 @@
+export function isDummy(node) { return node.name == "✖" }

node_modules/acorn/src/loose/state.js

@@ -0,0 +1,161 @@
+import {tokenizer, SourceLocation, tokTypes as tt, Node, lineBreak, isNewLine} from "../index"
+
+// Registered plugins
+export const pluginsLoose = {}
+
+export class LooseParser {
+  constructor(input, options = {}) {
+    this.toks = tokenizer(input, options)
+    this.options = this.toks.options
+    this.input = this.toks.input
+    this.tok = this.last = {type: tt.eof, start: 0, end: 0}
+    if (this.options.locations) {
+      let here = this.toks.curPosition()
+      this.tok.loc = new SourceLocation(this.toks, here, here)
+    }
+    this.ahead = [] // Tokens ahead
+    this.context = [] // Indentation contexted
+    this.curIndent = 0
+    this.curLineStart = 0
+    this.nextLineStart = this.lineEnd(this.curLineStart) + 1
+    this.inAsync = false
+    // Load plugins
+    this.options.pluginsLoose = options.pluginsLoose || {}
+    this.loadPlugins(this.options.pluginsLoose)
+  }
+
+  startNode() {
+    return new Node(this.toks, this.tok.start, this.options.locations ? this.tok.loc.start : null)
+  }
+
+  storeCurrentPos() {
+    return this.options.locations ? [this.tok.start, this.tok.loc.start] : this.tok.start
+  }
+
+  startNodeAt(pos) {
+    if (this.options.locations) {
+      return new Node(this.toks, pos[0], pos[1])
+    } else {
+      return new Node(this.toks, pos)
+    }
+  }
+
+  finishNode(node, type) {
+    node.type = type
+    node.end = this.last.end
+    if (this.options.locations)
+      node.loc.end = this.last.loc.end
+    if (this.options.ranges)
+      node.range[1] = this.last.end
+    return node
+  }
+
+  dummyNode(type) {
+    let dummy = this.startNode()
+    dummy.type = type
+    dummy.end = dummy.start
+    if (this.options.locations)
+      dummy.loc.end = dummy.loc.start
+    if (this.options.ranges)
+      dummy.range[1] = dummy.start
+    this.last = {type: tt.name, start: dummy.start, end: dummy.start, loc: dummy.loc}
+    return dummy
+  }
+
+  dummyIdent() {
+    let dummy = this.dummyNode("Identifier")
+    dummy.name = "✖"
+    return dummy
+  }
+
+  dummyString() {
+    let dummy = this.dummyNode("Literal")
+    dummy.value = dummy.raw = "✖"
+    return dummy
+  }
+
+  eat(type) {
+    if (this.tok.type === type) {
+      this.next()
+      return true
+    } else {
+      return false
+    }
+  }
+
+  isContextual(name) {
+    return this.tok.type === tt.name && this.tok.value === name
+  }
+
+  eatContextual(name) {
+    return this.tok.value === name && this.eat(tt.name)
+  }
+
+  canInsertSemicolon() {
+    return this.tok.type === tt.eof || this.tok.type === tt.braceR ||
+      lineBreak.test(this.input.slice(this.last.end, this.tok.start))
+  }
+
+  semicolon() {
+    return this.eat(tt.semi)
+  }
+
+  expect(type) {
+    if (this.eat(type)) return true
+    for (let i = 1; i <= 2; i++) {
+      if (this.lookAhead(i).type == type) {
+        for (let j = 0; j < i; j++) this.next()
+        return true
+      }
+    }
+  }
+
+  pushCx() {
+    this.context.push(this.curIndent)
+  }
+
+  popCx() {
+    this.curIndent = this.context.pop()
+  }
+
+  lineEnd(pos) {
+    while (pos < this.input.length && !isNewLine(this.input.charCodeAt(pos))) ++pos
+    return pos
+  }
+
+  indentationAfter(pos) {
+    for (let count = 0;; ++pos) {
+      let ch = this.input.charCodeAt(pos)
+      if (ch === 32) ++count
+      else if (ch === 9) count += this.options.tabSize
+      else return count
+    }
+  }
+
+  closes(closeTok, indent, line, blockHeuristic) {
+    if (this.tok.type === closeTok || this.tok.type === tt.eof) return true
+    return line != this.curLineStart && this.curIndent < indent && this.tokenStartsLine() &&
+      (!blockHeuristic || this.nextLineStart >= this.input.length ||
+       this.indentationAfter(this.nextLineStart) < indent)
+  }
+
+  tokenStartsLine() {
+    for (let p = this.tok.start - 1; p >= this.curLineStart; --p) {
+      let ch = this.input.charCodeAt(p)
+      if (ch !== 9 && ch !== 32) return false
+    }
+    return true
+  }
+
+  extend(name, f) {
+    this[name] = f(this[name])
+  }
+
+  loadPlugins(pluginConfigs) {
+    for (let name in pluginConfigs) {
+      let plugin = pluginsLoose[name]
+      if (!plugin) throw new Error("Plugin '" + name + "' not found")
+      plugin(this, pluginConfigs[name])
+    }
+  }
+}

node_modules/acorn/src/loose/statement.js

@@ -0,0 +1,450 @@
+import {LooseParser} from "./state"
+import {isDummy} from "./parseutil"
+import {getLineInfo, tokTypes as tt} from "../index"
+
+const lp = LooseParser.prototype
+
+lp.parseTopLevel = function() {
+  let node = this.startNodeAt(this.options.locations ? [0, getLineInfo(this.input, 0)] : 0)
+  node.body = []
+  while (this.tok.type !== tt.eof) node.body.push(this.parseStatement())
+  this.last = this.tok
+  if (this.options.ecmaVersion >= 6) {
+    node.sourceType = this.options.sourceType
+  }
+  return this.finishNode(node, "Program")
+}
+
+lp.parseStatement = function() {
+  let starttype = this.tok.type, node = this.startNode(), kind
+
+  if (this.toks.isLet()) {
+    starttype = tt._var
+    kind = "let"
+  }
+
+  switch (starttype) {
+  case tt._break: case tt._continue:
+    this.next()
+    let isBreak = starttype === tt._break
+    if (this.semicolon() || this.canInsertSemicolon()) {
+      node.label = null
+    } else {
+      node.label = this.tok.type === tt.name ? this.parseIdent() : null
+      this.semicolon()
+    }
+    return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
+
+  case tt._debugger:
+    this.next()
+    this.semicolon()
+    return this.finishNode(node, "DebuggerStatement")
+
+  case tt._do:
+    this.next()
+    node.body = this.parseStatement()
+    node.test = this.eat(tt._while) ? this.parseParenExpression() : this.dummyIdent()
+    this.semicolon()
+    return this.finishNode(node, "DoWhileStatement")
+
+  case tt._for:
+    this.next()
+    this.pushCx()
+    this.expect(tt.parenL)
+    if (this.tok.type === tt.semi) return this.parseFor(node, null)
+    let isLet = this.toks.isLet()
+    if (isLet || this.tok.type === tt._var || this.tok.type === tt._const) {
+      let init = this.parseVar(true, isLet ? "let" : this.tok.value)
+      if (init.declarations.length === 1 && (this.tok.type === tt._in || this.isContextual("of"))) {
+        return this.parseForIn(node, init)
+      }
+      return this.parseFor(node, init)
+    }
+    let init = this.parseExpression(true)
+    if (this.tok.type === tt._in || this.isContextual("of"))
+      return this.parseForIn(node, this.toAssignable(init))
+    return this.parseFor(node, init)
+
+  case tt._function:
+    this.next()
+    return this.parseFunction(node, true)
+
+  case tt._if:
+    this.next()
+    node.test = this.parseParenExpression()
+    node.consequent = this.parseStatement()
+    node.alternate = this.eat(tt._else) ? this.parseStatement() : null
+    return this.finishNode(node, "IfStatement")
+
+  case tt._return:
+    this.next()
+    if (this.eat(tt.semi) || this.canInsertSemicolon()) node.argument = null
+    else { node.argument = this.parseExpression(); this.semicolon() }
+    return this.finishNode(node, "ReturnStatement")
+
+  case tt._switch:
+    let blockIndent = this.curIndent, line = this.curLineStart
+    this.next()
+    node.discriminant = this.parseParenExpression()
+    node.cases = []
+    this.pushCx()
+    this.expect(tt.braceL)
+
+    let cur
+    while (!this.closes(tt.braceR, blockIndent, line, true)) {
+      if (this.tok.type === tt._case || this.tok.type === tt._default) {
+        let isCase = this.tok.type === tt._case
+        if (cur) this.finishNode(cur, "SwitchCase")
+        node.cases.push(cur = this.startNode())
+        cur.consequent = []
+        this.next()
+        if (isCase) cur.test = this.parseExpression()
+        else cur.test = null
+        this.expect(tt.colon)
+      } else {
+        if (!cur) {
+          node.cases.push(cur = this.startNode())
+          cur.consequent = []
+          cur.test = null
+        }
+        cur.consequent.push(this.parseStatement())
+      }
+    }
+    if (cur) this.finishNode(cur, "SwitchCase")
+    this.popCx()
+    this.eat(tt.braceR)
+    return this.finishNode(node, "SwitchStatement")
+
+  case tt._throw:
+    this.next()
+    node.argument = this.parseExpression()
+    this.semicolon()
+    return this.finishNode(node, "ThrowStatement")
+
+  case tt._try:
+    this.next()
+    node.block = this.parseBlock()
+    node.handler = null
+    if (this.tok.type === tt._catch) {
+      let clause = this.startNode()
+      this.next()
+      this.expect(tt.parenL)
+      clause.param = this.toAssignable(this.parseExprAtom(), true)
+      this.expect(tt.parenR)
+      clause.body = this.parseBlock()
+      node.handler = this.finishNode(clause, "CatchClause")
+    }
+    node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null
+    if (!node.handler && !node.finalizer) return node.block
+    return this.finishNode(node, "TryStatement")
+
+  case tt._var:
+  case tt._const:
+    return this.parseVar(false, kind || this.tok.value)
+
+  case tt._while:
+    this.next()
+    node.test = this.parseParenExpression()
+    node.body = this.parseStatement()
+    return this.finishNode(node, "WhileStatement")
+
+  case tt._with:
+    this.next()
+    node.object = this.parseParenExpression()
+    node.body = this.parseStatement()
+    return this.finishNode(node, "WithStatement")
+
+  case tt.braceL:
+    return this.parseBlock()
+
+  case tt.semi:
+    this.next()
+    return this.finishNode(node, "EmptyStatement")
+
+  case tt._class:
+    return this.parseClass(true)
+
+  case tt._import:
+    return this.parseImport()
+
+  case tt._export:
+    return this.parseExport()
+
+  default:
+    if (this.toks.isAsyncFunction()) {
+      this.next()
+      this.next()
+      return this.parseFunction(node, true, true)
+    }
+    let expr = this.parseExpression()
+    if (isDummy(expr)) {
+      this.next()
+      if (this.tok.type === tt.eof) return this.finishNode(node, "EmptyStatement")
+      return this.parseStatement()
+    } else if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon)) {
+      node.body = this.parseStatement()
+      node.label = expr
+      return this.finishNode(node, "LabeledStatement")
+    } else {
+      node.expression = expr
+      this.semicolon()
+      return this.finishNode(node, "ExpressionStatement")
+    }
+  }
+}
+
+lp.parseBlock = function() {
+  let node = this.startNode()
+  this.pushCx()
+  this.expect(tt.braceL)
+  let blockIndent = this.curIndent, line = this.curLineStart
+  node.body = []
+  while (!this.closes(tt.braceR, blockIndent, line, true))
+    node.body.push(this.parseStatement())
+  this.popCx()
+  this.eat(tt.braceR)
+  return this.finishNode(node, "BlockStatement")
+}
+
+lp.parseFor = function(node, init) {
+  node.init = init
+  node.test = node.update = null
+  if (this.eat(tt.semi) && this.tok.type !== tt.semi) node.test = this.parseExpression()
+  if (this.eat(tt.semi) && this.tok.type !== tt.parenR) node.update = this.parseExpression()
+  this.popCx()
+  this.expect(tt.parenR)
+  node.body = this.parseStatement()
+  return this.finishNode(node, "ForStatement")
+}
+
+lp.parseForIn = function(node, init) {
+  let type = this.tok.type === tt._in ? "ForInStatement" : "ForOfStatement"
+  this.next()
+  node.left = init
+  node.right = this.parseExpression()
+  this.popCx()
+  this.expect(tt.parenR)
+  node.body = this.parseStatement()
+  return this.finishNode(node, type)
+}
+
+lp.parseVar = function(noIn, kind) {
+  let node = this.startNode()
+  node.kind = kind
+  this.next()
+  node.declarations = []
+  do {
+    let decl = this.startNode()
+    decl.id = this.options.ecmaVersion >= 6 ? this.toAssignable(this.parseExprAtom(), true) : this.parseIdent()
+    decl.init = this.eat(tt.eq) ? this.parseMaybeAssign(noIn) : null
+    node.declarations.push(this.finishNode(decl, "VariableDeclarator"))
+  } while (this.eat(tt.comma))
+  if (!node.declarations.length) {
+    let decl = this.startNode()
+    decl.id = this.dummyIdent()
+    node.declarations.push(this.finishNode(decl, "VariableDeclarator"))
+  }
+  if (!noIn) this.semicolon()
+  return this.finishNode(node, "VariableDeclaration")
+}
+
+lp.parseClass = function(isStatement) {
+  let node = this.startNode()
+  this.next()
+  if (isStatement == null) isStatement = this.tok.type === tt.name
+  if (this.tok.type === tt.name) node.id = this.parseIdent()
+  else if (isStatement) node.id = this.dummyIdent()
+  else node.id = null
+  node.superClass = this.eat(tt._extends) ? this.parseExpression() : null
+  node.body = this.startNode()
+  node.body.body = []
+  this.pushCx()
+  let indent = this.curIndent + 1, line = this.curLineStart
+  this.eat(tt.braceL)
+  if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart }
+  while (!this.closes(tt.braceR, indent, line)) {
+    if (this.semicolon()) continue
+    let method = this.startNode(), isGenerator, isAsync
+    if (this.options.ecmaVersion >= 6) {
+      method.static = false
+      isGenerator = this.eat(tt.star)
+    }
+    this.parsePropertyName(method)
+    if (isDummy(method.key)) { if (isDummy(this.parseMaybeAssign())) this.next(); this.eat(tt.comma); continue }
+    if (method.key.type === "Identifier" && !method.computed && method.key.name === "static" &&
+        (this.tok.type != tt.parenL && this.tok.type != tt.braceL)) {
+      method.static = true
+      isGenerator = this.eat(tt.star)
+      this.parsePropertyName(method)
+    } else {
+      method.static = false
+    }
+    if (!method.computed &&
+        method.key.type === "Identifier" && method.key.name === "async" && this.tok.type !== tt.parenL &&
+        !this.canInsertSemicolon()) {
+      this.parsePropertyName(method)
+      isAsync = true
+    } else {
+      isAsync = false
+    }
+    if (this.options.ecmaVersion >= 5 && method.key.type === "Identifier" &&
+        !method.computed && (method.key.name === "get" || method.key.name === "set") &&
+        this.tok.type !== tt.parenL && this.tok.type !== tt.braceL) {
+      method.kind = method.key.name
+      this.parsePropertyName(method)
+      method.value = this.parseMethod(false)
+    } else {
+      if (!method.computed && !method.static && !isGenerator && !isAsync && (
+        method.key.type === "Identifier" && method.key.name === "constructor" ||
+          method.key.type === "Literal" && method.key.value === "constructor")) {
+        method.kind = "constructor"
+      } else {
+        method.kind =  "method"
+      }
+      method.value = this.parseMethod(isGenerator, isAsync)
+    }
+    node.body.body.push(this.finishNode(method, "MethodDefinition"))
+  }
+  this.popCx()
+  if (!this.eat(tt.braceR)) {
+    // If there is no closing brace, make the node span to the start
+    // of the next token (this is useful for Tern)
+    this.last.end = this.tok.start
+    if (this.options.locations) this.last.loc.end = this.tok.loc.start
+  }
+  this.semicolon()
+  this.finishNode(node.body, "ClassBody")
+  return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
+}
+
+lp.parseFunction = function(node, isStatement, isAsync) {
+  let oldInAsync = this.inAsync
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 6) {
+    node.generator = this.eat(tt.star)
+  }
+  if (this.options.ecmaVersion >= 8) {
+    node.async = !!isAsync
+  }
+  if (isStatement == null) isStatement = this.tok.type === tt.name
+  if (this.tok.type === tt.name) node.id = this.parseIdent()
+  else if (isStatement) node.id = this.dummyIdent()
+  this.inAsync = node.async
+  node.params = this.parseFunctionParams()
+  node.body = this.parseBlock()
+  this.inAsync = oldInAsync
+  return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
+}
+
+lp.parseExport = function() {
+  let node = this.startNode()
+  this.next()
+  if (this.eat(tt.star)) {
+    node.source = this.eatContextual("from") ? this.parseExprAtom() : this.dummyString()
+    return this.finishNode(node, "ExportAllDeclaration")
+  }
+  if (this.eat(tt._default)) {
+    // export default (function foo() {}) // This is FunctionExpression.
+    let isAsync
+    if (this.tok.type === tt._function || (isAsync = this.toks.isAsyncFunction())) {
+      let fNode = this.startNode()
+      this.next()
+      if (isAsync) this.next()
+      node.declaration = this.parseFunction(fNode, null, isAsync)
+    } else if (this.tok.type === tt._class) {
+      node.declaration = this.parseClass(null)
+    } else {
+      node.declaration = this.parseMaybeAssign()
+      this.semicolon()
+    }
+    return this.finishNode(node, "ExportDefaultDeclaration")
+  }
+  if (this.tok.type.keyword || this.toks.isLet() || this.toks.isAsyncFunction()) {
+    node.declaration = this.parseStatement()
+    node.specifiers = []
+    node.source = null
+  } else {
+    node.declaration = null
+    node.specifiers = this.parseExportSpecifierList()
+    node.source = this.eatContextual("from") ? this.parseExprAtom() : null
+    this.semicolon()
+  }
+  return this.finishNode(node, "ExportNamedDeclaration")
+}
+
+lp.parseImport = function() {
+  let node = this.startNode()
+  this.next()
+  if (this.tok.type === tt.string) {
+    node.specifiers = []
+    node.source = this.parseExprAtom()
+    node.kind = ''
+  } else {
+    let elt
+    if (this.tok.type === tt.name && this.tok.value !== "from") {
+      elt = this.startNode()
+      elt.local = this.parseIdent()
+      this.finishNode(elt, "ImportDefaultSpecifier")
+      this.eat(tt.comma)
+    }
+    node.specifiers = this.parseImportSpecifierList()
+    node.source = this.eatContextual("from") && this.tok.type == tt.string ? this.parseExprAtom() : this.dummyString()
+    if (elt) node.specifiers.unshift(elt)
+  }
+  this.semicolon()
+  return this.finishNode(node, "ImportDeclaration")
+}
+
+lp.parseImportSpecifierList = function() {
+  let elts = []
+  if (this.tok.type === tt.star) {
+    let elt = this.startNode()
+    this.next()
+    elt.local = this.eatContextual("as") ? this.parseIdent() : this.dummyIdent()
+    elts.push(this.finishNode(elt, "ImportNamespaceSpecifier"))
+  } else {
+    let indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart
+    this.pushCx()
+    this.eat(tt.braceL)
+    if (this.curLineStart > continuedLine) continuedLine = this.curLineStart
+    while (!this.closes(tt.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+      let elt = this.startNode()
+      if (this.eat(tt.star)) {
+        elt.local = this.eatContextual("as") ? this.parseIdent() : this.dummyIdent()
+        this.finishNode(elt, "ImportNamespaceSpecifier")
+      } else {
+        if (this.isContextual("from")) break
+        elt.imported = this.parseIdent()
+        if (isDummy(elt.imported)) break
+        elt.local = this.eatContextual("as") ? this.parseIdent() : elt.imported
+        this.finishNode(elt, "ImportSpecifier")
+      }
+      elts.push(elt)
+      this.eat(tt.comma)
+    }
+    this.eat(tt.braceR)
+    this.popCx()
+  }
+  return elts
+}
+
+lp.parseExportSpecifierList = function() {
+  let elts = []
+  let indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart
+  this.pushCx()
+  this.eat(tt.braceL)
+  if (this.curLineStart > continuedLine) continuedLine = this.curLineStart
+  while (!this.closes(tt.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+    if (this.isContextual("from")) break
+    let elt = this.startNode()
+    elt.local = this.parseIdent()
+    if (isDummy(elt.local)) break
+    elt.exported = this.eatContextual("as") ? this.parseIdent() : elt.local
+    this.finishNode(elt, "ExportSpecifier")
+    elts.push(elt)
+    this.eat(tt.comma)
+  }
+  this.eat(tt.braceR)
+  this.popCx()
+  return elts
+}

node_modules/acorn/src/loose/tokenize.js

@@ -0,0 +1,108 @@
+import {tokTypes as tt, Token, isNewLine, SourceLocation, getLineInfo, lineBreakG} from "../index"
+import {LooseParser} from "./state"
+
+const lp = LooseParser.prototype
+
+function isSpace(ch) {
+  return (ch < 14 && ch > 8) || ch === 32 || ch === 160 || isNewLine(ch)
+}
+
+lp.next = function() {
+  this.last = this.tok
+  if (this.ahead.length)
+    this.tok = this.ahead.shift()
+  else
+    this.tok = this.readToken()
+
+  if (this.tok.start >= this.nextLineStart) {
+    while (this.tok.start >= this.nextLineStart) {
+      this.curLineStart = this.nextLineStart
+      this.nextLineStart = this.lineEnd(this.curLineStart) + 1
+    }
+    this.curIndent = this.indentationAfter(this.curLineStart)
+  }
+}
+
+lp.readToken = function() {
+  for (;;) {
+    try {
+      this.toks.next()
+      if (this.toks.type === tt.dot &&
+          this.input.substr(this.toks.end, 1) === "." &&
+          this.options.ecmaVersion >= 6) {
+        this.toks.end++
+        this.toks.type = tt.ellipsis
+      }
+      return new Token(this.toks)
+    } catch(e) {
+      if (!(e instanceof SyntaxError)) throw e
+
+      // Try to skip some text, based on the error message, and then continue
+      let msg = e.message, pos = e.raisedAt, replace = true
+      if (/unterminated/i.test(msg)) {
+        pos = this.lineEnd(e.pos + 1)
+        if (/string/.test(msg)) {
+          replace = {start: e.pos, end: pos, type: tt.string, value: this.input.slice(e.pos + 1, pos)}
+        } else if (/regular expr/i.test(msg)) {
+          let re = this.input.slice(e.pos, pos)
+          try { re = new RegExp(re) } catch(e) {}
+          replace = {start: e.pos, end: pos, type: tt.regexp, value: re}
+        } else if (/template/.test(msg)) {
+          replace = {start: e.pos, end: pos,
+                     type: tt.template,
+                     value: this.input.slice(e.pos, pos)}
+        } else {
+          replace = false
+        }
+      } else if (/invalid (unicode|regexp|number)|expecting unicode|octal literal|is reserved|directly after number|expected number in radix/i.test(msg)) {
+        while (pos < this.input.length && !isSpace(this.input.charCodeAt(pos))) ++pos
+      } else if (/character escape|expected hexadecimal/i.test(msg)) {
+        while (pos < this.input.length) {
+          let ch = this.input.charCodeAt(pos++)
+          if (ch === 34 || ch === 39 || isNewLine(ch)) break
+        }
+      } else if (/unexpected character/i.test(msg)) {
+        pos++
+        replace = false
+      } else if (/regular expression/i.test(msg)) {
+        replace = true
+      } else {
+        throw e
+      }
+      this.resetTo(pos)
+      if (replace === true) replace = {start: pos, end: pos, type: tt.name, value: "✖"}
+      if (replace) {
+        if (this.options.locations)
+          replace.loc = new SourceLocation(
+            this.toks,
+            getLineInfo(this.input, replace.start),
+            getLineInfo(this.input, replace.end))
+        return replace
+      }
+    }
+  }
+}
+
+lp.resetTo = function(pos) {
+  this.toks.pos = pos
+  let ch = this.input.charAt(pos - 1)
+  this.toks.exprAllowed = !ch || /[\[\{\(,;:?\/*=+\-~!|&%^<>]/.test(ch) ||
+    /[enwfd]/.test(ch) &&
+    /\b(keywords|case|else|return|throw|new|in|(instance|type)of|delete|void)$/.test(this.input.slice(pos - 10, pos))
+
+  if (this.options.locations) {
+    this.toks.curLine = 1
+    this.toks.lineStart = lineBreakG.lastIndex = 0
+    let match
+    while ((match = lineBreakG.exec(this.input)) && match.index < pos) {
+      ++this.toks.curLine
+      this.toks.lineStart = match.index + match[0].length
+    }
+  }
+}
+
+lp.lookAhead = function(n) {
+  while (n > this.ahead.length)
+    this.ahead.push(this.readToken())
+  return this.ahead[n - 1]
+}

node_modules/acorn/src/lval.js

@@ -0,0 +1,219 @@
+import {types as tt} from "./tokentype"
+import {Parser} from "./state"
+import {has} from "./util"
+
+const pp = Parser.prototype
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+pp.toAssignable = function(node, isBinding) {
+  if (this.options.ecmaVersion >= 6 && node) {
+    switch (node.type) {
+      case "Identifier":
+      if (this.inAsync && node.name === "await")
+        this.raise(node.start, "Can not use 'await' as identifier inside an async function")
+      break
+
+    case "ObjectPattern":
+    case "ArrayPattern":
+      break
+
+    case "ObjectExpression":
+      node.type = "ObjectPattern"
+      for (let i = 0; i < node.properties.length; i++) {
+        let prop = node.properties[i]
+        if (prop.kind !== "init") this.raise(prop.key.start, "Object pattern can't contain getter or setter")
+        this.toAssignable(prop.value, isBinding)
+      }
+      break
+
+    case "ArrayExpression":
+      node.type = "ArrayPattern"
+      this.toAssignableList(node.elements, isBinding)
+      break
+
+    case "AssignmentExpression":
+      if (node.operator === "=") {
+        node.type = "AssignmentPattern"
+        delete node.operator
+        this.toAssignable(node.left, isBinding)
+        // falls through to AssignmentPattern
+      } else {
+        this.raise(node.left.end, "Only '=' operator can be used for specifying default value.")
+        break
+      }
+
+    case "AssignmentPattern":
+      break
+
+    case "ParenthesizedExpression":
+      node.expression = this.toAssignable(node.expression, isBinding)
+      break
+
+    case "MemberExpression":
+      if (!isBinding) break
+
+    default:
+      this.raise(node.start, "Assigning to rvalue")
+    }
+  }
+  return node
+}
+
+// Convert list of expression atoms to binding list.
+
+pp.toAssignableList = function(exprList, isBinding) {
+  let end = exprList.length
+  if (end) {
+    let last = exprList[end - 1]
+    if (last && last.type == "RestElement") {
+      --end
+    } else if (last && last.type == "SpreadElement") {
+      last.type = "RestElement"
+      let arg = last.argument
+      this.toAssignable(arg, isBinding)
+      if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern")
+        this.unexpected(arg.start)
+      --end
+    }
+
+    if (isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier")
+      this.unexpected(last.argument.start)
+  }
+  for (let i = 0; i < end; i++) {
+    let elt = exprList[i]
+    if (elt) this.toAssignable(elt, isBinding)
+  }
+  return exprList
+}
+
+// Parses spread element.
+
+pp.parseSpread = function(refDestructuringErrors) {
+  let node = this.startNode()
+  this.next()
+  node.argument = this.parseMaybeAssign(false, refDestructuringErrors)
+  return this.finishNode(node, "SpreadElement")
+}
+
+pp.parseRest = function(allowNonIdent) {
+  let node = this.startNode()
+  this.next()
+
+  // RestElement inside of a function parameter must be an identifier
+  if (allowNonIdent) node.argument = this.type === tt.name ? this.parseIdent() : this.unexpected()
+  else node.argument = this.type === tt.name || this.type === tt.bracketL ? this.parseBindingAtom() : this.unexpected()
+
+  return this.finishNode(node, "RestElement")
+}
+
+// Parses lvalue (assignable) atom.
+
+pp.parseBindingAtom = function() {
+  if (this.options.ecmaVersion < 6) return this.parseIdent()
+  switch (this.type) {
+  case tt.name:
+    return this.parseIdent()
+
+  case tt.bracketL:
+    let node = this.startNode()
+    this.next()
+    node.elements = this.parseBindingList(tt.bracketR, true, true)
+    return this.finishNode(node, "ArrayPattern")
+
+  case tt.braceL:
+    return this.parseObj(true)
+
+  default:
+    this.unexpected()
+  }
+}
+
+pp.parseBindingList = function(close, allowEmpty, allowTrailingComma, allowNonIdent) {
+  let elts = [], first = true
+  while (!this.eat(close)) {
+    if (first) first = false
+    else this.expect(tt.comma)
+    if (allowEmpty && this.type === tt.comma) {
+      elts.push(null)
+    } else if (allowTrailingComma && this.afterTrailingComma(close)) {
+      break
+    } else if (this.type === tt.ellipsis) {
+      let rest = this.parseRest(allowNonIdent)
+      this.parseBindingListItem(rest)
+      elts.push(rest)
+      if (this.type === tt.comma) this.raise(this.start, "Comma is not permitted after the rest element")
+      this.expect(close)
+      break
+    } else {
+      let elem = this.parseMaybeDefault(this.start, this.startLoc)
+      this.parseBindingListItem(elem)
+      elts.push(elem)
+    }
+  }
+  return elts
+}
+
+pp.parseBindingListItem = function(param) {
+  return param
+}
+
+// Parses assignment pattern around given atom if possible.
+
+pp.parseMaybeDefault = function(startPos, startLoc, left) {
+  left = left || this.parseBindingAtom()
+  if (this.options.ecmaVersion < 6 || !this.eat(tt.eq)) return left
+  let node = this.startNodeAt(startPos, startLoc)
+  node.left = left
+  node.right = this.parseMaybeAssign()
+  return this.finishNode(node, "AssignmentPattern")
+}
+
+// Verify that a node is an lval — something that can be assigned
+// to.
+
+pp.checkLVal = function(expr, isBinding, checkClashes) {
+  switch (expr.type) {
+  case "Identifier":
+    if (this.strict && this.reservedWordsStrictBind.test(expr.name))
+      this.raiseRecoverable(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode")
+    if (checkClashes) {
+      if (has(checkClashes, expr.name))
+        this.raiseRecoverable(expr.start, "Argument name clash")
+      checkClashes[expr.name] = true
+    }
+    break
+
+  case "MemberExpression":
+    if (isBinding) this.raiseRecoverable(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression")
+    break
+
+  case "ObjectPattern":
+    for (let i = 0; i < expr.properties.length; i++)
+      this.checkLVal(expr.properties[i].value, isBinding, checkClashes)
+    break
+
+  case "ArrayPattern":
+    for (let i = 0; i < expr.elements.length; i++) {
+      let elem = expr.elements[i]
+      if (elem) this.checkLVal(elem, isBinding, checkClashes)
+    }
+    break
+
+  case "AssignmentPattern":
+    this.checkLVal(expr.left, isBinding, checkClashes)
+    break
+
+  case "RestElement":
+    this.checkLVal(expr.argument, isBinding, checkClashes)
+    break
+
+  case "ParenthesizedExpression":
+    this.checkLVal(expr.expression, isBinding, checkClashes)
+    break
+
+  default:
+    this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue")
+  }
+}

node_modules/acorn/src/node.js

@@ -0,0 +1,50 @@
+import {Parser} from "./state"
+import {SourceLocation} from "./locutil"
+
+export class Node {
+  constructor(parser, pos, loc) {
+    this.type = ""
+    this.start = pos
+    this.end = 0
+    if (parser.options.locations)
+      this.loc = new SourceLocation(parser, loc)
+    if (parser.options.directSourceFile)
+      this.sourceFile = parser.options.directSourceFile
+    if (parser.options.ranges)
+      this.range = [pos, 0]
+  }
+}
+
+// Start an AST node, attaching a start offset.
+
+const pp = Parser.prototype
+
+pp.startNode = function() {
+  return new Node(this, this.start, this.startLoc)
+}
+
+pp.startNodeAt = function(pos, loc) {
+  return new Node(this, pos, loc)
+}
+
+// Finish an AST node, adding `type` and `end` properties.
+
+function finishNodeAt(node, type, pos, loc) {
+  node.type = type
+  node.end = pos
+  if (this.options.locations)
+    node.loc.end = loc
+  if (this.options.ranges)
+    node.range[1] = pos
+  return node
+}
+
+pp.finishNode = function(node, type) {
+  return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
+}
+
+// Finish node at given position
+
+pp.finishNodeAt = function(node, type, pos, loc) {
+  return finishNodeAt.call(this, node, type, pos, loc)
+}

node_modules/acorn/src/options.js

@@ -0,0 +1,128 @@
+import {has, isArray} from "./util"
+import {SourceLocation} from "./locutil"
+
+// A second optional argument can be given to further configure
+// the parser process. These options are recognized:
+
+export const defaultOptions = {
+  // `ecmaVersion` indicates the ECMAScript version to parse. Must
+  // be either 3, 5, 6 (2015), 7 (2016), or 8 (2017). This influences support
+  // for strict mode, the set of reserved words, and support for
+  // new syntax features. The default is 7.
+  ecmaVersion: 7,
+  // `sourceType` indicates the mode the code should be parsed in.
+  // Can be either `"script"` or `"module"`. This influences global
+  // strict mode and parsing of `import` and `export` declarations.
+  sourceType: "script",
+  // `onInsertedSemicolon` can be a callback that will be called
+  // when a semicolon is automatically inserted. It will be passed
+  // th position of the comma as an offset, and if `locations` is
+  // enabled, it is given the location as a `{line, column}` object
+  // as second argument.
+  onInsertedSemicolon: null,
+  // `onTrailingComma` is similar to `onInsertedSemicolon`, but for
+  // trailing commas.
+  onTrailingComma: null,
+  // By default, reserved words are only enforced if ecmaVersion >= 5.
+  // Set `allowReserved` to a boolean value to explicitly turn this on
+  // an off. When this option has the value "never", reserved words
+  // and keywords can also not be used as property names.
+  allowReserved: null,
+  // When enabled, a return at the top level is not considered an
+  // error.
+  allowReturnOutsideFunction: false,
+  // When enabled, import/export statements are not constrained to
+  // appearing at the top of the program.
+  allowImportExportEverywhere: false,
+  // When enabled, hashbang directive in the beginning of file
+  // is allowed and treated as a line comment.
+  allowHashBang: false,
+  // When `locations` is on, `loc` properties holding objects with
+  // `start` and `end` properties in `{line, column}` form (with
+  // line being 1-based and column 0-based) will be attached to the
+  // nodes.
+  locations: false,
+  // A function can be passed as `onToken` option, which will
+  // cause Acorn to call that function with object in the same
+  // format as tokens returned from `tokenizer().getToken()`. Note
+  // that you are not allowed to call the parser from the
+  // callback—that will corrupt its internal state.
+  onToken: null,
+  // A function can be passed as `onComment` option, which will
+  // cause Acorn to call that function with `(block, text, start,
+  // end)` parameters whenever a comment is skipped. `block` is a
+  // boolean indicating whether this is a block (`/* */`) comment,
+  // `text` is the content of the comment, and `start` and `end` are
+  // character offsets that denote the start and end of the comment.
+  // When the `locations` option is on, two more parameters are
+  // passed, the full `{line, column}` locations of the start and
+  // end of the comments. Note that you are not allowed to call the
+  // parser from the callback—that will corrupt its internal state.
+  onComment: null,
+  // Nodes have their start and end characters offsets recorded in
+  // `start` and `end` properties (directly on the node, rather than
+  // the `loc` object, which holds line/column data. To also add a
+  // [semi-standardized][range] `range` property holding a `[start,
+  // end]` array with the same numbers, set the `ranges` option to
+  // `true`.
+  //
+  // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
+  ranges: false,
+  // It is possible to parse multiple files into a single AST by
+  // passing the tree produced by parsing the first file as
+  // `program` option in subsequent parses. This will add the
+  // toplevel forms of the parsed file to the `Program` (top) node
+  // of an existing parse tree.
+  program: null,
+  // When `locations` is on, you can pass this to record the source
+  // file in every node's `loc` object.
+  sourceFile: null,
+  // This value, if given, is stored in every node, whether
+  // `locations` is on or off.
+  directSourceFile: null,
+  // When enabled, parenthesized expressions are represented by
+  // (non-standard) ParenthesizedExpression nodes
+  preserveParens: false,
+  plugins: {}
+}
+
+// Interpret and default an options object
+
+export function getOptions(opts) {
+  let options = {}
+
+  for (let opt in defaultOptions)
+    options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]
+
+  if (options.ecmaVersion >= 2015)
+    options.ecmaVersion -= 2009
+
+  if (options.allowReserved == null)
+    options.allowReserved = options.ecmaVersion < 5
+
+  if (isArray(options.onToken)) {
+    let tokens = options.onToken
+    options.onToken = (token) => tokens.push(token)
+  }
+  if (isArray(options.onComment))
+    options.onComment = pushComment(options, options.onComment)
+
+  return options
+}
+
+function pushComment(options, array) {
+  return function (block, text, start, end, startLoc, endLoc) {
+    let comment = {
+      type: block ? 'Block' : 'Line',
+      value: text,
+      start: start,
+      end: end
+    }
+    if (options.locations)
+      comment.loc = new SourceLocation(this, startLoc, endLoc)
+    if (options.ranges)
+      comment.range = [start, end]
+    array.push(comment)
+  }
+}
+

node_modules/acorn/src/parseutil.js

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+import {types as tt} from "./tokentype"
+import {Parser} from "./state"
+import {lineBreak, skipWhiteSpace} from "./whitespace"
+
+const pp = Parser.prototype
+
+// ## Parser utilities
+
+const literal = /^(?:'((?:[^\']|\.)*)'|"((?:[^\"]|\.)*)"|;)/
+pp.strictDirective = function(start) {
+  for (;;) {
+    skipWhiteSpace.lastIndex = start
+    start += skipWhiteSpace.exec(this.input)[0].length
+    let match = literal.exec(this.input.slice(start))
+    if (!match) return false
+    if ((match[1] || match[2]) == "use strict") return true
+    start += match[0].length
+  }
+}
+
+// Predicate that tests whether the next token is of the given
+// type, and if yes, consumes it as a side effect.
+
+pp.eat = function(type) {
+  if (this.type === type) {
+    this.next()
+    return true
+  } else {
+    return false
+  }
+}
+
+// Tests whether parsed token is a contextual keyword.
+
+pp.isContextual = function(name) {
+  return this.type === tt.name && this.value === name
+}
+
+// Consumes contextual keyword if possible.
+
+pp.eatContextual = function(name) {
+  return this.value === name && this.eat(tt.name)
+}
+
+// Asserts that following token is given contextual keyword.
+
+pp.expectContextual = function(name) {
+  if (!this.eatContextual(name)) this.unexpected()
+}
+
+// Test whether a semicolon can be inserted at the current position.
+
+pp.canInsertSemicolon = function() {
+  return this.type === tt.eof ||
+    this.type === tt.braceR ||
+    lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
+}
+
+pp.insertSemicolon = function() {
+  if (this.canInsertSemicolon()) {
+    if (this.options.onInsertedSemicolon)
+      this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc)
+    return true
+  }
+}
+
+// Consume a semicolon, or, failing that, see if we are allowed to
+// pretend that there is a semicolon at this position.
+
+pp.semicolon = function() {
+  if (!this.eat(tt.semi) && !this.insertSemicolon()) this.unexpected()
+}
+
+pp.afterTrailingComma = function(tokType, notNext) {
+  if (this.type == tokType) {
+    if (this.options.onTrailingComma)
+      this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc)
+    if (!notNext)
+      this.next()
+    return true
+  }
+}
+
+// Expect a token of a given type. If found, consume it, otherwise,
+// raise an unexpected token error.
+
+pp.expect = function(type) {
+  this.eat(type) || this.unexpected()
+}
+
+// Raise an unexpected token error.
+
+pp.unexpected = function(pos) {
+  this.raise(pos != null ? pos : this.start, "Unexpected token")
+}
+
+export class DestructuringErrors {
+  constructor() {
+    this.shorthandAssign = this.trailingComma = this.parenthesizedAssign = this.parenthesizedBind = -1
+  }
+}
+
+pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
+  if (!refDestructuringErrors) return
+  if (refDestructuringErrors.trailingComma > -1)
+    this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element")
+  let parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind
+  if (parens > -1) this.raiseRecoverable(parens, "Parenthesized pattern")
+}
+
+pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
+  let pos = refDestructuringErrors ? refDestructuringErrors.shorthandAssign : -1
+  if (!andThrow) return pos >= 0
+  if (pos > -1) this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns")
+}
+
+pp.checkYieldAwaitInDefaultParams = function() {
+  if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
+    this.raise(this.yieldPos, "Yield expression cannot be a default value")
+  if (this.awaitPos)
+    this.raise(this.awaitPos, "Await expression cannot be a default value")
+}
+
+pp.isSimpleAssignTarget = function(expr) {
+  if (expr.type === "ParenthesizedExpression")
+    return this.isSimpleAssignTarget(expr.expression)
+  return expr.type === "Identifier" || expr.type === "MemberExpression"
+}

node_modules/acorn/src/state.js

@@ -0,0 +1,111 @@
+import {reservedWords, keywords} from "./identifier"
+import {types as tt} from "./tokentype"
+import {lineBreak} from "./whitespace"
+import {getOptions} from "./options"
+
+// Registered plugins
+export const plugins = {}
+
+function keywordRegexp(words) {
+  return new RegExp("^(" + words.replace(/ /g, "|") + ")$")
+}
+
+export class Parser {
+  constructor(options, input, startPos) {
+    this.options = options = getOptions(options)
+    this.sourceFile = options.sourceFile
+    this.keywords = keywordRegexp(keywords[options.ecmaVersion >= 6 ? 6 : 5])
+    let reserved = ""
+    if (!options.allowReserved) {
+      for (let v = options.ecmaVersion;; v--)
+        if (reserved = reservedWords[v]) break
+      if (options.sourceType == "module") reserved += " await"
+    }
+    this.reservedWords = keywordRegexp(reserved)
+    let reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict
+    this.reservedWordsStrict = keywordRegexp(reservedStrict)
+    this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + reservedWords.strictBind)
+    this.input = String(input)
+
+    // Used to signal to callers of `readWord1` whether the word
+    // contained any escape sequences. This is needed because words with
+    // escape sequences must not be interpreted as keywords.
+    this.containsEsc = false
+
+    // Load plugins
+    this.loadPlugins(options.plugins)
+
+    // Set up token state
+
+    // The current position of the tokenizer in the input.
+    if (startPos) {
+      this.pos = startPos
+      this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1
+      this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length
+    } else {
+      this.pos = this.lineStart = 0
+      this.curLine = 1
+    }
+
+    // Properties of the current token:
+    // Its type
+    this.type = tt.eof
+    // For tokens that include more information than their type, the value
+    this.value = null
+    // Its start and end offset
+    this.start = this.end = this.pos
+    // And, if locations are used, the {line, column} object
+    // corresponding to those offsets
+    this.startLoc = this.endLoc = this.curPosition()
+
+    // Position information for the previous token
+    this.lastTokEndLoc = this.lastTokStartLoc = null
+    this.lastTokStart = this.lastTokEnd = this.pos
+
+    // The context stack is used to superficially track syntactic
+    // context to predict whether a regular expression is allowed in a
+    // given position.
+    this.context = this.initialContext()
+    this.exprAllowed = true
+
+    // Figure out if it's a module code.
+    this.inModule = options.sourceType === "module"
+    this.strict = this.inModule || this.strictDirective(this.pos)
+
+    // Used to signify the start of a potential arrow function
+    this.potentialArrowAt = -1
+
+    // Flags to track whether we are in a function, a generator, an async function.
+    this.inFunction = this.inGenerator = this.inAsync = false
+    // Positions to delayed-check that yield/await does not exist in default parameters.
+    this.yieldPos = this.awaitPos = 0
+    // Labels in scope.
+    this.labels = []
+
+    // If enabled, skip leading hashbang line.
+    if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === '#!')
+      this.skipLineComment(2)
+  }
+
+  // DEPRECATED Kept for backwards compatibility until 3.0 in case a plugin uses them
+  isKeyword(word) { return this.keywords.test(word) }
+  isReservedWord(word) { return this.reservedWords.test(word) }
+
+  extend(name, f) {
+    this[name] = f(this[name])
+  }
+
+  loadPlugins(pluginConfigs) {
+    for (let name in pluginConfigs) {
+      let plugin = plugins[name]
+      if (!plugin) throw new Error("Plugin '" + name + "' not found")
+      plugin(this, pluginConfigs[name])
+    }
+  }
+
+  parse() {
+    let node = this.options.program || this.startNode()
+    this.nextToken()
+    return this.parseTopLevel(node)
+  }
+}

node_modules/acorn/src/statement.js

@@ -0,0 +1,744 @@
+import {types as tt} from "./tokentype"
+import {Parser} from "./state"
+import {lineBreak, skipWhiteSpace} from "./whitespace"
+import {isIdentifierStart, isIdentifierChar} from "./identifier"
+import {DestructuringErrors} from "./parseutil"
+
+const pp = Parser.prototype
+
+// ### Statement parsing
+
+// Parse a program. Initializes the parser, reads any number of
+// statements, and wraps them in a Program node.  Optionally takes a
+// `program` argument.  If present, the statements will be appended
+// to its body instead of creating a new node.
+
+pp.parseTopLevel = function(node) {
+  let exports = {}
+  if (!node.body) node.body = []
+  while (this.type !== tt.eof) {
+    let stmt = this.parseStatement(true, true, exports)
+    node.body.push(stmt)
+  }
+  this.next()
+  if (this.options.ecmaVersion >= 6) {
+    node.sourceType = this.options.sourceType
+  }
+  return this.finishNode(node, "Program")
+}
+
+const loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"}
+
+pp.isLet = function() {
+  if (this.type !== tt.name || this.options.ecmaVersion < 6 || this.value != "let") return false
+  skipWhiteSpace.lastIndex = this.pos
+  let skip = skipWhiteSpace.exec(this.input)
+  let next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next)
+  if (nextCh === 91 || nextCh == 123) return true // '{' and '['
+  if (isIdentifierStart(nextCh, true)) {
+    for (var pos = next + 1; isIdentifierChar(this.input.charCodeAt(pos), true); ++pos) {}
+    let ident = this.input.slice(next, pos)
+    if (!this.isKeyword(ident)) return true
+  }
+  return false
+}
+
+// check 'async [no LineTerminator here] function'
+// - 'async /*foo*/ function' is OK.
+// - 'async /*\n*/ function' is invalid.
+pp.isAsyncFunction = function() {
+  if (this.type !== tt.name || this.options.ecmaVersion < 8 || this.value != "async")
+    return false
+
+  skipWhiteSpace.lastIndex = this.pos
+  let skip = skipWhiteSpace.exec(this.input)
+  let next = this.pos + skip[0].length
+  return !lineBreak.test(this.input.slice(this.pos, next)) &&
+    this.input.slice(next, next + 8) === "function" &&
+    (next + 8 == this.input.length || !isIdentifierChar(this.input.charAt(next + 8)))
+}
+
+// Parse a single statement.
+//
+// If expecting a statement and finding a slash operator, parse a
+// regular expression literal. This is to handle cases like
+// `if (foo) /blah/.exec(foo)`, where looking at the previous token
+// does not help.
+
+pp.parseStatement = function(declaration, topLevel, exports) {
+  let starttype = this.type, node = this.startNode(), kind
+
+  if (this.isLet()) {
+    starttype = tt._var
+    kind = "let"
+  }
+
+  // Most types of statements are recognized by the keyword they
+  // start with. Many are trivial to parse, some require a bit of
+  // complexity.
+
+  switch (starttype) {
+  case tt._break: case tt._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
+  case tt._debugger: return this.parseDebuggerStatement(node)
+  case tt._do: return this.parseDoStatement(node)
+  case tt._for: return this.parseForStatement(node)
+  case tt._function:
+    if (!declaration && this.options.ecmaVersion >= 6) this.unexpected()
+    return this.parseFunctionStatement(node, false)
+  case tt._class:
+    if (!declaration) this.unexpected()
+    return this.parseClass(node, true)
+  case tt._if: return this.parseIfStatement(node)
+  case tt._return: return this.parseReturnStatement(node)
+  case tt._switch: return this.parseSwitchStatement(node)
+  case tt._throw: return this.parseThrowStatement(node)
+  case tt._try: return this.parseTryStatement(node)
+  case tt._const: case tt._var:
+    kind = kind || this.value
+    if (!declaration && kind != "var") this.unexpected()
+    return this.parseVarStatement(node, kind)
+  case tt._while: return this.parseWhileStatement(node)
+  case tt._with: return this.parseWithStatement(node)
+  case tt.braceL: return this.parseBlock()
+  case tt.semi: return this.parseEmptyStatement(node)
+  case tt._export:
+  case tt._import:
+    if (!this.options.allowImportExportEverywhere) {
+      if (!topLevel)
+        this.raise(this.start, "'import' and 'export' may only appear at the top level")
+      if (!this.inModule)
+        this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'")
+    }
+    return starttype === tt._import ? this.parseImport(node) : this.parseExport(node, exports)
+
+    // If the statement does not start with a statement keyword or a
+    // brace, it's an ExpressionStatement or LabeledStatement. We
+    // simply start parsing an expression, and afterwards, if the
+    // next token is a colon and the expression was a simple
+    // Identifier node, we switch to interpreting it as a label.
+  default:
+    if (this.isAsyncFunction() && declaration) {
+      this.next()
+      return this.parseFunctionStatement(node, true)
+    }
+
+    let maybeName = this.value, expr = this.parseExpression()
+    if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon))
+      return this.parseLabeledStatement(node, maybeName, expr)
+    else return this.parseExpressionStatement(node, expr)
+  }
+}
+
+pp.parseBreakContinueStatement = function(node, keyword) {
+  let isBreak = keyword == "break"
+  this.next()
+  if (this.eat(tt.semi) || this.insertSemicolon()) node.label = null
+  else if (this.type !== tt.name) this.unexpected()
+  else {
+    node.label = this.parseIdent()
+    this.semicolon()
+  }
+
+  // Verify that there is an actual destination to break or
+  // continue to.
+  for (var i = 0; i < this.labels.length; ++i) {
+    let lab = this.labels[i]
+    if (node.label == null || lab.name === node.label.name) {
+      if (lab.kind != null && (isBreak || lab.kind === "loop")) break
+      if (node.label && isBreak) break
+    }
+  }
+  if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword)
+  return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
+}
+
+pp.parseDebuggerStatement = function(node) {
+  this.next()
+  this.semicolon()
+  return this.finishNode(node, "DebuggerStatement")
+}
+
+pp.parseDoStatement = function(node) {
+  this.next()
+  this.labels.push(loopLabel)
+  node.body = this.parseStatement(false)
+  this.labels.pop()
+  this.expect(tt._while)
+  node.test = this.parseParenExpression()
+  if (this.options.ecmaVersion >= 6)
+    this.eat(tt.semi)
+  else
+    this.semicolon()
+  return this.finishNode(node, "DoWhileStatement")
+}
+
+// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
+// loop is non-trivial. Basically, we have to parse the init `var`
+// statement or expression, disallowing the `in` operator (see
+// the second parameter to `parseExpression`), and then check
+// whether the next token is `in` or `of`. When there is no init
+// part (semicolon immediately after the opening parenthesis), it
+// is a regular `for` loop.
+
+pp.parseForStatement = function(node) {
+  this.next()
+  this.labels.push(loopLabel)
+  this.expect(tt.parenL)
+  if (this.type === tt.semi) return this.parseFor(node, null)
+  let isLet = this.isLet()
+  if (this.type === tt._var || this.type === tt._const || isLet) {
+    let init = this.startNode(), kind = isLet ? "let" : this.value
+    this.next()
+    this.parseVar(init, true, kind)
+    this.finishNode(init, "VariableDeclaration")
+    if ((this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init.declarations.length === 1 &&
+        !(kind !== "var" && init.declarations[0].init))
+      return this.parseForIn(node, init)
+    return this.parseFor(node, init)
+  }
+  let refDestructuringErrors = new DestructuringErrors
+  let init = this.parseExpression(true, refDestructuringErrors)
+  if (this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
+    this.toAssignable(init)
+    this.checkLVal(init)
+    this.checkPatternErrors(refDestructuringErrors, true)
+    return this.parseForIn(node, init)
+  } else {
+    this.checkExpressionErrors(refDestructuringErrors, true)
+  }
+  return this.parseFor(node, init)
+}
+
+pp.parseFunctionStatement = function(node, isAsync) {
+  this.next()
+  return this.parseFunction(node, true, false, isAsync)
+}
+
+pp.isFunction = function() {
+  return this.type === tt._function || this.isAsyncFunction()
+}
+
+pp.parseIfStatement = function(node) {
+  this.next()
+  node.test = this.parseParenExpression()
+  // allow function declarations in branches, but only in non-strict mode
+  node.consequent = this.parseStatement(!this.strict && this.isFunction())
+  node.alternate = this.eat(tt._else) ? this.parseStatement(!this.strict && this.isFunction()) : null
+  return this.finishNode(node, "IfStatement")
+}
+
+pp.parseReturnStatement = function(node) {
+  if (!this.inFunction && !this.options.allowReturnOutsideFunction)
+    this.raise(this.start, "'return' outside of function")
+  this.next()
+
+  // In `return` (and `break`/`continue`), the keywords with
+  // optional arguments, we eagerly look for a semicolon or the
+  // possibility to insert one.
+
+  if (this.eat(tt.semi) || this.insertSemicolon()) node.argument = null
+  else { node.argument = this.parseExpression(); this.semicolon() }
+  return this.finishNode(node, "ReturnStatement")
+}
+
+pp.parseSwitchStatement = function(node) {
+  this.next()
+  node.discriminant = this.parseParenExpression()
+  node.cases = []
+  this.expect(tt.braceL)
+  this.labels.push(switchLabel)
+
+  // Statements under must be grouped (by label) in SwitchCase
+  // nodes. `cur` is used to keep the node that we are currently
+  // adding statements to.
+
+  for (var cur, sawDefault = false; this.type != tt.braceR;) {
+    if (this.type === tt._case || this.type === tt._default) {
+      let isCase = this.type === tt._case
+      if (cur) this.finishNode(cur, "SwitchCase")
+      node.cases.push(cur = this.startNode())
+      cur.consequent = []
+      this.next()
+      if (isCase) {
+        cur.test = this.parseExpression()
+      } else {
+        if (sawDefault) this.raiseRecoverable(this.lastTokStart, "Multiple default clauses")
+        sawDefault = true
+        cur.test = null
+      }
+      this.expect(tt.colon)
+    } else {
+      if (!cur) this.unexpected()
+      cur.consequent.push(this.parseStatement(true))
+    }
+  }
+  if (cur) this.finishNode(cur, "SwitchCase")
+  this.next() // Closing brace
+  this.labels.pop()
+  return this.finishNode(node, "SwitchStatement")
+}
+
+pp.parseThrowStatement = function(node) {
+  this.next()
+  if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
+    this.raise(this.lastTokEnd, "Illegal newline after throw")
+  node.argument = this.parseExpression()
+  this.semicolon()
+  return this.finishNode(node, "ThrowStatement")
+}
+
+// Reused empty array added for node fields that are always empty.
+
+const empty = []
+
+pp.parseTryStatement = function(node) {
+  this.next()
+  node.block = this.parseBlock()
+  node.handler = null
+  if (this.type === tt._catch) {
+    let clause = this.startNode()
+    this.next()
+    this.expect(tt.parenL)
+    clause.param = this.parseBindingAtom()
+    this.checkLVal(clause.param, true)
+    this.expect(tt.parenR)
+    clause.body = this.parseBlock()
+    node.handler = this.finishNode(clause, "CatchClause")
+  }
+  node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null
+  if (!node.handler && !node.finalizer)
+    this.raise(node.start, "Missing catch or finally clause")
+  return this.finishNode(node, "TryStatement")
+}
+
+pp.parseVarStatement = function(node, kind) {
+  this.next()
+  this.parseVar(node, false, kind)
+  this.semicolon()
+  return this.finishNode(node, "VariableDeclaration")
+}
+
+pp.parseWhileStatement = function(node) {
+  this.next()
+  node.test = this.parseParenExpression()
+  this.labels.push(loopLabel)
+  node.body = this.parseStatement(false)
+  this.labels.pop()
+  return this.finishNode(node, "WhileStatement")
+}
+
+pp.parseWithStatement = function(node) {
+  if (this.strict) this.raise(this.start, "'with' in strict mode")
+  this.next()
+  node.object = this.parseParenExpression()
+  node.body = this.parseStatement(false)
+  return this.finishNode(node, "WithStatement")
+}
+
+pp.parseEmptyStatement = function(node) {
+  this.next()
+  return this.finishNode(node, "EmptyStatement")
+}
+
+pp.parseLabeledStatement = function(node, maybeName, expr) {
+  for (let i = 0; i < this.labels.length; ++i)
+    if (this.labels[i].name === maybeName) this.raise(expr.start, "Label '" + maybeName + "' is already declared")
+  let kind = this.type.isLoop ? "loop" : this.type === tt._switch ? "switch" : null
+  for (let i = this.labels.length - 1; i >= 0; i--) {
+    let label = this.labels[i]
+    if (label.statementStart == node.start) {
+      label.statementStart = this.start
+      label.kind = kind
+    } else break
+  }
+  this.labels.push({name: maybeName, kind: kind, statementStart: this.start})
+  node.body = this.parseStatement(true)
+  if (node.body.type == "ClassDeclaration" ||
+      node.body.type == "VariableDeclaration" && (this.strict || node.body.kind != "var") ||
+      node.body.type == "FunctionDeclaration" && (this.strict || node.body.generator))
+    this.raiseRecoverable(node.body.start, "Invalid labeled declaration")
+  this.labels.pop()
+  node.label = expr
+  return this.finishNode(node, "LabeledStatement")
+}
+
+pp.parseExpressionStatement = function(node, expr) {
+  node.expression = expr
+  this.semicolon()
+  return this.finishNode(node, "ExpressionStatement")
+}
+
+// Parse a semicolon-enclosed block of statements, handling `"use
+// strict"` declarations when `allowStrict` is true (used for
+// function bodies).
+
+pp.parseBlock = function() {
+  let node = this.startNode()
+  node.body = []
+  this.expect(tt.braceL)
+  while (!this.eat(tt.braceR)) {
+    let stmt = this.parseStatement(true)
+    node.body.push(stmt)
+  }
+  return this.finishNode(node, "BlockStatement")
+}
+
+// Parse a regular `for` loop. The disambiguation code in
+// `parseStatement` will already have parsed the init statement or
+// expression.
+
+pp.parseFor = function(node, init) {
+  node.init = init
+  this.expect(tt.semi)
+  node.test = this.type === tt.semi ? null : this.parseExpression()
+  this.expect(tt.semi)
+  node.update = this.type === tt.parenR ? null : this.parseExpression()
+  this.expect(tt.parenR)
+  node.body = this.parseStatement(false)
+  this.labels.pop()
+  return this.finishNode(node, "ForStatement")
+}
+
+// Parse a `for`/`in` and `for`/`of` loop, which are almost
+// same from parser's perspective.
+
+pp.parseForIn = function(node, init) {
+  let type = this.type === tt._in ? "ForInStatement" : "ForOfStatement"
+  this.next()
+  node.left = init
+  node.right = this.parseExpression()
+  this.expect(tt.parenR)
+  node.body = this.parseStatement(false)
+  this.labels.pop()
+  return this.finishNode(node, type)
+}
+
+// Parse a list of variable declarations.
+
+pp.parseVar = function(node, isFor, kind) {
+  node.declarations = []
+  node.kind = kind
+  for (;;) {
+    let decl = this.startNode()
+    this.parseVarId(decl)
+    if (this.eat(tt.eq)) {
+      decl.init = this.parseMaybeAssign(isFor)
+    } else if (kind === "const" && !(this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) {
+      this.unexpected()
+    } else if (decl.id.type != "Identifier" && !(isFor && (this.type === tt._in || this.isContextual("of")))) {
+      this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value")
+    } else {
+      decl.init = null
+    }
+    node.declarations.push(this.finishNode(decl, "VariableDeclarator"))
+    if (!this.eat(tt.comma)) break
+  }
+  return node
+}
+
+pp.parseVarId = function(decl) {
+  decl.id = this.parseBindingAtom()
+  this.checkLVal(decl.id, true)
+}
+
+// Parse a function declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp.parseFunction = function(node, isStatement, allowExpressionBody, isAsync) {
+  this.initFunction(node)
+  if (this.options.ecmaVersion >= 6 && !isAsync)
+    node.generator = this.eat(tt.star)
+  if (this.options.ecmaVersion >= 8)
+    node.async = !!isAsync
+
+  if (isStatement == null)
+    isStatement = this.type == tt.name
+  if (isStatement)
+    node.id = this.parseIdent()
+
+  let oldInGen = this.inGenerator, oldInAsync = this.inAsync,
+      oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction
+  this.inGenerator = node.generator
+  this.inAsync = node.async
+  this.yieldPos = 0
+  this.awaitPos = 0
+  this.inFunction = true
+
+  if (!isStatement && this.type === tt.name)
+    node.id = this.parseIdent()
+  this.parseFunctionParams(node)
+  this.parseFunctionBody(node, allowExpressionBody)
+
+  this.inGenerator = oldInGen
+  this.inAsync = oldInAsync
+  this.yieldPos = oldYieldPos
+  this.awaitPos = oldAwaitPos
+  this.inFunction = oldInFunc
+  return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
+}
+
+pp.parseFunctionParams = function(node) {
+  this.expect(tt.parenL)
+  node.params = this.parseBindingList(tt.parenR, false, this.options.ecmaVersion >= 8, true)
+  this.checkYieldAwaitInDefaultParams()
+}
+
+// Parse a class declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp.parseClass = function(node, isStatement) {
+  this.next()
+  if (isStatement == null) isStatement = this.type === tt.name
+  this.parseClassId(node, isStatement)
+  this.parseClassSuper(node)
+  let classBody = this.startNode()
+  let hadConstructor = false
+  classBody.body = []
+  this.expect(tt.braceL)
+  while (!this.eat(tt.braceR)) {
+    if (this.eat(tt.semi)) continue
+    let method = this.startNode()
+    let isGenerator = this.eat(tt.star)
+    let isAsync = false
+    let isMaybeStatic = this.type === tt.name && this.value === "static"
+    this.parsePropertyName(method)
+    method.static = isMaybeStatic && this.type !== tt.parenL
+    if (method.static) {
+      if (isGenerator) this.unexpected()
+      isGenerator = this.eat(tt.star)
+      this.parsePropertyName(method)
+    }
+    if (this.options.ecmaVersion >= 8 && !isGenerator && !method.computed &&
+        method.key.type === "Identifier" && method.key.name === "async" && this.type !== tt.parenL &&
+        !this.canInsertSemicolon()) {
+      isAsync = true
+      this.parsePropertyName(method)
+    }
+    method.kind = "method"
+    let isGetSet = false
+    if (!method.computed) {
+      let {key} = method
+      if (!isGenerator && !isAsync && key.type === "Identifier" && this.type !== tt.parenL && (key.name === "get" || key.name === "set")) {
+        isGetSet = true
+        method.kind = key.name
+        key = this.parsePropertyName(method)
+      }
+      if (!method.static && (key.type === "Identifier" && key.name === "constructor" ||
+          key.type === "Literal" && key.value === "constructor")) {
+        if (hadConstructor) this.raise(key.start, "Duplicate constructor in the same class")
+        if (isGetSet) this.raise(key.start, "Constructor can't have get/set modifier")
+        if (isGenerator) this.raise(key.start, "Constructor can't be a generator")
+        if (isAsync) this.raise(key.start, "Constructor can't be an async method")
+        method.kind = "constructor"
+        hadConstructor = true
+      }
+    }
+    this.parseClassMethod(classBody, method, isGenerator, isAsync)
+    if (isGetSet) {
+      let paramCount = method.kind === "get" ? 0 : 1
+      if (method.value.params.length !== paramCount) {
+        let start = method.value.start
+        if (method.kind === "get")
+          this.raiseRecoverable(start, "getter should have no params")
+        else
+          this.raiseRecoverable(start, "setter should have exactly one param")
+      } else {
+        if (method.kind === "set" && method.value.params[0].type === "RestElement")
+          this.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params")
+      }
+    }
+  }
+  node.body = this.finishNode(classBody, "ClassBody")
+  return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
+}
+
+pp.parseClassMethod = function(classBody, method, isGenerator, isAsync) {
+  method.value = this.parseMethod(isGenerator, isAsync)
+  classBody.body.push(this.finishNode(method, "MethodDefinition"))
+}
+
+pp.parseClassId = function(node, isStatement) {
+  node.id = this.type === tt.name ? this.parseIdent() : isStatement ? this.unexpected() : null
+}
+
+pp.parseClassSuper = function(node) {
+  node.superClass = this.eat(tt._extends) ? this.parseExprSubscripts() : null
+}
+
+// Parses module export declaration.
+
+pp.parseExport = function(node, exports) {
+  this.next()
+  // export * from '...'
+  if (this.eat(tt.star)) {
+    this.expectContextual("from")
+    node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+    this.semicolon()
+    return this.finishNode(node, "ExportAllDeclaration")
+  }
+  if (this.eat(tt._default)) { // export default ...
+    this.checkExport(exports, "default", this.lastTokStart)
+    let isAsync
+    if (this.type === tt._function || (isAsync = this.isAsyncFunction())) {
+      let fNode = this.startNode()
+      this.next()
+      if (isAsync) this.next()
+      node.declaration = this.parseFunction(fNode, null, false, isAsync)
+    } else if (this.type === tt._class) {
+      let cNode = this.startNode()
+      node.declaration = this.parseClass(cNode, null)
+    } else {
+      node.declaration = this.parseMaybeAssign()
+      this.semicolon()
+    }
+    return this.finishNode(node, "ExportDefaultDeclaration")
+  }
+  // export var|const|let|function|class ...
+  if (this.shouldParseExportStatement()) {
+    node.declaration = this.parseStatement(true)
+    if (node.declaration.type === "VariableDeclaration")
+      this.checkVariableExport(exports, node.declaration.declarations)
+    else
+      this.checkExport(exports, node.declaration.id.name, node.declaration.id.start)
+    node.specifiers = []
+    node.source = null
+  } else { // export { x, y as z } [from '...']
+    node.declaration = null
+    node.specifiers = this.parseExportSpecifiers(exports)
+    if (this.eatContextual("from")) {
+      node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+    } else {
+      // check for keywords used as local names
+      for (let i = 0; i < node.specifiers.length; i++) {
+        if (this.keywords.test(node.specifiers[i].local.name) || this.reservedWords.test(node.specifiers[i].local.name)) {
+          this.unexpected(node.specifiers[i].local.start)
+        }
+      }
+
+      node.source = null
+    }
+    this.semicolon()
+  }
+  return this.finishNode(node, "ExportNamedDeclaration")
+}
+
+pp.checkExport = function(exports, name, pos) {
+  if (!exports) return
+  if (Object.prototype.hasOwnProperty.call(exports, name))
+    this.raiseRecoverable(pos, "Duplicate export '" + name + "'")
+  exports[name] = true
+}
+
+pp.checkPatternExport = function(exports, pat) {
+  let type = pat.type
+  if (type == "Identifier")
+    this.checkExport(exports, pat.name, pat.start)
+  else if (type == "ObjectPattern")
+    for (let i = 0; i < pat.properties.length; ++i)
+      this.checkPatternExport(exports, pat.properties[i].value)
+  else if (type == "ArrayPattern")
+    for (let i = 0; i < pat.elements.length; ++i) {
+      let elt = pat.elements[i]
+      if (elt) this.checkPatternExport(exports, elt)
+    }
+  else if (type == "AssignmentPattern")
+    this.checkPatternExport(exports, pat.left)
+  else if (type == "ParenthesizedExpression")
+    this.checkPatternExport(exports, pat.expression)
+}
+
+pp.checkVariableExport = function(exports, decls) {
+  if (!exports) return
+  for (let i = 0; i < decls.length; i++)
+    this.checkPatternExport(exports, decls[i].id)
+}
+
+pp.shouldParseExportStatement = function() {
+  return this.type.keyword === "var"
+    || this.type.keyword === "const"
+    || this.type.keyword === "class"
+    || this.type.keyword === "function"
+    || this.isLet()
+    || this.isAsyncFunction()
+}
+
+// Parses a comma-separated list of module exports.
+
+pp.parseExportSpecifiers = function(exports) {
+  let nodes = [], first = true
+  // export { x, y as z } [from '...']
+  this.expect(tt.braceL)
+  while (!this.eat(tt.braceR)) {
+    if (!first) {
+      this.expect(tt.comma)
+      if (this.afterTrailingComma(tt.braceR)) break
+    } else first = false
+
+    let node = this.startNode()
+    node.local = this.parseIdent(true)
+    node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local
+    this.checkExport(exports, node.exported.name, node.exported.start)
+    nodes.push(this.finishNode(node, "ExportSpecifier"))
+  }
+  return nodes
+}
+
+// Parses import declaration.
+
+pp.parseImport = function(node) {
+  this.next()
+  // import '...'
+  if (this.type === tt.string) {
+    node.specifiers = empty
+    node.source = this.parseExprAtom()
+  } else {
+    node.specifiers = this.parseImportSpecifiers()
+    this.expectContextual("from")
+    node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+  }
+  this.semicolon()
+  return this.finishNode(node, "ImportDeclaration")
+}
+
+// Parses a comma-separated list of module imports.
+
+pp.parseImportSpecifiers = function() {
+  let nodes = [], first = true
+  if (this.type === tt.name) {
+    // import defaultObj, { x, y as z } from '...'
+    let node = this.startNode()
+    node.local = this.parseIdent()
+    this.checkLVal(node.local, true)
+    nodes.push(this.finishNode(node, "ImportDefaultSpecifier"))
+    if (!this.eat(tt.comma)) return nodes
+  }
+  if (this.type === tt.star) {
+    let node = this.startNode()
+    this.next()
+    this.expectContextual("as")
+    node.local = this.parseIdent()
+    this.checkLVal(node.local, true)
+    nodes.push(this.finishNode(node, "ImportNamespaceSpecifier"))
+    return nodes
+  }
+  this.expect(tt.braceL)
+  while (!this.eat(tt.braceR)) {
+    if (!first) {
+      this.expect(tt.comma)
+      if (this.afterTrailingComma(tt.braceR)) break
+    } else first = false
+
+    let node = this.startNode()
+    node.imported = this.parseIdent(true)
+    if (this.eatContextual("as")) {
+      node.local = this.parseIdent()
+    } else {
+      node.local = node.imported
+      if (this.isKeyword(node.local.name)) this.unexpected(node.local.start)
+      if (this.reservedWordsStrict.test(node.local.name)) this.raiseRecoverable(node.local.start, "The keyword '" + node.local.name + "' is reserved")
+    }
+    this.checkLVal(node.local, true)
+    nodes.push(this.finishNode(node, "ImportSpecifier"))
+  }
+  return nodes
+}

node_modules/acorn/src/tokencontext.js

@@ -0,0 +1,110 @@
+// The algorithm used to determine whether a regexp can appear at a
+// given point in the program is loosely based on sweet.js' approach.
+// See https://github.com/mozilla/sweet.js/wiki/design
+
+import {Parser} from "./state"
+import {types as tt} from "./tokentype"
+import {lineBreak} from "./whitespace"
+
+export class TokContext {
+  constructor(token, isExpr, preserveSpace, override) {
+    this.token = token
+    this.isExpr = !!isExpr
+    this.preserveSpace = !!preserveSpace
+    this.override = override
+  }
+}
+
+export const types = {
+  b_stat: new TokContext("{", false),
+  b_expr: new TokContext("{", true),
+  b_tmpl: new TokContext("${", true),
+  p_stat: new TokContext("(", false),
+  p_expr: new TokContext("(", true),
+  q_tmpl: new TokContext("`", true, true, p => p.readTmplToken()),
+  f_expr: new TokContext("function", true)
+}
+
+const pp = Parser.prototype
+
+pp.initialContext = function() {
+  return [types.b_stat]
+}
+
+pp.braceIsBlock = function(prevType) {
+  if (prevType === tt.colon) {
+    let parent = this.curContext()
+    if (parent === types.b_stat || parent === types.b_expr)
+      return !parent.isExpr
+  }
+  if (prevType === tt._return)
+    return lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
+  if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof || prevType === tt.parenR)
+    return true
+  if (prevType == tt.braceL)
+    return this.curContext() === types.b_stat
+  return !this.exprAllowed
+}
+
+pp.updateContext = function(prevType) {
+  let update, type = this.type
+  if (type.keyword && prevType == tt.dot)
+    this.exprAllowed = false
+  else if (update = type.updateContext)
+    update.call(this, prevType)
+  else
+    this.exprAllowed = type.beforeExpr
+}
+
+// Token-specific context update code
+
+tt.parenR.updateContext = tt.braceR.updateContext = function() {
+  if (this.context.length == 1) {
+    this.exprAllowed = true
+    return
+  }
+  let out = this.context.pop()
+  if (out === types.b_stat && this.curContext() === types.f_expr) {
+    this.context.pop()
+    this.exprAllowed = false
+  } else if (out === types.b_tmpl) {
+    this.exprAllowed = true
+  } else {
+    this.exprAllowed = !out.isExpr
+  }
+}
+
+tt.braceL.updateContext = function(prevType) {
+  this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr)
+  this.exprAllowed = true
+}
+
+tt.dollarBraceL.updateContext = function() {
+  this.context.push(types.b_tmpl)
+  this.exprAllowed = true
+}
+
+tt.parenL.updateContext = function(prevType) {
+  let statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while
+  this.context.push(statementParens ? types.p_stat : types.p_expr)
+  this.exprAllowed = true
+}
+
+tt.incDec.updateContext = function() {
+  // tokExprAllowed stays unchanged
+}
+
+tt._function.updateContext = function(prevType) {
+  if (prevType.beforeExpr && prevType !== tt.semi && prevType !== tt._else &&
+      !((prevType === tt.colon || prevType === tt.braceL) && this.curContext() === types.b_stat))
+    this.context.push(types.f_expr)
+  this.exprAllowed = false
+}
+
+tt.backQuote.updateContext = function() {
+  if (this.curContext() === types.q_tmpl)
+    this.context.pop()
+  else
+    this.context.push(types.q_tmpl)
+  this.exprAllowed = false
+}

node_modules/acorn/src/tokenize.js

@@ -0,0 +1,686 @@
+import {isIdentifierStart, isIdentifierChar} from "./identifier"
+import {types as tt, keywords as keywordTypes} from "./tokentype"
+import {Parser} from "./state"
+import {SourceLocation} from "./locutil"
+import {lineBreak, lineBreakG, isNewLine, nonASCIIwhitespace} from "./whitespace"
+
+// Object type used to represent tokens. Note that normally, tokens
+// simply exist as properties on the parser object. This is only
+// used for the onToken callback and the external tokenizer.
+
+export class Token {
+  constructor(p) {
+    this.type = p.type
+    this.value = p.value
+    this.start = p.start
+    this.end = p.end
+    if (p.options.locations)
+      this.loc = new SourceLocation(p, p.startLoc, p.endLoc)
+    if (p.options.ranges)
+      this.range = [p.start, p.end]
+  }
+}
+
+// ## Tokenizer
+
+const pp = Parser.prototype
+
+// Are we running under Rhino?
+const isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]"
+
+// Move to the next token
+
+pp.next = function() {
+  if (this.options.onToken)
+    this.options.onToken(new Token(this))
+
+  this.lastTokEnd = this.end
+  this.lastTokStart = this.start
+  this.lastTokEndLoc = this.endLoc
+  this.lastTokStartLoc = this.startLoc
+  this.nextToken()
+}
+
+pp.getToken = function() {
+  this.next()
+  return new Token(this)
+}
+
+// If we're in an ES6 environment, make parsers iterable
+if (typeof Symbol !== "undefined")
+  pp[Symbol.iterator] = function () {
+    let self = this
+    return {next: function () {
+      let token = self.getToken()
+      return {
+        done: token.type === tt.eof,
+        value: token
+      }
+    }}
+  }
+
+// Toggle strict mode. Re-reads the next number or string to please
+// pedantic tests (`"use strict"; 010;` should fail).
+
+pp.curContext = function() {
+  return this.context[this.context.length - 1]
+}
+
+// Read a single token, updating the parser object's token-related
+// properties.
+
+pp.nextToken = function() {
+  let curContext = this.curContext()
+  if (!curContext || !curContext.preserveSpace) this.skipSpace()
+
+  this.start = this.pos
+  if (this.options.locations) this.startLoc = this.curPosition()
+  if (this.pos >= this.input.length) return this.finishToken(tt.eof)
+
+  if (curContext.override) return curContext.override(this)
+  else this.readToken(this.fullCharCodeAtPos())
+}
+
+pp.readToken = function(code) {
+  // Identifier or keyword. '\uXXXX' sequences are allowed in
+  // identifiers, so '\' also dispatches to that.
+  if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
+    return this.readWord()
+
+  return this.getTokenFromCode(code)
+}
+
+pp.fullCharCodeAtPos = function() {
+  let code = this.input.charCodeAt(this.pos)
+  if (code <= 0xd7ff || code >= 0xe000) return code
+  let next = this.input.charCodeAt(this.pos + 1)
+  return (code << 10) + next - 0x35fdc00
+}
+
+pp.skipBlockComment = function() {
+  let startLoc = this.options.onComment && this.curPosition()
+  let start = this.pos, end = this.input.indexOf("*/", this.pos += 2)
+  if (end === -1) this.raise(this.pos - 2, "Unterminated comment")
+  this.pos = end + 2
+  if (this.options.locations) {
+    lineBreakG.lastIndex = start
+    let match
+    while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
+      ++this.curLine
+      this.lineStart = match.index + match[0].length
+    }
+  }
+  if (this.options.onComment)
+    this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,
+                           startLoc, this.curPosition())
+}
+
+pp.skipLineComment = function(startSkip) {
+  let start = this.pos
+  let startLoc = this.options.onComment && this.curPosition()
+  let ch = this.input.charCodeAt(this.pos+=startSkip)
+  while (this.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {
+    ++this.pos
+    ch = this.input.charCodeAt(this.pos)
+  }
+  if (this.options.onComment)
+    this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,
+                           startLoc, this.curPosition())
+}
+
+// Called at the start of the parse and after every token. Skips
+// whitespace and comments, and.
+
+pp.skipSpace = function() {
+  loop: while (this.pos < this.input.length) {
+    let ch = this.input.charCodeAt(this.pos)
+    switch (ch) {
+      case 32: case 160: // ' '
+        ++this.pos
+        break
+      case 13:
+        if (this.input.charCodeAt(this.pos + 1) === 10) {
+          ++this.pos
+        }
+      case 10: case 8232: case 8233:
+        ++this.pos
+        if (this.options.locations) {
+          ++this.curLine
+          this.lineStart = this.pos
+        }
+        break
+      case 47: // '/'
+        switch (this.input.charCodeAt(this.pos + 1)) {
+          case 42: // '*'
+            this.skipBlockComment()
+            break
+          case 47:
+            this.skipLineComment(2)
+            break
+          default:
+            break loop
+        }
+        break
+      default:
+        if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
+          ++this.pos
+        } else {
+          break loop
+        }
+    }
+  }
+}
+
+// Called at the end of every token. Sets `end`, `val`, and
+// maintains `context` and `exprAllowed`, and skips the space after
+// the token, so that the next one's `start` will point at the
+// right position.
+
+pp.finishToken = function(type, val) {
+  this.end = this.pos
+  if (this.options.locations) this.endLoc = this.curPosition()
+  let prevType = this.type
+  this.type = type
+  this.value = val
+
+  this.updateContext(prevType)
+}
+
+// ### Token reading
+
+// This is the function that is called to fetch the next token. It
+// is somewhat obscure, because it works in character codes rather
+// than characters, and because operator parsing has been inlined
+// into it.
+//
+// All in the name of speed.
+//
+pp.readToken_dot = function() {
+  let next = this.input.charCodeAt(this.pos + 1)
+  if (next >= 48 && next <= 57) return this.readNumber(true)
+  let next2 = this.input.charCodeAt(this.pos + 2)
+  if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
+    this.pos += 3
+    return this.finishToken(tt.ellipsis)
+  } else {
+    ++this.pos
+    return this.finishToken(tt.dot)
+  }
+}
+
+pp.readToken_slash = function() { // '/'
+  let next = this.input.charCodeAt(this.pos + 1)
+  if (this.exprAllowed) {++this.pos; return this.readRegexp()}
+  if (next === 61) return this.finishOp(tt.assign, 2)
+  return this.finishOp(tt.slash, 1)
+}
+
+pp.readToken_mult_modulo_exp = function(code) { // '%*'
+  let next = this.input.charCodeAt(this.pos + 1)
+  let size = 1
+  let tokentype = code === 42 ? tt.star : tt.modulo
+
+  // exponentiation operator ** and **=
+  if (this.options.ecmaVersion >= 7 && next === 42) {
+    ++size
+    tokentype = tt.starstar
+    next = this.input.charCodeAt(this.pos + 2)
+  }
+
+  if (next === 61) return this.finishOp(tt.assign, size + 1)
+  return this.finishOp(tokentype, size)
+}
+
+pp.readToken_pipe_amp = function(code) { // '|&'
+  let next = this.input.charCodeAt(this.pos + 1)
+  if (next === code) return this.finishOp(code === 124 ? tt.logicalOR : tt.logicalAND, 2)
+  if (next === 61) return this.finishOp(tt.assign, 2)
+  return this.finishOp(code === 124 ? tt.bitwiseOR : tt.bitwiseAND, 1)
+}
+
+pp.readToken_caret = function() { // '^'
+  let next = this.input.charCodeAt(this.pos + 1)
+  if (next === 61) return this.finishOp(tt.assign, 2)
+  return this.finishOp(tt.bitwiseXOR, 1)
+}
+
+pp.readToken_plus_min = function(code) { // '+-'
+  let next = this.input.charCodeAt(this.pos + 1)
+  if (next === code) {
+    if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 &&
+        lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) {
+      // A `-->` line comment
+      this.skipLineComment(3)
+      this.skipSpace()
+      return this.nextToken()
+    }
+    return this.finishOp(tt.incDec, 2)
+  }
+  if (next === 61) return this.finishOp(tt.assign, 2)
+  return this.finishOp(tt.plusMin, 1)
+}
+
+pp.readToken_lt_gt = function(code) { // '<>'
+  let next = this.input.charCodeAt(this.pos + 1)
+  let size = 1
+  if (next === code) {
+    size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2
+    if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1)
+    return this.finishOp(tt.bitShift, size)
+  }
+  if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 &&
+      this.input.charCodeAt(this.pos + 3) == 45) {
+    if (this.inModule) this.unexpected()
+    // `<!--`, an XML-style comment that should be interpreted as a line comment
+    this.skipLineComment(4)
+    this.skipSpace()
+    return this.nextToken()
+  }
+  if (next === 61) size = 2
+  return this.finishOp(tt.relational, size)
+}
+
+pp.readToken_eq_excl = function(code) { // '=!'
+  let next = this.input.charCodeAt(this.pos + 1)
+  if (next === 61) return this.finishOp(tt.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2)
+  if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'
+    this.pos += 2
+    return this.finishToken(tt.arrow)
+  }
+  return this.finishOp(code === 61 ? tt.eq : tt.prefix, 1)
+}
+
+pp.getTokenFromCode = function(code) {
+  switch (code) {
+    // The interpretation of a dot depends on whether it is followed
+    // by a digit or another two dots.
+  case 46: // '.'
+    return this.readToken_dot()
+
+    // Punctuation tokens.
+  case 40: ++this.pos; return this.finishToken(tt.parenL)
+  case 41: ++this.pos; return this.finishToken(tt.parenR)
+  case 59: ++this.pos; return this.finishToken(tt.semi)
+  case 44: ++this.pos; return this.finishToken(tt.comma)
+  case 91: ++this.pos; return this.finishToken(tt.bracketL)
+  case 93: ++this.pos; return this.finishToken(tt.bracketR)
+  case 123: ++this.pos; return this.finishToken(tt.braceL)
+  case 125: ++this.pos; return this.finishToken(tt.braceR)
+  case 58: ++this.pos; return this.finishToken(tt.colon)
+  case 63: ++this.pos; return this.finishToken(tt.question)
+
+  case 96: // '`'
+    if (this.options.ecmaVersion < 6) break
+    ++this.pos
+    return this.finishToken(tt.backQuote)
+
+  case 48: // '0'
+    let next = this.input.charCodeAt(this.pos + 1)
+    if (next === 120 || next === 88) return this.readRadixNumber(16) // '0x', '0X' - hex number
+    if (this.options.ecmaVersion >= 6) {
+      if (next === 111 || next === 79) return this.readRadixNumber(8) // '0o', '0O' - octal number
+      if (next === 98 || next === 66) return this.readRadixNumber(2) // '0b', '0B' - binary number
+    }
+    // Anything else beginning with a digit is an integer, octal
+    // number, or float.
+  case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: // 1-9
+    return this.readNumber(false)
+
+    // Quotes produce strings.
+  case 34: case 39: // '"', "'"
+    return this.readString(code)
+
+    // Operators are parsed inline in tiny state machines. '=' (61) is
+    // often referred to. `finishOp` simply skips the amount of
+    // characters it is given as second argument, and returns a token
+    // of the type given by its first argument.
+
+  case 47: // '/'
+    return this.readToken_slash()
+
+  case 37: case 42: // '%*'
+    return this.readToken_mult_modulo_exp(code)
+
+  case 124: case 38: // '|&'
+    return this.readToken_pipe_amp(code)
+
+  case 94: // '^'
+    return this.readToken_caret()
+
+  case 43: case 45: // '+-'
+    return this.readToken_plus_min(code)
+
+  case 60: case 62: // '<>'
+    return this.readToken_lt_gt(code)
+
+  case 61: case 33: // '=!'
+    return this.readToken_eq_excl(code)
+
+  case 126: // '~'
+    return this.finishOp(tt.prefix, 1)
+  }
+
+  this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'")
+}
+
+pp.finishOp = function(type, size) {
+  let str = this.input.slice(this.pos, this.pos + size)
+  this.pos += size
+  return this.finishToken(type, str)
+}
+
+// Parse a regular expression. Some context-awareness is necessary,
+// since a '/' inside a '[]' set does not end the expression.
+
+function tryCreateRegexp(src, flags, throwErrorAt, parser) {
+  try {
+    return new RegExp(src, flags)
+  } catch (e) {
+    if (throwErrorAt !== undefined) {
+      if (e instanceof SyntaxError) parser.raise(throwErrorAt, "Error parsing regular expression: " + e.message)
+      throw e
+    }
+  }
+}
+
+var regexpUnicodeSupport = !!tryCreateRegexp("\uffff", "u")
+
+pp.readRegexp = function() {
+  let escaped, inClass, start = this.pos
+  for (;;) {
+    if (this.pos >= this.input.length) this.raise(start, "Unterminated regular expression")
+    let ch = this.input.charAt(this.pos)
+    if (lineBreak.test(ch)) this.raise(start, "Unterminated regular expression")
+    if (!escaped) {
+      if (ch === "[") inClass = true
+      else if (ch === "]" && inClass) inClass = false
+      else if (ch === "/" && !inClass) break
+      escaped = ch === "\\"
+    } else escaped = false
+    ++this.pos
+  }
+  let content = this.input.slice(start, this.pos)
+  ++this.pos
+  // Need to use `readWord1` because '\uXXXX' sequences are allowed
+  // here (don't ask).
+  let mods = this.readWord1()
+  let tmp = content, tmpFlags = ""
+  if (mods) {
+    let validFlags = /^[gim]*$/
+    if (this.options.ecmaVersion >= 6) validFlags = /^[gimuy]*$/
+    if (!validFlags.test(mods)) this.raise(start, "Invalid regular expression flag")
+    if (mods.indexOf("u") >= 0) {
+      if (regexpUnicodeSupport) {
+        tmpFlags = "u"
+      } else {
+        // Replace each astral symbol and every Unicode escape sequence that
+        // possibly represents an astral symbol or a paired surrogate with a
+        // single ASCII symbol to avoid throwing on regular expressions that
+        // are only valid in combination with the `/u` flag.
+        // Note: replacing with the ASCII symbol `x` might cause false
+        // negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
+        // perfectly valid pattern that is equivalent to `[a-b]`, but it would
+        // be replaced by `[x-b]` which throws an error.
+        tmp = tmp.replace(/\\u\{([0-9a-fA-F]+)\}/g, (_match, code, offset) => {
+          code = Number("0x" + code)
+          if (code > 0x10FFFF) this.raise(start + offset + 3, "Code point out of bounds")
+          return "x"
+        })
+        tmp = tmp.replace(/\\u([a-fA-F0-9]{4})|[\uD800-\uDBFF][\uDC00-\uDFFF]/g, "x")
+        tmpFlags = tmpFlags.replace("u", "")
+      }
+    }
+  }
+  // Detect invalid regular expressions.
+  let value = null
+  // Rhino's regular expression parser is flaky and throws uncatchable exceptions,
+  // so don't do detection if we are running under Rhino
+  if (!isRhino) {
+    tryCreateRegexp(tmp, tmpFlags, start, this)
+    // Get a regular expression object for this pattern-flag pair, or `null` in
+    // case the current environment doesn't support the flags it uses.
+    value = tryCreateRegexp(content, mods)
+  }
+  return this.finishToken(tt.regexp, {pattern: content, flags: mods, value: value})
+}
+
+// Read an integer in the given radix. Return null if zero digits
+// were read, the integer value otherwise. When `len` is given, this
+// will return `null` unless the integer has exactly `len` digits.
+
+pp.readInt = function(radix, len) {
+  let start = this.pos, total = 0
+  for (let i = 0, e = len == null ? Infinity : len; i < e; ++i) {
+    let code = this.input.charCodeAt(this.pos), val
+    if (code >= 97) val = code - 97 + 10 // a
+    else if (code >= 65) val = code - 65 + 10 // A
+    else if (code >= 48 && code <= 57) val = code - 48 // 0-9
+    else val = Infinity
+    if (val >= radix) break
+    ++this.pos
+    total = total * radix + val
+  }
+  if (this.pos === start || len != null && this.pos - start !== len) return null
+
+  return total
+}
+
+pp.readRadixNumber = function(radix) {
+  this.pos += 2 // 0x
+  let val = this.readInt(radix)
+  if (val == null) this.raise(this.start + 2, "Expected number in radix " + radix)
+  if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number")
+  return this.finishToken(tt.num, val)
+}
+
+// Read an integer, octal integer, or floating-point number.
+
+pp.readNumber = function(startsWithDot) {
+  let start = this.pos, isFloat = false, octal = this.input.charCodeAt(this.pos) === 48
+  if (!startsWithDot && this.readInt(10) === null) this.raise(start, "Invalid number")
+  if (octal && this.pos == start + 1) octal = false
+  let next = this.input.charCodeAt(this.pos)
+  if (next === 46 && !octal) { // '.'
+    ++this.pos
+    this.readInt(10)
+    isFloat = true
+    next = this.input.charCodeAt(this.pos)
+  }
+  if ((next === 69 || next === 101) && !octal) { // 'eE'
+    next = this.input.charCodeAt(++this.pos)
+    if (next === 43 || next === 45) ++this.pos // '+-'
+    if (this.readInt(10) === null) this.raise(start, "Invalid number")
+    isFloat = true
+  }
+  if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number")
+
+  let str = this.input.slice(start, this.pos), val
+  if (isFloat) val = parseFloat(str)
+  else if (!octal || str.length === 1) val = parseInt(str, 10)
+  else if (/[89]/.test(str) || this.strict) this.raise(start, "Invalid number")
+  else val = parseInt(str, 8)
+  return this.finishToken(tt.num, val)
+}
+
+// Read a string value, interpreting backslash-escapes.
+
+pp.readCodePoint = function() {
+  let ch = this.input.charCodeAt(this.pos), code
+
+  if (ch === 123) {
+    if (this.options.ecmaVersion < 6) this.unexpected()
+    let codePos = ++this.pos
+    code = this.readHexChar(this.input.indexOf('}', this.pos) - this.pos)
+    ++this.pos
+    if (code > 0x10FFFF) this.raise(codePos, "Code point out of bounds")
+  } else {
+    code = this.readHexChar(4)
+  }
+  return code
+}
+
+function codePointToString(code) {
+  // UTF-16 Decoding
+  if (code <= 0xFFFF) return String.fromCharCode(code)
+  code -= 0x10000
+  return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)
+}
+
+pp.readString = function(quote) {
+  let out = "", chunkStart = ++this.pos
+  for (;;) {
+    if (this.pos >= this.input.length) this.raise(this.start, "Unterminated string constant")
+    let ch = this.input.charCodeAt(this.pos)
+    if (ch === quote) break
+    if (ch === 92) { // '\'
+      out += this.input.slice(chunkStart, this.pos)
+      out += this.readEscapedChar(false)
+      chunkStart = this.pos
+    } else {
+      if (isNewLine(ch)) this.raise(this.start, "Unterminated string constant")
+      ++this.pos
+    }
+  }
+  out += this.input.slice(chunkStart, this.pos++)
+  return this.finishToken(tt.string, out)
+}
+
+// Reads template string tokens.
+
+pp.readTmplToken = function() {
+  let out = "", chunkStart = this.pos
+  for (;;) {
+    if (this.pos >= this.input.length) this.raise(this.start, "Unterminated template")
+    let ch = this.input.charCodeAt(this.pos)
+    if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) { // '`', '${'
+      if (this.pos === this.start && this.type === tt.template) {
+        if (ch === 36) {
+          this.pos += 2
+          return this.finishToken(tt.dollarBraceL)
+        } else {
+          ++this.pos
+          return this.finishToken(tt.backQuote)
+        }
+      }
+      out += this.input.slice(chunkStart, this.pos)
+      return this.finishToken(tt.template, out)
+    }
+    if (ch === 92) { // '\'
+      out += this.input.slice(chunkStart, this.pos)
+      out += this.readEscapedChar(true)
+      chunkStart = this.pos
+    } else if (isNewLine(ch)) {
+      out += this.input.slice(chunkStart, this.pos)
+      ++this.pos
+      switch (ch) {
+        case 13:
+          if (this.input.charCodeAt(this.pos) === 10) ++this.pos
+        case 10:
+          out += "\n"
+          break
+        default:
+          out += String.fromCharCode(ch)
+          break
+      }
+      if (this.options.locations) {
+        ++this.curLine
+        this.lineStart = this.pos
+      }
+      chunkStart = this.pos
+    } else {
+      ++this.pos
+    }
+  }
+}
+
+// Used to read escaped characters
+
+pp.readEscapedChar = function(inTemplate) {
+  let ch = this.input.charCodeAt(++this.pos)
+  ++this.pos
+  switch (ch) {
+  case 110: return "\n" // 'n' -> '\n'
+  case 114: return "\r" // 'r' -> '\r'
+  case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
+  case 117: return codePointToString(this.readCodePoint()) // 'u'
+  case 116: return "\t" // 't' -> '\t'
+  case 98: return "\b" // 'b' -> '\b'
+  case 118: return "\u000b" // 'v' -> '\u000b'
+  case 102: return "\f" // 'f' -> '\f'
+  case 13: if (this.input.charCodeAt(this.pos) === 10) ++this.pos // '\r\n'
+  case 10: // ' \n'
+    if (this.options.locations) { this.lineStart = this.pos; ++this.curLine }
+    return ""
+  default:
+    if (ch >= 48 && ch <= 55) {
+      let octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0]
+      let octal = parseInt(octalStr, 8)
+      if (octal > 255) {
+        octalStr = octalStr.slice(0, -1)
+        octal = parseInt(octalStr, 8)
+      }
+      if (octalStr !== "0" && (this.strict || inTemplate)) {
+        this.raise(this.pos - 2, "Octal literal in strict mode")
+      }
+      this.pos += octalStr.length - 1
+      return String.fromCharCode(octal)
+    }
+    return String.fromCharCode(ch)
+  }
+}
+
+// Used to read character escape sequences ('\x', '\u', '\U').
+
+pp.readHexChar = function(len) {
+  let codePos = this.pos
+  let n = this.readInt(16, len)
+  if (n === null) this.raise(codePos, "Bad character escape sequence")
+  return n
+}
+
+// Read an identifier, and return it as a string. Sets `this.containsEsc`
+// to whether the word contained a '\u' escape.
+//
+// Incrementally adds only escaped chars, adding other chunks as-is
+// as a micro-optimization.
+
+pp.readWord1 = function() {
+  this.containsEsc = false
+  let word = "", first = true, chunkStart = this.pos
+  let astral = this.options.ecmaVersion >= 6
+  while (this.pos < this.input.length) {
+    let ch = this.fullCharCodeAtPos()
+    if (isIdentifierChar(ch, astral)) {
+      this.pos += ch <= 0xffff ? 1 : 2
+    } else if (ch === 92) { // "\"
+      this.containsEsc = true
+      word += this.input.slice(chunkStart, this.pos)
+      let escStart = this.pos
+      if (this.input.charCodeAt(++this.pos) != 117) // "u"
+        this.raise(this.pos, "Expecting Unicode escape sequence \\uXXXX")
+      ++this.pos
+      let esc = this.readCodePoint()
+      if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
+        this.raise(escStart, "Invalid Unicode escape")
+      word += codePointToString(esc)
+      chunkStart = this.pos
+    } else {
+      break
+    }
+    first = false
+  }
+  return word + this.input.slice(chunkStart, this.pos)
+}
+
+// Read an identifier or keyword token. Will check for reserved
+// words when necessary.
+
+pp.readWord = function() {
+  let word = this.readWord1()
+  let type = tt.name
+  if (this.keywords.test(word)) {
+    if (this.containsEsc) this.raiseRecoverable(this.start, "Escape sequence in keyword " + word)
+    type = keywordTypes[word]
+  }
+  return this.finishToken(type, word)
+}

node_modules/acorn/src/tokentype.js

@@ -0,0 +1,147 @@
+// ## Token types
+
+// The assignment of fine-grained, information-carrying type objects
+// allows the tokenizer to store the information it has about a
+// token in a way that is very cheap for the parser to look up.
+
+// All token type variables start with an underscore, to make them
+// easy to recognize.
+
+// The `beforeExpr` property is used to disambiguate between regular
+// expressions and divisions. It is set on all token types that can
+// be followed by an expression (thus, a slash after them would be a
+// regular expression).
+//
+// The `startsExpr` property is used to check if the token ends a
+// `yield` expression. It is set on all token types that either can
+// directly start an expression (like a quotation mark) or can
+// continue an expression (like the body of a string).
+//
+// `isLoop` marks a keyword as starting a loop, which is important
+// to know when parsing a label, in order to allow or disallow
+// continue jumps to that label.
+
+export class TokenType {
+  constructor(label, conf = {}) {
+    this.label = label
+    this.keyword = conf.keyword
+    this.beforeExpr = !!conf.beforeExpr
+    this.startsExpr = !!conf.startsExpr
+    this.isLoop = !!conf.isLoop
+    this.isAssign = !!conf.isAssign
+    this.prefix = !!conf.prefix
+    this.postfix = !!conf.postfix
+    this.binop = conf.binop || null
+    this.updateContext = null
+  }
+}
+
+function binop(name, prec) {
+  return new TokenType(name, {beforeExpr: true, binop: prec})
+}
+const beforeExpr = {beforeExpr: true}, startsExpr = {startsExpr: true}
+
+// Map keyword names to token types.
+
+export const keywords = {}
+
+// Succinct definitions of keyword token types
+function kw(name, options = {}) {
+  options.keyword = name
+  return keywords[name] = new TokenType(name, options)
+}
+
+export const types = {
+  num: new TokenType("num", startsExpr),
+  regexp: new TokenType("regexp", startsExpr),
+  string: new TokenType("string", startsExpr),
+  name: new TokenType("name", startsExpr),
+  eof: new TokenType("eof"),
+
+  // Punctuation token types.
+  bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}),
+  bracketR: new TokenType("]"),
+  braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}),
+  braceR: new TokenType("}"),
+  parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}),
+  parenR: new TokenType(")"),
+  comma: new TokenType(",", beforeExpr),
+  semi: new TokenType(";", beforeExpr),
+  colon: new TokenType(":", beforeExpr),
+  dot: new TokenType("."),
+  question: new TokenType("?", beforeExpr),
+  arrow: new TokenType("=>", beforeExpr),
+  template: new TokenType("template"),
+  ellipsis: new TokenType("...", beforeExpr),
+  backQuote: new TokenType("`", startsExpr),
+  dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}),
+
+  // Operators. These carry several kinds of properties to help the
+  // parser use them properly (the presence of these properties is
+  // what categorizes them as operators).
+  //
+  // `binop`, when present, specifies that this operator is a binary
+  // operator, and will refer to its precedence.
+  //
+  // `prefix` and `postfix` mark the operator as a prefix or postfix
+  // unary operator.
+  //
+  // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
+  // binary operators with a very low precedence, that should result
+  // in AssignmentExpression nodes.
+
+  eq: new TokenType("=", {beforeExpr: true, isAssign: true}),
+  assign: new TokenType("_=", {beforeExpr: true, isAssign: true}),
+  incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}),
+  prefix: new TokenType("prefix", {beforeExpr: true, prefix: true, startsExpr: true}),
+  logicalOR: binop("||", 1),
+  logicalAND: binop("&&", 2),
+  bitwiseOR: binop("|", 3),
+  bitwiseXOR: binop("^", 4),
+  bitwiseAND: binop("&", 5),
+  equality: binop("==/!=", 6),
+  relational: binop("</>", 7),
+  bitShift: binop("<</>>", 8),
+  plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),
+  modulo: binop("%", 10),
+  star: binop("*", 10),
+  slash: binop("/", 10),
+  starstar: new TokenType("**", {beforeExpr: true}),
+
+  // Keyword token types.
+  _break: kw("break"),
+  _case: kw("case", beforeExpr),
+  _catch: kw("catch"),
+  _continue: kw("continue"),
+  _debugger: kw("debugger"),
+  _default: kw("default", beforeExpr),
+  _do: kw("do", {isLoop: true, beforeExpr: true}),
+  _else: kw("else", beforeExpr),
+  _finally: kw("finally"),
+  _for: kw("for", {isLoop: true}),
+  _function: kw("function", startsExpr),
+  _if: kw("if"),
+  _return: kw("return", beforeExpr),
+  _switch: kw("switch"),
+  _throw: kw("throw", beforeExpr),
+  _try: kw("try"),
+  _var: kw("var"),
+  _const: kw("const"),
+  _while: kw("while", {isLoop: true}),
+  _with: kw("with"),
+  _new: kw("new", {beforeExpr: true, startsExpr: true}),
+  _this: kw("this", startsExpr),
+  _super: kw("super", startsExpr),
+  _class: kw("class"),
+  _extends: kw("extends", beforeExpr),
+  _export: kw("export"),
+  _import: kw("import"),
+  _null: kw("null", startsExpr),
+  _true: kw("true", startsExpr),
+  _false: kw("false", startsExpr),
+  _in: kw("in", {beforeExpr: true, binop: 7}),
+  _instanceof: kw("instanceof", {beforeExpr: true, binop: 7}),
+  _typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}),
+  _void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}),
+  _delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true})
+}

node_modules/acorn/src/util.js

@@ -0,0 +1,9 @@
+export function isArray(obj) {
+  return Object.prototype.toString.call(obj) === "[object Array]"
+}
+
+// Checks if an object has a property.
+
+export function has(obj, propName) {
+  return Object.prototype.hasOwnProperty.call(obj, propName)
+}

node_modules/acorn/src/walk/index.js

@@ -0,0 +1,342 @@
+// AST walker module for Mozilla Parser API compatible trees
+
+// A simple walk is one where you simply specify callbacks to be
+// called on specific nodes. The last two arguments are optional. A
+// simple use would be
+//
+//     walk.simple(myTree, {
+//         Expression: function(node) { ... }
+//     });
+//
+// to do something with all expressions. All Parser API node types
+// can be used to identify node types, as well as Expression,
+// Statement, and ScopeBody, which denote categories of nodes.
+//
+// The base argument can be used to pass a custom (recursive)
+// walker, and state can be used to give this walked an initial
+// state.
+
+export function simple(node, visitors, base, state, override) {
+  if (!base) base = exports.base
+  ;(function c(node, st, override) {
+    let type = override || node.type, found = visitors[type]
+    base[type](node, st, c)
+    if (found) found(node, st)
+  })(node, state, override)
+}
+
+// An ancestor walk keeps an array of ancestor nodes (including the
+// current node) and passes them to the callback as third parameter
+// (and also as state parameter when no other state is present).
+export function ancestor(node, visitors, base, state) {
+  if (!base) base = exports.base
+  let ancestors = []
+  ;(function c(node, st, override) {
+    let type = override || node.type, found = visitors[type]
+    let isNew = node != ancestors[ancestors.length - 1]
+    if (isNew) ancestors.push(node)
+    base[type](node, st, c)
+    if (found) found(node, st || ancestors, ancestors)
+    if (isNew) ancestors.pop()
+  })(node, state)
+}
+
+// A recursive walk is one where your functions override the default
+// walkers. They can modify and replace the state parameter that's
+// threaded through the walk, and can opt how and whether to walk
+// their child nodes (by calling their third argument on these
+// nodes).
+export function recursive(node, state, funcs, base, override) {
+  let visitor = funcs ? exports.make(funcs, base) : base
+  ;(function c(node, st, override) {
+    visitor[override || node.type](node, st, c)
+  })(node, state, override)
+}
+
+function makeTest(test) {
+  if (typeof test == "string")
+    return type => type == test
+  else if (!test)
+    return () => true
+  else
+    return test
+}
+
+class Found {
+  constructor(node, state) { this.node = node; this.state = state }
+}
+
+// Find a node with a given start, end, and type (all are optional,
+// null can be used as wildcard). Returns a {node, state} object, or
+// undefined when it doesn't find a matching node.
+export function findNodeAt(node, start, end, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  try {
+    ;(function c(node, st, override) {
+      let type = override || node.type
+      if ((start == null || node.start <= start) &&
+          (end == null || node.end >= end))
+        base[type](node, st, c)
+      if ((start == null || node.start == start) &&
+          (end == null || node.end == end) &&
+          test(type, node))
+        throw new Found(node, st)
+    })(node, state)
+  } catch (e) {
+    if (e instanceof Found) return e
+    throw e
+  }
+}
+
+// Find the innermost node of a given type that contains the given
+// position. Interface similar to findNodeAt.
+export function findNodeAround(node, pos, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  try {
+    ;(function c(node, st, override) {
+      let type = override || node.type
+      if (node.start > pos || node.end < pos) return
+      base[type](node, st, c)
+      if (test(type, node)) throw new Found(node, st)
+    })(node, state)
+  } catch (e) {
+    if (e instanceof Found) return e
+    throw e
+  }
+}
+
+// Find the outermost matching node after a given position.
+export function findNodeAfter(node, pos, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  try {
+    ;(function c(node, st, override) {
+      if (node.end < pos) return
+      let type = override || node.type
+      if (node.start >= pos && test(type, node)) throw new Found(node, st)
+      base[type](node, st, c)
+    })(node, state)
+  } catch (e) {
+    if (e instanceof Found) return e
+    throw e
+  }
+}
+
+// Find the outermost matching node before a given position.
+export function findNodeBefore(node, pos, test, base, state) {
+  test = makeTest(test)
+  if (!base) base = exports.base
+  let max
+  ;(function c(node, st, override) {
+    if (node.start > pos) return
+    let type = override || node.type
+    if (node.end <= pos && (!max || max.node.end < node.end) && test(type, node))
+      max = new Found(node, st)
+    base[type](node, st, c)
+  })(node, state)
+  return max
+}
+
+// Fallback to an Object.create polyfill for older environments.
+const create = Object.create || function(proto) {
+  function Ctor() {}
+  Ctor.prototype = proto
+  return new Ctor
+}
+
+// Used to create a custom walker. Will fill in all missing node
+// type properties with the defaults.
+export function make(funcs, base) {
+  if (!base) base = exports.base
+  let visitor = create(base)
+  for (var type in funcs) visitor[type] = funcs[type]
+  return visitor
+}
+
+function skipThrough(node, st, c) { c(node, st) }
+function ignore(_node, _st, _c) {}
+
+// Node walkers.
+
+export const base = {}
+
+base.Program = base.BlockStatement = (node, st, c) => {
+  for (let i = 0; i < node.body.length; ++i)
+    c(node.body[i], st, "Statement")
+}
+base.Statement = skipThrough
+base.EmptyStatement = ignore
+base.ExpressionStatement = base.ParenthesizedExpression =
+  (node, st, c) => c(node.expression, st, "Expression")
+base.IfStatement = (node, st, c) => {
+  c(node.test, st, "Expression")
+  c(node.consequent, st, "Statement")
+  if (node.alternate) c(node.alternate, st, "Statement")
+}
+base.LabeledStatement = (node, st, c) => c(node.body, st, "Statement")
+base.BreakStatement = base.ContinueStatement = ignore
+base.WithStatement = (node, st, c) => {
+  c(node.object, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.SwitchStatement = (node, st, c) => {
+  c(node.discriminant, st, "Expression")
+  for (let i = 0; i < node.cases.length; ++i) {
+    let cs = node.cases[i]
+    if (cs.test) c(cs.test, st, "Expression")
+    for (let j = 0; j < cs.consequent.length; ++j)
+      c(cs.consequent[j], st, "Statement")
+  }
+}
+base.ReturnStatement = base.YieldExpression = base.AwaitExpression = (node, st, c) => {
+  if (node.argument) c(node.argument, st, "Expression")
+}
+base.ThrowStatement = base.SpreadElement =
+  (node, st, c) => c(node.argument, st, "Expression")
+base.TryStatement = (node, st, c) => {
+  c(node.block, st, "Statement")
+  if (node.handler) c(node.handler, st)
+  if (node.finalizer) c(node.finalizer, st, "Statement")
+}
+base.CatchClause = (node, st, c) => {
+  c(node.param, st, "Pattern")
+  c(node.body, st, "ScopeBody")
+}
+base.WhileStatement = base.DoWhileStatement = (node, st, c) => {
+  c(node.test, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.ForStatement = (node, st, c) => {
+  if (node.init) c(node.init, st, "ForInit")
+  if (node.test) c(node.test, st, "Expression")
+  if (node.update) c(node.update, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.ForInStatement = base.ForOfStatement = (node, st, c) => {
+  c(node.left, st, "ForInit")
+  c(node.right, st, "Expression")
+  c(node.body, st, "Statement")
+}
+base.ForInit = (node, st, c) => {
+  if (node.type == "VariableDeclaration") c(node, st)
+  else c(node, st, "Expression")
+}
+base.DebuggerStatement = ignore
+
+base.FunctionDeclaration = (node, st, c) => c(node, st, "Function")
+base.VariableDeclaration = (node, st, c) => {
+  for (let i = 0; i < node.declarations.length; ++i)
+    c(node.declarations[i], st)
+}
+base.VariableDeclarator = (node, st, c) => {
+  c(node.id, st, "Pattern")
+  if (node.init) c(node.init, st, "Expression")
+}
+
+base.Function = (node, st, c) => {
+  if (node.id) c(node.id, st, "Pattern")
+  for (let i = 0; i < node.params.length; i++)
+    c(node.params[i], st, "Pattern")
+  c(node.body, st, node.expression ? "ScopeExpression" : "ScopeBody")
+}
+// FIXME drop these node types in next major version
+// (They are awkward, and in ES6 every block can be a scope.)
+base.ScopeBody = (node, st, c) => c(node, st, "Statement")
+base.ScopeExpression = (node, st, c) => c(node, st, "Expression")
+
+base.Pattern = (node, st, c) => {
+  if (node.type == "Identifier")
+    c(node, st, "VariablePattern")
+  else if (node.type == "MemberExpression")
+    c(node, st, "MemberPattern")
+  else
+    c(node, st)
+}
+base.VariablePattern = ignore
+base.MemberPattern = skipThrough
+base.RestElement = (node, st, c) => c(node.argument, st, "Pattern")
+base.ArrayPattern =  (node, st, c) => {
+  for (let i = 0; i < node.elements.length; ++i) {
+    let elt = node.elements[i]
+    if (elt) c(elt, st, "Pattern")
+  }
+}
+base.ObjectPattern = (node, st, c) => {
+  for (let i = 0; i < node.properties.length; ++i)
+    c(node.properties[i].value, st, "Pattern")
+}
+
+base.Expression = skipThrough
+base.ThisExpression = base.Super = base.MetaProperty = ignore
+base.ArrayExpression = (node, st, c) => {
+  for (let i = 0; i < node.elements.length; ++i) {
+    let elt = node.elements[i]
+    if (elt) c(elt, st, "Expression")
+  }
+}
+base.ObjectExpression = (node, st, c) => {
+  for (let i = 0; i < node.properties.length; ++i)
+    c(node.properties[i], st)
+}
+base.FunctionExpression = base.ArrowFunctionExpression = base.FunctionDeclaration
+base.SequenceExpression = base.TemplateLiteral = (node, st, c) => {
+  for (let i = 0; i < node.expressions.length; ++i)
+    c(node.expressions[i], st, "Expression")
+}
+base.UnaryExpression = base.UpdateExpression = (node, st, c) => {
+  c(node.argument, st, "Expression")
+}
+base.BinaryExpression = base.LogicalExpression = (node, st, c) => {
+  c(node.left, st, "Expression")
+  c(node.right, st, "Expression")
+}
+base.AssignmentExpression = base.AssignmentPattern = (node, st, c) => {
+  c(node.left, st, "Pattern")
+  c(node.right, st, "Expression")
+}
+base.ConditionalExpression = (node, st, c) => {
+  c(node.test, st, "Expression")
+  c(node.consequent, st, "Expression")
+  c(node.alternate, st, "Expression")
+}
+base.NewExpression = base.CallExpression = (node, st, c) => {
+  c(node.callee, st, "Expression")
+  if (node.arguments) for (let i = 0; i < node.arguments.length; ++i)
+    c(node.arguments[i], st, "Expression")
+}
+base.MemberExpression = (node, st, c) => {
+  c(node.object, st, "Expression")
+  if (node.computed) c(node.property, st, "Expression")
+}
+base.ExportNamedDeclaration = base.ExportDefaultDeclaration = (node, st, c) => {
+  if (node.declaration)
+    c(node.declaration, st, node.type == "ExportNamedDeclaration" || node.declaration.id ? "Statement" : "Expression")
+  if (node.source) c(node.source, st, "Expression")
+}
+base.ExportAllDeclaration = (node, st, c) => {
+  c(node.source, st, "Expression")
+}
+base.ImportDeclaration = (node, st, c) => {
+  for (let i = 0; i < node.specifiers.length; i++)
+    c(node.specifiers[i], st)
+  c(node.source, st, "Expression")
+}
+base.ImportSpecifier = base.ImportDefaultSpecifier = base.ImportNamespaceSpecifier = base.Identifier = base.Literal = ignore
+
+base.TaggedTemplateExpression = (node, st, c) => {
+  c(node.tag, st, "Expression")
+  c(node.quasi, st)
+}
+base.ClassDeclaration = base.ClassExpression = (node, st, c) => c(node, st, "Class")
+base.Class = (node, st, c) => {
+  if (node.id) c(node.id, st, "Pattern")
+  if (node.superClass) c(node.superClass, st, "Expression")
+  for (let i = 0; i < node.body.body.length; i++)
+    c(node.body.body[i], st)
+}
+base.MethodDefinition = base.Property = (node, st, c) => {
+  if (node.computed) c(node.key, st, "Expression")
+  c(node.value, st, "Expression")
+}

node_modules/acorn/src/whitespace.js

@@ -0,0 +1,13 @@
+// Matches a whole line break (where CRLF is considered a single
+// line break). Used to count lines.
+
+export const lineBreak = /\r\n?|\n|\u2028|\u2029/
+export const lineBreakG = new RegExp(lineBreak.source, "g")
+
+export function isNewLine(code) {
+  return code === 10 || code === 13 || code === 0x2028 || code === 0x2029
+}
+
+export const nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/
+
+export const skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g

node_modules/arr-diff/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2015, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

node_modules/arr-diff/README.md

@@ -0,0 +1,74 @@
+# arr-diff [![NPM version](https://img.shields.io/npm/v/arr-diff.svg)](https://www.npmjs.com/package/arr-diff) [![Build Status](https://img.shields.io/travis/jonschlinkert/base.svg)](https://travis-ci.org/jonschlinkert/base)
+
+> Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/)
+
+```sh
+$ npm i arr-diff --save
+```
+Install with [bower](http://bower.io/)
+
+```sh
+$ bower install arr-diff --save
+```
+
+## API
+
+### [diff](index.js#L33)
+
+Return the difference between the first array and additional arrays.
+
+**Params**
+
+* `a` **{Array}**
+* `b` **{Array}**
+* `returns` **{Array}**
+
+**Example**
+
+```js
+var diff = require('arr-diff');
+
+var a = ['a', 'b', 'c', 'd'];
+var b = ['b', 'c'];
+
+console.log(diff(a, b))
+//=> ['a', 'd']
+```
+
+## Related projects
+
+* [arr-flatten](https://www.npmjs.com/package/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | [homepage](https://github.com/jonschlinkert/arr-flatten)
+* [array-filter](https://www.npmjs.com/package/array-filter): Array#filter for older browsers. | [homepage](https://github.com/juliangruber/array-filter)
+* [array-intersection](https://www.npmjs.com/package/array-intersection): Return an array with the unique values present in _all_ given arrays using strict equality… [more](https://www.npmjs.com/package/array-intersection) | [homepage](https://github.com/jonschlinkert/array-intersection)
+
+## Running tests
+
+Install dev dependencies:
+
+```sh
+$ npm i -d && npm test
+```
+
+## Contributing
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/arr-diff/issues/new).
+
+## Author
+
+**Jon Schlinkert**
+
++ [github/jonschlinkert](https://github.com/jonschlinkert)
++ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
+
+## License
+
+Copyright © 2015 [Jon Schlinkert](https://github.com/jonschlinkert)
+Released under the MIT license.
+
+***
+
+_This file was generated by [verb](https://github.com/verbose/verb) on Sat Dec 05 2015 23:24:53 GMT-0500 (EST)._

node_modules/arr-diff/index.js

@@ -0,0 +1,58 @@
+/*!
+ * arr-diff <https://github.com/jonschlinkert/arr-diff>
+ *
+ * Copyright (c) 2014 Jon Schlinkert, contributors.
+ * Licensed under the MIT License
+ */
+
+'use strict';
+
+var flatten = require('arr-flatten');
+var slice = [].slice;
+
+/**
+ * Return the difference between the first array and
+ * additional arrays.
+ *
+ * ```js
+ * var diff = require('{%= name %}');
+ *
+ * var a = ['a', 'b', 'c', 'd'];
+ * var b = ['b', 'c'];
+ *
+ * console.log(diff(a, b))
+ * //=> ['a', 'd']
+ * ```
+ *
+ * @param  {Array} `a`
+ * @param  {Array} `b`
+ * @return {Array}
+ * @api public
+ */
+
+function diff(arr, arrays) {
+  var argsLen = arguments.length;
+  var len = arr.length, i = -1;
+  var res = [], arrays;
+
+  if (argsLen === 1) {
+    return arr;
+  }
+
+  if (argsLen > 2) {
+    arrays = flatten(slice.call(arguments, 1));
+  }
+
+  while (++i < len) {
+    if (!~arrays.indexOf(arr[i])) {
+      res.push(arr[i]);
+    }
+  }
+  return res;
+}
+
+/**
+ * Expose `diff`
+ */
+
+module.exports = diff;

node_modules/arr-diff/package.json

@@ -0,0 +1,49 @@
+{
+  "name": "arr-diff",
+  "description": "Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.",
+  "version": "2.0.0",
+  "homepage": "https://github.com/jonschlinkert/arr-diff",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "repository": "jonschlinkert/arr-diff",
+  "bugs": {
+    "url": "https://github.com/jonschlinkert/arr-diff/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "dependencies": {
+    "arr-flatten": "^1.0.1"
+  },
+  "devDependencies": {
+    "array-differ": "^1.0.0",
+    "array-slice": "^0.2.3",
+    "benchmarked": "^0.1.4",
+    "chalk": "^1.1.1",
+    "mocha": "*",
+    "should": "*"
+  },
+  "keywords": [
+    "arr",
+    "array",
+    "diff",
+    "differ",
+    "difference"
+  ],
+  "verb": {
+    "related": {
+      "list": [
+        "arr-flatten",
+        "array-filter",
+        "array-intersection"
+      ]
+    }
+  }
+}

node_modules/arr-flatten/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2017, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

node_modules/arr-flatten/README.md

@@ -0,0 +1,86 @@
+# arr-flatten [![NPM version](https://img.shields.io/npm/v/arr-flatten.svg?style=flat)](https://www.npmjs.com/package/arr-flatten) [![NPM monthly downloads](https://img.shields.io/npm/dm/arr-flatten.svg?style=flat)](https://npmjs.org/package/arr-flatten) [![NPM total downloads](https://img.shields.io/npm/dt/arr-flatten.svg?style=flat)](https://npmjs.org/package/arr-flatten) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/arr-flatten.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/arr-flatten) [![Windows Build Status](https://img.shields.io/appveyor/ci/jonschlinkert/arr-flatten.svg?style=flat&label=AppVeyor)](https://ci.appveyor.com/project/jonschlinkert/arr-flatten)
+
+> Recursively flatten an array or arrays.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save arr-flatten
+```
+
+## Install
+
+Install with [bower](https://bower.io/)
+
+```sh
+$ bower install arr-flatten --save
+```
+
+## Usage
+
+```js
+var flatten = require('arr-flatten');
+
+flatten(['a', ['b', ['c']], 'd', ['e']]);
+//=> ['a', 'b', 'c', 'd', 'e']
+```
+
+## Why another flatten utility?
+
+I wanted the fastest implementation I could find, with implementation choices that should work for 95% of use cases, but no cruft to cover the other 5%.
+
+## About
+
+### Related projects
+
+* [arr-filter](https://www.npmjs.com/package/arr-filter): Faster alternative to javascript's native filter method. | [homepage](https://github.com/jonschlinkert/arr-filter "Faster alternative to javascript's native filter method.")
+* [arr-union](https://www.npmjs.com/package/arr-union): Combines a list of arrays, returning a single array with unique values, using strict equality… [more](https://github.com/jonschlinkert/arr-union) | [homepage](https://github.com/jonschlinkert/arr-union "Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.")
+* [array-each](https://www.npmjs.com/package/array-each): Loop over each item in an array and call the given function on every element. | [homepage](https://github.com/jonschlinkert/array-each "Loop over each item in an array and call the given function on every element.")
+* [array-unique](https://www.npmjs.com/package/array-unique): Remove duplicate values from an array. Fastest ES5 implementation. | [homepage](https://github.com/jonschlinkert/array-unique "Remove duplicate values from an array. Fastest ES5 implementation.")
+
+### Contributing
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+### Contributors
+
+| **Commits** | **Contributor** | 
+| --- | --- |
+| 20 | [jonschlinkert](https://github.com/jonschlinkert) |
+| 1 | [lukeed](https://github.com/lukeed) |
+
+### Building docs
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+$ npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+### Running tests
+
+Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
+
+```sh
+$ npm install && npm test
+```
+
+### Author
+
+**Jon Schlinkert**
+
+* [github/jonschlinkert](https://github.com/jonschlinkert)
+* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
+
+### License
+
+Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT License](LICENSE).
+
+***
+
+_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 05, 2017._

node_modules/arr-flatten/index.js

@@ -0,0 +1,22 @@
+/*!
+ * arr-flatten <https://github.com/jonschlinkert/arr-flatten>
+ *
+ * Copyright (c) 2014-2017, Jon Schlinkert.
+ * Released under the MIT License.
+ */
+
+'use strict';
+
+module.exports = function (arr) {
+  return flat(arr, []);
+};
+
+function flat(arr, res) {
+  var i = 0, cur;
+  var len = arr.length;
+  for (; i < len; i++) {
+    cur = arr[i];
+    Array.isArray(cur) ? flat(cur, res) : res.push(cur);
+  }
+  return res;
+}

node_modules/arr-flatten/package.json

@@ -0,0 +1,76 @@
+{
+  "name": "arr-flatten",
+  "description": "Recursively flatten an array or arrays.",
+  "version": "1.1.0",
+  "homepage": "https://github.com/jonschlinkert/arr-flatten",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "contributors": [
+    "Jon Schlinkert (http://twitter.com/jonschlinkert)",
+    "Luke Edwards (https://lukeed.com)"
+  ],
+  "repository": "jonschlinkert/arr-flatten",
+  "bugs": {
+    "url": "https://github.com/jonschlinkert/arr-flatten/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "devDependencies": {
+    "ansi-bold": "^0.1.1",
+    "array-flatten": "^2.1.1",
+    "array-slice": "^1.0.0",
+    "benchmarked": "^1.0.0",
+    "compute-flatten": "^1.0.0",
+    "flatit": "^1.1.1",
+    "flatten": "^1.0.2",
+    "flatten-array": "^1.0.0",
+    "glob": "^7.1.1",
+    "gulp-format-md": "^0.1.12",
+    "just-flatten-it": "^1.1.23",
+    "lodash.flattendeep": "^4.4.0",
+    "m_flattened": "^1.0.1",
+    "mocha": "^3.2.0",
+    "utils-flatten": "^1.0.0",
+    "write": "^0.3.3"
+  },
+  "keywords": [
+    "arr",
+    "array",
+    "elements",
+    "flat",
+    "flatten",
+    "nested",
+    "recurse",
+    "recursive",
+    "recursively"
+  ],
+  "verb": {
+    "toc": false,
+    "layout": "default",
+    "tasks": [
+      "readme"
+    ],
+    "plugins": [
+      "gulp-format-md"
+    ],
+    "related": {
+      "list": [
+        "arr-filter",
+        "arr-union",
+        "array-each",
+        "array-unique"
+      ]
+    },
+    "lint": {
+      "reflinks": true
+    }
+  }
+}

node_modules/array-unique/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2015, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

node_modules/array-unique/README.md

@@ -0,0 +1,51 @@
+# array-unique [![NPM version](https://badge.fury.io/js/array-unique.svg)](http://badge.fury.io/js/array-unique)  [![Build Status](https://travis-ci.org/jonschlinkert/array-unique.svg)](https://travis-ci.org/jonschlinkert/array-unique) 
+
+> Return an array free of duplicate values. Fastest ES5 implementation.
+
+## Install with [npm](npmjs.org)
+
+```bash
+npm i array-unique --save
+```
+
+## Usage
+
+```js
+var unique = require('array-unique');
+
+unique(['a', 'b', 'c', 'c']);
+//=> ['a', 'b', 'c']
+```
+
+## Related
+* [arr-diff](https://github.com/jonschlinkert/arr-diff): Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.
+* [arr-union](https://github.com/jonschlinkert/arr-union): Returns an array of unique values using strict equality for comparisons.
+* [arr-flatten](https://github.com/jonschlinkert/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten.
+* [arr-reduce](https://github.com/jonschlinkert/arr-reduce): Fast array reduce that also loops over sparse elements.
+* [arr-map](https://github.com/jonschlinkert/arr-map): Faster, node.js focused alternative to JavaScript's native array map.
+* [arr-pluck](https://github.com/jonschlinkert/arr-pluck): Retrieves the value of a specified property from all elements in the collection.
+
+## Run tests
+Install dev dependencies.
+
+```bash
+npm i -d && npm test
+```
+
+## Contributing
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/array-unique/issues)
+
+## Author
+
+**Jon Schlinkert**
+ 
++ [github/jonschlinkert](https://github.com/jonschlinkert)
++ [twitter/jonschlinkert](http://twitter.com/jonschlinkert) 
+
+## License
+Copyright (c) 2015 Jon Schlinkert  
+Released under the MIT license
+
+***
+
+_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on March 24, 2015._

node_modules/array-unique/index.js

@@ -0,0 +1,28 @@
+/*!
+ * array-unique <https://github.com/jonschlinkert/array-unique>
+ *
+ * Copyright (c) 2014-2015, Jon Schlinkert.
+ * Licensed under the MIT License.
+ */
+
+'use strict';
+
+module.exports = function unique(arr) {
+  if (!Array.isArray(arr)) {
+    throw new TypeError('array-unique expects an array.');
+  }
+
+  var len = arr.length;
+  var i = -1;
+
+  while (i++ < len) {
+    var j = i + 1;
+
+    for (; j < arr.length; ++j) {
+      if (arr[i] === arr[j]) {
+        arr.splice(j--, 1);
+      }
+    }
+  }
+  return arr;
+};

node_modules/array-unique/package.json

@@ -0,0 +1,37 @@
+{
+  "name": "array-unique",
+  "description": "Return an array free of duplicate values. Fastest ES5 implementation.",
+  "version": "0.2.1",
+  "homepage": "https://github.com/jonschlinkert/array-unique",
+  "author": {
+    "name": "Jon Schlinkert",
+    "url": "https://github.com/jonschlinkert"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/jonschlinkert/array-unique.git"
+  },
+  "bugs": {
+    "url": "https://github.com/jonschlinkert/array-unique/issues"
+  },
+  "license": {
+    "type": "MIT",
+    "url": "https://github.com/jonschlinkert/array-unique/blob/master/LICENSE"
+  },
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "devDependencies": {
+    "array-uniq": "^1.0.2",
+    "benchmarked": "^0.1.3",
+    "mocha": "*",
+    "should": "*"
+  }
+}

node_modules/atob/LICENSE

@@ -0,0 +1,230 @@
+At your option you may choose either of the following licenses:
+
+  * The MIT License (MIT)
+  * The Apache License 2.0 (Apache-2.0)
+
+
+The MIT License (MIT)
+
+Copyright (c) 2015 AJ ONeal
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
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+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
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+
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node_modules/atob/LICENSE.DOCS

@@ -0,0 +1,319 @@
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node_modules/atob/README.md

@@ -0,0 +1,49 @@
+atob
+===
+
+| **atob**
+| [btoa](https://git.coolaj86.com/coolaj86/btoa.js)
+| [unibabel.js](https://git.coolaj86.com/coolaj86/unibabel.js)
+| Sponsored by [ppl](https://ppl.family)
+
+Uses `Buffer` to emulate the exact functionality of the browser's atob.
+
+Note: Unicode may be handled incorrectly (like the browser).
+
+It turns base64-encoded <strong>a</strong>scii data back **to** <strong>b</strong>inary.
+
+```javascript
+(function () {
+  "use strict";
+
+  var atob = require('atob');
+  var b64 = "SGVsbG8sIFdvcmxkIQ==";
+  var bin = atob(b64);
+
+  console.log(bin); // "Hello, World!"
+}());
+```
+
+### Need Unicode and Binary Support in the Browser?
+
+Check out [unibabel.js](https://git.coolaj86.com/coolaj86/unibabel.js)
+
+Changelog
+=======
+
+  * v2.1.0 address a few issues and PRs, update URLs
+  * v2.0.0 provide browser version for ios web workers
+  * v1.2.0 provide (empty) browser version
+  * v1.1.3 add MIT license
+  * v1.1.2 node only
+
+LICENSE
+=======
+
+Code copyright 2012-2018 AJ ONeal
+
+Dual-licensed MIT and Apache-2.0
+
+Docs copyright 2012-2018 AJ ONeal
+
+Docs released under [Creative Commons](https://git.coolaj86.com/coolaj86/atob.js/blob/master/LICENSE.DOCS).

node_modules/atob/bin/atob.js

@@ -0,0 +1,6 @@
+#!/usr/bin/env node
+'use strict';
+
+var atob = require('../node-atob');
+var str = process.argv[2];
+console.log(atob(str));

node_modules/atob/bower.json

@@ -0,0 +1,24 @@
+{
+  "name": "atob",
+  "description": "atob for isomorphic environments",
+  "main": "browser-atob.js",
+  "authors": [
+    "AJ ONeal <coolaj86@gmail.com> (https://coolaj86.com)"
+  ],
+  "license": "(MIT OR Apache-2.0)",
+  "keywords": [
+    "atob",
+    "browser"
+  ],
+  "homepage": "https://github.com/node-browser-compat/atob",
+  "moduleType": [
+    "globals"
+  ],
+  "ignore": [
+    "**/.*",
+    "node_modules",
+    "bower_components",
+    "test",
+    "tests"
+  ]
+}

node_modules/atob/browser-atob.js

@@ -0,0 +1,44 @@
+(function (w) {
+  "use strict";
+
+  function findBest(atobNative) {
+    // normal window
+    if ('function' === typeof atobNative) { return atobNative; }
+
+
+    // browserify (web worker)
+    if ('function' === typeof Buffer) {
+      return function atobBrowserify(a) {
+        //!! Deliberately using an API that's deprecated in node.js because
+        //!! this file is for browsers and we expect them to cope with it.
+        //!! Discussion: github.com/node-browser-compat/atob/pull/9
+        return new Buffer(a, 'base64').toString('binary');
+      };
+    }
+
+    // ios web worker with base64js
+    if ('object' === typeof w.base64js) {
+      // bufferToBinaryString
+      // https://git.coolaj86.com/coolaj86/unibabel.js/blob/master/index.js#L50
+      return function atobWebWorker_iOS(a) {
+        var buf = w.base64js.b64ToByteArray(a);
+        return Array.prototype.map.call(buf, function (ch) {
+          return String.fromCharCode(ch);
+        }).join('');
+      };
+    }
+
+		return function () {
+			// ios web worker without base64js
+			throw new Error("You're probably in an old browser or an iOS webworker." +
+				" It might help to include beatgammit's base64-js.");
+    };
+  }
+
+  var atobBest = findBest(w.atob);
+  w.atob = atobBest;
+
+  if ((typeof module === 'object') && module && module.exports) {
+    module.exports = atobBest;
+  }
+}(window));

node_modules/atob/node-atob.js

@@ -0,0 +1,7 @@
+"use strict";
+
+function atob(str) {
+  return Buffer.from(str, 'base64').toString('binary');
+}
+
+module.exports = atob.atob = atob;

node_modules/atob/package.json

@@ -0,0 +1,24 @@
+{
+  "name": "atob",
+  "homepage": "https://git.coolaj86.com/coolaj86/atob.js.git",
+  "description": "atob for Node.JS and Linux / Mac / Windows CLI (it's a one-liner)",
+  "repository": {
+    "type": "git",
+    "url": "git://git.coolaj86.com/coolaj86/atob.js.git"
+  },
+  "keywords": [
+    "atob",
+    "browser"
+  ],
+  "author": "AJ ONeal <coolaj86@gmail.com> (https://coolaj86.com)",
+  "engines": {
+    "node": ">= 4.5.0"
+  },
+  "main": "node-atob.js",
+  "browser": "browser-atob.js",
+  "bin": {
+    "atob": "bin/atob.js"
+  },
+  "license": "(MIT OR Apache-2.0)",
+  "version": "2.1.2"
+}

node_modules/atob/test.js

@@ -0,0 +1,18 @@
+(function () {
+  "use strict";
+
+  var atob = require('.');
+  var encoded = "SGVsbG8sIFdvcmxkIQ=="
+  var unencoded = "Hello, World!";
+  /*
+    , encoded = "SGVsbG8sIBZM"
+    , unencoded = "Hello, 世界"
+  */
+
+  if (unencoded !== atob(encoded)) {
+    console.log('[FAIL]', unencoded, atob(encoded));
+    return;
+  }
+
+  console.log('[PASS] all tests pass');
+}());

node_modules/balanced-match/.github/FUNDING.yml

@@ -0,0 +1,2 @@
+tidelift: "npm/balanced-match"
+patreon: juliangruber

node_modules/balanced-match/LICENSE.md

@@ -0,0 +1,21 @@
+(MIT)
+
+Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/balanced-match/README.md

@@ -0,0 +1,97 @@
+# balanced-match
+
+Match balanced string pairs, like `{` and `}` or `<b>` and `</b>`. Supports regular expressions as well!
+
+[![build status](https://secure.travis-ci.org/juliangruber/balanced-match.svg)](http://travis-ci.org/juliangruber/balanced-match)
+[![downloads](https://img.shields.io/npm/dm/balanced-match.svg)](https://www.npmjs.org/package/balanced-match)
+
+[![testling badge](https://ci.testling.com/juliangruber/balanced-match.png)](https://ci.testling.com/juliangruber/balanced-match)
+
+## Example
+
+Get the first matching pair of braces:
+
+```js
+var balanced = require('balanced-match');
+
+console.log(balanced('{', '}', 'pre{in{nested}}post'));
+console.log(balanced('{', '}', 'pre{first}between{second}post'));
+console.log(balanced(/\s+\{\s+/, /\s+\}\s+/, 'pre  {   in{nest}   }  post'));
+```
+
+The matches are:
+
+```bash
+$ node example.js
+{ start: 3, end: 14, pre: 'pre', body: 'in{nested}', post: 'post' }
+{ start: 3,
+  end: 9,
+  pre: 'pre',
+  body: 'first',
+  post: 'between{second}post' }
+{ start: 3, end: 17, pre: 'pre', body: 'in{nest}', post: 'post' }
+```
+
+## API
+
+### var m = balanced(a, b, str)
+
+For the first non-nested matching pair of `a` and `b` in `str`, return an
+object with those keys:
+
+* **start** the index of the first match of `a`
+* **end** the index of the matching `b`
+* **pre** the preamble, `a` and `b` not included
+* **body** the match, `a` and `b` not included
+* **post** the postscript, `a` and `b` not included
+
+If there's no match, `undefined` will be returned.
+
+If the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `['{', 'a', '']` and `{a}}` will match `['', 'a', '}']`.
+
+### var r = balanced.range(a, b, str)
+
+For the first non-nested matching pair of `a` and `b` in `str`, return an
+array with indexes: `[ <a index>, <b index> ]`.
+
+If there's no match, `undefined` will be returned.
+
+If the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `[ 1, 3 ]` and `{a}}` will match `[0, 2]`.
+
+## Installation
+
+With [npm](https://npmjs.org) do:
+
+```bash
+npm install balanced-match
+```
+
+## Security contact information
+
+To report a security vulnerability, please use the
+[Tidelift security contact](https://tidelift.com/security).
+Tidelift will coordinate the fix and disclosure.
+
+## License
+
+(MIT)
+
+Copyright (c) 2013 Julian Gruber &lt;julian@juliangruber.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/balanced-match/index.js

@@ -0,0 +1,62 @@
+'use strict';
+module.exports = balanced;
+function balanced(a, b, str) {
+  if (a instanceof RegExp) a = maybeMatch(a, str);
+  if (b instanceof RegExp) b = maybeMatch(b, str);
+
+  var r = range(a, b, str);
+
+  return r && {
+    start: r[0],
+    end: r[1],
+    pre: str.slice(0, r[0]),
+    body: str.slice(r[0] + a.length, r[1]),
+    post: str.slice(r[1] + b.length)
+  };
+}
+
+function maybeMatch(reg, str) {
+  var m = str.match(reg);
+  return m ? m[0] : null;
+}
+
+balanced.range = range;
+function range(a, b, str) {
+  var begs, beg, left, right, result;
+  var ai = str.indexOf(a);
+  var bi = str.indexOf(b, ai + 1);
+  var i = ai;
+
+  if (ai >= 0 && bi > 0) {
+    if(a===b) {
+      return [ai, bi];
+    }
+    begs = [];
+    left = str.length;
+
+    while (i >= 0 && !result) {
+      if (i == ai) {
+        begs.push(i);
+        ai = str.indexOf(a, i + 1);
+      } else if (begs.length == 1) {
+        result = [ begs.pop(), bi ];
+      } else {
+        beg = begs.pop();
+        if (beg < left) {
+          left = beg;
+          right = bi;
+        }
+
+        bi = str.indexOf(b, i + 1);
+      }
+
+      i = ai < bi && ai >= 0 ? ai : bi;
+    }
+
+    if (begs.length) {
+      result = [ left, right ];
+    }
+  }
+
+  return result;
+}

node_modules/balanced-match/package.json

@@ -0,0 +1,48 @@
+{
+  "name": "balanced-match",
+  "description": "Match balanced character pairs, like \"{\" and \"}\"",
+  "version": "1.0.2",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/juliangruber/balanced-match.git"
+  },
+  "homepage": "https://github.com/juliangruber/balanced-match",
+  "main": "index.js",
+  "scripts": {
+    "test": "tape test/test.js",
+    "bench": "matcha test/bench.js"
+  },
+  "devDependencies": {
+    "matcha": "^0.7.0",
+    "tape": "^4.6.0"
+  },
+  "keywords": [
+    "match",
+    "regexp",
+    "test",
+    "balanced",
+    "parse"
+  ],
+  "author": {
+    "name": "Julian Gruber",
+    "email": "mail@juliangruber.com",
+    "url": "http://juliangruber.com"
+  },
+  "license": "MIT",
+  "testling": {
+    "files": "test/*.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/20..latest",
+      "firefox/nightly",
+      "chrome/25..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  }
+}

node_modules/brace-expansion/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/brace-expansion/README.md

@@ -0,0 +1,129 @@
+# brace-expansion
+
+[Brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html), 
+as known from sh/bash, in JavaScript.
+
+[![build status](https://secure.travis-ci.org/juliangruber/brace-expansion.svg)](http://travis-ci.org/juliangruber/brace-expansion)
+[![downloads](https://img.shields.io/npm/dm/brace-expansion.svg)](https://www.npmjs.org/package/brace-expansion)
+[![Greenkeeper badge](https://badges.greenkeeper.io/juliangruber/brace-expansion.svg)](https://greenkeeper.io/)
+
+[![testling badge](https://ci.testling.com/juliangruber/brace-expansion.png)](https://ci.testling.com/juliangruber/brace-expansion)
+
+## Example
+
+```js
+var expand = require('brace-expansion');
+
+expand('file-{a,b,c}.jpg')
+// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']
+
+expand('-v{,,}')
+// => ['-v', '-v', '-v']
+
+expand('file{0..2}.jpg')
+// => ['file0.jpg', 'file1.jpg', 'file2.jpg']
+
+expand('file-{a..c}.jpg')
+// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']
+
+expand('file{2..0}.jpg')
+// => ['file2.jpg', 'file1.jpg', 'file0.jpg']
+
+expand('file{0..4..2}.jpg')
+// => ['file0.jpg', 'file2.jpg', 'file4.jpg']
+
+expand('file-{a..e..2}.jpg')
+// => ['file-a.jpg', 'file-c.jpg', 'file-e.jpg']
+
+expand('file{00..10..5}.jpg')
+// => ['file00.jpg', 'file05.jpg', 'file10.jpg']
+
+expand('{{A..C},{a..c}}')
+// => ['A', 'B', 'C', 'a', 'b', 'c']
+
+expand('ppp{,config,oe{,conf}}')
+// => ['ppp', 'pppconfig', 'pppoe', 'pppoeconf']
+```
+
+## API
+
+```js
+var expand = require('brace-expansion');
+```
+
+### var expanded = expand(str)
+
+Return an array of all possible and valid expansions of `str`. If none are
+found, `[str]` is returned.
+
+Valid expansions are:
+
+```js
+/^(.*,)+(.+)?$/
+// {a,b,...}
+```
+
+A comma separated list of options, like `{a,b}` or `{a,{b,c}}` or `{,a,}`.
+
+```js
+/^-?\d+\.\.-?\d+(\.\.-?\d+)?$/
+// {x..y[..incr]}
+```
+
+A numeric sequence from `x` to `y` inclusive, with optional increment.
+If `x` or `y` start with a leading `0`, all the numbers will be padded
+to have equal length. Negative numbers and backwards iteration work too.
+
+```js
+/^-?\d+\.\.-?\d+(\.\.-?\d+)?$/
+// {x..y[..incr]}
+```
+
+An alphabetic sequence from `x` to `y` inclusive, with optional increment.
+`x` and `y` must be exactly one character, and if given, `incr` must be a
+number.
+
+For compatibility reasons, the string `${` is not eligible for brace expansion.
+
+## Installation
+
+With [npm](https://npmjs.org) do:
+
+```bash
+npm install brace-expansion
+```
+
+## Contributors
+
+- [Julian Gruber](https://github.com/juliangruber)
+- [Isaac Z. Schlueter](https://github.com/isaacs)
+
+## Sponsors
+
+This module is proudly supported by my [Sponsors](https://github.com/juliangruber/sponsors)!
+
+Do you want to support modules like this to improve their quality, stability and weigh in on new features? Then please consider donating to my [Patreon](https://www.patreon.com/juliangruber). Not sure how much of my modules you're using? Try [feross/thanks](https://github.com/feross/thanks)!
+
+## License
+
+(MIT)
+
+Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/brace-expansion/index.js

@@ -0,0 +1,201 @@
+var concatMap = require('concat-map');
+var balanced = require('balanced-match');
+
+module.exports = expandTop;
+
+var escSlash = '\0SLASH'+Math.random()+'\0';
+var escOpen = '\0OPEN'+Math.random()+'\0';
+var escClose = '\0CLOSE'+Math.random()+'\0';
+var escComma = '\0COMMA'+Math.random()+'\0';
+var escPeriod = '\0PERIOD'+Math.random()+'\0';
+
+function numeric(str) {
+  return parseInt(str, 10) == str
+    ? parseInt(str, 10)
+    : str.charCodeAt(0);
+}
+
+function escapeBraces(str) {
+  return str.split('\\\\').join(escSlash)
+            .split('\\{').join(escOpen)
+            .split('\\}').join(escClose)
+            .split('\\,').join(escComma)
+            .split('\\.').join(escPeriod);
+}
+
+function unescapeBraces(str) {
+  return str.split(escSlash).join('\\')
+            .split(escOpen).join('{')
+            .split(escClose).join('}')
+            .split(escComma).join(',')
+            .split(escPeriod).join('.');
+}
+
+
+// Basically just str.split(","), but handling cases
+// where we have nested braced sections, which should be
+// treated as individual members, like {a,{b,c},d}
+function parseCommaParts(str) {
+  if (!str)
+    return [''];
+
+  var parts = [];
+  var m = balanced('{', '}', str);
+
+  if (!m)
+    return str.split(',');
+
+  var pre = m.pre;
+  var body = m.body;
+  var post = m.post;
+  var p = pre.split(',');
+
+  p[p.length-1] += '{' + body + '}';
+  var postParts = parseCommaParts(post);
+  if (post.length) {
+    p[p.length-1] += postParts.shift();
+    p.push.apply(p, postParts);
+  }
+
+  parts.push.apply(parts, p);
+
+  return parts;
+}
+
+function expandTop(str) {
+  if (!str)
+    return [];
+
+  // I don't know why Bash 4.3 does this, but it does.
+  // Anything starting with {} will have the first two bytes preserved
+  // but *only* at the top level, so {},a}b will not expand to anything,
+  // but a{},b}c will be expanded to [a}c,abc].
+  // One could argue that this is a bug in Bash, but since the goal of
+  // this module is to match Bash's rules, we escape a leading {}
+  if (str.substr(0, 2) === '{}') {
+    str = '\\{\\}' + str.substr(2);
+  }
+
+  return expand(escapeBraces(str), true).map(unescapeBraces);
+}
+
+function identity(e) {
+  return e;
+}
+
+function embrace(str) {
+  return '{' + str + '}';
+}
+function isPadded(el) {
+  return /^-?0\d/.test(el);
+}
+
+function lte(i, y) {
+  return i <= y;
+}
+function gte(i, y) {
+  return i >= y;
+}
+
+function expand(str, isTop) {
+  var expansions = [];
+
+  var m = balanced('{', '}', str);
+  if (!m || /\$$/.test(m.pre)) return [str];
+
+  var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body);
+  var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body);
+  var isSequence = isNumericSequence || isAlphaSequence;
+  var isOptions = m.body.indexOf(',') >= 0;
+  if (!isSequence && !isOptions) {
+    // {a},b}
+    if (m.post.match(/,.*\}/)) {
+      str = m.pre + '{' + m.body + escClose + m.post;
+      return expand(str);
+    }
+    return [str];
+  }
+
+  var n;
+  if (isSequence) {
+    n = m.body.split(/\.\./);
+  } else {
+    n = parseCommaParts(m.body);
+    if (n.length === 1) {
+      // x{{a,b}}y ==> x{a}y x{b}y
+      n = expand(n[0], false).map(embrace);
+      if (n.length === 1) {
+        var post = m.post.length
+          ? expand(m.post, false)
+          : [''];
+        return post.map(function(p) {
+          return m.pre + n[0] + p;
+        });
+      }
+    }
+  }
+
+  // at this point, n is the parts, and we know it's not a comma set
+  // with a single entry.
+
+  // no need to expand pre, since it is guaranteed to be free of brace-sets
+  var pre = m.pre;
+  var post = m.post.length
+    ? expand(m.post, false)
+    : [''];
+
+  var N;
+
+  if (isSequence) {
+    var x = numeric(n[0]);
+    var y = numeric(n[1]);
+    var width = Math.max(n[0].length, n[1].length)
+    var incr = n.length == 3
+      ? Math.abs(numeric(n[2]))
+      : 1;
+    var test = lte;
+    var reverse = y < x;
+    if (reverse) {
+      incr *= -1;
+      test = gte;
+    }
+    var pad = n.some(isPadded);
+
+    N = [];
+
+    for (var i = x; test(i, y); i += incr) {
+      var c;
+      if (isAlphaSequence) {
+        c = String.fromCharCode(i);
+        if (c === '\\')
+          c = '';
+      } else {
+        c = String(i);
+        if (pad) {
+          var need = width - c.length;
+          if (need > 0) {
+            var z = new Array(need + 1).join('0');
+            if (i < 0)
+              c = '-' + z + c.slice(1);
+            else
+              c = z + c;
+          }
+        }
+      }
+      N.push(c);
+    }
+  } else {
+    N = concatMap(n, function(el) { return expand(el, false) });
+  }
+
+  for (var j = 0; j < N.length; j++) {
+    for (var k = 0; k < post.length; k++) {
+      var expansion = pre + N[j] + post[k];
+      if (!isTop || isSequence || expansion)
+        expansions.push(expansion);
+    }
+  }
+
+  return expansions;
+}
+

node_modules/brace-expansion/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "brace-expansion",
+  "description": "Brace expansion as known from sh/bash",
+  "version": "1.1.11",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/juliangruber/brace-expansion.git"
+  },
+  "homepage": "https://github.com/juliangruber/brace-expansion",
+  "main": "index.js",
+  "scripts": {
+    "test": "tape test/*.js",
+    "gentest": "bash test/generate.sh",
+    "bench": "matcha test/perf/bench.js"
+  },
+  "dependencies": {
+    "balanced-match": "^1.0.0",
+    "concat-map": "0.0.1"
+  },
+  "devDependencies": {
+    "matcha": "^0.7.0",
+    "tape": "^4.6.0"
+  },
+  "keywords": [],
+  "author": {
+    "name": "Julian Gruber",
+    "email": "mail@juliangruber.com",
+    "url": "http://juliangruber.com"
+  },
+  "license": "MIT",
+  "testling": {
+    "files": "test/*.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/20..latest",
+      "firefox/nightly",
+      "chrome/25..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  }
+}

node_modules/braces/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2016, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

node_modules/braces/README.md

@@ -0,0 +1,248 @@
+# braces [![NPM version](https://img.shields.io/npm/v/braces.svg?style=flat)](https://www.npmjs.com/package/braces) [![NPM downloads](https://img.shields.io/npm/dm/braces.svg?style=flat)](https://npmjs.org/package/braces) [![Build Status](https://img.shields.io/travis/jonschlinkert/braces.svg?style=flat)](https://travis-ci.org/jonschlinkert/braces)
+
+Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces specification.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install braces --save
+```
+
+## Features
+
+* Complete support for the braces part of the [Bash 4.3 Brace Expansion](www.gnu.org/software/bash/). Braces passes [all of the relevant unit tests](#bash-4-3-support) from the spec.
+* Expands comma-separated values: `a/{b,c}/d` => `['a/b/d', 'a/c/d']`
+* Expands alphabetical or numerical ranges: `{1..3}` => `['1', '2', '3']`
+* [Very fast](#benchmarks)
+* [Special characters](./patterns.md) can be used to generate interesting patterns.
+
+## Example usage
+
+```js
+var braces = require('braces');
+
+braces('a/{x,y}/c{d}e')
+//=> ['a/x/cde', 'a/y/cde']
+
+braces('a/b/c/{x,y}')
+//=> ['a/b/c/x', 'a/b/c/y']
+
+braces('a/{x,{1..5},y}/c{d}e')
+//=> ['a/x/cde', 'a/1/cde', 'a/y/cde', 'a/2/cde', 'a/3/cde', 'a/4/cde', 'a/5/cde']
+```
+
+### Use case: fixtures
+
+> Use braces to generate test fixtures!
+
+**Example**
+
+```js
+var braces = require('./');
+var path = require('path');
+var fs = require('fs');
+
+braces('blah/{a..z}.js').forEach(function(fp) {
+  if (!fs.existsSync(path.dirname(fp))) {
+    fs.mkdirSync(path.dirname(fp));
+  }
+  fs.writeFileSync(fp, '');
+});
+```
+
+See the [tests](./test/test.js) for more examples and use cases (also see the [bash spec tests](./test/bash-mm-adjusted.js));
+
+### Range expansion
+
+Uses [expand-range](https://github.com/jonschlinkert/expand-range) for range expansion.
+
+```js
+braces('a{1..3}b')
+//=> ['a1b', 'a2b', 'a3b']
+
+braces('a{5..8}b')
+//=> ['a5b', 'a6b', 'a7b', 'a8b']
+
+braces('a{00..05}b')
+//=> ['a00b', 'a01b', 'a02b', 'a03b', 'a04b', 'a05b']
+
+braces('a{01..03}b')
+//=> ['a01b', 'a02b', 'a03b']
+
+braces('a{000..005}b')
+//=> ['a000b', 'a001b', 'a002b', 'a003b', 'a004b', 'a005b']
+
+braces('a{a..e}b')
+//=> ['aab', 'abb', 'acb', 'adb', 'aeb']
+
+braces('a{A..E}b')
+//=> ['aAb', 'aBb', 'aCb', 'aDb', 'aEb']
+```
+
+Pass a function as the last argument to customize range expansions:
+
+```js
+var range = braces('x{a..e}y', function (str, i) {
+  return String.fromCharCode(str) + i;
+});
+
+console.log(range);
+//=> ['xa0y', 'xb1y', 'xc2y', 'xd3y', 'xe4y']
+```
+
+See [expand-range](https://github.com/jonschlinkert/expand-range) for benchmarks, tests and the full list of range expansion features.
+
+## Options
+
+### options.makeRe
+
+Type: `Boolean`
+
+Deafault: `false`
+
+Return a regex-optimal string. If you're using braces to generate regex, this will result in dramatically faster performance.
+
+**Examples**
+
+With the default settings (`{makeRe: false}`):
+
+```js
+braces('{1..5}');
+//=> ['1', '2', '3', '4', '5']
+```
+
+With `{makeRe: true}`:
+
+```js
+braces('{1..5}', {makeRe: true});
+//=> ['[1-5]']
+
+braces('{3..9..3}', {makeRe: true});
+//=> ['(3|6|9)']
+```
+
+### options.bash
+
+Type: `Boolean`
+
+Default: `false`
+
+Enables complete support for the Bash specification. The downside is a 20-25% speed decrease.
+
+**Example**
+
+Using the default setting (`{bash: false}`):
+
+```js
+braces('a{b}c');
+//=> ['abc']
+```
+
+In bash (and minimatch), braces with one item are not expanded. To get the same result with braces, set `{bash: true}`:
+
+```js
+braces('a{b}c', {bash: true});
+//=> ['a{b}c']
+```
+
+### options.nodupes
+
+Type: `Boolean`
+
+Deafault: `true`
+
+Duplicates are removed by default. To keep duplicates, pass `{nodupes: false}` on the options
+
+## Bash 4.3 Support
+
+> Better support for Bash 4.3 than minimatch
+
+This project has comprehensive unit tests, including tests coverted from [Bash 4.3](www.gnu.org/software/bash/). Currently only 8 of 102 unit tests fail, and
+
+## Run benchmarks
+
+Install dev dependencies:
+
+```bash
+npm i -d && npm benchmark
+```
+
+### Latest results
+
+```bash
+#1: escape.js
+  brace-expansion.js x 114,934 ops/sec ±1.24% (93 runs sampled)
+  braces.js x 342,254 ops/sec ±0.84% (90 runs sampled)
+
+#2: exponent.js
+  brace-expansion.js x 12,359 ops/sec ±0.86% (96 runs sampled)
+  braces.js x 20,389 ops/sec ±0.71% (97 runs sampled)
+
+#3: multiple.js
+  brace-expansion.js x 114,469 ops/sec ±1.44% (94 runs sampled)
+  braces.js x 401,621 ops/sec ±0.87% (91 runs sampled)
+
+#4: nested.js
+  brace-expansion.js x 102,769 ops/sec ±1.55% (92 runs sampled)
+  braces.js x 314,088 ops/sec ±0.71% (98 runs sampled)
+
+#5: normal.js
+  brace-expansion.js x 157,577 ops/sec ±1.65% (91 runs sampled)
+  braces.js x 1,115,950 ops/sec ±0.74% (94 runs sampled)
+
+#6: range.js
+  brace-expansion.js x 138,822 ops/sec ±1.71% (91 runs sampled)
+  braces.js x 1,108,353 ops/sec ±0.85% (94 runs sampled)
+```
+
+## Related projects
+
+You might also be interested in these projects:
+
+* [expand-range](https://www.npmjs.com/package/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See… [more](https://www.npmjs.com/package/expand-range) | [homepage](https://github.com/jonschlinkert/expand-range)
+* [fill-range](https://www.npmjs.com/package/fill-range): Fill in a range of numbers or letters, optionally passing an increment or multiplier to… [more](https://www.npmjs.com/package/fill-range) | [homepage](https://github.com/jonschlinkert/fill-range)
+* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch)
+
+## Contributing
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/braces/issues/new).
+
+## Building docs
+
+Generate readme and API documentation with [verb](https://github.com/verbose/verb):
+
+```sh
+$ npm install verb && npm run docs
+```
+
+Or, if [verb](https://github.com/verbose/verb) is installed globally:
+
+```sh
+$ verb
+```
+
+## Running tests
+
+Install dev dependencies:
+
+```sh
+$ npm install -d && npm test
+```
+
+## Author
+
+**Jon Schlinkert**
+
+* [github/jonschlinkert](https://github.com/jonschlinkert)
+* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
+
+## License
+
+Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT license](https://github.com/jonschlinkert/braces/blob/master/LICENSE).
+
+***
+
+_This file was generated by [verb](https://github.com/verbose/verb), v0.9.0, on May 21, 2016._

node_modules/braces/index.js

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+/*!
+ * braces <https://github.com/jonschlinkert/braces>
+ *
+ * Copyright (c) 2014-2015, Jon Schlinkert.
+ * Licensed under the MIT license.
+ */
+
+'use strict';
+
+/**
+ * Module dependencies
+ */
+
+var expand = require('expand-range');
+var repeat = require('repeat-element');
+var tokens = require('preserve');
+
+/**
+ * Expose `braces`
+ */
+
+module.exports = function(str, options) {
+  if (typeof str !== 'string') {
+    throw new Error('braces expects a string');
+  }
+  return braces(str, options);
+};
+
+/**
+ * Expand `{foo,bar}` or `{1..5}` braces in the
+ * given `string`.
+ *
+ * @param  {String} `str`
+ * @param  {Array} `arr`
+ * @param  {Object} `options`
+ * @return {Array}
+ */
+
+function braces(str, arr, options) {
+  if (str === '') {
+    return [];
+  }
+
+  if (!Array.isArray(arr)) {
+    options = arr;
+    arr = [];
+  }
+
+  var opts = options || {};
+  arr = arr || [];
+
+  if (typeof opts.nodupes === 'undefined') {
+    opts.nodupes = true;
+  }
+
+  var fn = opts.fn;
+  var es6;
+
+  if (typeof opts === 'function') {
+    fn = opts;
+    opts = {};
+  }
+
+  if (!(patternRe instanceof RegExp)) {
+    patternRe = patternRegex();
+  }
+
+  var matches = str.match(patternRe) || [];
+  var m = matches[0];
+
+  switch(m) {
+    case '\\,':
+      return escapeCommas(str, arr, opts);
+    case '\\.':
+      return escapeDots(str, arr, opts);
+    case '\/.':
+      return escapePaths(str, arr, opts);
+    case ' ':
+      return splitWhitespace(str);
+    case '{,}':
+      return exponential(str, opts, braces);
+    case '{}':
+      return emptyBraces(str, arr, opts);
+    case '\\{':
+    case '\\}':
+      return escapeBraces(str, arr, opts);
+    case '${':
+      if (!/\{[^{]+\{/.test(str)) {
+        return arr.concat(str);
+      } else {
+        es6 = true;
+        str = tokens.before(str, es6Regex());
+      }
+  }
+
+  if (!(braceRe instanceof RegExp)) {
+    braceRe = braceRegex();
+  }
+
+  var match = braceRe.exec(str);
+  if (match == null) {
+    return [str];
+  }
+
+  var outter = match[1];
+  var inner = match[2];
+  if (inner === '') { return [str]; }
+
+  var segs, segsLength;
+
+  if (inner.indexOf('..') !== -1) {
+    segs = expand(inner, opts, fn) || inner.split(',');
+    segsLength = segs.length;
+
+  } else if (inner[0] === '"' || inner[0] === '\'') {
+    return arr.concat(str.split(/['"]/).join(''));
+
+  } else {
+    segs = inner.split(',');
+    if (opts.makeRe) {
+      return braces(str.replace(outter, wrap(segs, '|')), opts);
+    }
+
+    segsLength = segs.length;
+    if (segsLength === 1 && opts.bash) {
+      segs[0] = wrap(segs[0], '\\');
+    }
+  }
+
+  var len = segs.length;
+  var i = 0, val;
+
+  while (len--) {
+    var path = segs[i++];
+
+    if (/(\.[^.\/])/.test(path)) {
+      if (segsLength > 1) {
+        return segs;
+      } else {
+        return [str];
+      }
+    }
+
+    val = splice(str, outter, path);
+
+    if (/\{[^{}]+?\}/.test(val)) {
+      arr = braces(val, arr, opts);
+    } else if (val !== '') {
+      if (opts.nodupes && arr.indexOf(val) !== -1) { continue; }
+      arr.push(es6 ? tokens.after(val) : val);
+    }
+  }
+
+  if (opts.strict) { return filter(arr, filterEmpty); }
+  return arr;
+}
+
+/**
+ * Expand exponential ranges
+ *
+ *   `a{,}{,}` => ['a', 'a', 'a', 'a']
+ */
+
+function exponential(str, options, fn) {
+  if (typeof options === 'function') {
+    fn = options;
+    options = null;
+  }
+
+  var opts = options || {};
+  var esc = '__ESC_EXP__';
+  var exp = 0;
+  var res;
+
+  var parts = str.split('{,}');
+  if (opts.nodupes) {
+    return fn(parts.join(''), opts);
+  }
+
+  exp = parts.length - 1;
+  res = fn(parts.join(esc), opts);
+  var len = res.length;
+  var arr = [];
+  var i = 0;
+
+  while (len--) {
+    var ele = res[i++];
+    var idx = ele.indexOf(esc);
+
+    if (idx === -1) {
+      arr.push(ele);
+
+    } else {
+      ele = ele.split('__ESC_EXP__').join('');
+      if (!!ele && opts.nodupes !== false) {
+        arr.push(ele);
+
+      } else {
+        var num = Math.pow(2, exp);
+        arr.push.apply(arr, repeat(ele, num));
+      }
+    }
+  }
+  return arr;
+}
+
+/**
+ * Wrap a value with parens, brackets or braces,
+ * based on the given character/separator.
+ *
+ * @param  {String|Array} `val`
+ * @param  {String} `ch`
+ * @return {String}
+ */
+
+function wrap(val, ch) {
+  if (ch === '|') {
+    return '(' + val.join(ch) + ')';
+  }
+  if (ch === ',') {
+    return '{' + val.join(ch) + '}';
+  }
+  if (ch === '-') {
+    return '[' + val.join(ch) + ']';
+  }
+  if (ch === '\\') {
+    return '\\{' + val + '\\}';
+  }
+}
+
+/**
+ * Handle empty braces: `{}`
+ */
+
+function emptyBraces(str, arr, opts) {
+  return braces(str.split('{}').join('\\{\\}'), arr, opts);
+}
+
+/**
+ * Filter out empty-ish values
+ */
+
+function filterEmpty(ele) {
+  return !!ele && ele !== '\\';
+}
+
+/**
+ * Handle patterns with whitespace
+ */
+
+function splitWhitespace(str) {
+  var segs = str.split(' ');
+  var len = segs.length;
+  var res = [];
+  var i = 0;
+
+  while (len--) {
+    res.push.apply(res, braces(segs[i++]));
+  }
+  return res;
+}
+
+/**
+ * Handle escaped braces: `\\{foo,bar}`
+ */
+
+function escapeBraces(str, arr, opts) {
+  if (!/\{[^{]+\{/.test(str)) {
+    return arr.concat(str.split('\\').join(''));
+  } else {
+    str = str.split('\\{').join('__LT_BRACE__');
+    str = str.split('\\}').join('__RT_BRACE__');
+    return map(braces(str, arr, opts), function(ele) {
+      ele = ele.split('__LT_BRACE__').join('{');
+      return ele.split('__RT_BRACE__').join('}');
+    });
+  }
+}
+
+/**
+ * Handle escaped dots: `{1\\.2}`
+ */
+
+function escapeDots(str, arr, opts) {
+  if (!/[^\\]\..+\\\./.test(str)) {
+    return arr.concat(str.split('\\').join(''));
+  } else {
+    str = str.split('\\.').join('__ESC_DOT__');
+    return map(braces(str, arr, opts), function(ele) {
+      return ele.split('__ESC_DOT__').join('.');
+    });
+  }
+}
+
+/**
+ * Handle escaped dots: `{1\\.2}`
+ */
+
+function escapePaths(str, arr, opts) {
+  str = str.split('\/.').join('__ESC_PATH__');
+  return map(braces(str, arr, opts), function(ele) {
+    return ele.split('__ESC_PATH__').join('\/.');
+  });
+}
+
+/**
+ * Handle escaped commas: `{a\\,b}`
+ */
+
+function escapeCommas(str, arr, opts) {
+  if (!/\w,/.test(str)) {
+    return arr.concat(str.split('\\').join(''));
+  } else {
+    str = str.split('\\,').join('__ESC_COMMA__');
+    return map(braces(str, arr, opts), function(ele) {
+      return ele.split('__ESC_COMMA__').join(',');
+    });
+  }
+}
+
+/**
+ * Regex for common patterns
+ */
+
+function patternRegex() {
+  return /\${|( (?=[{,}])|(?=[{,}]) )|{}|{,}|\\,(?=.*[{}])|\/\.(?=.*[{}])|\\\.(?={)|\\{|\\}/;
+}
+
+/**
+ * Braces regex.
+ */
+
+function braceRegex() {
+  return /.*(\\?\{([^}]+)\})/;
+}
+
+/**
+ * es6 delimiter regex.
+ */
+
+function es6Regex() {
+  return /\$\{([^}]+)\}/;
+}
+
+var braceRe;
+var patternRe;
+
+/**
+ * Faster alternative to `String.replace()` when the
+ * index of the token to be replaces can't be supplied
+ */
+
+function splice(str, token, replacement) {
+  var i = str.indexOf(token);
+  return str.substr(0, i) + replacement
+    + str.substr(i + token.length);
+}
+
+/**
+ * Fast array map
+ */
+
+function map(arr, fn) {
+  if (arr == null) {
+    return [];
+  }
+
+  var len = arr.length;
+  var res = new Array(len);
+  var i = -1;
+
+  while (++i < len) {
+    res[i] = fn(arr[i], i, arr);
+  }
+
+  return res;
+}
+
+/**
+ * Fast array filter
+ */
+
+function filter(arr, cb) {
+  if (arr == null) return [];
+  if (typeof cb !== 'function') {
+    throw new TypeError('braces: filter expects a callback function.');
+  }
+
+  var len = arr.length;
+  var res = arr.slice();
+  var i = 0;
+
+  while (len--) {
+    if (!cb(arr[len], i++)) {
+      res.splice(len, 1);
+    }
+  }
+  return res;
+}

node_modules/braces/package.json

@@ -0,0 +1,83 @@
+{
+  "name": "braces",
+  "description": "Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces specification.",
+  "version": "1.8.5",
+  "homepage": "https://github.com/jonschlinkert/braces",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "repository": "jonschlinkert/braces",
+  "bugs": {
+    "url": "https://github.com/jonschlinkert/braces/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "dependencies": {
+    "expand-range": "^1.8.1",
+    "preserve": "^0.2.0",
+    "repeat-element": "^1.1.2"
+  },
+  "devDependencies": {
+    "benchmarked": "^0.1.5",
+    "brace-expansion": "^1.1.3",
+    "chalk": "^1.1.3",
+    "gulp-format-md": "^0.1.8",
+    "minimatch": "^3.0.0",
+    "minimist": "^1.2.0",
+    "mocha": "^2.4.5",
+    "should": "^8.3.1"
+  },
+  "keywords": [
+    "alpha",
+    "alphabetical",
+    "bash",
+    "brace",
+    "expand",
+    "expansion",
+    "filepath",
+    "fill",
+    "fs",
+    "glob",
+    "globbing",
+    "letter",
+    "match",
+    "matches",
+    "matching",
+    "number",
+    "numerical",
+    "path",
+    "range",
+    "ranges",
+    "sh"
+  ],
+  "verb": {
+    "plugins": [
+      "gulp-format-md"
+    ],
+    "reflinks": [
+      "verb"
+    ],
+    "toc": false,
+    "layout": "default",
+    "lint": {
+      "reflinks": true
+    },
+    "tasks": [
+      "readme"
+    ],
+    "related": {
+      "list": [
+        "micromatch",
+        "expand-range",
+        "fill-range"
+      ]
+    }
+  }
+}