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deps: add acorn stage-3 plugins
This adds bigint, class-fields, numeric-separators, static-class features, private class methods and fields as dependency. That way it's possible to use these in combination with acorn to parse these language features. This also removes a couple of files that were not necessary for Node.js to reduce the code base. PR-URL: #27400 Refs: #27391 Refs: #25835 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com>
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‎LICENSE‎

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@@ -74,6 +74,29 @@ The externally maintained libraries used by Node.js are:
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THE SOFTWARE.
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"""
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- Acorn plugins, located at deps/acorn-plugins, is licensed as follows:
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"""
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Copyright (C) 2017-2018 by Adrian Heine
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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"""
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- c-ares, located at deps/cares, is licensed as follows:
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"""
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Copyright (c) 2007 - 2018, Daniel Stenberg with many contributors, see AUTHORS

‎deps/acorn-plugins/acorn-bigint/CHANGELOG.md‎

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## 0.4.0 (2019-04-04)
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* Make compatible with acorn-numeric-separator
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## 0.3.1 (2018-10-06)
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* Fix creation of BigInt values everywhere (Thanks, Gus Caplan!)
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## 0.3.0 (2018-09-14)
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* Update to new acorn 6 interface
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* Actually support creating BigInt values in AST in Chrome
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* Change license to MIT
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## 0.2.0 (2017-12-20)
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* Emit BigInt values in AST if supported by runtime engine
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## 0.1.0 (2017-12-19)
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Initial release

‎deps/acorn-plugins/acorn-bigint/LICENSE‎

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Copyright (C) 2017-2018 by Adrian Heine
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.

‎deps/acorn-plugins/acorn-bigint/README.md‎

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# BigInt support for Acorn
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[![NPM version](https://img.shields.io/npm/v/acorn-bigint.svg)](https://www.npmjs.org/package/acorn-bigint)
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This is a plugin for [Acorn](http://marijnhaverbeke.nl/acorn/) - a tiny, fast JavaScript parser, written completely in JavaScript.
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It implements support for arbitrary precision integers as defined in the stage 3 proposal [BigInt: Arbitrary precision integers in JavaScript](https://github.com/tc39/proposal-bigint). The emitted AST follows [an ESTree proposal](https://github.com/estree/estree/blob/132be9b9ec376adbc082dd5f6ba78aefd7a1a864/experimental/bigint.md).
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## Usage
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This module provides a plugin that can be used to extend the Acorn `Parser` class:
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```javascript
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const {Parser} =require('acorn');
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constbigInt=require('acorn-bigint');
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Parser.extend(bigInt).parse('100n');
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```
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## License
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This plugin is released under an [MIT License](./LICENSE).

‎deps/acorn-plugins/acorn-bigint/index.js‎

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"use strict"
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constacorn=require('internal/deps/acorn/acorn/dist/acorn')
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consttt=acorn.tokTypes
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constisIdentifierStart=acorn.isIdentifierStart
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module.exports=function(Parser){
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returnclassextendsParser{
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parseLiteral(value){
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constnode=super.parseLiteral(value)
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if(node.raw.charCodeAt(node.raw.length-1)==110)node.bigint=this.getNumberInput(node.start,node.end)
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returnnode
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}
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readRadixNumber(radix){
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letstart=this.pos
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this.pos+=2// 0x
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letval=this.readInt(radix)
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if(val===null)this.raise(this.start+2,`Expected number in radix ${radix}`)
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if(this.input.charCodeAt(this.pos)==110){
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letstr=this.getNumberInput(start,this.pos)
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val=typeofBigInt!=="undefined" ? BigInt(str) : null
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++this.pos
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}elseif(isIdentifierStart(this.fullCharCodeAtPos()))this.raise(this.pos,"Identifier directly after number")
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returnthis.finishToken(tt.num,val)
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}
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readNumber(startsWithDot){
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letstart=this.pos
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// Not an int
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if(startsWithDot)returnsuper.readNumber(startsWithDot)
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// Legacy octal
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if(this.input.charCodeAt(start)===48&&this.input.charCodeAt(start+1)!==110){
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returnsuper.readNumber(startsWithDot)
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}
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if(this.readInt(10)===null)this.raise(start,"Invalid number")
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// Not a BigInt, reset and parse again
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if(this.input.charCodeAt(this.pos)!=110){
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this.pos=start
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returnsuper.readNumber(startsWithDot)
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}
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letstr=this.getNumberInput(start,this.pos)
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letval=typeofBigInt!=="undefined" ? BigInt(str) : null
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++this.pos
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returnthis.finishToken(tt.num,val)
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}
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// This is basically a hook for acorn-numeric-separator
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getNumberInput(start,end){
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if(super.getNumberInput)returnsuper.getNumberInput(start,end)
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returnthis.input.slice(start,end)
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}
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}
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}

‎deps/acorn-plugins/acorn-bigint/package.json‎

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{
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"_from": "acorn-bigint",
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"_id": "acorn-bigint@0.4.0",
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"_inBundle": false,
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"_integrity": "sha512-W9iaqWzqFo7ZBLmI9dMjHYGrN0Nm/ZgToqhvd3RELJux7RsX6k1/80h+bD9TtTpeKky/kYNbr3+vHWqI3hdyfA==",
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"_location": "/acorn-bigint",
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"_phantomChildren": {},
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"_requested": {
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"type": "tag",
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"registry": true,
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"raw": "acorn-bigint",
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"name": "acorn-bigint",
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"escapedName": "acorn-bigint",
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"rawSpec": "",
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"saveSpec": null,
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"fetchSpec": "latest"
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},
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"_requiredBy": [
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"#USER",
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"/"
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],
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"_resolved": "https://registry.npmjs.org/acorn-bigint/-/acorn-bigint-0.4.0.tgz",
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"_shasum": "af3245ed8a7c3747387fca4680ae1960f617c4cd",
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"_spec": "acorn-bigint",
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"_where": "/home/ruben/repos/node/node",
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"bugs": {
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"url": "https://github.com/acornjs/acorn-bigint/issues"
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},
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"bundleDependencies": false,
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"contributors": [
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{
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"name": "Adrian Heine",
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"email": "mail@adrianheine.de"
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}
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],
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"deprecated": false,
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"description": "Support for BigInt in acorn",
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"devDependencies": {
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"acorn": "^6.1.1",
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"eslint": "^5.16.0",
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"eslint-plugin-node": "^8.0.1",
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"mocha": "^6.0.2",
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"test262": "git+https://github.com/tc39/test262.git#611919174ffe060503691a0c7e3eb2a65b646124",
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"test262-parser-runner": "^0.5.0"
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},
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"engines": {
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"node": ">=4.8.2"
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},
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"homepage": "https://github.com/acornjs/acorn-bigint",
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"license": "MIT",
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"name": "acorn-bigint",
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"peerDependencies": {
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"acorn": "^6.0.0"
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},
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"repository": {
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"type": "git",
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"url": "git+https://github.com/acornjs/acorn-bigint.git"
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},
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"scripts": {
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"lint": "eslint -c .eslintrc.json .",
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"test": "mocha",
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"test:test262": "node run_test262.js"
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},
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"version": "0.4.0"
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}

‎deps/acorn-plugins/acorn-class-fields/CHANGELOG.md‎

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## 0.3.1 (2019-02-09)
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* Restore compatibility with acorn-private-methods
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## 0.3.0 (2019-02-09)
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* Require acorn >= 6.1.0
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## 0.2.1 (2018-11-06)
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* Adapt to changes in acorn 6.0.3
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## 0.2.0 (2018-09-14)
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* Update to new acorn 6 interface
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* Change license to MIT
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## 0.1.2 (2018-01-26)
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* Don't accept whitespace between hash and private name
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## 0.1.1 (2018-01-17)
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* Correctly parse all fields named `async`
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## 0.1.0 (2018-01-13)
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Initial release

‎deps/acorn-plugins/acorn-class-fields/LICENSE‎

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Copyright (C) 2017-2018 by Adrian Heine
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.

‎deps/acorn-plugins/acorn-class-fields/README.md‎

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# Class fields support for Acorn
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[![NPM version](https://img.shields.io/npm/v/acorn-class-fields.svg)](https://www.npmjs.org/package/acorn-class-fields)
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This is a plugin for [Acorn](http://marijnhaverbeke.nl/acorn/) - a tiny, fast JavaScript parser, written completely in JavaScript.
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It implements support for class fields as defined in the stage 3 proposal [Class field declarations for JavaScript](https://github.com/tc39/proposal-class-fields). The emitted AST follows [an ESTree proposal](https://github.com/estree/estree/pull/180).
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## Usage
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This module provides a plugin that can be used to extend the Acorn `Parser` class:
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```javascript
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const {Parser} =require('acorn');
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constclassFields=require('acorn-class-fields');
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Parser.extend(classFields).parse('class X { x = 0 }');
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```
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## License
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This plugin is released under an [MIT License](./LICENSE).

‎deps/acorn-plugins/acorn-class-fields/index.js‎

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"use strict"
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constacorn=require('internal/deps/acorn/acorn/dist/acorn')
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consttt=acorn.tokTypes
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constprivateClassElements=require('internal/deps/acorn-plugins/acorn-private-class-elements/index')
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functionmaybeParseFieldValue(field){
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if(this.eat(tt.eq)){
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constoldInFieldValue=this._inFieldValue
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this._inFieldValue=true
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field.value=this.parseExpression()
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this._inFieldValue=oldInFieldValue
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}elsefield.value=null
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}
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module.exports=function(Parser){
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Parser=privateClassElements(Parser)
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returnclassextendsParser{
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// Parse fields
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parseClassElement(_constructorAllowsSuper){
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if(this.options.ecmaVersion>=8&&(this.type==tt.name||this.type==this.privateNameToken||this.type==tt.bracketL||this.type==tt.string)){
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constbranch=this._branch()
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if(branch.type==tt.bracketL){
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letcount=0
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do{
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if(branch.eat(tt.bracketL))++count
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elseif(branch.eat(tt.bracketR))--count
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elsebranch.next()
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}while(count>0)
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}elsebranch.next()
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if(branch.type==tt.eq||branch.canInsertSemicolon()||branch.type==tt.semi){
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constnode=this.startNode()
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if(this.type==this.privateNameToken){
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this.parsePrivateClassElementName(node)
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}else{
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this.parsePropertyName(node)
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}
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if((node.key.type==="Identifier"&&node.key.name==="constructor")||
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(node.key.type==="Literal"&&node.key.value==="constructor")){
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this.raise(node.key.start,"Classes may not have a field called constructor")
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}
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maybeParseFieldValue.call(this,node)
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this.finishNode(node,"FieldDefinition")
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this.semicolon()
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returnnode
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}
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}
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returnsuper.parseClassElement.apply(this,arguments)
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}
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// Prohibit arguments in class field initializers
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parseIdent(liberal,isBinding){
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constident=super.parseIdent(liberal,isBinding)
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if(this._inFieldValue&&ident.name=="arguments")this.raise(ident.start,"A class field initializer may not contain arguments")
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returnident
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}
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}
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}

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