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deps: import acorn@5.7.2

Imported from the tarball published on npm
(https://registry.npmjs.org/acorn/-/acorn-5.7.2.tgz).

Update to emcaScript version 10 in order to get support for
binding-less catch statements.

Also needed to parse node.js lib API in #22405.

PR-URL: #22488
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: John-David Dalton <john.david.dalton@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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rubys committed Aug 23, 2018
1 parent 317b894 commit 49bfc37241b0d306635c54c850f10669f07ff22c
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@@ -53,7 +53,7 @@ The externally maintained libraries used by Node.js are:
- Acorn, located at deps/acorn, is licensed as follows:
"""
Copyright (C) 2012-2017 by various contributors (see AUTHORS)
Copyright (C) 2012-2018 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
View
@@ -1,5 +1,6 @@
List of Acorn contributors. Updated before every release.
Adrian Heine
Adrian Rakovsky
Alistair Braidwood
Amila Welihinda
@@ -8,14 +9,19 @@ Angelo
Aparajita Fishman
Arian Stolwijk
Artem Govorov
Boopesh Mahendran
Bradley Heinz
Brandon Mills
Charles Hughes
Charmander
Chris McKnight
Conrad Irwin
Daniel Tschinder
David Bonnet
Domenico Matteo
ehmicky
Eugene Obrezkov
Felix Maier
Forbes Lindesay
Gilad Peleg
impinball
@@ -34,6 +40,7 @@ Keheliya Gallaba
Kevin Irish
Kevin Kwok
krator
laosb
Marek
Marijn Haverbeke
Martin Carlberg
@@ -60,6 +67,7 @@ Richard Gibson
Rich Harris
Sebastian McKenzie
Shahar Soel
Sheel Bedi
Simen Bekkhus
Teddy Katz
Timothy Gu
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@@ -1,3 +1,129 @@
## 5.7.2 (2018-08-24)
### Bug fixes
Properly handle `allowAwaitOutsideFunction` in for statements.
Treat function declarations at the top level of modules like let bindings.
Don't allow async function declarations as the only statement under a label.
## 5.7.1 (2018-06-15)
### Bug fixes
Make sure the walker and bin files are rebuilt on release (the previous release didn't get the up-to-date versions).
## 5.7.0 (2018-06-15)
### Bug fixes
Fix crash in walker when walking a binding-less catch node.
### New features
Upgraded to Unicode 11.
## 5.6.2 (2018-06-05)
### Bug fixes
In the walker, go back to allowing the `baseVisitor` argument to be null to default to the default base everywhere.
## 5.6.1 (2018-06-01)
### Bug fixes
Fix regression when passing `null` as fourth argument to `walk.recursive`.
## 5.6.0 (2018-05-31)
### Bug fixes
Fix a bug in the walker that caused a crash when walking an object pattern spread.
### New features
Allow U+2028 and U+2029 in string when ECMAVersion >= 10.
Allow binding-less catch statements when ECMAVersion >= 10.
Add `allowAwaitOutsideFunction` option for parsing top-level `await`.
## 5.5.3 (2018-03-08)
### Bug fixes
A _second_ republish of the code in 5.5.1, this time with yarn, to hopefully get valid timestamps.
## 5.5.2 (2018-03-08)
### Bug fixes
A republish of the code in 5.5.1 in an attempt to solve an issue with the file timestamps in the npm package being 0.
## 5.5.1 (2018-03-06)
### Bug fixes
Fix regression in walker causing property values in object patterns to be walked as expressions.
Fix misleading error message for octal escapes in template strings.
## 5.5.0 (2018-02-27)
### Bug fixes
Support object spread in the AST walker.
### New features
The identifier character categorization is now based on Unicode version 10.
Acorn will now validate the content of regular expressions, including new ES9 features.
## 5.4.1 (2018-02-02)
### Bug fixes
5.4.0 somehow accidentally included an old version of walk.js.
## 5.4.0 (2018-02-01)
### Bug fixes
Disallow duplicate or escaped flags on regular expressions.
Disallow octal escapes in strings in strict mode.
### New features
Add support for async iteration.
Add support for object spread and rest.
## 5.3.0 (2017-12-28)
### Bug fixes
Fix parsing of floating point literals with leading zeroes in loose mode.
Allow duplicate property names in object patterns.
Don't allow static class methods named `prototype`.
Disallow async functions directly under `if` or `else`.
Parse right-hand-side of `for`/`of` as an assignment expression.
Stricter parsing of `for`/`in`.
Don't allow unicode escapes in contextual keywords.
### New features
Parsing class members was factored into smaller methods to allow plugins to hook into it.
## 5.2.1 (2017-10-30)
### Bug fixes
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@@ -1,4 +1,4 @@
Copyright (C) 2012-2017 by various contributors (see AUTHORS)
Copyright (C) 2012-2018 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
View
@@ -1,6 +1,6 @@
# Acorn
[![Build Status](https://travis-ci.org/ternjs/acorn.svg?branch=master)](https://travis-ci.org/ternjs/acorn)
[![Build Status](https://travis-ci.org/acornjs/acorn.svg?branch=master)](https://travis-ci.org/acornjs/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/)
@@ -10,11 +10,11 @@ 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).
[MIT license](https://github.com/acornjs/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
[report bugs](https://github.com/acornjs/acorn/issues) or create pull
requests on [github](https://github.com/acornjs/acorn). For questions
and discussion, please use the
[Tern discussion forum](https://discuss.ternjs.net).
@@ -28,10 +28,13 @@ The easiest way to install acorn is with [`npm`][npm].
npm install acorn
```
Alternately, download the source.
Alternately, you can download the source and build acorn yourself:
```sh
git clone https://github.com/ternjs/acorn.git
git clone https://github.com/acornjs/acorn.git
cd acorn
npm install
npm run build
```
## Components
@@ -63,7 +66,7 @@ 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), 8 (2017), or 9 (2018, partial
either 3, 5, 6 (2015), 7 (2016), 8 (2017), 9 (2018) or 10 (2019, partial
support). This influences support for strict mode, the set of
reserved words, and support for new syntax features. Default is 7.
@@ -97,6 +100,8 @@ object referring to that same position.
declarations can only appear at a program's top level. Setting this
option to `true` allows them anywhere where a statement is allowed.
- **allowAwaitOutsideFunction**: By default, `await` expressions can only appear inside `async` functions. Setting this option to `true` allows to have top-level `await` expressions. They are still not allowed in non-`async` functions, though.
- **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.
@@ -351,7 +356,7 @@ 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|--ecma8|--ecma9`: Sets the ECMAScript version
- `--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|--ecma10`: Sets the ECMAScript version
to parse. Default is version 7.
- `--module`: Sets the parsing mode to `"module"`. Is set to `"script"` otherwise.
@@ -443,10 +448,20 @@ looseParser.extend("readToken", function(nextMethod) {
### 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
- [`acorn-object-rest-spread`](https://github.com/victor-homyakov/acorn-object-rest-spread) Parse [Object Rest/Spread Properties proposal](https://github.com/tc39/proposal-object-rest-spread), works with latest Acorn version (5.0.3)
- [`acorn-static-class-property-initializer`](https://github.com/victor-homyakov/acorn-static-class-property-initializer) Partial support for static class properties from [ES Class Fields & Static Properties Proposal](https://github.com/tc39/proposal-class-public-fields) to support static property initializers in [React components written as ES6+ classes](https://babeljs.io/blog/2015/06/07/react-on-es6-plus)
- [`acorn-objj`](https://github.com/cappuccino/acorn-objj): [Objective-J](http://www.cappuccino-project.org/learn/objective-j.html) language parser built as Acorn plugin
Plugins for ECMAScript proposals:
- [`acorn-stage3`](https://github.com/acornjs/acorn-stage3): Parse most stage 3 proposals, bundling:
- [`acorn-async-iteration`](https://github.com/acornjs/acorn-async-iteration): Parse [async iteration proposal](https://github.com/tc39/proposal-async-iteration)
- [`acorn-bigint`](https://github.com/acornjs/acorn-bigint): Parse [BigInt proposal](https://github.com/tc39/proposal-bigint)
- [`acorn-class-fields`](https://github.com/acornjs/acorn-class-fields): Parse [class fields proposal](https://github.com/tc39/proposal-class-fields)
- [`acorn-dynamic-import`](https://github.com/kesne/acorn-dynamic-import): Parse [import() proposal](https://github.com/tc39/proposal-dynamic-import)
- [`acorn-import-meta`](https://github.com/acornjs/acorn-import-meta): Parse [import.meta proposal](https://github.com/tc39/proposal-import-meta)
- [`acorn-numeric-separator`](https://github.com/acornjs/acorn-numeric-separator): Parse [numeric separator proposal](https://github.com/tc39/proposal-numeric-separator)
- [`acorn-optional-catch-binding`](https://github.com/acornjs/acorn-optional-catch-binding): Parse [optional catch binding proposal](https://github.com/tc39/proposal-optional-catch-binding)
- [`acorn-private-methods`](https://github.com/acornjs/acorn-private-methods): parse [private methods, getters and setters proposal](https://github.com/tc39/proposal-private-methods)
- [`acorn5-object-spread`](https://github.com/adrianheine/acorn5-object-spread): Parse [Object Rest/Spread Properties proposal](https://github.com/tc39/proposal-object-rest-spread)
- [`acorn-object-rest-spread`](https://github.com/victor-homyakov/acorn-object-rest-spread): Parse [Object Rest/Spread Properties proposal](https://github.com/tc39/proposal-object-rest-spread)
- [`acorn-es7`](https://github.com/angelozerr/acorn-es7): Parse [decorator syntax proposal](https://github.com/wycats/javascript-decorators)
- [`acorn-static-class-property-initializer`](https://github.com/victor-homyakov/acorn-static-class-property-initializer): Partial support for static class properties from [ES Class Fields & Static Properties Proposal](https://github.com/tc39/proposal-class-public-fields) to support static property initializers in [React components written as ES6+ classes](https://babeljs.io/blog/2015/06/07/react-on-es6-plus)
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@@ -0,0 +1,69 @@
#!/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|--ecma8|--ecma9|...|--ecma2015|--ecma2016|--ecma2017|--ecma2018|...]");
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;
try {
if (!tokenize) {
result = acorn.parse(code, options);
} else {
result = [];
var tokenizer$$1 = acorn.tokenizer(code, options), token;
do {
token = tokenizer$$1.getToken();
result.push(token);
} while (token.type !== acorn.tokTypes.eof)
}
} catch (e) {
console.error(e.message);
process.exit(1);
}
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); });
}
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