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508 lines
11 KiB
508 lines
11 KiB
## 5.7.3 (2018-09-10) |
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### Bug fixes |
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Fix failure to tokenize regexps after expressions like `x.of`. |
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Better error message for unterminated template literals. |
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## 5.7.2 (2018-08-24) |
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### Bug fixes |
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Properly handle `allowAwaitOutsideFunction` in for statements. |
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Treat function declarations at the top level of modules like let bindings. |
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Don't allow async function declarations as the only statement under a label. |
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## 5.7.1 (2018-06-15) |
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### Bug fixes |
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Make sure the walker and bin files are rebuilt on release (the previous release didn't get the up-to-date versions). |
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## 5.7.0 (2018-06-15) |
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### Bug fixes |
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Fix crash in walker when walking a binding-less catch node. |
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### New features |
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Upgraded to Unicode 11. |
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## 5.6.2 (2018-06-05) |
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### Bug fixes |
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In the walker, go back to allowing the `baseVisitor` argument to be null to default to the default base everywhere. |
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## 5.6.1 (2018-06-01) |
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### Bug fixes |
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Fix regression when passing `null` as fourth argument to `walk.recursive`. |
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## 5.6.0 (2018-05-31) |
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### Bug fixes |
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Fix a bug in the walker that caused a crash when walking an object pattern spread. |
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### New features |
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Allow U+2028 and U+2029 in string when ECMAVersion >= 10. |
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Allow binding-less catch statements when ECMAVersion >= 10. |
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Add `allowAwaitOutsideFunction` option for parsing top-level `await`. |
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## 5.5.3 (2018-03-08) |
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### Bug fixes |
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A _second_ republish of the code in 5.5.1, this time with yarn, to hopefully get valid timestamps. |
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## 5.5.2 (2018-03-08) |
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### Bug fixes |
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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. |
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## 5.5.1 (2018-03-06) |
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### Bug fixes |
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Fix regression in walker causing property values in object patterns to be walked as expressions. |
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Fix misleading error message for octal escapes in template strings. |
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## 5.5.0 (2018-02-27) |
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### Bug fixes |
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Support object spread in the AST walker. |
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### New features |
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The identifier character categorization is now based on Unicode version 10. |
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Acorn will now validate the content of regular expressions, including new ES9 features. |
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## 5.4.1 (2018-02-02) |
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### Bug fixes |
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5.4.0 somehow accidentally included an old version of walk.js. |
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## 5.4.0 (2018-02-01) |
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### Bug fixes |
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Disallow duplicate or escaped flags on regular expressions. |
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Disallow octal escapes in strings in strict mode. |
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### New features |
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Add support for async iteration. |
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Add support for object spread and rest. |
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## 5.3.0 (2017-12-28) |
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### Bug fixes |
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Fix parsing of floating point literals with leading zeroes in loose mode. |
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Allow duplicate property names in object patterns. |
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Don't allow static class methods named `prototype`. |
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Disallow async functions directly under `if` or `else`. |
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Parse right-hand-side of `for`/`of` as an assignment expression. |
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Stricter parsing of `for`/`in`. |
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Don't allow unicode escapes in contextual keywords. |
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### New features |
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Parsing class members was factored into smaller methods to allow plugins to hook into it. |
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## 5.2.1 (2017-10-30) |
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### Bug fixes |
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Fix a token context corruption bug. |
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## 5.2.0 (2017-10-30) |
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### Bug fixes |
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Fix token context tracking for `class` and `function` in property-name position. |
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Make sure `%*` isn't parsed as a valid operator. |
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The `full` and `fullAncestor` walkers no longer visit nodes multiple times. |
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Allow shorthand properties `get` and `set` to be followed by default values. |
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Disallow `super` when not in callee or object position. |
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### New features |
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Support [`directive` property](https://github.com/estree/estree/compare/b3de58c9997504d6fba04b72f76e6dd1619ee4eb...1da8e603237144f44710360f8feb7a9977e905e0) on directive expression statements. |
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## 5.1.2 (2017-09-04) |
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### Bug fixes |
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Disable parsing of legacy HTML-style comments in modules. |
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Fix parsing of async methods whose names are keywords. |
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## 5.1.1 (2017-07-06) |
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### Bug fixes |
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Fix problem with disambiguating regexp and division after a class. |
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## 5.1.0 (2017-07-05) |
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### Bug fixes |
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Fix tokenizing of regexps in an object-desctructuring `for`/`of` loop and after `yield`. |
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Parse zero-prefixed numbers with non-octal digits as decimal. |
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Allow object/array patterns in rest parameters. |
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Don't error when `yield` is used as a property name. |
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Allow `async` as a shorthand object property. |
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Make the ES module version of the loose parser actually work. |
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### New features |
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Implement the [template literal revision proposal](https://github.com/tc39/proposal-template-literal-revision) for ES9. |
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New walker functions `full` and `fullAncestor`. |
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## 5.0.3 (2017-04-01) |
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### Bug fixes |
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Fix spurious duplicate variable definition errors for named functions. |
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## 5.0.2 (2017-03-30) |
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### Bug fixes |
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A binary operator after a parenthesized arrow expression is no longer incorrectly treated as an error. |
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## 5.0.0 (2017-03-28) |
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### Bug fixes |
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Raise an error for duplicated lexical bindings. |
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Fix spurious error when an assignement expression occurred after a spread expression. |
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Accept regular expressions after `of` (in `for`/`of`), `yield` (in a generator), and braced arrow functions. |
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Allow labels in front or `var` declarations, even in strict mode. |
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### Breaking changes |
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Parse declarations following `export default` as declaration nodes, not expressions. This means that class and function declarations nodes can now have `null` as their `id`. |
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## 4.0.11 (2017-02-07) |
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### Bug fixes |
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Allow all forms of member expressions to be parenthesized as lvalue. |
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## 4.0.10 (2017-02-07) |
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### Bug fixes |
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Don't expect semicolons after default-exported functions or classes, |
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even when they are expressions. |
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Check for use of `'use strict'` directives in non-simple parameter |
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functions, even when already in strict mode. |
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## 4.0.9 (2017-02-06) |
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### Bug fixes |
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Fix incorrect error raised for parenthesized simple assignment |
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targets, so that `(x) = 1` parses again. |
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## 4.0.8 (2017-02-03) |
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### Bug fixes |
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Solve spurious parenthesized pattern errors by temporarily erring on |
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the side of accepting programs that our delayed errors don't handle |
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correctly yet. |
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## 4.0.7 (2017-02-02) |
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### Bug fixes |
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Accept invalidly rejected code like `(x).y = 2` again. |
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Don't raise an error when a function _inside_ strict code has a |
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non-simple parameter list. |
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## 4.0.6 (2017-02-02) |
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### Bug fixes |
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Fix exponential behavior (manifesting itself as a complete hang for |
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even relatively small source files) introduced by the new 'use strict' |
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check. |
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## 4.0.5 (2017-02-02) |
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### Bug fixes |
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Disallow parenthesized pattern expressions. |
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Allow keywords as export names. |
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Don't allow the `async` keyword to be parenthesized. |
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Properly raise an error when a keyword contains a character escape. |
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Allow `"use strict"` to appear after other string literal expressions. |
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Disallow labeled declarations. |
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## 4.0.4 (2016-12-19) |
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### Bug fixes |
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Fix issue with loading acorn_loose.js with an AMD loader. |
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Fix crash when `export` was followed by a keyword that can't be |
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exported. |
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## 4.0.3 (2016-08-16) |
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### Bug fixes |
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Allow regular function declarations inside single-statement `if` |
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branches in loose mode. Forbid them entirely in strict mode. |
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Properly parse properties named `async` in ES2017 mode. |
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Fix bug where reserved words were broken in ES2017 mode. |
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## 4.0.2 (2016-08-11) |
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### Bug fixes |
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Don't ignore period or 'e' characters after octal numbers. |
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Fix broken parsing for call expressions in default parameter values |
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of arrow functions. |
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## 4.0.1 (2016-08-08) |
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### Bug fixes |
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Fix false positives in duplicated export name errors. |
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## 4.0.0 (2016-08-07) |
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### Breaking changes |
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The default `ecmaVersion` option value is now 7. |
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A number of internal method signatures changed, so plugins might need |
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to be updated. |
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### Bug fixes |
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The parser now raises errors on duplicated export names. |
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`arguments` and `eval` can now be used in shorthand properties. |
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Duplicate parameter names in non-simple argument lists now always |
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produce an error. |
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### New features |
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The `ecmaVersion` option now also accepts year-style version numbers |
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(2015, etc). |
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Support for `async`/`await` syntax when `ecmaVersion` is >= 8. |
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Support for trailing commas in call expressions when `ecmaVersion` |
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is >= 8. |
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## 3.3.0 (2016-07-25) |
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### Bug fixes |
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Fix bug in tokenizing of regexp operator after a function declaration. |
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Fix parser crash when parsing an array pattern with a hole. |
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### New features |
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Implement check against complex argument lists in functions that |
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enable strict mode in ES7. |
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## 3.2.0 (2016-06-07) |
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### Bug fixes |
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Improve handling of lack of unicode regexp support in host |
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environment. |
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Properly reject shorthand properties whose name is a keyword. |
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Don't crash when the loose parser is called without options object. |
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### New features |
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Visitors created with `visit.make` now have their base as _prototype_, |
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rather than copying properties into a fresh object. |
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Make it possible to use `visit.ancestor` with a walk state. |
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## 3.1.0 (2016-04-18) |
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### Bug fixes |
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Fix issue where the loose parser created invalid TemplateElement nodes |
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for unclosed template literals. |
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Properly tokenize the division operator directly after a function |
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expression. |
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Allow trailing comma in destructuring arrays. |
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### New features |
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The walker now allows defining handlers for `CatchClause` nodes. |
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## 3.0.4 (2016-02-25) |
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### Fixes |
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Allow update expressions as left-hand-side of the ES7 exponential |
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operator. |
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## 3.0.2 (2016-02-10) |
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### Fixes |
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Fix bug that accidentally made `undefined` a reserved word when |
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parsing ES7. |
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## 3.0.0 (2016-02-10) |
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### Breaking changes |
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The default value of the `ecmaVersion` option is now 6 (used to be 5). |
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Support for comprehension syntax (which was dropped from the draft |
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spec) has been removed. |
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### Fixes |
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`let` and `yield` are now “contextual keywords”, meaning you can |
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mostly use them as identifiers in ES5 non-strict code. |
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A parenthesized class or function expression after `export default` is |
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now parsed correctly. |
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### New features |
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When `ecmaVersion` is set to 7, Acorn will parse the exponentiation |
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operator (`**`). |
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The identifier character ranges are now based on Unicode 8.0.0. |
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Plugins can now override the `raiseRecoverable` method to override the |
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way non-critical errors are handled. |
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## 2.7.0 (2016-01-04) |
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### Fixes |
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Stop allowing rest parameters in setters. |
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Make sure the loose parser always attaches a `local` property to |
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`ImportNamespaceSpecifier` nodes. |
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Disallow `y` rexexp flag in ES5. |
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Disallow `\00` and `\000` escapes in strict mode. |
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Raise an error when an import name is a reserved word. |
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## 2.6.4 (2015-11-12) |
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### Fixes |
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Fix crash in loose parser when parsing invalid object pattern. |
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### New features |
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Support plugins in the loose parser. |
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## 2.6.2 (2015-11-10) |
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### Fixes |
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Don't crash when no options object is passed. |
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## 2.6.0 (2015-11-09) |
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### Fixes |
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Add `await` as a reserved word in module sources. |
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Disallow `yield` in a parameter default value for a generator. |
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Forbid using a comma after a rest pattern in an array destructuring. |
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### New features |
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Support parsing stdin in command-line tool. |
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## 2.5.2 (2015-10-27) |
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### Fixes |
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Fix bug where the walker walked an exported `let` statement as an |
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expression. |
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## 2.5.0 (2015-10-27) |
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### Fixes |
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Fix tokenizer support in the command-line tool. |
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In the loose parser, don't allow non-string-literals as import |
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sources. |
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Stop allowing `new.target` outside of functions. |
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Remove legacy `guard` and `guardedHandler` properties from try nodes. |
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Stop allowing multiple `__proto__` properties on an object literal in |
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strict mode. |
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Don't allow rest parameters to be non-identifier patterns. |
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Check for duplicate paramter names in arrow functions.
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