160 lines
3.4 KiB
Markdown
160 lines
3.4 KiB
Markdown
## 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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