831 lines
32 KiB
Markdown
831 lines
32 KiB
Markdown
# Changelog
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> **Tags:**
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> - [New Feature]
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> - [Bug Fix]
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> - [Spec Compliancy]
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> - [Breaking Change]
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> - [Documentation]
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> - [Internal]
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> - [Polish]
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_Note: Gaps between patch versions are faulty/broken releases._
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See [CHANGELOG - 6to5](CHANGELOG-6to5.md) for the pre-4.0.0 version changelog.
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## 5.5.4
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* **Bug Fix**
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* Add back missing `shouldIgnore` check.
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* Log message on deprecated options rather than throw an error.
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* Fix name of `auxiliaryComment` option when attempting Istanbul interop in `babel/register`.
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## 5.5.3
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* **Bug Fix**
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* Fix weird state bug when traversing overa `node` `ClassProperty` instead of `path` in the `es6.classes` transformer.
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## 5.5.2
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* **Bug Fix**
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* Fix `NodePath#isPure` on `Property` nodes.
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* Use cwd instead of entry file directory when working out relative directory for `babel/register`.
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* **Internal**
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* Add scary warning for those few who choose to use the WIP experimental transformers.
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## 5.5.1
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* **Bug Fix**
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* Remove `ClassProperty` nodes always in the `Flow` transformer. This is fine now since class properties aren't supported in any engine that supports classes but the `es7.classProperties` transformer will need to be updated in the future to desugar to ES6 classes instead of relying on the `es6.classes` transformer from being ran.
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## 5.5.0
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* **Bug Fix**
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* Allow pushing declarations to `SwitchStatement`s.
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* Fix `minification.removeDebugger` to remove `DebuggerStatement`s rather than `ExpressionStatement`s with an identifier of `debugger`.
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* Check LHS in `ForInStatement` and `ForOfStatement` for constant violations.
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* Register function `id` as a reference when naming methods to avoid collisions.
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* Support key literals when checking for the existence of `displayName` property when attempting to add it for `React.createClass`.
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* Remove `ExportDefaultSpecifier` check from `t.isDefaultSpecifier`.
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* Don't consider `JSXIdentifier` HTML tag identifiers to be references.
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* **Polish**
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* Update `minification.deadCodeElimination` transformer to remove all statements after completion statements.
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* Update `minification.deadCodeElimination` transformer to not inline single used bindings that exist in different scopes.
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* When performing Istanbul interop in `babel/register`, add the auxiliary comment `"istanbul ignore text"` to get more accurate coverage.
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* Add `--nolazy` argument to `babel-node`.
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* Add support for `cluster` forking.
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* Perform scope tracking in a single pass instead of multiple.
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* Smarten up type inferrence and resolution to support the whole array of language constructs.
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* Optimise module metadata retrieval into a single pass.
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* Ignore trailing commas when inferring newlines.
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* Rename `minification.inlineExpressions` transformer to `minification.constantFolding`.
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* Check path relative to entry file when checking to see if we're inside `node_modules` when using `babel/register`.
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* Upgrade `regenerator`.
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## 5.4.7
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* **Bug Fix**
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* Don't consider `JSXAttribute` `names` to be valid `ReferencedIdentifier`s.
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## 5.4.6
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* **Bug Fix**
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* Fix `spec.functionName` transformer incorrectly attempting to rename a binding that doesn't exist as it's a global.
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* **Internal**
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* Deprecate custom module formatters.
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## 5.4.5
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* **Bug Fix**
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* Add `JSXIdentifier` as a valid `ReferencedIdentifier` visitor virtual type.
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* Ignore `CallExpression` `_prettyCall` when the `retainLines` option is enabled.
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* Inherit comments to new declaration node when exploding module declarations.
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* Fix `es6.tailCall` transformer failing on calls that exceed the max parameters of the function.
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## 5.4.4
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* **Bug Fix**
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* Fix bug where replacing variable declarations in the head of a `for` loop would turn them into `ExpressionStatement`s.
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* Fix renaming of assignment expressions that were non-identifiers ie. patterns.
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* Force space before `class` `id` to avoid breaking named classes when using `compact` mode.
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* Add assignment pattern explosion to avoid initial duplicate nodes.
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* Ignore this and arguments when performing TCO on shadowed functions.
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* **Polish**
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* Rename `sourceMapName` option to `sourceMapTarget`. Thanks [@getify](https://github.com/getify)!
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* Better detection of completion records, ignore those in `Function`s.
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* Clarified descriptions of the options that are enabled by default.
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* Resolve `\`babel-plugin-${name}\`` plugin names **before** just checking the `name`. Thanks [@jquense](https://github.com/jquense)!
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* Update AMD module formatter to add import default remapping.
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## 5.4.3
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* **Bug Fix**
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* Fix `module` being incorrectly rewritten when used as in an export declaration.
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* When performing single-reference inlining, ensure that the single reference isn't a child of the binding itself.
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* Fix a bug in `minification.deadCodeElimination` where a new binding instance was being created for local class bindings instead of just inheriting the parent one.
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* Fix bug with paren printing in `compact` and `retainLines` mode where a left paren was already printed before catching up.
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* **Internal**
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* Handle contexts for paths much better. This will ensure that the path node location info is in sync.
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## 5.4.2
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* **Polish**
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* `ignore` and `only` patterns are now **very** liberal. The pattern can now exist anywhere in the path.
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## 5.4.1
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* **Bug Fix**
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* Add missing `slash` dependency. Thanks [@browncolyn](https://github.com/browncolyn)!
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* **Polish**
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* Clean up `shouldIgnore` algorithm to work how you'd expect rather than being a hacky piece of shit. It now crawls the entire path, checking each section of it against the input ignore/only patterns. This means that the pattern `foo` will ignore the paths `foo/bar.js`, `bar/foo` etc.
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## 5.4.0
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* **New Feature**
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* Added [function bind syntax](https://github.com/zenparsing/es-function-bind) behind stage 0. Thanks [@RReverser](https://github.com/rreverser)!
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* Added `env` option. Especially handy when using the `.babelrc`.
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* **Bug Fix**
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* Fix files not properly being ignored when `babel.transform` ignores them when using `$ babel`.
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* Fix scope tracking registering loop head bindings to their `VariableDeclaration` instead of `VariableDeclarator`.
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* **Polish**
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* Normalise path separators for souce map paths when using `$ babel`.
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* Rework `PathHoister` to ignore global references and to not deopt on reassignments to referenced bindings, instead it tries to hoist to the highest scope.
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* Added missing exponential operator inlining. Thanks [@nkt](https://github.com/nkt)!
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* Optimise `regenerator` transformer. Thanks [@benjamn](https://github.com/benjamn)!
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## 5.3.3
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* **Bug Fix**
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* Fix `minification.deadCodeElimination` transformer incorrectly trying to inline import declarations.
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* Fix `minification.inlineExpression` transformer getting into an infinite loop.
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## 5.3.2
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* **Bug Fix**
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* Fix patterns not being considered when hoisting variables in the `es6.blockScoping` transformer.
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## 5.3.1
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* **Bug Fix**
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* Fix unique export specifiers not being cloned when exploding class and function exports,
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* **Polish**
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* Turn import remaps to sequence expressions to remove their context and improve performance.
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## 5.3.0
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**Speeeeeeed**
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* **Spec Compliancy**
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* Allow trailing param commas for methods when using the `es7.trailingCommas` transformer.
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* **Bug Fix**
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* Fix `es6.blockScoping` transformer not properly ignoring `break` in `SwitchCase`.
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* Fix lookahead context saving to avoid weird tokenizer state.
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* Explode duplicate identifiers in export/import specifiers and property shorthand to create unique objects.
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* Skip loose mode for class methods when they have decorators.
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* When removing nodes, share their comments with their siblings.
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* Properly hoist temp param declarations when doing TCO.
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* **Internal**
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* Add `--harmony_generators` flag to `$ babel-node`.
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* Internal AST traversals have been minimised **drastically**. Transformers have been grouped together which means entire tree traversals are much fewer. Visiting nodes is now also skipped if the traversal context can detect that the handler is a noop. This sames precious cycles as it avoids constructing traversal paths and creating a new traversal context. See issues [#1472](https://github.com/babel/babel/issues/1472) and [#1486](https://github.com/babel/babel/issues/1486) for related discussion.
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* **Polish**
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* Move many `utility` transformers to `minification`.
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## 5.2.17
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* **Bug Fix**
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* Fix auxiliary comments not properly being attached to function declaration helpers.
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* Add `Super` node type to `ast-types` patch.
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* Ignore parameter bindings when attempting to inline them in the `minification.deadCodeElimination` transformer.
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* Correct `extensions` arguments when using the Babel CLI.
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## 5.2.16
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* **Bug Fix**
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* Fix plugins being disabled when using the whitelist.
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* Fix correct function scope being passed to `nameMethod.property` when inferring the function name for class methods.
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* Fix incorrect extensions reference causing weird issues when using the Babel CLI.
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* Fix destructuring param reference replacements not inheriting from their original param.
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* **Spec Compliancy**
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* Fix order that method decorators are ran in.
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## 5.2.15
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* **Bug Fix**
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* Fix initializer descriptor add attempt if it doesn't exist.
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## 5.2.14
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* **Bug Fix**
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* Fix bug with initializer decorators where the descriptors weren't being defined if there was no `initializer` property.
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* **Internal**
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* Expose `retainLines` option to CLI.
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* Fix `retainLines` option not being taken into consideration when doing multiple variable declaration declarators generation.
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* Expose minified and unminified copies of dist scripts.
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## 5.2.13
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* **Bug Fix**
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* Fix `ExportDeclaration`s being incorrectly removed when using the `utility.deadCodeElimination` transformer.
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* Fix position of `utility` transformers.
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* **New Feature**
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* Add built-in `esquery` support.
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* **Internal**
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* Consolidate notion of "virtual types".
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## 5.2.12
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* **Polish**
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* Make UID generation based on module declarations **much** nicer.
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* **Internal**
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* Remove internal check for traversal path replacement of self. This is a pattern that **could** come up in the wild and it could lead to pretty nasty code and may lead to internal regressions as the test coverage isn't 100% :( Instead, just put it in the fast path.
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## 5.2.11
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* **Internal**
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* Rename `getModuleName` option to `getModuleId`, doh.
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## 5.2.10
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* **Bug Fix**
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* Fix numerous issues in `replaceWithSourceString`. Thanks [@pangratz](https://github.com/pangratz)!
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* **New Feature**
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* Add `getModuleName` option. Thanks [@jayphelps](https://github.com/jayphelps)!
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## 5.2.9
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* **Bug Fix**
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* Fix `_blockHoist` transformer incorrectly sorting nodes on shitty environments that aren't spec compliant in their key order.
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* Fix broken `parse` API method reference to an undeclared import.
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## 5.2.7
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* **Bug Fix**
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* Move `utility.deadCodeElimination` transformer up to avoid race conditions.
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* Fix shorthand property scope binding renaming.
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* **Polish**
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* Turn helper variable declarations into function declarations if possible.
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* **Internal**
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* Removed native inheritance support from classes.
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* Added `replaceWithSourceString` path API.
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* Split up `es3.propertyLiterals` and `es3.memberExpressionLiterals` transformers to `minfication.propertyLiterals` and `es3.memberExpressionLiterals`.
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## 5.2.6
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* **Internal**
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* Fix transformer aliases being accidently set as deprecated ones.
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* Expose `Pipeline` as `TransformerPipeline` instead.
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## 5.2.5
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* **Bug Fix**
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* Fix `parse` API not adding all the correct pipeline transformers.
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## 5.2.4
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* **Bug Fix**
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* Fix race condition with the Node API being loaded awkwardly and not being able to initialise itself when used in the browser.
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* **Internal**
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* Expose `transform.pipeline`.
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## 5.2.3
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* **Bug Fix**
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* Fix plugin containers being called with an undefined import. Thanks [@timbur](https://github.com/timbur)!
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* Allow Flow object separators to be commas. Thanks [@monsanto](https://github.com/monsanto)!
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* Add missing `Statement` and `Declaration` node aliases to flow types.
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## 5.2.2
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* **Internal**
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* Allow `util.arrayify` to take arbitrary types and coerce it into an array.
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## 5.2.1
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* **Bug Fix**
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* Fix regression in `node/register` that caused `node_modules` to not be ignored.
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## 5.2.0
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* **Bug Fix**
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* Fix plugin strings splitting arbitrarily on `:` which caused full paths on Windows to fail as they include `:` after the drive letter.
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* Call class property `initializer`s with their target instead of their descriptor.
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* Fix `ignore` and `only` not properly working on Windows path separators. Thanks [@stagas](https://github.com/stagas)!
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* Fix `resolveRc` running on files twice causing issues. Thanks [@lukescott](https://github.com/lukescott)!
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* Fix shorthand properties not correctly being target for `isReferenced` checks. Thanks [@monsanto](https://github.com/monsanto)!
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* **Polish**
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* Allow passing an array of globs to `babel/register` `only` and `ignore` options. Thanks [@Mark-Simulacrum](https://github.com/Mark-Simulacrum)!
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* When inferring function names that collide with upper bindings, instead of doing the wrapper, instead rename them.
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* Consider constant-like variable declaration functions to always refer to themselves so TOC can be performed.
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* Process globs manually when using `$ babel` as some shells such as Windows don't explode them. Thanks [@jden](https://github.com/jden)!
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* Add alternative way to execute plugins via a closure that's called with the current Babel instance.
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* **Internal**
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* Remove multiple internal transformers in favor of directly doing things when we need to. Previously, declarations such as `_ref` that we needed to create in specific scopes were done at the very end via the `_declarations` transformer. Now, they're done and added to the scope **right** when they're needed. This gets rid of the crappy `_declarations` property on scope nodes and fixes the crappy regenerator bug where it was creating a new `BlockStatement` so the declarations were being lost.
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* Rework transformer traversal optimisation. Turns out that calling a `check` function for **every single node** in the AST is ridiculously expensive. 300,000 nodes timesed by ~30 transformers meant that it took tens of seconds to perform while it's quicker to just do the unnecessary traversal. Seems obvious in hindsight.
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* **New Feature**
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* Add `jscript` transformer that turns named function expressions into function declarations to get around [JScript's horribly broken function expression semantics](https://kangax.github.io/nfe/#jscript-bugs). Thanks [@kondi](https://github.com/kondi)!
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* Add `@@hasInstance` support to objects when using the `es6.spec.symbols` transformer.
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* Add `retainLines` option that retains the line (but not the columns!) of the input code.
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## 5.1.13
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* **Polish**
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* Remove symbol check from `defineProperty` helper.
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## 5.1.12
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* **Bug Fix**
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* Fix `resolveModuleSource` not being ran on `ExportAllDeclaration`s.
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* Fix `.babelrc` being resolved multiple times when using the require hook.
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* Fix parse error on spread properties in assignment position.
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* Fix `externalHelpers` option being incorrectly listed as type `string`.
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* **Internal**
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* Upgrade `core-js` to `0.9.0`.
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* **Spec Compliancy**
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* Fix object decorators not using the `initializer` pattern.
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* Remove property initializer descriptor reflection.
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## 5.1.11
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* **Bug Fix**
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* Memoise and bind member expression decorators.
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* Move JSX children cleaning to opening element visitor. Fixes elements not being cleaned in certain scenarios.
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* Consider `SwitchStatement`s to be `Scopable`.
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* Fix `bluebirdCoroutines` calling `interopRequireWildcard` before it's defined.
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* Add space to `do...while` code generation.
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* Validate `super` use before `this` on `super` exit rather than entrance.
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* **Polish**
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* Add Babel name to logger.
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## 5.1.10
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* **Bug Fix**
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* Remove `makePredicate` from acorn in favor of an `indexOf`.
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* Remove statements to expression explosion when inserting a block statement.
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* **Internal**
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* Remove runtime compatibility check.
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## 5.1.9
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* **Bug Fix**
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* Fix class property initializers with `undefined` values not being correctly writable.
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* Fix self inferring generators incorrectly causing a stack error.
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* Fix default export specifiers not triggering AMD `module` argument inclusion.
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* Fix assignments not having their module references properly remapped.
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* **Internal**
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* Upgrade to latest `acorn`.
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* **Polish**
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* Make invalid LHS pattern error messages nicer.
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## 5.1.8
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* **Bug Fix**
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* Only make parenthesized object pattern LHS illegal.
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## 5.1.7
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* **Internal**
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* Add `parse` node API.
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## 5.1.6
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* **Bug Fix**
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* Fix `runtime` built-in catchall not properly checking for local variables.
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## 5.1.5
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* **Internal**
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* Bump `core-js` version.
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## 5.1.4
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* **Polish**
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* Add missing `Reflect` methods to runtime transformer.
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## 5.1.3
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* **Internal**
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* Switch entirely to vanilla regenerator.
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* Clean up and make the parsing of decorators stateless.
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* **Bug Fix**
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* Don't do TCO on generators and async functions.
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* Add missing `core-js` runtime definitions.
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## 5.1.2
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* **Bug Fix**
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* Add `getIterator` and `isIterable` to `babel-runtime` build script.
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## 5.1.1
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* **Bug Fix**
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* Add missing runtime symbol definitions.
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## 5.1.0
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* **Bug Fix**
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* Fix super reference when using decorators.
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* Don't do array unpack optimisation when member expressions are present.
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* Add missing descriptors for undecorated class properties.
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* Don't consider `arguments` and `eval` valid function names when doing function name inferrence.
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* Fix scope tracking of constants in loop heads.
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* Parse `AwaitExpression` as a unary instead of an assignment.
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* Fix regex evaluation when attempting static evaluation.
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* Don't emit tokens when doing a lookahead.
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* Add missing `test` declaration to `utility.deadCodeElimination` transformer.
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* **Internal**
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* Upgrade `regenerator` to the latest and use my branch with the hope of eventually switching to vanilla regenerator.
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* Add support for the replacement of for loop `init`s with statements.
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* Upgrade dependencies.
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* **Polish**
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* When adding the scope IIFE when using default parameters, don't shadow the function expression, just `apply` `this` and `arguments` if necessary.
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* Use path basename as non-default import fallback.
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* **New Feature**
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* Add [trailing function comma proposal](https://github.com/jeffmo/es-trailing-function-commas). Thanks [@AluisioASG](https://github.com/AluisioASG)!
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* Add support for object literal decorators.
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* Make core-js modular when using the `runtime` transformer.
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## 5.0.12
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* **Bug Fix**
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* Fix incorrect remapping of module references inside of a function id redirection container.
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## 5.0.11
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* **Bug Fix**
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* Fix new `for...of` loops not properly inheriting their original loop.
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* **Internal**
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* Disable scope instance cache.
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* **Polish**
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* Allow comments in `.babelrc` JSON.
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## 5.0.9
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* **Polish**
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* Use `moduleId` for UMD global name if available.
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* **Bug Fix**
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* Fix UMD global `module` variable shadowing the `amd`/`common` `module` variable.
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* Fix Flow param type annotation regression.
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* Fix function name collision `toString` wrapper. Thanks [@alawatthe](https://github.com/alawatthe)!
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## 5.0.8
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|
|
* **Bug Fix**
|
|
* Fix falsy static class properties not being writable.
|
|
* Fix block scoping collisions not properly detecting modules and function clashes.
|
|
* Skip `this` before `super` for derived constructors on functions.
|
|
|
|
## 5.0.7
|
|
|
|
* **New Feature**
|
|
* Add `--ignore` and `--only` support to the CLI.
|
|
* **Bug Fix**
|
|
* Remove `HOMEPATH` environment variable from home resolution in `babel/register` cache.
|
|
* **Internal**
|
|
* Disable WIP path resolution introducing infinite recursion in some code examples.
|
|
* **Polish**
|
|
* Add live binding to CommonJS default imports.
|
|
|
|
## 5.0.6
|
|
|
|
* **Bug Fix**
|
|
* Fix mangling of import references that collide with properties on `Object.prototype`.
|
|
* Fix duplicate declarations incorrectly being reported for `var`.
|
|
|
|
## 5.0.5
|
|
|
|
* **Internal**
|
|
* Upgrade `core-js`.
|
|
* **Bug Fix**
|
|
* Fix arrays not being supported in `util.list`.
|
|
|
|
## 5.0.4
|
|
|
|
* **Polish**
|
|
* Check for top level `breakConfig` in `resolveRc`.
|
|
|
|
## 5.0.3
|
|
|
|
* **Bug Fix**
|
|
* Make relative location absolute before calling `resolveRc`.
|
|
* **Internal**
|
|
* Switch to global UID registry.
|
|
* Add `breakConfig` option to prevent Babel from erroring when hitting that option.
|
|
|
|
## 5.0.1
|
|
|
|
* **Bug Fix**
|
|
* Fix duplicate declaration regression.
|
|
* Fix not being able to call non-writable methods.
|
|
|
|
## 5.0.0
|
|
|
|
* **New Feature**
|
|
* Decorators based on [@wycat's](https://github.com/wycats) [stage 1 proposal](https://github.com/wycats/javascript-decorators).
|
|
* Class property initializers based on [@jeffmo's](https://github.com/jeffmo) [stage 0 proposal](https://gist.github.com/jeffmo/054df782c05639da2adb).
|
|
* Export extensions based on [@leebyron's](https://github.com/leebyron) [stage 1 proposal](https://github.com/leebyron/ecmascript-more-export-from).
|
|
* UMD module formatter now supports globals.
|
|
* Add `es3.runtime`, `optimisation.react.inlineElements` and `optimisation.react.constantElements` transformers.
|
|
* Add stage option that replaces the experimental one.
|
|
* Allow ES7 transformer to be enabled via `optional` instead of only via `stage`.
|
|
* Infer string quotes to use in the code generator.
|
|
* Consider `export { foo as default };` to be the same as `export default foo;`.
|
|
* Add `nonStandard` option that can be set to `false` to remove parser support for JSX and Flow.
|
|
* Add `jsxPragma` option.
|
|
* Automatically generate CLI options based on internal API options.
|
|
* Add support for `.babelrc` on absolute paths.
|
|
* Plugin API!
|
|
* **Internal**
|
|
* Export `options` in browser API.
|
|
* Rewritten parser.
|
|
* Don't block hoist when runtime transformer is enabled in system module formatter.
|
|
* Rewritten the internal traversal and node replacement API to use "paths" that abstracts out node relationships.
|
|
* **Polish**
|
|
* JSX output is now more inline with the official JSX transformer.
|
|
* Hoist block scoping IIFE - this improves memory usage and performance.
|
|
* Better IIFE detection - references are now checked to see if they're referencing the binding we're searching for.
|
|
* Check for import reassignments in constants transformer.
|
|
* Make method definitions with expression bodies illegal.
|
|
* Save register cache on tick instead of `SIGINT`.
|
|
* Enable strict mode on babel-node eval flag.
|
|
* **Bug Fixes**
|
|
* Add support for live bindings. This change also increases the reliablity of export specifier renaming.
|
|
* Add support for super update and non equals assignment expressions.
|
|
* Rename shadow constructor binding in classes.
|
|
* Seed next iteration bindings with previous fresh bindings when reassinging loop block scoped variables.
|
|
* Fix new expression spread referencing the wrong constructor.
|
|
* Call `resolveModuleSource` on dynamic imports.
|
|
* Added `param` to list of duplicate declaration kinds.
|
|
* **Breaking Changes**
|
|
* The Babel playground has been removed.
|
|
* ES7 Abstract References have been removed.
|
|
* Experimental option has been removed in favor of a stage option.
|
|
* Rename `returnUsedHelpers` to `metadataUsedHelpers`.
|
|
|
|
## 4.7.16
|
|
|
|
* **Bug Fix**
|
|
* Fix constructor spreading of typed arrays.
|
|
* Fix break/continue/return aliasing of non-loops in block scoping transformer.
|
|
|
|
## 4.7.15
|
|
|
|
* **Bug Fix**
|
|
* Fix constructor spreading of collections.
|
|
|
|
## 4.7.14
|
|
|
|
* **Bug Fix**
|
|
* Fix constructor spreading of `Promise`.
|
|
* **Internal**
|
|
* Deprecate remaining playground transformers and abstract references.
|
|
|
|
## 4.7.13
|
|
|
|
* **Bug Fix**
|
|
* Handle comments on use strict directives.
|
|
* Fix assignment patterns with a left side pattern.
|
|
* **Polish**
|
|
* Special case `this` when doing expression memoisation.
|
|
|
|
## 4.7.12
|
|
|
|
* **Bug Fix**
|
|
* Deprecate `playground.methodBinding`.
|
|
|
|
## 4.7.11
|
|
|
|
* **Bug Fix**
|
|
* Fix unicode regexes stripping their unicode flag before being passed on two `regexpu`.
|
|
|
|
## 4.7.10
|
|
|
|
* **Internal**
|
|
* Deprecate `playground.methodBinding` and `playground.objectGetterMemoization`.
|
|
* **Bug Fix**
|
|
* Fix `inputSourceMap` option. Thanks [@Rich-Harris](https://github.com/Rich-Harris)!
|
|
|
|
## 4.7.9
|
|
|
|
* **Polish**
|
|
* Allow `inputSourceMap` to be set to `false` to skip the source map inference.
|
|
* Infer computed literal property names.
|
|
* **Bug Fix**
|
|
* Fix nested labeled for-ofs.
|
|
* Fix block scoping `break` colliding with the parent switch case.
|
|
* **Internal**
|
|
* Upgrade `acorn-babel`.
|
|
|
|
## 4.7.8
|
|
|
|
* **Bug Fix**
|
|
* Fix computed classes not properly setting symbols.
|
|
|
|
## 4.7.7
|
|
|
|
* **Bug Fix**
|
|
* Fix `types` API exposure.
|
|
|
|
## 4.7.6
|
|
|
|
* **Bug Fix**
|
|
* Fix non-Identifier/Literal computed class methods.
|
|
* **Polish**
|
|
* Add a fallback if `stack` on an error is unconfigurable.
|
|
* Hoist `esModule` module declarations to the top of the file to handle circular dependencies better.
|
|
|
|
## 4.7.5
|
|
|
|
* **Bug Fix**
|
|
* Don't remap` break`s to call the iterator return.
|
|
* **Polish**
|
|
* Use a different helper for computed classes for much nicer output. Also fixes a bug in symbols being non-enumerable so they wouldn't be set on the class.
|
|
|
|
## 4.7.4
|
|
|
|
* **Bug Fix**
|
|
* Rewrite named function expressions in optional async function transformers.
|
|
* Hoist directives.
|
|
* Remove `Number` from the list of valid `runtime` constructors.
|
|
* **Internal**
|
|
* `spec.typeofSymbol` transformer has been renamed to `es6.symbols`.
|
|
|
|
## 4.7.2
|
|
|
|
* **New Feature**
|
|
* `"both"` option for `sourceMap`.
|
|
* Add output types to external helpers. Thanks [@neVERberleRfellerER](https://github.com/neVERberleRfellerER)!
|
|
* **Bug Fix**
|
|
* Fix node duplication sometimes resulting in a recursion error.
|
|
* Ignore `break`s within cases inside `for...of`.
|
|
* **Polish**
|
|
* Split up variable declarations and export declarations to allow easier transformation.
|
|
|
|
## 4.7.0
|
|
|
|
* **Bug Fix**
|
|
* Add `alternate` to list of `STATEMENT_OR_BLOCK` keys.
|
|
* Add support for module specifiers to `t.isReferenced`.
|
|
* **New Feature**
|
|
* Add `inputSourceMap` option.
|
|
* **Polish**
|
|
* Throw an error on different `babel` and `babel-runtime` versions.
|
|
* Replicate module environment for `babel-node` eval.
|
|
* Clean up classes output.
|
|
* **Spec Compliancy**
|
|
* Make it illegal to use a rest parameter on a setter.
|
|
|
|
## 4.6.6
|
|
|
|
* **Bug Fix**
|
|
* Fix incorrect method call in `utility.deadCodeElimination` transformer.
|
|
* Fix `es6.blockScopingTDZ` transformer duplicating binding nodes.
|
|
|
|
## 4.6.5
|
|
|
|
* **Internal**
|
|
* `useStrict` transformer has been renamed to `strict`.
|
|
|
|
## 4.6.4
|
|
|
|
* **Bug Fix**
|
|
* Fix `ForOfStatement` not proplery inheriting labels.
|
|
* When in closure mode in block scoping transformer, properly check for variable shadowing.
|
|
* **New Feature**
|
|
* New `utility.inlineEnvironmentVariables` and `utility.inlineExpression` transformers.
|
|
|
|
## 4.6.3
|
|
|
|
* **Bug Fix**
|
|
* Fix `arguments` being incorrectly aliased in arrow function rest parameter optimisation.
|
|
* Make deoptimisation trigger safer.
|
|
* **New Feature**
|
|
* Flow types are now retained when blacklisting the `flow` transformer.
|
|
|
|
## 4.6.1
|
|
|
|
* **Bug Fix**
|
|
* Fix generators in template directory being transformed.
|
|
* Fix exposure of `util` for plugins.
|
|
|
|
## 4.6.0
|
|
|
|
* **New Feature**
|
|
* Desugar sticky regexes to a new constructor expression so it can be handled by a polyfill.
|
|
* **Spec Compliancy**
|
|
* `for...of` now outputs in a lengthy `try...catch` this is to ensure spec compliancy in regards to iterator returns and abrupt completions. See [google/traceur-compiler#1773](https://github.com/google/traceur-compiler/issues/1773) and [babel/babel/#838](https://github.com/babel/babel/issues/838) for more information.
|
|
* **Polish**
|
|
* Rest parameters that are only refered to via number properties on member expressions are desugared into a direct `arguments` reference. Thanks [@neVERberleRfellerER](https://github.com/neVERberleRfellerER)!
|
|
* `$ babel` no longer exits on syntax errors.
|
|
* **Internal**
|
|
* Upgrade `browserify`.
|
|
* Upgrade `source-map`.
|
|
* Publicly expose more internals.
|
|
|
|
## 4.5.5
|
|
|
|
* **Polish**
|
|
* Delete old extensions when overriding them in `babel/register`.
|
|
|
|
## 4.5.3
|
|
|
|
* **Bug Fix**
|
|
* Fix whitelisting logic for helper build script.
|
|
|
|
## 4.5.2
|
|
|
|
* **New Feature**
|
|
* `returnUsedHelpers` option and add whitelist to `buildHelpers`.
|
|
* **Bug Fix**
|
|
* Fix function arity on self referencing inferred named functions.
|
|
* **Internal**
|
|
* Bump `acorn-babel`.
|
|
* Start converting source to ES6...
|
|
|
|
## 4.5.1
|
|
|
|
**Babel now compiles itself!**
|
|
|
|
|
|
|
|
## 4.5.0
|
|
|
|
* **New Feature**
|
|
* Add `.babelrc` support.
|
|
* **Bug Fix**
|
|
* Move use strict directives to the module formatter bodies.
|
|
* **Internal**
|
|
* Make default `bin/babel` behaviour to ignore non-compilable files and add a `--copy-files` flag to revert to the old behaviour.
|
|
|
|
## 4.4.6
|
|
|
|
* **Bug Fix**
|
|
* Fix extending a class expression with no methods/only constructor. Thanks [@neVERberleRfellerER](https://github.com/neVERberleRfellerER)!
|
|
* Allow `MemberExpression` as a valid `left` of `ForOfStatement`.
|
|
* **Polish**
|
|
* Throw an error when people try and transpile code with the `@jsx React.DOM` pragma as it conflicts with the custom jsx constructo method detection.
|
|
* Crawl all comments for `@jsx` pragma.
|
|
* **Internal**
|
|
* Upgrade `chalk`.
|
|
* Upgrade `core-js`.
|
|
|
|
## 4.4.5
|
|
|
|
* **Internal**
|
|
* Remove function self reference optimisation.
|
|
|
|
## 4.4.4
|
|
|
|
* **Bug Fix**
|
|
* Handle inferred function ids to be reassigned and deopt to a slower but working equivalent.
|
|
* Don't unpack array patterns that have more elements than their right hand array expression.
|
|
* **Polish**
|
|
* Improve syntax highlighting in the code frame. Thanks [@lydell](https://github.com/lydell)!
|
|
* **Internal**
|
|
* Upgrade `acorn-babel`.
|
|
|
|
## 4.4.3
|
|
|
|
* **Bug Fix**
|
|
* Fix `for...of` iterator break returns being duplicated.
|
|
* Only call `return` on the iterator if it exists.
|
|
* **Internal**
|
|
* Rename `selfContained` transformer to `runtime`.
|
|
|
|
## 4.4.2
|
|
|
|
* **New Feature**
|
|
* Add `moduleId` option for specifying a custom module id.
|
|
|
|
## 4.4.0
|
|
|
|
* **New Feature**
|
|
* `/*** @jsx NAMESPACE **/` comments are now honored by the `react` transformer.
|
|
* `getModuleName` option.
|
|
* Infer function expression names. Thanks [@RReverser](https://github.com/RReverser)!
|
|
* **Bug Fix**
|
|
* Add proper control flow for tail recursion optimisation.
|
|
* **Internal**
|
|
* Remove useless `format` options and move the `format.compact` option to `format`.
|
|
* **Polish**
|
|
* Newline handling of the code generator has been heavily improved.
|
|
* Code generator now deopts whitespace if the input size is >100KB.
|
|
|
|
## 4.3.0
|
|
|
|
* **Breaking Change**
|
|
* Remove `commonStandard` module formatter and make it the default behaviour of all the strict module formatters.
|
|
|
|
## 4.2.1
|
|
|
|
* **Polish**
|
|
* Add auxiliary comment to let scoping closure flow control.
|
|
|
|
## 4.2.0
|
|
|
|
* **Polish**
|
|
* Use an assignment instead of a define for `__esModule` in loose mode.
|
|
* **Internal**
|
|
* Add error for `eval();` usage and enable strict mode for parsing.
|
|
|
|
## 4.1.0
|
|
|
|
* **New Feature**
|
|
* Add `BABEL_CACHE_PATH` and `BABEL_DISABLE_CACHE` environment variables.
|
|
* **Internal**
|
|
* Replace many internal util functions with modules. Thanks [@sindresorhus](https://github.com/sindresorhus)!
|
|
|
|
## 4.0.2
|
|
|
|
* **Bug Fix**
|
|
* Fix generators not properly propagating their internal declarations.
|
|
* **Polish**
|
|
* Update setter param length error message.
|
|
* Use ranges on dependencies.
|
|
|
|
## 4.0.0
|
|
|
|
* 6to5 is now known as Babel.
|
|
* Global helpers/runtime has now been given the more descriptive name of "external helpers".
|