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oxc-bot a727ee8aca
release(oxc): crates v0.28.0 (#5696) 
## [0.28.0] - 2024-09-11

- afc4548 ast: [**BREAKING**] Educe byte size of
`TaggedTemplateExpression::quasi` by `Boxing` it (#5679) (Boshen)

- 7415e85 ast: [**BREAKING**] Reduce byte size of
`TSImportType::attributes` by `Box`ing it (#5678) (Boshen)

- ee4fb42 ast: [**BREAKING**] Reduce size of `WithClause` by `Box`ing it
(#5677) (Boshen)

- 1fa3e56 semantic: [**BREAKING**] Rename `SymbolTable::iter` to
`symbol_ids` (#5621) (overlookmotel)

- 96a1552 semantic: [**BREAKING**] Remove `SymbolTable::iter_rev`
(#5620) (overlookmotel)

- 4a8aec1 span: [**BREAKING**] Change `SourceType::js` to
`SourceType::cjs` and `SourceType::mjs` (#5606) (Boshen)

- 603817b oxc: [**BREAKING**] Add `SourceType::Unambiguous`; parse `.js`
as unambiguous (#5557) (Boshen)

- b060525 semantic: [**BREAKING**] Remove `source_type` argument from
`SemanticBuilder::new` (#5553) (Boshen)

### Features

- 2da5ad1 ast: Add `JSXElementName::get_identifier` method (#5556)
(overlookmotel)
- 2016bae coverage: Add regular expression idempotency test (#5676)
(Boshen)
- 68c3cf5 minifier: Fold `void 1` -> `void 0` (#5670) (Boshen)
- c6bbf94 minifier: Constant fold unary expression (#5669) (Boshen)
- 86256ea minifier: Constant fold `typeof` (#5666) (Boshen)
- e698418 napi/transform: Align output `SourceMap` with Rollup's
`ExistingRawSourceMap` (#5657) (Boshen)
- aba9194 napi/transform: Export react refresh options (#5533)
(underfin)
- 642295c semantic: Add `SymbolTable::delete_resolved_reference` method
(#5558) (overlookmotel)
- b3cbd56 span: `format_compact_str!` macro (#5610) (overlookmotel)
- 95a6d99 transformer: Enable the react refresh plugin in enable_all
(#5630) (Dunqing)
- 7b543df transformer/react: Handle `refresh_sig` and `refresh_reg`
options correctly (#5638) (Dunqing)
- 17226dd traverse: Add methods for deleting references (#5559)
(overlookmotel)

### Bug Fixes

- d62defb codegen: Do not print trailing commas for `ArrayExpression`
(#5551) (Boshen)
- 1bc08e2 coverage: Parse babel unambiguously (#5579) (Boshen)
- 28b934c coverage: Apply `always_strict` to test262 and typescript per
the specifcation (#5555) (Boshen)
- b9bf544 isolated-declarations: False positive for setter method in
`interface` (#5681) (Dunqing)
- 6e8409a isolated-declarations: Bindings referenced in
`TSModuleDeclaration` are removed incorrectly (#5680) (Dunqing)
- b8f8dd6 minifier/replace_global_defines: Do not replace shadowed
identifiers (#5691) (Boshen)
- 304ce25 regular_expression: Keep LegacyOctalEscape raw digits for
`to_string` (#5692) (leaysgur)
- 0511d55 regular_expression: Report more MayContainStrings error in
(nested)class (#5661) (leaysgur)
- 41582ea regular_expression: Improve RegExp `to_string()` results
(#5635) (leaysgur)
- 28aad28 regular_expression: Handle `-` in `/[\-]/u` as escaped
character (#5631) (leaysgur)
- f9e3a41 semantic: Bind `SymbolId` to function name in `if (foo)
function id() {}` (#5673) (Boshen)
- f49e6eb span: Treat `.js` as `module` file (reverts the previous
breaking change) (#5612) (Boshen)
- 919d17f transform_conformance: Only print semantic mismatch errors
when output is correct (#5589) (Boshen)
- 505d064 transformer: JSX transform delete references for
`JSXClosingElement`s (#5560) (overlookmotel)
- 9b7ecc7 transformer: RegExp transform only set span on final
expression (#5508) (overlookmotel)
- d1ece19 transformer: RegExp transform handle `Term::Quantifier`
(#5501) (overlookmotel)
- a1afd48 transformer/react: Incorrect scope_id for var hoisted in fast
refresh plugin (#5695) (Dunqing)
- f2f5e5a transformer/react: Missing scope_id for function in fast
refresh plugin (#5693) (Dunqing)
- a891c31 transformer/react: Refresh plugin has incorrect reference
flags (#5656) (Dunqing)
- 3e8b96f transformer/react: The refresh plugin cannot handle member
expressions with React hooks (#5655) (Dunqing)
- 0739b5f transformer/react: Don't transform declaration of function
overloads (#5642) (Dunqing)
- 3bf6aaf transformer/react: Support `emit_full_signatures` option in
refresh plugin (#5629) (Dunqing)
- 36d864a transformer/react: Don't transform if the variable does not
have a value reference (#5528) (Dunqing)

### Performance

- e8013d2 traverse: Faster string operations generating UIDs (#5626)
(overlookmotel)
- 4996874 traverse: `generate_uid` cache available binding names (#5611)
(overlookmotel)

### Documentation

- fefbbc1 sourcemap: Add trailing newline to README (#5539)
(overlookmotel)
- 9282647 transformer: Comment on RegExp transform for potential
improvement (#5514) (overlookmotel)
- 1c051ae traverse: Correct code comment 2 (#5607) (overlookmotel)
- 2e24a15 traverse: Correct code comment (#5604) (overlookmotel)

### Refactor

- 14ee086 ast: Inline `AstKind::as_*` methods (#5547) (overlookmotel)
- 2de6ea0 index, traverse: Remove unnecessary type annotations (#5650)
(overlookmotel)
- 0ac420d linter: Use meaningful names for diagnostic parameters (#5564)
(Don Isaac)
- 2da42ef regular_expression: Improve AST docs with refactoring
may_contain_strings (#5665) (leaysgur)
- dec1395 regular_expression: Align diagnostics (#5543) (leaysgur)
- 731ffaa semantic: Compare nodes by pointer equality (#5686)
(overlookmotel)
- 067f9b5 semantic: Introduce `IsGlobalReference` trait (#5672) (Boshen)
- d22a9b7 semantic: `SymbolTable::is_empty` use `is_empty` (#5622)
(overlookmotel)
- 3d190a5 span: Move `CompactStr` into separate file (#5609)
(overlookmotel)
- 5532628 span: Put types and impl in the same mod file (Boshen)
- ce71982 transformer: Shorten code in JSX transform (#5554)
(overlookmotel)
- 758a10c transformer: RegExp transform reuse var (#5527)
(overlookmotel)
- fad0a05 transformer: RegExp transform unbox early (#5504)
(overlookmotel)
- 19cdcc5 traverse: Revert changes to `walk.rs` (#5652) (overlookmotel)-
26d9235 Enable clippy::ref_as_ptr (#5577) (夕舞八弦)

### Styling

- e52d006 traverse: Fix formatting of traverse codegen (#5651)
(overlookmotel)
- 97e99bd traverse: Remove excess line break (#5603) (overlookmotel)-
694f032 Add trailing line breaks to `package.json` files (#5542)
(overlookmotel)

### Testing

- 2e367c9 traverse: Enable tests for `oxc_traverse` crate (#5625)
(overlookmotel)- dc92489 Add trailing line breaks to conformance
fixtures (#5541) (overlookmotel)

---------

Co-authored-by: Boshen <1430279+Boshen@users.noreply.github.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
2024-09-11 17:57:55 +08:00
..
examples refactor(oxc,mangler): oxc crate add mangler; mangler use options API 2024-08-20 22:58:59 +08:00
src fix(minifier/replace_global_defines): do not replace shadowed identifiers (#5691) 2024-09-11 07:17:17 +00:00
tests fix(minifier/replace_global_defines): do not replace shadowed identifiers (#5691) 2024-09-11 07:17:17 +00:00
Cargo.toml release(oxc): crates v0.28.0 (#5696) 2024-09-11 17:57:55 +08:00
CHANGELOG.md release(oxc): crates v0.28.0 (#5696) 2024-09-11 17:57:55 +08:00
README.md chore: rename oxc_printer to oxc_formatter (#336) 2023-05-07 17:47:13 +08:00

README.md

Minifier

A JavaScript minifier has three components:

  1. printer
  2. mangler
  3. compressor

Mangler

The mangler implementation is part of the SymbolTable residing in oxc_semantic. It is responsible for shortening variables. Its algorithm should be gzip friendly.

The printer is also responsible for printing out the shortened variable names.

Compressor

The compressor is responsible for rewriting statements and expressions for minimal text output. Terser is a good place to start for learning the fundamentals.

Terser Tests

The fixtures are copied from https://github.com/terser/terser/tree/master/test/compress