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oxc-bot e02bac357a
Release crates v0.23.0 (#4595) 
## [0.23.0] - 2024-08-01

- 27fd062 sourcemap: [**BREAKING**] Avoid passing `Result`s (#4541)
(overlookmotel)

### Features

- a558492 codegen: Implement `BinaryExpressionVisitor` (#4548) (Boshen)
- 7446e98 codegen: Align more esbuild implementations (#4510) (Boshen)
- 35654e6 codegen: Align operator precedence with esbuild (#4509)
(Boshen)
- b952942 linter: Add eslint/no-unused-vars (⭐ attempt 3.2) (#4445)
(DonIsaac)
- 85e8418 linter: Add react/jsx-curly-brace-presence (#3949) (Don Isaac)
- cf1854b semantic: Remove `ReferenceFlags::Value` from non-type-only
exports that referenced type binding (#4511) (Dunqing)

### Bug Fixes

- b58ed80 codegen: Enable more test cases (#4585) (Boshen)
- 6a94e3f codegen: Fixes for esbuild test cases (#4503) (Boshen)
- d5c4b19 parser: Fix enum member parsing (#4543) (DonIsaac)

### Performance

- 4c6d19d allocator: Use capacity hint (#4584) (Luca Bruno)
- 7585e16 linter: Remove allocations for string comparisons (#4570)
(DonIsaac)
- 55a8763 parser: Faster decoding unicode escapes in identifiers (#4579)
(overlookmotel)
- ae1d38f parser: Fast path for ASCII when checking char after numeric
literal (#4577) (overlookmotel)
- 56ae615 parser: Make not at EOF the hot path in `Source` methods
(#4576) (overlookmotel)
- 25679e6 parser: Optimize `Lexer::hex_digit` (#4572) (overlookmotel)
- bb33bcc parser: Speed up lexing non-decimal numbers (#4571)
(overlookmotel)
- ab8509e parser: Use `-` not `saturating_sub` (#4561) (overlookmotel)
- c9c38a1 parser: Support peeking over bytes (#4304) (lucab)
- 0870ee1 parser: Get and check lookahead token (#4534) (lucab)
- d00014e sourcemap: Elide bounds checks in VLQ encoding (#4583)
(overlookmotel)
- 1fd9dd0 sourcemap: Use simd to escape JSON string (#4487)
(Brooooooklyn)

### Documentation

- 0914e47 ast: Add doc comments to literal nodes (#4551) (DonIsaac)
- c6a11be ast: Auto-generate doc comments for AstBuilder methods (#4471)
(DonIsaac)

### Refactor

- e68ed62 parser: Convert lexer byte handler for `|` to a single match
(#4575) (overlookmotel)
- bba824b parser: Convert `Lexer::read_minus` to a single match (#4574)
(overlookmotel)
- ef5418a parser: Convert `Lexer::read_left_angle` to a single match
(#4573) (overlookmotel)
- 9e5be78 parser: Add `Lexer::consume_2_chars` (#4569) (overlookmotel)
- 649913e parser: Extract `u8` not `&u8` when iterating over bytes
(#4568) (overlookmotel)
- 59f00c0 parser: Rename function (#4566) (overlookmotel)
- 8e3e910 parser: Rename vars (#4565) (overlookmotel)
- 0c0601f parser: Rename function (#4564) (overlookmotel)
- 0acc4a7 parser: Fetch 2 bytes in `?` byte handler (#4563)
(overlookmotel)
- 565eccf parser: Shorten lexer code (#4562) (overlookmotel)
- 148bdb5 parser: Adjust function inlining (#4530) (overlookmotel)
- 16c7b98 semantic: Move CatchClause scope binding logic to
visit_block_statement (#4505) (Dunqing)
- d6974d4 semantic: `AstNodeParentIter` fetch nodes lazily (#4533)
(overlookmotel)
- d914b14 semantic: Reusing the same reference (#4529) (Dunqing)
- 7b5e1f5 semantic: Use `is_empty()` instead of `len() == 0` (#4532)
(overlookmotel)
- 9db4259 semantic: Inline trivial methods (#4531) (overlookmotel)
- 7c42ffc sourcemap: Align Base64 chars lookup table to cache line
(#4535) (overlookmotel)
- 96602bf transformer/typescript: Determine whether to remove
`ExportSpeicifer` by `ReferenceFlags` (#4513) (Dunqing)
- e6a8af6 traverse: Speed up tests (#4538) (overlookmotel)

Co-authored-by: Boshen <1430279+Boshen@users.noreply.github.com>
2024-08-01 16:55:41 +08:00
..
examples chore: move mangler example to minifier (#4343) 2024-07-18 06:27:16 +00:00
src feat(minifier): compress typeof foo == "undefined" into typeof foo > "u" (#4412) 2024-07-22 12:44:33 +00:00
tests feat(codegen): implement BinaryExpressionVisitor (#4548) 2024-07-31 12:44:19 +00:00
Cargo.toml Release crates v0.23.0 (#4595) 2024-08-01 16:55:41 +08:00
CHANGELOG.md Release crates v0.23.0 (#4595) 2024-08-01 16:55:41 +08:00
README.md

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