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oxc/crates/oxc_minifier
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oxc-bot bd48dfbf8b
release(crates): v0.29.0 (#5763) 
## [0.29.0] - 2024-09-13

- 71116a1 index: [**BREAKING**] Remove ability to index `IndexVec` with
`usize` (#5733) (overlookmotel)

- c3dd2a0 ast: [**BREAKING**] Revert: reduce byte size of
`TaggedTemplateExpression::quasi` by `Boxing` it (#5679) (#5715)
(overlookmotel)

### Features

- 953fe17 ast: Provide `NONE` type for AST builder calls (#5737)
(overlookmotel)
- a362f51 index: Add `IndexVec::shrink_to` (#5713) (overlookmotel)
- e968e9f minifier: Constant fold nullish coalescing operator (#5761)
(Boshen)
- 6bc13f6 minifier: Add `MinimizeConditions` pass (#5747) (Boshen)
- 805fbac oxc_cfg: Better control flow graph dot dot repr (#5731)
(IWANABETHATGUY)
- f3baa49 semantic: Add `SemanticBuilder::with_stats` (#5757)
(overlookmotel)
- 7fa0cb3 semantic: Expose `Stats` (#5755) (overlookmotel)

### Bug Fixes

- 8ff013a minifier: Handle dce CallExpression::callee (#5752) (Boshen)
- 608b7d3 napi/transformer: Refresh plugin doesn't work even after
passing the refresh option (#5702) (Dunqing)
- 042afa9 syntax: Correctly check for valid `RedeclarationId`s (#5759)
(overlookmotel)
- 77d9170 transformer/react: IsStaticChildren should be false when there
is only one child (#5745) (Dunqing)

### Performance

- 333e2e0 index: Remove `Idx` bounds-checks from `first` + `last`
methods (#5726) (overlookmotel)
- d18c896 rust: Use `cow_utils` instead (#5664) (dalaoshu)

### Refactor

- 2890c98 minifier: Add tests for `remove_syntax` (#5749) (Boshen)
- 9a9d8f6 minifier: Replace `self.ast` with `ctx.ast` (#5748) (Boshen)
- 746f7b3 minifier: Align code with closure compiler (#5717) (Boshen)
- 21e2df5 minifier: Replace `VisitMut` with `Traverse` for inject and
define plugins (#5705) (Boshen)
- 4bdc202 rust: Remove some #[allow(unused)] (#5716) (Boshen)
- a35fb14 semantic: `Stats::assert_accurate` take `self` (#5758)
(overlookmotel)
- 4b896f1 semantic: Make `Stats` `Copy` (#5756) (overlookmotel)
- b4b460f semantic: `Stats` store counts as `u32` (#5754)
(overlookmotel)
- 667170c semantic: Rename `Counts` to `Stats` (#5753) (overlookmotel)
- cc0408b semantic: S/AstNodeId/NodeId (#5740) (Boshen)
- 7dfcdfc semantic: Remove `more-asserts` dependency (#5739)
(overlookmotel)
- 6436524 semantic: Fix dead code warning in release mode (#5728)
(overlookmotel)
- e02621d semantic: Re-order use statements (#5712) (overlookmotel)
- ac6203c semantic: Move `Counts` code into counter module (#5710)
(overlookmotel)
- 339fcfc semantic: Rename `Counts` in transform checker (#5709)
(overlookmotel)
- d8ec781 semantic: Remove `record_ast_node` call for `Program` (#5701)
(overlookmotel)

### Styling

- 1857ff0 semantic: Rename vars for node IDs (#5699) (overlookmotel)

Co-authored-by: Boshen <1430279+Boshen@users.noreply.github.com>
2024-09-13 21:43:23 +08:00
..
examples refactor(oxc,mangler): oxc crate add mangler; mangler use options API 2024-08-20 22:58:59 +08:00
src feat(minifier): constant fold nullish coalescing operator (#5761) 2024-09-13 13:25:58 +00:00
tests feat(minifier): constant fold nullish coalescing operator (#5761) 2024-09-13 13:25:58 +00:00
Cargo.toml release(crates): v0.29.0 (#5763) 2024-09-13 21:43:23 +08:00
CHANGELOG.md release(crates): v0.29.0 (#5763) 2024-09-13 21:43:23 +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