release(crates): v0.47.0

[oxc-bot]

[0.47.0] - 2025-01-18

• fae4cd2 allocator: [BREAKING] Remove Vec::into_string (refactor(allocator)!: remove Vec::into_string #8571) (overlookmotel)

• 95bc0d7 allocator: [BREAKING] Allocator do not deref to bumpalo::Bump (refactor(allocator)!: Allocator do not deref to bumpalo::Bump #8569) (overlookmotel)

• 19d3677 ast: [BREAKING] Always return Array<ImportDeclarationSpecifier> for ImportDeclaration.specifiers (fix(ast)!: always return Array<ImportDeclarationSpecifier> for ImportDeclaration.specifiers #8560) (sapphi-red)

• 4ce6329 semantic: [BREAKING] Ensure program outlives semantic (fix(semantic)!: ensure program outlives semantic #8455) (Valentinas Janeiko)

• 7066d1c ast, span, syntax, regular_expression: [BREAKING] Remove ContentHash (feat(ast, span, syntax, regular_expression)!: remove ContentHash #8512) (overlookmotel)

Features

• bf4e5e1 allocator: Add HashMap (feat(allocator): add HashMap #8553) (overlookmotel)
• a6d71f8 ast: Add AstKind::ty method (feat(ast): add AstKind::ty method #8521) (overlookmotel)
• 4d4e805 minifier: Collapse if stmt with empty consequent (feat(minifier): collapse if stmt with empty consequent #8577) (camc314)
• 991a22f minifier: Fold Array::concat into literal (feat(minifier): fold Array::concat into literal #8442) (sapphi-red)
• 3dc2d8b minifier: Fold string concat chaining (feat(minifier): fold string concat chaining #8441) (sapphi-red)
• a4ae450 minifier: Fold array concat chaining (feat(minifier): fold array concat chaining #8440) (sapphi-red)
• 7cc81ef minifier: Fold invalid typeof comparisons (feat(minifier): fold invalid typeof comparisons #8550) (camc314)
• 927f43f minifier: Improve .charCodeAt(arg) when arg is valid (feat(minifier): improve .charCodeAt(arg) when arg is valid #8534) (Boshen)
• 06f14d5 minifier: Remove empty class static block class Foo { static {} } (feat(minifier): remove empty class static block class Foo { static {} } #8525) (Boshen)
• 1860411 minifier: Remove last redundant return statement (feat(minifier): remove last redundant return statement #8523) (Boshen)
• c479a58 napi/parser: Expose dynamic import expressions (feat(napi/parser): expose dynamic import expressions #8540) (Boshen)
• 2f0314e npm/oxc-minify: Npm package and publish script (feat(npm/oxc-minify): npm package and publish script #8579) (Boshen)
• f413bb5 transformer/optional-chaining: Change parent scope for expression when it wrapped with an arrow function (feat(transformer/optional-chaining): change parent scope for expression when it wrapped with an arrow function #8511) (Dunqing)

Bug Fixes

• e87c001 allocator: Statically prevent memory leaks in allocator (fix(allocator): statically prevent memory leaks in allocator #8570) (overlookmotel)
• 855c839 codegen: Shorthand assignment target identifier consider mangled names (fix(codegen): shorthand assignment target identifier consider mangled names #8536) (Boshen)
• 65c596d minifer: Keep idents if not in scope when minimizing array exprs (fix(minifer): keep idents if not in scope when minimizing array exprs #8551) (camc314)
• f57aac2 minifier: Incorrect folding of expr in bool ctx (fix(minifier): incorrect folding of expr in bool ctx #8542) (camc314)
• 946ad76 minifier: (-Infinity).toString() -> '-Infinity' (fix(minifier): (-Infinity).toString() -> '-Infinity' #8535) (Boshen)
• b1d0186 minifier: Do not fold !!void b (fix(minifier): do not fold !!void b #8533) (Boshen)
• 53adde5 minifier: x['-2147483648'] -> x[-2147483648] (fix(minifier): x['-2147483648'] -> x[-2147483648] #8528) (Boshen)
• 405b73d minifier: Do not change delete undefined to delete void 0 (fix(minifier): do not change delete undefined to delete void 0 #8527) (Boshen)
• 92e44cb minifier: Do not remove undefined in var x = undefined (fix(minifier): do not remove undefined in var x = undefined #8526) (Boshen)
• 209e313 minifier: class C { ['-1']() {} } cannot be minifized (fix(minifier): class C { ['-1']() {} } cannot be minifized #8516) (Boshen)
• 6585463 minifier: Always keep the last value of sequence expression (fix(minifier): always keep the last value of sequence expression #8490) (Boshen)
• b552f5c transformer: wrap_in_arrow_function_iife take span of input Expression (fix(transformer): wrap_in_arrow_function_iife take span of input Expression #8547) (overlookmotel)
• 9963533 transformer/arrow-functions: Visit arguments to super() call (fix(transformer/arrow-functions): visit arguments to super() call #8494) (overlookmotel)
• 06ccb51 transformer/async-to-generator: Move parameters to the inner generator function when they could throw errors (fix(transformer/async-to-generator): move parameters to the inner generator function when they could throw errors #8500) (Dunqing)
• 356f0c1 transformer/class-properties: Handle nested super() calls (fix(transformer/class-properties): handle nested super() calls #8506) (overlookmotel)
• a048337 transformer/class-static-blocks: Static block converted to IIFE use span of original block (fix(transformer/class-static-blocks): static block converted to IIFE use span of original block #8549) (overlookmotel)

Performance

• 76ea52b allocator: Inline Box methods (perf(allocator): inline Box methods #8572) (overlookmotel)
• 93df57f allocator: #[inline(always)] methods of Vec which just delegate to allocator_api2 (perf(allocator): #[inline(always)] methods of Vec which just delegate to allocator_api2 #8567) (overlookmotel)
• 5a28d68 allocator: #[inline(always)] methods of HashMap which just delegate to hashbrown (perf(allocator): #[inline(always)] methods of HashMap which just delegate to hashbrown #8565) (overlookmotel)
• d17021c mangler: Optimize base54 function (perf(mangler): optimize base54 function #8557) (overlookmotel)
• 6b52d7a mangler: Use a single allocation space for temporary vecs (perf(mangler): use a single allocation space for temporary vecs #8495) (Boshen)
• 30a869e semantic: Use oxc_allocator::HashMap in ScopeTree (perf(semantic): use oxc_allocator::HashMap in ScopeTree #8554) (overlookmotel)
• 63eb298 span: Compare Spans as single u64s (perf(span): compare Spans as single u64s #8300) (overlookmotel)
• a43560c span: Hash Span as a single u64 (perf(span): hash Span as a single u64 #8299) (overlookmotel)
• 3fff7d2 span: Align Span same as usize (perf(span): align Span same as usize #8298) (overlookmotel)
• 53ef263 transformer/arrow-functions: Bail out of visiting early when inserting _this = this after super() (perf(transformer/arrow-functions): bail out of visiting early when inserting _this = this after super() #8482) (overlookmotel)

Documentation

• fa1a6d5 allocator: Update docs for Vec (docs(allocator): update docs for Vec #8555) (overlookmotel)

Refactor

• ac05134 allocator: String type (refactor(allocator): String type #8568) (overlookmotel)
• 68fab81 allocator: Rename inner Vec type (refactor(allocator): rename inner Vec type #8566) (overlookmotel)
• fcbca32 ast: Rename #[estree(with)] to #[estree(via)] (refactor(ast): rename #[estree(with)] to #[estree(via)] #8564) (overlookmotel)
• 007e8c0 ast, regular_expression: Shorten ContentEq implementations (refactor(ast, regular_expression): shorten ContentEq implementations #8519) (overlookmotel)
• b4c87e2 linter: Move DiagnosticsReporters to oxlint (refactor(linter): move DiagnosticsReporters to oxlint #8454) (Alexander S.)
• 8f57929 minifier: Merge try_compress_type_of_equal_string into try_minimize_binary (refactor(minifier): merge try_compress_type_of_equal_string into try_minimize_binary #8561) (sapphi-red)
• 2857ae1 parser: Refactor visitor in regexp example (refactor(parser): refactor visitor in regexp example #8524) (overlookmotel)
• b5ed58e span: All methods take owned Span (refactor(span): all methods take owned Span #8297) (overlookmotel)
• 712633f transformer: wrap_statements_in_arrow_function_iife utility function (refactor(transformer): wrap_statements_in_arrow_function_iife utility function #8548) (overlookmotel)
• 5206c6a transformer: Rename wrap_in_arrow_function_iife (refactor(transformer): rename wrap_in_arrow_function_iife #8546) (overlookmotel)
• 61077ca transformer: wrap_arrow_function_iife receive an owned Expression (refactor(transformer): wrap_arrow_function_iife receive an owned Expression #8545) (overlookmotel)
• 6820d24 transformer: Move wrap_arrow_function_iife to root utils module (refactor(transformer): move wrap_arrow_function_iife to root utils module #8529) (Dunqing)
• 52bd0b1 transformer: Move common utils functions to the root module (refactor(transformer): move common utils functions to the root module #8513) (Dunqing)
• c30654a transformer/arrow-function: Wrapping arrow function iife by using wrap_arrow_function_iife (refactor(transformer/arrow-function): wrapping arrow function iife by using wrap_arrow_function_iife #8530) (Dunqing)
• 2bc5175 transformer/arrow-functions: Rename method (refactor(transformer/arrow-functions): rename method #8481) (overlookmotel)
• 72f425f transformer/class-properties: Fix lint warning in release mode (refactor(transformer/class-properties): fix lint warning in release mode #8539) (overlookmotel)
• 7e61b23 transformer/typescript: Shorten code (refactor(transformer/typescript): shorten code #8504) (overlookmotel)
• 04bc259 traverse: Remove unnecessary #[allow] (refactor(traverse): remove unnecessary #[allow] #8518) (overlookmotel)
• a368726 traverse: Harden soundness of Traverse and document safety invariants better (refactor(traverse): harden soundness of Traverse and document safety invariants better #8507) (overlookmotel)

Testing

• e0f5d6c minifier: Update esbuild test (Boshen)
• 629c417 minifier: Port esbuild minification tests (test(minifier): port esbuild minification tests #8497) (Boshen)

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[github-actions]

Monitor Oxc

suite	result
Isolated Declarations	✅
(codegen)	✅
(compressor)	❌
(dce)	❌
(transformer)	❌
(mangler)	✅
(whitespace)	✅

[codspeed-hq]

CodSpeed Performance Report

Merging #8580 will not alter performance

_{Comparing release/crates-1737181364 (4894acd) with main (fcbca32)}

Summary

✅ 32 untouched benchmarks