release(crates): v0.40.0

[oxc-bot]

[0.40.0] - 2024-12-10

• 5d6fa25 traverse: [BREAKING] Remove TraverseCtx::is_static (refactor(traverse)!: remove TraverseCtx::is_static #7760) (overlookmotel)

• 5913200 transformer/class-properties: [BREAKING] Rename ClassPropertiesOptions::loose (refactor(transformer/class-properties)!: rename ClassPropertiesOptions::loose #7716) (overlookmotel)

• 72eab6c parser: [BREAKING] Stage 3 import source and import defer (feat(parser)!: stage 3 import source and import defer #7706) (Boshen)

• ebc80f6 ast: [BREAKING] Change 'raw' from &str to Option (refactor(ast)!: change 'raw' from &str to Option<Atom> #7547) (Song Gao)

Features

• 7dcf6b4 ast, transformer: Add AstBuilder::use_strict_directive method (feat(ast, transformer): add AstBuilder::use_strict_directive method #7770) (overlookmotel)
• d0b78f7 codegen: Minify whitespace for some expressions (feat(codegen): minify whitespace for some expressions #7671) (Boshen)
• c523ccb codegen: Better whitespace minification for import / export statements (feat(codegen): better whitespace minification for import / export statements #7650) (Boshen)
• cf2ee06 data_structures: Add rope (feat(data_structures): add rope #7764) (Boshen)
• bd9d38a linter: Implement eslint:yoda (feat(linter): Implement eslint:yoda #7559) (tbashiyy)
• 9157a0e napi/parser: Add getUtf16ByteOffset API; update README (feat(napi/parser): add getUtf16ByteOffset API; update README #7772) (Boshen)
• 00fea92 napi/parser: Expose span positions of import.meta (feat(napi/parser): expose span positions of import.meta #7677) (Boshen)
• 2803aec napi/transform: Return helpers information (feat(napi/transform): return helpers information #7737) (Boshen)
• 85eec3c napi/transform,napi/parser: Return structured error object (feat(napi/transform,napi/parser): return structured error object #7724) (Boshen)
• c98457d napi/transformer: Add runtime helper mode (feat(napi/transformer): add runtime helper mode #7727) (Boshen)
• 78dff7d semantic: Add SymbolTable::symbol_is_mutated method (feat(semantic): add SymbolTable::symbol_is_mutated method #7755) (overlookmotel)
• b8dc333 syntax: Add ExportEntry::is_type (feat(syntax): add ExportEntry::is_type #7676) (Boshen)
• 2e69720 transformer/class-properties: Support private_fields_as_properties assumption (feat(transformer/class-properties): support private_fields_as_properties assumption #7717) (overlookmotel)
• 86d4c90 transformer/class-properties: Support for transforming AssignmentTarget (feat(transformer/class-properties): support for transforming AssignmentTarget #7697) (Dunqing)
• c793d71 transformer/class-properties: Transform ChainExpression (feat(transformer/class-properties): transform ChainExpression #7575) (Dunqing)
• e010b6a transformer/logical-assignment-operators: No temp vars for literals (feat(transformer/logical-assignment-operators): no temp vars for literals #7759) (overlookmotel)
• 8705a29 transformer/var-declaration: Add a series of create_var* methods (feat(transformer/var-declaration): add a series of create_var* methods #7665) (Dunqing)
• e8518e9 transformer/var-declarations: Add insert_var_with_init method (feat(transformer/var-declarations): add insert_var_with_init method #7667) (Dunqing)
• ff73c7f traverse: Add TraverseCtx::generate_uid_in_current_hoist_scope_based_on_node (feat(traverse): add TraverseCtx::generate_uid_in_current_hoist_scope_based_on_node #7642) (Dunqing)

Bug Fixes

• a222f2b codegen: Print delete 2e308 as delete (0, Infinity) (fix(codegen): print delete 2e308 as delete (0, Infinity) #7761) (Boshen)
• b701232 codegen: Print quote correctly for directive (fix(codegen): print quote correctly for directive #7735) (Boshen)
• 8c3a954 codegen: Missing parens for in in for in loop init (fix(codegen): missing parens for in in for in loop init #7705) (Dunqing)
• 4afbe55 codegen: Missing parens for in in for loop init when it includes two binary expression (fix(codegen): missing parens for in in for loop init when it includes two binary expression #7703) (Dunqing)
• 2179b93 estree: Make type of BigIntLiteral::raw prop in ESTree AST optional (fix(estree): make type of BigIntLiteral::raw prop in ESTree AST optional #7663) (overlookmotel)
• cbba26c estree: raw: null in ESTree AST for generated NullLiterals (fix(estree): raw: null in ESTree AST for generated NullLiterals #7662) (overlookmotel)
• 1d59fc8 estree: raw: null in ESTree AST for generated BooleanLiterals (fix(estree): raw: null in ESTree AST for generated BooleanLiterals #7661) (overlookmotel)
• f7d41dd oxc_transform: Overlap replacement (fix(oxc_transform): overlap replacement #7621) (IWANABETHATGUY)
• 245d7d9 oxc_transformer: Alias es2015 to es6 (fix(oxc_transformer): alias es2015 to es6 #7673) (Kevin Deng 三咲智子)
• 8c0b0ee parser: Better diagnostic for invalid for await syntax (fix(parser): better diagnostic for invalid for await syntax #7649) (Boshen)
• f42dbdf transformer/class-properties: Output is not the same with Babel when PrivateFieldExpression is optional (fix(transformer/class-properties): output is not the same with Babel when PrivateFieldExpression is optional #7762) (Dunqing)
• f52b1db transformer/class-properties: Output is not the same with Babel when callee has optional (fix(transformer/class-properties): output is not the same with Babel when callee has optional #7748) (Dunqing)
• 97e4185 transformer/class-properties: Fix SymbolFlags for _super function (fix(transformer/class-properties): fix SymbolFlags for _super function #7709) (overlookmotel)
• de5b0b6 transformer/class-properties: Make _super function outside class strict mode (fix(transformer/class-properties): make _super function outside class strict mode #7708) (overlookmotel)
• 72b5d58 transformer/class-properties: Create temp var for this in computed key (fix(transformer/class-properties): create temp var for this in computed key #7686) (overlookmotel)
• ad76d1d transformer/class-properties: Transform delete chain expression in static prop initializers (fix(transformer/class-properties): transform delete chain expression in static prop initializers #7656) (overlookmotel)
• e48769a transformer/logic-assignment-operator: Always create IdentifierReferences with ReferenceId (fix(transformer/logic-assignment-operator): always create IdentifierReferences with ReferenceId #7745) (overlookmotel)

Performance

• d503a84 parser: Reorder parse_statement match conditions (perf(parser): reorder parse_statement match conditions #7645) (Boshen)
• e923e4e parser: Inline all token kind checks (perf(parser): inline all token kind checks #7644) (Boshen)
• 6c82589 transformer/class-properties: Replace recursion with loop (perf(transformer/class-properties): replace recursion with loop #7652) (overlookmotel)
• 463fc5f transformer/logic-assignment-operator: Inline enter_expression visitor (perf(transformer/logic-assignment-operator): inline enter_expression visitor #7744) (overlookmotel)

Documentation

• 5806942 transformer/class-properties: Correct doc comment (docs(transformer/class-properties): correct doc comment #7741) (overlookmotel)
• 583b36b transformer/class-properties: Remove oudated todo (docs(transformer/class-properties): remove oudated todo #7669) (Dunqing)

Refactor

• 98afe65 ast: AstBuilder extra methods use SPAN (refactor(ast): AstBuilder extra methods use SPAN #7769) (overlookmotel)
• 8993e89 ast: Shorten code (refactor(ast): shorten code #7659) (overlookmotel)
• 746c8aa ast: Rename vars (refactor(ast): rename vars #7658) (overlookmotel)
• 3c1b2bf isolated_declarations: Use NONE in AST builder calls (refactor(isolated_declarations): use NONE in AST builder calls #7752) (overlookmotel)
• c6a19aa linter: Remove unused serde features (refactor(linter): remove unused serde features #7738) (Boshen)
• 36d1493 parser: Use ModuleRecord::has_module_syntax for setting sourceType (refactor(parser): use ModuleRecord::has_module_syntax for setting sourceType #7646) (Boshen)
• 9c2a1b6 transformer: duplicate_expression do not produce temp var for super (refactor(transformer): duplicate_expression do not produce temp var for super #7757) (overlookmotel)
• a750ebc transformer: duplicate_expression take mutated_symbol_needs_temp_var param (refactor(transformer): duplicate_expression take mutated_symbol_needs_temp_var param #7756) (overlookmotel)
• b500f55 transformer: Introduce TransformCtx::duplicate_expression (refactor(transformer): introduce TransformCtx::duplicate_expression #7754) (overlookmotel)
• 75ba4a9 transformer: Use NONE in AST builder calls (refactor(transformer): use NONE in AST builder calls #7751) (overlookmotel)
• 1925ddc transformer: Rename VarDeclarationsStore methods (refactor(transformer): rename VarDeclarationsStore methods #7682) (overlookmotel)
• 0ca10e2 transformer: Use ctx.var_declarations.create_var* methods (refactor(transformer): use ctx.var_declarations.create_var* methods #7666) (Dunqing)
• 016ae92 transformer/class-properties: Rename file (refactor(transformer/class-properties): rename file #7767) (overlookmotel)
• 9cacf64 transformer/class-properties: Transform the remaining PrivateFieldExpression in ChainExpression first (refactor(transformer/class-properties): transform the remaining PrivateFieldExpression in ChainExpression first #7763) (Dunqing)
• 7e0f7eb transformer/class-properties: Prefer contains to intersects for bitflags (refactor(transformer/class-properties): prefer contains to intersects for bitflags #7747) (overlookmotel)
• 7344d21 transformer/class-properties: TODO comments for future optimizations (refactor(transformer/class-properties): TODO comments for future optimizations #7711) (overlookmotel)
• dd55b84 transformer/class-properties: Shorten output when _super function (refactor(transformer/class-properties): shorten output when _super function #7710) (overlookmotel)
• ac910ee transformer/class-properties: Move code out of transform_assignment_target (refactor(transformer/class-properties): move code out of transform_assignment_target #7701) (overlookmotel)
• e67e981 transformer/class-properties: Shorten code (refactor(transformer/class-properties): shorten code #7700) (overlookmotel)
• ab3e1c3 transformer/class-properties: Add TODO comments (refactor(transformer/class-properties): add TODO comments #7702) (overlookmotel)
• 28ce187 transformer/class-properties: duplicate_object_twice method (refactor(transformer/class-properties): duplicate_object_twice method #7685) (overlookmotel)
• 8883968 transformer/class-properties: Use duplicate_object in transform_expression_to_wrap_nullish_check (refactor(transformer/class-properties): use duplicate_object in transform_expression_to_wrap_nullish_check #7664) (Dunqing)
• 44fe854 transformer/class-properties: Move logic for handling delete of chain expression into transform_unary_expression (refactor(transformer/class-properties): move logic for handling delete of chain expression into transform_unary_expression #7655) (overlookmotel)
• 3d593ec var-declarations: Remove unnecessary init parameter from insert_var (refactor(var-declarations): remove unnecessary init parameter from insert_var #7668) (Dunqing)

Styling

• 0c9cc48 ast: Import Atom (style(ast): import Atom #7657) (overlookmotel)
• e97a954 data_structures: Line breaks (style(data_structures): line breaks #7766) (overlookmotel)
• e5145b0 transformer/class-properties: Reformat doc comments (style(transformer/class-properties): reformat doc comments #7653) (overlookmotel)

Testing

• c254a5b napi/transform: Use the expect API instead of assert (test(napi/transform): use the expect API instead of assert #7739) (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 #7775 will not alter performance

_{Comparing release/crates-1733841854 (fba868c) with main (39b9c5d)}

Summary

✅ 29 untouched benchmarks