v1.11.1

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v1.13.3

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Bug Fixes

• (es/minifier) Check exported when optimize last expr (#​10939) (f6f15f3)

• (es/minifier) Disallow types (#​10945) (63172ef)

• (es/minifier) Don't optimize Number properties when Number is shadowed (#​10947) (40a1e2e)

• (es/minifier) Fix cycle detection (#​10950) (212d8bc)

• (es/parser) Correctly handle EOF position (#​10934) (dd70fbd)

Performance

• (es/minifier) Remove visitor of CharFreqAnalyzer (#​10928) (65534ff)

• (es/minifier) Remove pre-compress pass (#​10932) (c7f0e4d)

• (es/minifier) Use bitflag for var kind (#​10940) (4317988)

• (es/minifier) Remove needless clone (#​10949) (b5e5e8c)

• (es/parser) Reduce comparison (#​10933) (e44fbd4)

• (es/parser) Reduce comparison (#​10941) (a262eeb)

v1.13.2

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Bug Fixes

• (es/minifier) Remove the last break in the second switch (#​10923) (3ed4a12)

• (es/parser) Reject malformed phase import statements (#​10912) (5fde348)

• (swc_core) Add default-features = false to drop stacker (#​10916) (38b45b7)

Features

• (es/compiler) Improve structure (#​10903) (0cc6743)

• (es/compiler) Merge private_in_object and static_blocks (#​10909) (c1405da)

• (es/compiler) Merge logical assignments (#​10914) (ccbfcd1)

• (es/compiler) Merge export_namespace_from (#​10917) (ba6cc71)

• (es/renamer) Add renamer_keep_contexts (#​10907) (1b15171)

Miscellaneous Tasks

• (claude) Use Opus and allow assigning to the claude-bot (3275b9c)

Performance

• (es/lexer) Remove option for handler (#​10881) (1ad8506)

• (es/lexer) Reduce memory move (#​10906) (145fba4)

• (es/lexer) Reduce context query (#​10910) (443aa1c)

• (es/lexer) Reduce query and comparison (#​10919) (400c996)

• (es/minifier) Make get_type for === lazy (#​10920) (4eab8e8)

• (es/minifier) Reduce get_type calls (#​10922) (9d55e88)

• (es/parser) Reduce check during parsing binding (#​10905) (92ca5ec)

• (es/parser) Reduce comparison (#​10911) (e00c178)

Refactor

• (es/compat) Initialize compiler API (#​10902) (d6566ee)

• (es/lexer) EOF Token (#​10880) (54c866a)

• (es/parser) Reduce input_mut() calls (#​10899) (1816368)

• (es/parser) Remove unnecessary PResult (#​10900) (27e548d)

• (es/preset-env) Apply swc_ecma_compiler in preset env (#​10921) (6f5b72a)

Testing

• (es/minifier) Update #​10918 test case (#​10924) (57fb106)

v1.13.1

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Bug Fixes

• (es/compat) Properly handle rest assignment in for-in/of RHS (#​10883) (5d11851)

• (es/decorators) Handle empty class members (#​10892) (fe44972)

• (es/minifier) Hoist props when only props are used (#​10891) (452fc98)

• (es/minifier) Recursively check stmt for variable when inlining function (#​10896) (e37a93d)

• (es/minifier) Termination check when stmts containing switch (#​10898) (4429b20)

• (es/parser) Fix parsing of JSX identifiers (#​10894) (0047c39)

• (ts/fast-strip) Strip private method overloads (#​10886) (cdb6e87)

Testing

• (es/minify) Verify fixed issue (#​10888) (86c1dca)

v1.13.0

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Bug Fixes

• (es/lexer) Disallow legacy octal literals as BigInt (#​10867) (430fbf4)

• (es/minifier) Restrict IIFE inlining in class contexts (#​10879) (a01b54a)

• (es/parser) Mark static as reserved in strict mode (#​10861) (5bdddd7)

Features

• (es/minifier) Drop unused rest paramters (#​10857) (5305486)

• (es/minifier) Enhance IIFE invoker for arrow functions (#​10860) (2b1ce3d)

• (plugin/runner) Use wasmer-wasix sys-minimal feature to reduce binary size (#​10638) (b5f704a)

Performance

• (es/lexer) Reduce comparison while reading numbers (#​10864) (c6ba5c2)

• (es/lexer) Remove unnecessary check when reading keywords (#​10866) (4aefe0e)

• (es/parser) Reduce comparisons (#​10862) (3bd9aad)

• (es/parser) Remove useless alloc (#​10865) (3ebf088)

• (es/parser) Reduce token query (#​10869) (d93ef64)

• (es/parser) Remove duplicate check (#​10872) (fe76460)

• (es/parser) Remove duplicate check (#​10874) (064123b)

• (swc_error_reporters) Avoid creating miette handler when no diagnostics (#​10852) (93b318f)

Refactor

• (es/lexer) Avoid passing convert (#​10868) (77393f8)

• (es/minifier) Cleanup (#​10882) (2595cb1)

• (es/parser) Remove duplicate check for reservedness (#​10850) (4897bfd)

• (es/parser) Remove span swap operation in parser (#​10854) (32f4bb8)

v1.12.14

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Bug Fixes

• (es/minifier) Don't inline arrow when it contain this (#​10825) (8b43bb3)

• (es/parser) Make export in NS to not affect file type (#​10799) (ae22033)

• (es/parser) Correctly check ambient context (#​10802) (f97ea03)

Features

• (es/parser) Enable support for dynamic import with defer phase (#​10845) (097d29d)

• (plugin) Remove bytecheck to make Wasm plugins backward compatible (#​10842) (30ad808)

Miscellaneous Tasks

• (bindings) Fix dependency issues (7c57fbb)

• (deps) Update class-validator to avoid comments (#​10819) (bacfa4b)

• (ide) Enable --workspace for rust-analyzer check (#​10809) (92647ff)

Performance

• (es/minifier) Use u8 for remaining_depth (#​10833) (ed6956a)

• (hstr) Inline one more byte (#​10817) (3886c97)

• (hstr) Remove static tag (#​10832) (66ae1e8)

Refactor

• (es/helpers) Make inline helpers optional at compile time (#​10808) (53f3881)

• (es/lexer) Don't store buffer in lexer (#​10830) (cac40f1)

• (es/lints) Remove warnings without features (#​10794) (41d507f)

• (es/parser) Reduce token query (#​10834) (5cd5185)

• (es/parser) Reduce call to parse_decorators (#​10846) (356d3a0)

• (es/parser) Remove duplicate check (#​10847) (2b04efd)

• (es/preset-env) Use strpool,phf for corejs2 data (#​10803) (1652fd8)

• (es/react) Remove redundant replace calls (#​10795) (a670b37)

• (es/react) Remove count_children (#​10818) (2116ab2)

• (hstr) Cleanup duplicate header (#​10812) (630dde9)

• (hstr) Make the deallocation of Atoms explicit (#​10813) (406433d)

• (hstr) Remove is_global (#​10820) (afda0f9)

Testing

• (es/plugin) Test memory layout of archived types (#​10841) (502e991)

v1.12.11

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Bug Fixes

• (ci) Fix CI (#​10790) (b3f9760)

• (es) Use default-features = false for swc crate usages (#​10776) (50b2eac)

• (es) Make swc_typescript optional (#​10792) (c32569d)

• (preset-env) Fix default value for caniuse (#​10754) (aa4cd5b)

• (preset-env) Revert default value (#​10778) (7af5824)

Features

• (es/minifeir) Inline lazily initialized literals (#​10752) (fd5d2e2)

• (es/minifier) Evaluate Number.XXX constants (#​10756) (c47dab5)

• (es/minifier) Implement partial evaluation of array join (#​10758) (bdf3a98)

• (swc_core) Expose swc_ecma_parser/unstable (#​10744) (db0679e)

Miscellaneous Tasks

• (common) Remove clone() in proc macro (#​10762) (12e3180)

• (deps) Update browserslist-rs to 0.19 (#​10750) (f8bf21c)

• (deps) Remove unused deps with cargo-shear (#​10765) (f4e4974)

• (es/module) Drop node feature of swc_ecma_loader (#​10761) (44471b5)

• (plugin/runner) Remove unused feature and dependency (#​10764) (a7d8a0a)

Performance

• (es/lexer) Use bitflags for Syntax (#​10676) (bf8c722)

• (es/lexer) Do not scan number if there's no underscore (#​10788) (f5d92ee)

• (es/lints) Make rules not parallel (#​10772) (4e6001c)

• (es/lints) Merge critical rules (#​10773) (816e75a)

• (es/parser) Reduce the number of context set ops (#​10742) (08b4e8b)

• (es/parser) Reduce value set operations for context (#​10751) (4976b12)

• (es/parser) Reduce query ops of current token (#​10766) (4304f91)

• (es/parser) Remove useless call in parse_ident (#​10770) (4ca12c9)

• (es/renamer) Reduce time complexity in case of conflict (#​10749) (0279914)

• (hstr) Do not compare string during creating atoms (#​10791) (43a4f11)

• Replace rayon with par-iter (#​10774) (a6e6ebe)

Refactor

• (es) Make swc_ecma_lint optional for swc crate (#​10767) (f80415b)

• (es/lexer) Use const fn in SyntaxFlags (#​10737) (b9eb23a)

• (es/parser) Cleanup parse_setter_param (#​10745) (70734f4)

• (es/parser) Cleanup typed-arena (#​10769) (ce5138d)

• (es/parser) Cleanup for ctx (#​10777) (d60a611)

• (es/parser) Delete with_ctx (#​10779) (ce057c5)

• (es/parser) Cleanup (#​10781) (176ce36)

• (es/preset) Remove deprecated preset_env function and feature module (#​10759) (fa0e0ab)

• (es/preset-env) Use phf for corejs3 entry (#​10712) (658b26d)

Testing

• (es/minifier) Update the terser test list (#​10748) (1eace01)

• (es/minifier) Update the passing test list (#​10782) (8aa888b)

• (es/parser) Add a test for duplicate labels (#​10784) (28fc643)

Pref

• (hstr) Do not compare static tag (#​10771) (5d3ce83)

v1.12.9

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Bug Fixes

• (es/lexer) Parse uppercase hex numbers correctly (#​10728) (ead6256)

• (es/lexer) Allow keywords as jsx attribute names (#​10730) (04ef20a)

• (es/minifier) Fix top level option (#​10227) (485fced)

• (es/minifier) Do not drop self-referential class expressions (#​10710) (39e6c2e)

• (es/minifier) Mark cons and alt of CondExpr as ref (#​10740) (9649cc8)

• (es/minifier) Fix termination detection (#​10741) (87bc698)

• (es/parser) Allow non-prop operand in delete (#​10733) (38132e0)

Features

• (es/minifier) Hoist more properties (#​10707) (0f2c8d5)

• (es/transforms) Expose tsEnumIsMutable to JS (#​10716) (6b3ae00)

Performance

• (es/minifier) Make CharFreq::scan in mangler table-based (#​10679) (04d39aa)

• (ts/fast-strip) Use swc_ecma_parser::Lexer (#​10677) (ffe0292)

• Optimize Input::reset_to (#​10719) (8084066)

Refactor

• (es/lexer) Useless reset (#​10714) (c9eee0b)

• (es/lexer) Cleanup read_int (#​10727) (c5fb4b1)

• (es/parser) Remove read_number_no_dot (#​10703) (fa8607f)

• (es/parser) Remove needless branching (#​10717) (b0c23b2)

Testing

• (es/preset-env) Add entry import bench (#​10722) (9868b4d)

• Make codspeed concurrent on main branch (#​10711) (4392ce3)

v1.12.7

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Bug Fixes

• (es/minifier) Fix condition for preserving properties (#​10694) (5c57a05)

• (es/minifier) Drop pure tagged string call expr (#​10702) (85cd9a7)

• (es/parser) Improve error message for template literals (#​10690) (a066b76)

• (es/parser) Rescan >= for JSX closing tag (#​10693) (fe82c4c)

• (es/parser) Support keywords as JSX member expression properties (#​10701) (643253d)

Features

• (es/parser) Add override and out keyword (#​10695) (636d7a3)

• (es/parser) Enable import attributes unconditionally (#​10706) (5ecc3ca)

• (es/parser) Expose Token API with unstable feature flag (#​10699) (750c7d4)

Performance

• (es/parser) Do not compare error each time (#​10696) (0ae0341)

Testing

• (es) Remove outdated test snapshots (#​10689) (03d520b)

v1.12.6

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Bug Fixes

• (es/parser) Throw error if JSX does not end with > (#​10687) (cb3d6db)

• (es/react-compiler) Use tsx syntax for parser (#​10682) (a355e37)

• (hstr) Support MSRV = 1.86 (#​10673) (de19d1e)

• (ts/isolated-dts) Skip parameters without accessibility modifiers in private constructors (#​10675) (1976d8e)

Features

• (ts/fast-strip) Support JSX under a feature flag (#​10656) (6a70d17)

Miscellaneous Tasks

• (ecosystem-ci) Exclude react-leaflet (cfbb1f9)

Performance

• (es/lexer) Optimize number literal parsing with fast path (#​10655) (15d0828)

• (es/lexer) Reduce allocations while lexing numbers (#​10667) (115d228)

• (es/lexer) Introduce byte_search to reduce comparison operations (#​10668) (3806ffd)

• (es/lexer) Compare \n first (#​10669) (9c41e2f)

• (es/lexer) Optimize lexing of numbers with separators (#​10665) (cac651b)

• (es/minifier) Remove needless clones (#​10661) (5f4f7dd)

• (ts/fast-strip) Prealloc buf for codegen (#​10680) (a8347fe)

Refactor

• (ts/fast-strip) Rename crate (#​10685) (6b5904c)

Build

• (wasm) Fix wasm builds (eee0578)

v1.12.5

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Bug Fixes

• (es/parser) Parse jsx entity (#​10652) (bfd3bc5)

• (es/parser) Consider reseved ident in jsx name (#​10647) (9262a59)

Performance

• (es/parser) Optimize next_token (#​10654) (1be2ca0)

Refactor

• (es/lexer) Remove faster path for \t (#​10650) (d6ac3b7)

v1.12.4

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Bug Fixes

• (es/minifier) Fix Buffer handling of minify() API (#​10643) (cdf068e)

• (es/minifier) Fix arrow inlining (#​10642) (7232c10)

• (es/parser) Don't be greedy in the end of jsx open el (#​10637) (8a2c656)

• Update par-core and par-iter (#​10629) (38f7d51)

• Fix CI (#​10641) (9df98f7)

Refactor

• (es/parser) Cleanup (#​10631) (c7c2035)

v1.12.3

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Bug Fixes

• (es/codgen) Emit leading comments of JSXExprContainer (#​10627) (2d2162a)

v1.12.2

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Bug Fixes

• (ci) Fix build of @swc/minifier (0dc5244)

• (es/codegen) Fix .map path when using output_path (01e5bd1)

• (es/parser) Allow type ann in jsx expr child (#​10626) (48f576c)

• (swc) Fix wrong caching of resolvers regarding file exts (#​10615) (68aacd1)

• (ts/isolated-dts) Fix usage dependency (#​10621) (b3677d3)

• (ts/isolated-dts) Emit properties in overloaded constructor params (#​10623) (6634ef1)

Features

• (swc_common) Allow returning None in try_lookup_source_file (#​10625) (d8e2405)

Performance

• (atoms) Improve atom! for inlinable strings (#​10612) (5113121)

• (es/minifier) Avoid calling some costly function when optimizing deep nested binary expr (#​10611) (1434571)

• (es/minifier) Remove needless JSON conversion (#​10628) (4a58dca)

• (es/parser) Reduce cmp in jsx spread child (#​10606) (fb33c13)

Refactor

• (es/parser) Cleanup - deduplicate some code (#​10608) (5f9af96)

• (es/parser) Remove token contexts (#​10547) (7ffe9d2)

v1.12.1

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Bug Fixes

• (@​swc/types) Remove nativeClassProperties (#​10592) (39032dc)

• (es/minifier) Fix top level detection of DCE (#​10603) (964a560)

• (es/minifier) Fix inlining of arrows (#​10604) (cc3bc4d)

• (es/minifier) Perform DCE on the end (#​10602) (a97b149)

• (swc_common) Add Files#is_in_file (#​10599) (e6b61eb)

Features

• (es/parser) Support parsing CommonJS (#​10600) (70bda6a)

v1.12.0

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Bug Fixes

• (@​swc/types) Add jsc.output.charset (#​10567) (26b41e8)

• (es/codegen) Don't call cmt.get_leading for dummy span (#​10568) (16e204d)

• (es/parser) Disallow spread operator(...) in JSX attribute values (#​10587) (8deba78)

• (es/typescript) Pass native_class_properties (#​10561) (7e4cd9a)

• (es/typescript) Handle export declare var in namespace (#​10579) (2daa17f)

• (ts/isolated-dts) Add edges SymbolFlags::Value and SymbolFlags::Type in exports (#​10577) (e6d4da2)

• Fix bindings (0f858fd)

Documentation

• (contributing) Add a script to patch local projects (#​10565) (3ac0a21)

Features

• (es/minifier) Regex support for format.comments (#​10571) (e441df5)

• (es/module) Add support for import.meta.main in AMD and CJS (#​10596) (759de2e)

Miscellaneous Tasks

• (plugin/runner) Update virtual-fs to dedupe dependencies (#​10594) (de667bb)

Refactor

• (es/lexer) Remove unnecessary result wrap (#​10578) (49d15df)

• (es/parser) Extract parse_jsx_attrs (#​10569) (6492786)

• (es/parser) Remove cur!(false) macro (#​10583) (c96fa23)

• (swc_common) Remove Input::find (#​10542) (494cef9)

• (swc_common) Use BytesStr instead of Lrc<String> (#​10580) (6f00973)

• (swc_common) Use swc_sourcemap instead (#​10593) (8a9f609)

Testing

• (es/parser) Enable jsx test (#​10566) (72b1efe)

v1.11.31

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Bug Fixes

• (es/codegen) Improve comments handling (#​10534) (d9ba838)

• (es/codegen) Exclude constructor from source map names (#​10551) (ef85640)

• (es/fixer) Fix a bug with awaited arrow fn expression (#​10555) (9dfdfa6)

• (es/minifier) Fix missing variable (#​10478) (6de3ef6)

• (es/minifier) Inline object of member if prop is an ident (#​10548) (e554381)

• (es/minifier) Add side effect check for test expr when compressing IfStmt (#​10550) (3e9728e)

• (es/minifier) Fix typo in an option name (#​10554) (a303941)

• (es/parser) Emit syntax errors for strict mode in non-module or s