oxc/crates/oxc_minifier/CHANGELOG.md

Changelog

All notable changes to this package will be documented in this file.

The format is based on Keep a Changelog, and this project does not adhere to Semantic Versioning until v1.0.0.

[0.47.1] - 2025-01-19

Bug Fixes

• 7b219a9 minifier: Fix dce shadowed undefined (#8582) (Boshen)

[0.47.0] - 2025-01-18

Features

• 4d4e805 minifier: Collapse if stmt with empty consequent (#8577) (camc314)
• 991a22f minifier: Fold Array::concat into literal (#8442) (sapphi-red)
• 3dc2d8b minifier: Fold string concat chaining (#8441) (sapphi-red)
• a4ae450 minifier: Fold array concat chaining (#8440) (sapphi-red)
• 7cc81ef minifier: Fold invalid typeof comparisons (#8550) (camc314)
• 927f43f minifier: Improve .charCodeAt(arg) when arg is valid (#8534) (Boshen)
• 06f14d5 minifier: Remove empty class static block class Foo { static {} } (#8525) (Boshen)
• 1860411 minifier: Remove last redundant return statement (#8523) (Boshen)

Bug Fixes

• 65c596d minifer: Keep idents if not in scope when minimizing array exprs (#8551) (camc314)
• f57aac2 minifier: Incorrect folding of expr in bool ctx (#8542) (camc314)
• 946ad76 minifier: (-Infinity).toString() -> '-Infinity' (#8535) (Boshen)
• b1d0186 minifier: Do not fold !!void b (#8533) (Boshen)
• 53adde5 minifier: x['-2147483648'] -> x[-2147483648] (#8528) (Boshen)
• 405b73d minifier: Do not change delete undefined to delete void 0 (#8527) (Boshen)
• 92e44cb minifier: Do not remove undefined in var x = undefined (#8526) (Boshen)
• 209e313 minifier: class C { ['-1']() {} } cannot be minifized (#8516) (Boshen)
• 6585463 minifier: Always keep the last value of sequence expression (#8490) (Boshen)

Refactor

• 8f57929 minifier: Merge try_compress_type_of_equal_string into try_minimize_binary (#8561) (sapphi-red)

Testing

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

[0.46.0] - 2025-01-14

Features

• 8accfef minifier: Minify var x; void x -> void 0 (#8466) (Boshen)
• 870a583 minifier: Fold false['toString'] (#8447) (Boshen)
• 4ad695d napi/minify: Implement napi (#8478) (Boshen)

Bug Fixes

• 4c6675c minifier: Do not convert while to fors in DCE (#8484) (Boshen)
• 1d6e84d minifier: Fix incorrect null.toString() and 1n.toString() (#8464) (Boshen)
• 25d4bf9 minifier: Remove usage of empty spans (#8462) (Boshen)
• dd64340 minifier: Keep return undefined in async generator function (#8439) (Boshen)

Performance

• 8fc238a minifier: Merge Normalize and RemoveSyntax pass (#8467) (Boshen)
• 372eb09 minifier: Preallocate mangler's semantic data (#8451) (Boshen)

[0.45.0] - 2025-01-11

Features

• 6c7acac allocator: Implement IntoIterator for &mut Vec (#8389) (overlookmotel)
• 41ddf60 minfier: Add CompressOptions::target (#8179) (Boshen)
• d56020b minifier: Drop 0 from new Int8Array(0) and other TypedArrays (#8431) (sapphi-red)
• f935d94 minifier: Remove new from NativeErrors / AggregateError (#8430) (sapphi-red)
• dab7a51 minifier: Minimize not !(x === undefined) -> x !== undefined (#8429) (Boshen)
• 0e7bab8 minifier: Remove if(false){} in a single pass (#8421) (Boshen)
• 5b5b844 minifier: Fold ambiguous if else (#8415) (Boshen)
• 438a6e7 minifier: Minimize conditions in boolean context (#8381) (Boshen)
• 793cb43 minifier: a != null ? a : b -> a ?? b (#8352) (camc314)
• 814da55 minifier: Compress x = x || 1 to x ||= 1 (#8368) (sapphi-red)
• a596821 minifier: Compress a.b = a.b + c to a.b += c (#8367) (sapphi-red)
• 579eb60 minifier: Compress a.b || (a.b = c) to a.b ||= c (#8366) (sapphi-red)
• f367a16 minifier: Port esbuild conditional expr minification (#8351) (camc314)
• 8d52cd0 minifier: Merge assign expression in conditional expression (#8345) (sapphi-red)
• a69d15f minifier: Compress new Array(2) -> [,,] (#8344) (sapphi-red)
• 819c475 minifier: Compress new Array(7n) -> [7n] (#8343) (sapphi-red)
• e085d66 minifier: Remove empty IIFE (#8340) (Boshen)
• 2c2e483 minifier: Fold object spread ({ ...null }) -> ({}) (#8339) (Boshen)
• 6220e05 minifier: Remove empty if statment if (test) {} -> test (#8336) (Boshen)
• a76dfae minifier: Remove label statement with empty body (#8333) (Boshen)
• e88a6bd minifier: Minimize !0 + null !== 1 -> !0 + null != 1 (#8332) (Boshen)
• ec88c68 minifier: Compress a || (a = b) to a ||= b (#8315) (sapphi-red)
• e6fe84d minifier: Compress a = a + b to a += b (#8314) (sapphi-red)
• 9ea4e31 minifier: Remove new from new Error/new Function/new RegExp (#8313) (sapphi-red)
• 051fbb6 minifier: Minimize x["0"] -> x[0] (#8316) (Boshen)
• a542013 minifier: Minimize do{}while(true) -> do;while(true) (#8311) (Boshen)
• e3ff81e minifier: Minimize (x = 1) === 1 -> (x = 1) == 1 (#8310) (Boshen)
• 4b68cc0 minifier: Minimize empty try statement (#8309) (Boshen)
• 922c514 minifier: Fold .toString() (#8308) (Boshen)
• 66a2443 minifier: Minify sequence expressions (#8305) (camc314)
• af65c36 minifier: Minimize double negated binary expressions (#8304) (camc314)
• 76c778b minifier: Remove logical nots when arg is a delete expression (#8303) (camc314)
• 5ed439b minifier: Minify typeof in binary expressions (#8302) (camc314)
• 6afc590 minifier: Compress typeof addition string (#8301) (camc314)
• ecc789f minifier: Fold if(x >> y == 0){} -> if(!(x >> y)){} (#8277) (Boshen)
• 0e3b79a minifier: Fold String() -> '', Number() -> false (#8274) (Boshen)
• c9cf593 minifier: Compress property key {[1]: _} -> {1: _} (#8272) (Boshen)
• b92b2ab minifier: Fold BigInt(1n) -> 1n (#8270) (Boshen)
• a4df387 minifier: Compress loose equals undefined (#8268) (camc314)
• f000596 minifier: Minify call expressionsto Number (#8267) (camc314)
• 092aeaf minifier: Flatten spread args in call expressions (#8266) (camc314)
• 04ec38d minifier: Remove unused arrow function expressions (#8262) (camc314)
• e446c15 minifier: Improve minimizing unary not expressions (#8261) (camc314)
• 7f19211 minifier: Minimize unary expression statements (#8256) (camc314)
• cec63e2 minifier: {} evals to f64::NaN (Boshen)
• 4d8a08d minifier: Improve constant evaluation (#8252) (Boshen)
• e84f267 minifier: Compress more property keys (#8253) (Boshen)
• d1224f9 minifier: Improve minimizing conditional expressions (#8251) (camc314)
• 65f46f5 minifier: Constant fold String.fromCharCode (#8248) (Boshen)
• bd8d677 minifier: Minimize ~undefined, ~null, ~true, ~false (#8247) (Boshen)
• f73dc9e minifier: Constant fold 'x'.toString() and true.toString() (#8246) (Boshen)
• fd5af73 minifier: Minimize Number constructor (#8245) (Boshen)
• 2f52f33 minifier: Minsize !!!foo ? bar : baz -> foo ? baz : bar (#8244) (Boshen)
• ccdc039 minifier: Always put literals on the rhs of equal op 1==x => x==1 (#8240) (Boshen)
• 39353b2 minifier: Improve minimizing conditionals (#8238) (Cameron)
• c90fc16 minifier: Restore conditional minification and fix edge case (#8235) (camc314)
• 6c8ee9f minifier: Remove last redundant return statement (#8234) (Boshen)
• 51f4792 minifier: Minimize foo ? foo : bar and foo ? bar : foo (#8229) (Boshen)
• 6e2ec17 minifier: Statement fusion switch cases; improved minimize exit poitns (#8228) (Boshen)
• 574a242 minifier: Minimize all variants of typeof x == 'undefined' (#8227) (Boshen)
• 2041477 minifier: Fold if(x)return;y -> if(!x)y (#8226) (Boshen)
• 9c1afa4 minifier: Optional catch binding when catch param is unused (#8221) (Boshen)
• 4a29845 minifier: Add ConvertToDottedProperties (#8212) (Boshen)
• 2786dea minifier: Add RemoveUnusedCode (#8210) (Boshen)
• cd274ee minifier: Minimize logical exprs (#8209) (Cameron)
• 4ae15df minifier: Imprve more conditional expr minification with boolean lit (#8208) (camc314)
• 3202b4f minifier: Imprve conditional expr minification with boolean lit (#8207) (camc314)
• 3b45011 minifier: Handle conditional expr with boolean lit (#8206) (camc314)
• 4c2059a minifier: Reverse negated conditional exprs (#8205) (camc314)
• 4804933 minifier: Add MinimizeExitPoints and ExploitAssigns` boilerplate (#8203) (Boshen)
• bf266e1 minifier: Try collapse conditional to logical or expr (#8197) (Cameron)
• 06e1780 minifier: Improve StatementFusion (#8194) (Boshen)
• 42e211a minifier: Only constant fold numbers when result is smaller (#8092) (Boshen)
• d0de560 minifier: Change NaN to f64::NAN (#8191) (Boshen)
• cef8eb8 minifier: Change foo?.['bar'] to foo?.bar (#8176) (翠 / green)
• 8149e34 minifier: Optional catch binding when es target >= es2019 (#8180) (Boshen)
• fc43ec5 minifier: Fold string.length / array.length (#8172) (sapphi-red)
• 29dc0dc minifier: Change foo['bar'] -> foo.bar (#8169) (Boshen)
• 3c5718d minifier: Fold typeof foo == undefined into foo == undefined when possible (#8160) (翠 / green)
• f3a36e1 minifier: Fold typeof foo != "undefined" into typeof foo < "u" (#8159) (翠 / green)
• 37c9959 minifier: Normalize Infinity into f64::Infinity (#8148) (Boshen)
• 8fb71f5 minifier: Minify string PropertyKey (#8147) (Boshen)
• 6615e1e minifier: Constant fold instanceof (#8142) (翠 / green)
• 2b2a373 minifier: Minimize a + 'b' + 'c' -> a + 'bc' (#8137) (Boshen)
• 213364a minifier: Minimize if (x) if (y) z -> if (x && y) z (#8136) (Boshen)
• 6b51e6d minifier: Minimize if(foo) bar else baz -> foo ? bar : baz (#8133) (Boshen)
• f615bfa minifier: Minimize if (x) return; return 1 -> return x ? void 0 : 1 (#8130) (Boshen)
• f0b1ee5 minifier: Minimize if(!x) foo() -> x || foo() (#8122) (Boshen)
• f8200a8 minifier: Minimize if(foo) bar -> foo && bar (#8121) (Boshen)
• 72d9967 minifier: Add Normalize ast pass (#8120) (Boshen)
• fef0b25 minifier: Collapse var into for loop initializer (#8119) (Boshen)
• 2331ea8 minifier: typeof foo === 'number' => typeof foo == 'number' (#8112) (Boshen)
• ad9a0a9 mininifier: Minimize variants of a instanceof b == true (#8241) (Boshen)

Bug Fixes

• 74572de ecmascript: Incorrect to_int_32 value for Infinity (#8144) (翠 / green)
• 5c63414 mangler: Keep exported symbols for top_level: true (#7927) (翠 / green)
• 3c93549 minifier: Dce if statement should keep side effects and vars (#8433) (Boshen)
• 52f88c0 minifier: Rotate associative operators to make it more idempotent (#8424) (camc314)
• a80460c minifier: Correctly set self.changed when minimizing if stmts (#8420) (camc314)
• d4ca8d4 minifier: !!x is not idempotent in RemoveDeadCode (#8419) (Boshen)
• 357b61d minifier: Do not minify Object.defineProperty in sequence expressions (#8416) (Boshen)
• 0efc845 minifier: +0n produces TypeError (#8410) (Boshen)
• 7ce6a7c minifier: a in b has error throwing side effect (#8406) (Boshen)
• 2f3a9dc minifier: Cannot transform property key #constructor (#8405) (Boshen)
• c0a3dda minifier: instanceof has error throwing side effect (#8378) (Boshen)
• 5516f7f minifier: Do not fold object comparisons (#8375) (Boshen)
• cb098c7 minifier: Computed property key prototype cannot be changed (#8373) (Boshen)
• 82ee77e minifier: Do not remove shadowned undefined in return statement (#8371) (Boshen)
• f87da16 minifier: Do not fold literals in -0 != +0 (#8278) (Boshen)
• 62a2644 minifier: Handle arrow fn expressions correctly in is_in_boolean_context (#8260) (camc314)
• d2f8eaa minifier: Fix panic in peephole_minimize_conditions (#8242) (Boshen)
• a698def minifier: Fix incorrect return value for (x ? true : y) (#8233) (Boshen)
• 56b7f13 minifier: Do not constant fold 0 instanceof F (#8199) (Boshen)
• 75d5f17 minifier: Minify string PropertyKey (#8177) (sapphi-red)

Documentation

• aaa009d minifier: Clarify assumptions for compressor (#8404) (翠 / green)

Refactor

• fb2acd8 minifier: Change minimize conditionals into a loop (#8413) (Boshen)
• baaec60 minifier: Remove the buggy ?? transform (#8411) (Boshen)
• 1c4658d minifier: Change ast passes order, !in_fixed_loop happen last (#8380) (Boshen)
• 09f0f48 minifier: Remove the buggy minimize_exit_points implementation (#8349) (Boshen)
• 9a5c66a minifier: Clean up (#8346) (Boshen)
• 98f2b1c minifier: Clean up peephole_substitute_alternate_syntax (#8327) (Boshen)
• fc662b7 minifier: Handle big int values later (#8324) (Boshen)
• d16e598 minifier: Clean up peephole_replace_known_methods (#8306) (Boshen)
• b8d26ea minifier: Move optional catch param to peephole_substitute_alternate_syntax (#8282) (Boshen)
• 0845162 minifier: Clean up ReplaceKnownMethods (Boshen)
• 7c7f5d7 minifier: Clean up peephole_fold_constants (Boshen)
• bf0fbce minifier: Improve constant fold numbers (#8239) (Boshen)
• 62f8fba minifier: Move all conditional minification logic to minimze_conditions (#8231) (camc314)
• cfb51f2 minifier: Fuse ast passes (#8184) (Boshen)
• bf9cafe minifier: Clean up peephole_substitute_alternate_syntax a little bit (Boshen)
• 75264ed minifier: Clean up try_optimize_block (#8139) (Boshen)
• c22062b minifier: Cleanup peephole_minimize_conditions (#8114) (Boshen)
• e594c39 minifier: Clean up peephole_substitute_alternate_syntax.rs (#8111) (Boshen)

Testing

• 3149fe0 minifier: Add anonymous function test case for logical expression to logical assignment compression (#8347) (sapphi-red)
• 91b42de minifier: Enable some passing tests (#8250) (camc314)
• 1fa5341 minifier: Port tests from ConvertToDottedPropertiesTest (#8175) (sapphi-red)

[0.44.0] - 2024-12-25

Features

• 5397fe9 minifier: Constant fold undefined?.bar -> undefined (#8075) (Boshen)
• 1932f1e minifier: Fold foo === undefined || foo === null (#8063) (翠 / green)

Bug Fixes

• b605baa minifier: Constant fold strings with tab char (#8096) (Boshen)

Refactor

• 8b54d89 minifier: Remove parens must happen on enter (#8060) (Boshen)
• 7cb84f3 minifier: Only minify on ast node exit (#8059) (Boshen)
• 77d845a minifier: Fuse DCE AST passes (#8058) (Boshen)
• 6123f5e minifier: Fold statements on exit (#8057) (Boshen)

[0.42.0] - 2024-12-18

Features

• db9e93b mangler: Mangle top level variables (#7907) (翠 / green)
• 075bd16 minifier: Fold bitwise operation (#7908) (翠 / green)

Bug Fixes

• 4799471 minfier: Bigint bitwise operation only works with bigint (#7937) (Boshen)
• de8a86e minifier: Incorrect minification in try_fold_left_child_op (#7949) (翠 / green)

Refactor

• 3858221 global: Sort imports (#7883) (overlookmotel)
• 1314c97 minifier: Expose dce as an API instead of an option (#7957) (Boshen)

Styling

• 7fb9d47 rust: cargo +nightly fmt (#7877) (Boshen)

[0.40.0] - 2024-12-10

• ebc80f6 ast: [BREAKING] Change 'raw' from &str to Option (#7547) (Song Gao)

Refactor

[0.39.0] - 2024-12-04

• f2f31a8 traverse: [BREAKING] Remove unsound APIs (#7514) (overlookmotel)

• b0e1c03 ast: [BREAKING] Add StringLiteral::raw field (#7393) (Boshen)

Features

• 97af341 minifier: Minify alternated one child if block (#7231) (7086cmd)
• ac0d25c minifier: Minify one child if statement expression (#7230) (Ethan Goh)

Bug Fixes

• 896ff86 minifier: Do not fold if statement block with lexical declaration (#7519) (Boshen)

Performance

• c133693 minifier: Fuse ast passes (#7493) (Boshen)

Refactor

• 63a66cf minifier: Remove unused ast pass from DCE (#7540) (Boshen)
• 625a5ba minifier: Improve ast passes (#7518) (Boshen)

Testing

• 9d6e14b ecmascript: Move tests to oxc_minifier due to cyclic dependency with oxc_parser (#7542) (Boshen)

[0.37.0] - 2024-11-21

Features

• 39afb48 allocator: Introduce Vec::from_array_in (#7331) (overlookmotel)

Bug Fixes

• cf99be0 minifier: Do not compare bigint with object (#7294) (7086cmd)

Testing

• 0d6a66a minifier: Fix minimize condition tests (#7222) (7086cmd)

[0.36.0] - 2024-11-09

Refactor

• a297765 minifier: Use map and and_then instead of let else (#7178) (7086cmd)

[0.35.0] - 2024-11-04

Refactor

• 97caae1 minifier: Do not use AstBuilder::*_from_* methods (#7072) (overlookmotel)
• 2c7ac29 minifier: Remove Tri, use Option<bool> instead (#6912) (Boshen)

[0.34.0] - 2024-10-26

Features

• 4429754 ecmascript: Constant eval null to number (#6879) (Boshen)
• fd57e00 ecmascript: Add abstract_relational_comparison to dce (#6846) (Boshen)
• 8bcaf59 minifier: Late peeophole optimization (#6882) (Boshen)
• 860cbca minifier: Implement folding simple arrow fns (#6875) (camc314)
• c26020e minifier: Implement folding String.prototype.replaceAll (#6871) (camc314)
• 50744f3 minifier: Implement folding String.prototype.replace (#6870) (camc314)
• fccf82e minifier: Implement folding substring string fns (#6869) (camc314)
• e6a5a1b minifier: Implement folding charCodeAt string fns (#6475) (camc314)

Bug Fixes

• a47c70e minifier: Fix remaining runtime bugs (#6855) (Boshen)
• 686727f minifier: Reference read has side effect (#6851) (Boshen)
• c658d93 minifier: Keep template literals with expressions (#6849) (Boshen)

Refactor

• 423d54c rust: Remove the annoying clippy::wildcard_imports (#6860) (Boshen)

[0.33.0] - 2024-10-24

Features

• b4bc300 minifier: Improve folding block stmts (#6793) (camc314)
• 34fe7c0 minifier: Dce meaningless labeled statements (#6688) (7086cmd)

Bug Fixes

• 2f6ad42 codegen: Print negative bigint 1n- -1n correctly after constant folding (#6798) (Boshen)
• ca79993 minifier: Do not dce object literals yet (#6839) (Boshen)
• ec5a19b minifier: Do not remove binary expressions (#6829) (Boshen)
• 22355f7 minifier: Do not remove undefined for destructuring patterns (#6828) (Boshen)

Refactor

• 8b25131 minifier: Binary operations use ConstantEvaluation (#6700) (Boshen)

[0.32.0] - 2024-10-19

Features

• e5ed6a5 codegen: Print negative numbers (#6624) (Boshen)
• 15c04e5 ecmascript: Add feature flag for constant evaluation (Boshen)
• e561880 ecmascript: Add constant_evaluation and side_effects code (#6550) (Boshen)
• 3556062 ecmascript: Add ConstantEvaluation (#6549) (Boshen)
• 39c2e66 ecmascript: Add ToBigInt and StringToBigInt (#6508) (Boshen)
• 6f22538 ecmascript: Add ToBoolean, ToNumber, ToString (#6502) (Boshen)
• 071e564 minifier: Finish implementing folding object expressions (#6586) (camc314)
• 590925a minifier: Finish implementing folding array expressions (#6575) (camc314)
• ef237cf minifier: Complete implementation of statement fusion (#6566) (camc314)
• 97c8a36 minifier: Implement collapse-variable-declarations (#6464) (dalaoshu)
• 096e590 minifier: Implement folding charAt string fns (#6436) (camc314)
• e5a6f5d minifier: Implement converting template literals to strings (#6486) (camc314)
• 14d0590 minifier: Implement folding of simple function calls (Boolean) (#6484) (camc314)
• 7fbc7b6 minifier: Implement folding of simple function calls (String) (#6483) (camc314)
• a4f57a4 minifier: Implement folding indexOf and lastIndexOf string fns (#6435) (camc314)
• 3677ef8 minifier: Dce ExpressionStatements with no side effect (#6457) (7086cmd)
• 06ea121 minifier: Fold for statement (#6450) (7086cmd)
• a9544ae minifier: Partially implement minification for some known string methods (#6424) (camc314)
• 9dc4ee9 minifier: Implement block stmt support for StatementFusion (#6422) (camc314)
• ebbf77d minifier: Implement calculations for NumberValue (#6419) (7086cmd)
• 97ac179 minifier: Arithmetic operations for infinity. (#6332) (7086cmd)
• 13b0b0b minifier: Fold literal object constructors on window (#6379) (dalaoshu)

Bug Fixes

• 389d261 minifier: ~~ operator should only work on numbers (#6598) (Boshen)
• 16bea12 minifier: Use to_js_string() instead of fs64::to_string (#6597) (Boshen)
• a71e8a0 minifier: Preserve init variable declarations when removing for statements during DCE (#6551) (magic-akari)

Refactor

• 6d041fb ecmascript: Remove NumberValue (#6519) (Boshen)
• 856cab5 ecmascript: Move ToInt32 from oxc_syntax to oxc_ecmascript (#6471) (Boshen)
• f4cdc56 minifier: Use constant folding unary expression from oxc_ecmascript (#6647) (Boshen)
• 67ad08a minifier: Unify ValueType (#6545) (Boshen)
• bbca743 minifier: Move string methods to oxc_ecmascript (#6472) (Boshen)
• 702c049 minifier: Move compress block to dce (#6468) (7086cmd)
• 46a38c6 minifier: Remove allow clippy::unused_self (#6441) (Boshen)
• 994b60b minifier: Use builtin get_number_value. (#6335) (7086cmd)
• 435a89c oxc: Remove useless allocator.alloc(program) calls (#6571) (Boshen)
• 1a90ec4 rust: Backport v1.82.0 changes to main branch first (#6690) (Boshen)

Testing

• c5deb32 minifier: Port the rest of tests (#6420) (7086cmd)
• e59da61 minifier: Add all test cases for collapse_variable_declarations (#6421) (dalaoshu)
• 73d6a4a minifier: Port all replace_known_methods tests. (#6418) (7086cmd)

[0.31.0] - 2024-10-08

• 020bb80 codegen: [BREAKING] Change to CodegenReturn::code and CodegenReturn::map (#6310) (Boshen)

• 82ab689 transformer,minifier: [BREAKING] Move define and inject plugin from minifier to transformer (#6199) (Boshen)

Features

• e304e8c minifier: Minify exponential arithmetic operation. (#6281) (7086cmd)
• f9ae70c minifier: Minify basic arithmetic calculations. (#6280) (7086cmd)
• 4008afe minifier: Fold array and object constructors (#6257) (camchenry)
• 115ccc9 minifier: Bitwise not in exceeded value. (#6235) (7086cmd)
• ee6c850 minifier: Scaffold peephole replace known methods. (#6245) (7086cmd)
• c32af57 minifier: Fold demical bitwise not for bigint. (#6233) (7086cmd)
• 23b6464 minifier: Fold true / false comparison. (#6225) (7086cmd)
• 585ccda minifier: Support subtraction assignment. (#6214) (7086cmd)
• cca0034 minifier: Handle positive NaN and Infinity. (#6207) (7086cmd)
• dac8f09 minifier: Minify unary plus negation. (#6203) (7086cmd)
• 3b79e1b minifier: Evaluate bigint in fold constant (#6178) (Boshen)
• 9e62396 syntax_operations: Add crate oxc_ecmascript (#6202) (Boshen)

Bug Fixes

• d953a6b minifier: Correct the reference link (#6283) (dalaoshu)
• 37cbabb minifier: Should not handle the strict operation for bool comparison. (#6261) (7086cmd)
• e29c067 minifier: Handle exceeded shifts. (#6237) (7086cmd)

Refactor

• ac5a23f minifier: Use ctx.ast.vec instead of Vec::new. (#6331) (7086cmd)
• 1cee207 minifier: Some boilerplate work for PeepholeFoldConstants (#6054) (Boshen)

Testing

• 964d71e minifier: Add arithmetic tests for fold constants. (#6269) (7086cmd)
• fcb4651 minifier: Enable null comparison with bigint. (#6252) (7086cmd)

[0.30.2] - 2024-09-27

Features

• 60c52ba ast: Allow passing span to void_0 method (#6065) (Dunqing)

Bug Fixes

• e0a8959 minifier: Compute void number as undefined (#6028) (Boshen)

[0.30.1] - 2024-09-24

Features

• 5c323a2 minifier: Loop compressor passes (#6013) (Boshen)

Refactor

• 0a2f687 minifier: Move dce conditional expression to RemoveDeadCode (#5971) (Boshen)

[0.30.0] - 2024-09-23

Features

• 9076dee minifier: Implement part of StatementFusion (#5936) (Boshen)

Bug Fixes

• 362c427 mangler,codegen: Do not mangle top level symbols (#5965) (Boshen)

Refactor

• 943bd76 minifier: Move tests to their src files (#5912) (Boshen)
• cbaeea6 minifier: Clean up some tests (#5910) (Boshen)
• 144611e minifier: Align ast pass names with closure compiler (#5908) (Boshen)

[0.29.0] - 2024-09-13

Features

• 953fe17 ast: Provide NONE type for AST builder calls (#5737) (overlookmotel)
• e968e9f minifier: Constant fold nullish coalescing operator (#5761) (Boshen)
• 6bc13f6 minifier: Add MinimizeConditions pass (#5747) (Boshen)

Bug Fixes

• 8ff013a minifier: Handle dce CallExpression::callee (#5752) (Boshen)

Performance

• 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)

[0.28.0] - 2024-09-11

• ee4fb42 ast: [BREAKING] Reduce size of WithClause by Boxing it (#5677) (Boshen)

• 4a8aec1 span: [BREAKING] Change SourceType::js to SourceType::cjs and SourceType::mjs (#5606) (Boshen)

• b060525 semantic: [BREAKING] Remove source_type argument from SemanticBuilder::new (#5553) (Boshen)

Features

• 68c3cf5 minifier: Fold void 1 -> void 0 (#5670) (Boshen)
• c6bbf94 minifier: Constant fold unary expression (#5669) (Boshen)
• 86256ea minifier: Constant fold typeof (#5666) (Boshen)

Bug Fixes

• b8f8dd6 minifier/replace_global_defines: Do not replace shadowed identifiers (#5691) (Boshen)

Performance

Refactor

• 067f9b5 semantic: Introduce IsGlobalReference trait (#5672) (Boshen)

[0.27.0] - 2024-09-06

Features

• ba4b68c minifier: Remove parenthesized expression for dce (#5439) (Boshen)

[0.25.0] - 2024-08-23

• 78f135d ast: [BREAKING] Remove ReferenceFlag from IdentifierReference (#5077) (Boshen)

• c4c08a7 ast: [BREAKING] Rename IdentifierReference::reference_flags field (#5024) (overlookmotel)

• d262a58 syntax: [BREAKING] Rename ReferenceFlag to ReferenceFlags (#5023) (overlookmotel)

• ce4d469 codegen: [BREAKING] Remove const generic MINIFY (#5001) (Boshen)

Features

• 2b21be3 oxc_minifier: Define plugin with postfix wildcard (#4979) (IWANABETHATGUY)

Refactor

• 0f64d10 minifier: Remove duplicated helper move_out_expression (#5007) (IWANABETHATGUY)
• b4407c4 oxc,mangler: oxc crate add mangler; mangler use options API (Boshen)

[0.24.3] - 2024-08-18

Bug Fixes

• 46cb1c1 minifier: Handle Object.definedPropert(exports for @babel/types/lib/index.js (#4933) (Boshen)
• 81fd637 minifier: Do not fold 0 && (module.exports = {}) for cjs-module-lexer (#4878) (Boshen)
• 879a271 minifier: Do not join require calls for cjs-module-lexer (#4875) (Boshen)

[0.24.2] - 2024-08-12

Performance

• 504ac0b minifier: InjectGlobalVariables only add to replaced_dot_defines once for each (#4803) (overlookmotel)
• 35f2742 minifier: Avoid repeated Atom creation in InjectGlobalVariables (#4802) (overlookmotel)

[0.24.1] - 2024-08-10

Features

• c519295 minifier: Add InjectGlobalVariables plugin (@rollup/plugin-inject) (#4759) (Boshen)

[0.24.0] - 2024-08-08

Features

• 229a0e9 minifier: Implement dot define for member expressions (#3959) (camc314)

Bug Fixes

• 94d3c31 minifier: Avoid removing function declaration from KeepVar (#4722) (Boshen)
• bf43148 minifier: Do not remove_syntax in dead_code_elimination (Boshen)
• bf48c7f minifier: Fix keep_var keeping vars from arrow functions (#4680) (Boshen)
• 9be29af minifier: Temporarily fix shadowed undefined variable (#4678) (Boshen)
• e8b662a minifier: Various fixes to pass minifier conformance (#4667) (Boshen)

Performance

• 0f5e982 minifier: Only visit arrow expression after dropping console.log (#4677) (Boshen)

Refactor

• fbfd852 minifier: Add NodeUtil trait for accessing symbols on ast nodes (#4734) (Boshen)
• e0832f8 minifier: Use oxc_traverse for AST passes (#4725) (Boshen)
• 17602db minifier: Move tests and files around (Boshen)
• 3289477 minifier: Clean up tests (#4724) (Boshen)
• e78cba6 minifier: Ast passes infrastructure (#4625) (Boshen)

[0.23.1] - 2024-08-06

Features

• 229a0e9 minifier: Implement dot define for member expressions (#3959) (camc314)

Bug Fixes

• bf48c7f minifier: Fix keep_var keeping vars from arrow functions (#4680) (Boshen)
• 9be29af minifier: Temporarily fix shadowed undefined variable (#4678) (Boshen)
• e8b662a minifier: Various fixes to pass minifier conformance (#4667) (Boshen)

Performance

• 0f5e982 minifier: Only visit arrow expression after dropping console.log (#4677) (Boshen)

Refactor

• e78cba6 minifier: Ast passes infrastructure (#4625) (Boshen)

[0.23.0] - 2024-08-01

Features

• a558492 codegen: Implement BinaryExpressionVisitor (#4548) (Boshen)

Bug Fixes

• 6a94e3f codegen: Fixes for esbuild test cases (#4503) (Boshen)

[0.22.0] - 2024-07-23

Features

• 0deb027 minfier: Dce if (xxx) else if (false) { REMOVE } (#4407) (Boshen)
• e33ec18 minifier: Compress typeof foo == "undefined" into typeof foo > "u" (#4412) (Boshen)

Bug Fixes

• 267f7c4 minifier: Skip Object.defineProperty(exports, ...) for cjs-module-lexer (#4409) (Boshen)

[0.21.0] - 2024-07-18

Features

• 83c2c62 codegen: Add option for choosing quotes; remove slow choose_quot method (#4219) (Boshen)
• 5d17675 mangler: Add debug mode (#4314) (Boshen)
• e3e663b mangler: Initialize crate and integrate into minifier (#4197) (Boshen)
• c818472 minifier: Dce conditional expression && or || (#4190) (Boshen)

Bug Fixes

• e167ef7 codegen: Print parenthesis properly (#4245) (Boshen)
• f144082 minifier: RemoveDeadCode should visit nested expression (#4268) (underfin)

Refactor

• 2c7bb9f ast: Pass final ScopeFlags into visit_function (#4283) (overlookmotel)

[0.20.0] - 2024-07-11

Features

• 54cd04a minifier: Implement dce with var hoisting (#4160) (Boshen)
• 44a894a minifier: Implement return statement dce (#4155) (Boshen)

[0.19.0] - 2024-07-09

• b936162 ast/ast_builder: [BREAKING] Shorter allocator utility method names. (#4122) (rzvxa)

Refactor

[0.18.0] - 2024-07-09

• d347aed ast: [BREAKING] Generate ast_builder.rs. (#3890) (rzvxa)

Features

• c6c16a5 minifier: Dce all conditional expressions (#4135) (Boshen)

[0.17.1] - 2024-07-06

Bug Fixes

• 719fb96 minifier: Omit dce undefined which can be a shadowed variable (#4073) (Boshen)

[0.17.0] - 2024-07-05

Features

• 0da9dfb minifier: Add constant folding to remove dead code (#4058) (Boshen)

Bug Fixes

• aaac2d8 codegen: Preserve parentheses from AST instead calculating from operator precedence (#4055) (Boshen)

Refactor

• edb557c minifier: Add a folder struct for constant folding (#4057) (Boshen)

[0.16.2] - 2024-06-30

Performance

• 1eac3d2 semantic: Use Atom<'a> for References (#3972) (Don Isaac)

[0.16.0] - 2024-06-26

• 6796891 ast: [BREAKING] Rename all instances of BigintLiteral to BigIntLiteral. (#3898) (rzvxa)

Features

• dd540c8 minifier: Add skeleton for ReplaceGlobalDefines ast pass (#3803) (Boshen)
• f3c3970 minifier: Add skeleton for RemoveDeadCode ast pass (#3802) (Boshen)

Bug Fixes

Refactor

• 8027b1e minifier: Change prepass to ast_passes::remove_parens (#3801) (Boshen)

[0.15.0] - 2024-06-18

• 5c38a0f codegen: [BREAKING] New code gen API (#3740) (Boshen)

• 534242a codegen: [BREAKING] Remove CodegenOptions::enable_typescript (#3674) (Boshen)

Features

• 38a75e5 coverage: Improve codegen (#3729) (Boshen)

Bug Fixes

• 8f64d99 minifier: Respect join_vars: false option (#3724) (mysteryven)

[0.14.0] - 2024-06-12

Refactor

• e90e6a2 minifier: Make Prepass Copy (#3603) (overlookmotel)

[0.13.4] - 2024-06-07

Bug Fixes

• affb2c8 codegen: Print indentation before directive (#3512) (Dunqing)

[0.13.2] - 2024-06-03

Features

• 0cdb45a oxc_codegen: Preserve annotate comment (#3465) (IWANABETHATGUY)

[0.13.1] - 2024-05-22

Features

• e2dd8ac syntax: Export is_reserved_keyword and is_global_object method (#3384) (Boshen)

[0.13.0] - 2024-05-14

Refactor

• 7e1fe36 ast: Squash nested enums (#3115) (overlookmotel)
• a8af5de syntax: Move number related functions to number module (#3130) (Boshen)

[0.11.0] - 2024-03-30

Refactor

• fc38783 ast: Add walk_mut functions (#2776) (Ali Rezvani)
• d9b77d8 sourcemap: Change sourcemap name to take a reference (#2779) (underfin)

[0.10.0] - 2024-03-14

Features

• 4f9dd98 span: Remove From<String> and From<Cow> API because they create memory leak (#2628) (Boshen)

Refactor

• cbc2f5f Remove unused dependencies (#2718) (Boshen)- 8001b2f Make CompactStr immutable (#2620) (overlookmotel)- 0646bf3 Rename CompactString to CompactStr (#2619) (overlookmotel)

[0.9.0] - 2024-03-05

Refactor

• ef932a3 codegen: Clean up API around building sourcemaps (#2602) (Boshen)
• 903f17c span: Move base54 method to mangler (#2523) (Boshen)

[0.8.0] - 2024-02-26

Features

• 6b3b260 Codegen: Improve codegen (#2460) (Andrew McClenaghan)
• e6d536c codegen: Configurable typescript codegen (#2443) (Andrew McClenaghan)

Refactor

• d08abc6 ast: S/NumberLiteral/NumericLiteral to align with estree (Boshen)
• e6b391a ast: S/ArrowExpression/ArrowFunctionExpression to align estree (Boshen)- a2c173d Remove panic! from examples (#2454) (Boshen)- 70a0076 Remove global allocator from non-user facing apps (#2401) (Boshen)

[0.7.0] - 2024-02-09

Refactor

• 1822cfe ast: Fix BigInt memory leak by removing it (#2293) (Boshen)

[0.6.0] - 2024-02-03

Features

• 1ee6d8c codegen: Move string test to codegen (#2150) (Wenzhe Wang)
• 18a58d4 minifier: Handle more expressions for side effects (#2062) (Bradley Farias)

Bug Fixes

• 29dc5e6 codegen: Add parenthesis in binary expression by precedence (#2067) (Wenzhe Wang)

[0.4.0] - 2023-12-08

Features

• c6ad660 semantic: Support scope descendents starting from a certain scope. (#1629) (Miles Johnson)

Refactor

• 1a576f6 rust: Move to workspace lint table (#1444) (Boshen)

[0.3.0] - 2023-11-06

Features

• e0ca09b codegen: Implement the basics of non-minifying codegen (#987) (Boshen)
• 809f050 codegen: Move minifying printer to codegen crate (#985) (Boshen)
• ef8aaa7 minifier: Re-enable mangler (#972) (Boshen)
• 14e1dac minifier: Reenable minifier tests (#969) (Boshen)
• f0029d5 minifier: Reenable mangler (Boshen)
• 55b2f03 minifier: Partially re-enable minifier (#963) (Boshen)
• 5b1e1e5 parser: TypeScript 5.2 (#811) (Cameron)
• 2e2b758 playground: Add transform and minify (#993) (Boshen)
• ce79bc1 transform_conformance: Move Formatter to codegen (#986) (Boshen)
• 678db1d transformer: ES2020 Nullish Coalescing Operator (#1004) (Boshen)
• 0f72066 transformer: Finish 2016 exponentiation operator (#996) (Boshen)- 0e91044 Adjust the order of print semicolon (#1003) (Wenzhe Wang)

Refactor

• 4787220 ast: Clean up some methods (Boshen)
• 903854d ast: Fix the lifetime annotations around Vist and VisitMut (#973) (Boshen)
• db5417f clippy: Allow clippy::too_many_lines (Boshen)
• eaeb630 clippy: Allow struct_excessive_bools (Boshen)
• 801d78a minifier: Make the minifier api only accept an ast (#990) (Boshen)
• 110059f rust: Change RefCell.clone().into_inner() to RefCell.get() (Boshen)

[0.2.0] - 2023-09-14

Features

• 027a67d minifier: Constant addition expression folding (#882) (Don Isaac)
• e090b56 minifier: Initialize conditions folding (#658) (阿良仔)
• c5ff534 semantic: Add node_id to Reference (#689) (Makoto Tateno)

Refactor

• 3516759 ast: Use atom for Directive and Hashbang (#701) (Yunfei He)