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## [0.45.0] - 2025-01-11 - 7f69561 ast: [**BREAKING**] `oxc_ast` do not export `BigUint` (#8428) (overlookmotel) - d8b27af ast: [**BREAKING**] No unneccesary trailing underscores on `AstBuilder` method names (#8283) (overlookmotel) - 5106088 ast: [**BREAKING**] Remove `FromIn<Expression> for Statement` (#8280) (overlookmotel) ### Features - 6c7acac allocator: Implement `IntoIterator` for `&mut Vec` (#8389) (overlookmotel) - 3212bcd ast_tools: Ignore `raw` field of `NumericLiteral` and `StringLiteral` in `ContentEq` (#8417) (Boshen) - ad146bb codegen: Print real newline when `\n` is inside template literals (#8178) (Boshen) - 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) - 2da4365 parser: Missing initializer in destructuring declaration inside for loop head (#8222) (Boshen) - 55744fd semantic: Allow getting mutable reference to symbols table (#8189) (Max Stoumen) - 0592a8b transformer/class-properties: Transform private in expression (#8202) (Dunqing) - ad77ad5 transformer/class-properties: Transform static/instance accessor methods (#8132) (Dunqing) - e405f79 transformer/class-properties: Transform static private method invoking (#8117) (Dunqing) - 3303e99 transformer/class-properties: Insert statements after statement of class expression (#8116) (Dunqing) - 0cc71cf transformer/class-properties: Transform super expressions and identifiers that refers to class binding in private method (#8106) (Dunqing) - 58ed832 transformer/class-properties: Transform private field expression which invokes private method (#8102) (Dunqing) - f14567a transformer/class-properties: Transform callee which invokes private method (#8100) (Dunqing) - 13349ef transformer/class-properties: Transform private methods (#8099) (Dunqing) ### Bug Fixes - eb25bc0 allocator: Fix lifetimes on `IntoIterator` for `Vec` (#8388) (overlookmotel) - 97a7992 ast: Fix `ContentEq` and `ContentHash` impls for literal types (#8426) (overlookmotel) - a1752a0 codegen: Fix incorrect minified `return 1n` output (#8374) (Boshen) - 5a648bc codegen: Fix white space issue with do statements (#8348) (Boshen) - b6d16f4 codegen: Print parenthesis on negative bigint lit when neccessary (#8258) (camc314) - 8ed9766 codegen: Source map builder panicked because it attempted to subtract with overflow in `search_original_line_and_column` (#8185) (Dunqing) - ad61e70 codegen: Print if else without block with proper indentation (#8135) (Boshen) - 74572de ecmascript: Incorrect `to_int_32` value for Infinity (#8144) (翠 / green) - e1f8ea4 lexer: `Source` is not `Clone` (#8294) (overlookmotel) - 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) - 05be1fc minifier: Remove incorrect fold `Expression::AssignmentExpression` (#8211) (Boshen) - 56b7f13 minifier: Do not constant fold `0 instanceof F` (#8199) (Boshen) - 75d5f17 minifier: Minify string `PropertyKey` (#8177) (sapphi-red) - f88acb3 parser: Allow line breaks between `const` and `enum` (#8193) (branchseer) - 79a8fc6 semantic: Report error for super property appearing in function body (#8376) (Dunqing) - 79af100 semantic: Reference flags not correctly resolved when after an export stmt (#8134) (camc314) - 3eaff2a transformer: Ensure last expression statement in arrow function expression is wrapped in return (#8192) (Dunqing) - 3feac27 transformer/arrow-functions: Outer `super()` in nested class (#8382) (Dunqing) - 335065d transformer/arrow-functions: Do not transform super that inside nested non-async method (#8335) (Dunqing) - e4d66e4 transformer/arrow-functions: Store `super_methods` on a `Stack` to fix nested async methods (#8331) (Dunqing) - 775a289 transformer/arrow-functions: `_this = this` should be inserted after super call expression (#8024) (Dunqing) - ac72adb transformer/private-methods: Fix panic if instance private accessor in class (#8362) (overlookmotel) - f1f129b transformer/private-methods: Create brand binding `var` in hoist scope (#8361) (overlookmotel) - ab61425 transformer/private-methods: No temp var for class when unused private methods (#8360) (overlookmotel) - 9a03bd2 transformer/typescript: Remove type-only `import =` when `only_remove_type_imports` is true (#8275) (Dunqing) - 0df1866 transformer/typescript: Create `Reference` for `require` (#8355) (overlookmotel) - 78d7c97 transformer/typescript: Create `Reference` for `Infinity` (#8354) (overlookmotel) - 2e7207f transformer/typescript: Should strip import specifiers type with `only_remove_type_imports` (#8141) (underfin) ### Performance - 07edf74 transformer/arrow-function: Stop traversal at function as super() can't appear in a nested function (#8383) (Dunqing) - 62e3f7e transformer/arrow-functions: Reduce size of inlined visitor (#8322) (overlookmotel) - aebe0ea transformer/arrow-functions: Use `NonEmptyStack` instead of `Stack` (#8318) (overlookmotel) ### Documentation - c8e4843 ast: Fix doc comment (#8286) (overlookmotel) - e0a09ab data_structures: Improve docs for stack types (#8356) (overlookmotel) - aaa009d minifier: Clarify assumptions for compressor (#8404) (翠 / green) - 05cba5b transformer/private-methods: Amend comments (#8398) (overlookmotel) ### Refactor - b29655f ast: Rearrange impls for literal types in same order as they are defined (#8425) (overlookmotel) - 0db2a22 ast: `AstBuilder` enum builder methods use `alloc_*` methods (#8281) (overlookmotel) - aea9551 ast: Simplify `get_identifier_reference` of `TSType` and `TSTypeName` (#8273) (Dunqing) - 9c1844a data_structures: Remove `NonNull` shim (#8423) (overlookmotel) - 1835687 ecmascript: Remove unnecessary `use` statement (#8284) (overlookmotel) - 64bfdfe lexer: Tighten safety of lexer by always including lifetime on `SourcePosition` (#8293) (overlookmotel) - 0344e98 lexer: Make `handle_byte` a method of `Lexer` (#8291) (overlookmotel) - fabf116 lexer: Replace `#[allow]` with `#[expect]` (#8289) (overlookmotel) - 0462edb lexer: Rename function param (#8288) (overlookmotel) - 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) - 0903501 semantic: Check super usage based on scope (#8377) (Dunqing) - 109b8fc transformer: Elide lifetimes where possible (#8285) (overlookmotel) - fb389f7 transformer/arrow-function: Create a new ident instead of clone (#8338) (Dunqing) - dddbd29 transformer/arrow-functions: Reorder assertions (#8386) (overlookmotel) - ce6c445 transformer/arrow-functions: Add TODO comments (#8328) (overlookmotel) - 73d0025 transformer/arrow-functions: Reduce repeated code (#8323) (overlookmotel) - 3dd08e9 transformer/arrow-functions: Do not inline non-trivial visitor method (#8321) (overlookmotel) - ea9cefb transformer/arrow-functions: Reorder visitor methods (#8320) (overlookmotel) - 37199a4 transformer/arrow-functions: Rename lifetime (#8319) (overlookmotel) - 57e9dcf transformer/arrow-functions: Shorten `AstBuilder` call (#8317) (overlookmotel) - a5e3528 transformer/async-to-generator: Pass `TraverseCtx` to function not `AstBuilder` (#8279) (overlookmotel) - e7c89ba transformer/class-properties: TODO comments (#8392) (overlookmotel) - 6790d1d transformer/class-properties: Simplify determining if class is declaration (#8357) (overlookmotel) - c786a13 transformer/class-properties: Share `replace_class_name_with_temp_var` in class_properties (#8105) (Dunqing) - f54f48e transformer/class-properties: Remove all `*_if_super` methods in `static_block_and_prop_init` (#8104) (Dunqing) - d82fb52 transformer/class-properties: Move `supers` to `super_converter` (#8103) (Dunqing) - 3dad85e transformer/private-methods: Remove unnecessary clone (#8400) (overlookmotel) - aa5e65f transformer/private-methods: Simplify finding parent statement of class expression (#8364) (overlookmotel) - c786fd1 transformer/private-methods: TODO comments (#8363) (overlookmotel) ### Styling - 4d2888d lexer: Reorder imports (#8290) (overlookmotel) - e81f34f span: Reformat code (#8296) (overlookmotel) - 45e2402 transformer/private-methods: Move comments (#8399) (overlookmotel) - 0a1ffc0 transformer/private-methods: Rename var (#8397) (overlookmotel) ### Testing - 16dcdaf lexer: Assert size of `Token` in 32-bit WASM (#8292) (overlookmotel) - 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) Co-authored-by: Boshen <[email protected]>
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