perf(transformer/class-properties): do not re-generate same method key #7915
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This was referenced Dec 15, 2024
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#7915) Previously where a class method had a computed key which does not require a temp var (e.g. `const methodName = 'x'; class C { [methodName]() {} }`), the `PropertyKey` was consumed and replaced with a newly-generated one which was identical to the original. Skip this pointless work.
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## [0.42.0] - 2024-12-18 - 84b75a0 semantic: [**BREAKING**] Remove `ScopeFlags::Modifiers` (#7935) (overlookmotel) - c071494 semantic: [**BREAKING**] Remove `SymbolTable::rename` method (#7868) (overlookmotel) ### Features - 8b7c5ae ast: Add `AstBuilder::atom_from_cow` (#7974) (overlookmotel) - 46e2e27 data_structures: Implement `Default` for `NonEmptyStack` (#7946) (overlookmotel) - db9e93b mangler: Mangle top level variables (#7907) (翠 / green) - 075bd16 minifier: Fold bitwise operation (#7908) (翠 / green) - c16a851 napi/transform: Add `jsx: 'preserve'` option (#7965) (Boshen) - 81eedb1 parser: 'readonly' type modifier is only permitted on array and tuple literal types. (#7880) (Boshen) - b9322c6 semantic: Re-export all flags and ID types (#7886) (overlookmotel) - c30a982 span: Add `impl From<ArenaString> for Atom` (#7973) (overlookmotel) - 02b653c transformer/class-properties: Do not create temp var for template literal computed key (#7919) (overlookmotel) - feac02e transformer/class-properties: Only rename symbols if necessary (#7896) (overlookmotel) - 6bc530d transformer/class-properties: Transform super call expression that is inside static prop initializer (#7831) (Dunqing) - 53e2bc0 traverse: Add `TraverseScoping::rename_symbol` method (#7871) (overlookmotel) ### Bug Fixes - 3659e6d cfg: Include export default code in CFG instructions (#7862) (Jan Olaf Martin) - 850dd43 codegen: Missing `,` when generating type parameters with jsx (#7929) (Dunqing) - 4799471 minfier: Bigint bitwise operation only works with bigint (#7937) (Boshen) - de8a86e minifier: Incorrect minification in `try_fold_left_child_op` (#7949) (翠 / green) - 9a30910 oxc_transformer: Inject_global_variables should considering string imported name (#7768) (IWANABETHATGUY) - 111dc52 parser: Include export token in spans of TSNamespaceExportDeclaration (#7963) (branchseer) - 14c51ff semantic: Remove inherting `ScopeFlags::Modifier` from parent scope (#7932) (Dunqing) - 596aead semantic: Reset references flags when resolved (#7923) (Dunqing) - 4924073 semantic: `ScopeTree::rename_binding` preserve order of bindings (#7870) (overlookmotel) - bb38065 transformer/class-properties: Do not transform `super.prop` in nested method within static prop initializer (#7978) (overlookmotel) - e76fbb0 transformer/class-properties: Fix symbol clashes in instance prop initializers (#7872) (overlookmotel) - c0576fa transformer/class-properties: Use UID for `args` in created class constructor (#7866) (overlookmotel) - d660d8d transformer/optional-chaining: Do not create unused reference when `noDocumentAll` assumption (#7847) (overlookmotel) - 4920c6a transformer/optional-chaining: Avoid creating a useless reference when `noDocumentAll` is true (#7832) (Dunqing) ### Performance - a5f04a7 ast: Faster `Comment::is_jsdoc` (#7905) (overlookmotel) - 4b24335 codegen: Improve printing of statement comments (#7857) (Boshen) - 71a40a2 codegen: Guard comment printing comments when there are no comments (#7856) (Boshen) - b31f123 transformer/class-properties: Do not re-generate same method key (#7915) (overlookmotel) - 8ca8fce transformer/class-properties: Reduce work updating scopes when transforming static prop initializers (#7904) (overlookmotel) - 80d0b3e transformer/class-properties: Fast path for instance prop initializer scope re-parenting (#7901) (overlookmotel) - 38aafa2 transformer/class-properties: Reduce size of `transform_call_expression_for_super_member_expr` (#7859) (overlookmotel) ### Documentation - e49de81 ast: Document `Expression::is_*` methods (#7853) (overlookmotel) - 10a86b9 transformer: Fix comments (#7925) (overlookmotel) - f4cb5d3 transformer: Clarify comment (#7918) (overlookmotel) - 41a1456 transformer/class-properties: Correct doc comments (#7966) (overlookmotel) - 18441af transformer/class-properties: Remove oudated todo for assignment expression (#7955) (Dunqing) - 1317c00 transformer/class-properties: Clarify doc comments (#7914) (overlookmotel) - 9989b58 transformer/class-properties: Re-order file list in doc comment (#7911) (overlookmotel) - 7390048 transformer/class-properties: Reformat doc comment (#7909) (overlookmotel) ### Refactor - beb982a ast: Use exhaustive match for `Argument` to `ArrayExpressionElement` conversion (#7848) (overlookmotel) - 3858221 global: Sort imports (#7883) (overlookmotel) - 1314c97 minifier: Expose dce as an API instead of an option (#7957) (Boshen) - 6551dfe semantic: Pass `&str` instead of `Cow` (#7972) (overlookmotel) - b8d2bd2 semantic: Move determining references flags for export specifier to `visit_export_named_declaration` (#7924) (Dunqing) - 98d7946 semantic: Import flags and ID types from `oxc_syntax` (#7887) (overlookmotel) - 1cf8f8f semantic: `SymbolTable::set_name` return old name (#7869) (overlookmotel) - 5d42df8 semantic: Use `Expression::is_super` (#7851) (overlookmotel) - 8cf9766 semantic, syntax, wasm: Remove `#![allow(non_snake_case)]` (#7863) (overlookmotel) - d59bbae transformer: Remove unneeded lint `#[allow]` (#7971) (overlookmotel) - 2c94236 transformer: Improve encapsulation of transforms (#7888) (overlookmotel) - 34091b2 transformer: Use `Expression::is_super` (#7852) (overlookmotel) - d4d7bc0 transformer/async-to-generator: Avoid allocating unnecessary `Atom`s (#7975) (overlookmotel) - 2e5ffd3 transformer/class-properties: Store `temp_var_is_created` on `ClassBindings` (#7981) (overlookmotel) - 27cc6da transformer/class-properties: Store `is_declaration` only on `ClassDetails` (#7980) (overlookmotel) - ee282f8 transformer/class-properties: Remove `move_expression`s (#7979) (overlookmotel) - 94b376a transformer/class-properties: Simplify logic for when to create temp binding (#7977) (overlookmotel) - ff9d1b3 transformer/class-properties: Comments about shorter output (#7976) (overlookmotel) - 6fc40f0 transformer/class-properties: Pass `BoundIdentifier`s by reference (#7968) (overlookmotel) - 69eeeea transformer/class-properties: Methods take `&self` where possible (#7967) (overlookmotel) - 98340bb transformer/class-properties: Use stack of `ClassDetails` (#7947) (overlookmotel) - 088dd48 transformer/class-properties: Shorten code (#7913) (overlookmotel) - 544ffbf transformer/class-properties: Split up code into multiple files (#7912) (overlookmotel) - dcaf674 transformer/class-properties: Rename file (#7910) (overlookmotel) - 6243980 transformer/class-properties: Instance prop inits visitor use `Visit` (#7867) (overlookmotel) - eb47d43 transformer/class-properties: Re-use existing `Vec` (#7854) (overlookmotel) - 1380b7b transformer/class-properties: Reduce visibility of method (#7858) (overlookmotel) - 0f5e078 transformer/class-properties: Rename `*_owner` to `owned_*` (#7855) (Dunqing) - 4ea90d4 transformer/react-refresh: Calculate signature key once (#7970) (Dunqing) - 15b9bff transformer/typescript: Reuse `Atom` (#7969) (overlookmotel) ### Styling - fb897f6 data_structures: Add line break (#7882) (overlookmotel) - 7fb9d47 rust: `cargo +nightly fmt` (#7877) (Boshen) ### Testing - 523d48c transformer: Move named test to exports folder (#7922) (Dunqing) - e766051 transformer: Skip test which uses filesystem under miri (#7874) (overlookmotel) - f39e65e transformer: Prevent lint error when running miri (#7873) (overlookmotel) Co-authored-by: Dunqing <[email protected]>
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Previously where a class method had a computed key which does not require a temp var (e.g.
const methodName = 'x'; class C { [methodName]() {} }), thePropertyKeywas consumed and replaced with a newly-generated one which was identical to the original. Skip this pointless work.