refactor(syntax): give ScopeId a niche
#4468
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This was referenced Jul 25, 2024
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Make `ScopeId` a type with a niche, like `SymbolId` and `ReferenceId`. This makes `Option<ScopeId>` 4 bytes instead of 8, and shrinks various AST types e.g. `ArrowFunctionExpression` by 8 bytes, and halves the size of the `Vec` in `ScopeTree::parent_ids`. The snapshot change on `prefer-hooks-in-order` lint rule appears incidental - it doesn't alter what errors are reported, only the order they're reported in. This appears to be because it changes the order of keys in a hashmap keyed by `ScopeId` that [the rule uses](https://github.com/oxc-project/oxc/blob/a49f4915de38a57f9da4488b4d38b592ee15619f/crates/oxc_linter/src/rules/jest/prefer_hooks_in_order.rs#L143).
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## [0.22.1] - 2024-07-27 ### Features - 2477330 ast: Add `AstKind::TSExportAssignment` (#4501) (Dunqing) - aaee07e ast: Add `AstKind::AssignmentTargetPattern`, `AstKind::ArrayAssignmentTarget` and `AstKind::ObjectAssignmentTarget` (#4456) (Dunqing) - fd363d1 ast: Add AstKind::get_container_scope_id (#4450) (DonIsaac) - e2735ca span: Add `contains_inclusive` method (#4491) (DonIsaac) ### Bug Fixes - 368112c ast: Remove `#[visit(ignore)]` from `ExportDefaultDeclarationKind`'s `TSInterfaceDeclaration` (#4497) (Dunqing) - 36bb680 semantic: `TSExportAssignment` cannot reference type binding (#4502) (Dunqing) - cb2fa49 semantic: `typeof` operator cannot reference type-only import (#4500) (Dunqing) - ef0e953 semantic: Generic passed to typeof not counted as a reference (#4499) (Dunqing) - 40cafb8 semantic: Params in `export default (function() {})` flagged as `SymbolFlags::Export` (#4480) (Dunqing) - 2e01a45 semantic: Non-exported namespace member symbols flagged as exported (#4493) (Don Isaac) - e4ca06a semantic: Incorrect symbol’s scope_id after var hoisting (#4458) (Dunqing) - 77bd5f1 semantic: Use correct span for namespace symbols (#4448) (Don Isaac) - 5db7bed sourcemap: Fix pre-calculation of required segments for building JSON (#4490) (overlookmotel) - 1667491 syntax: Correct `is_reserved_keyword_or_global_object`'s incorrect function calling. (#4484) (Ethan Goh) - 82ba2a0 syntax: Fix unsound use of `NonZeroU32` (#4466) (overlookmotel) - c04b9aa transformer: Add to `SymbolTable::declarations` for all symbols (#4460) (overlookmotel) - ecdee88 transformer/typescript: Incorrect eliminate exports when the referenced symbol is both value and type (#4507) (Dunqing) ### Performance - 963a2d1 mangler: Reduce unnecessary allocation (#4498) (Dunqing) - 868fc87 parser: Optimize conditional advance on ASCII values (#4298) (lucab) - 24beaeb semantic: Give `AstNodeId` a niche (#4469) (overlookmotel) - 348c1ad semantic: Remove `span` field from `Reference` (#4464) (overlookmotel) - 6a9f4db semantic: Reduce storage size for symbol redeclarations (#4463) (overlookmotel) - 705e19f sourcemap: Reduce memory copies encoding JSON (#4489) (overlookmotel) - 4d10c6c sourcemap: Pre allocate String buf while encoding (#4476) (Brooooooklyn) ### Documentation - f5f0ba8 ast: Add doc comments to more AST nodes (#4413) (Don Isaac) - 871b3d6 semantic: Add doc comments for SymbolTester and SemanticTester (#4433) (DonIsaac) ### Refactor - 9c5d2f9 ast/builder: Use `Box::new_in` over `.into_in` (#4428) (overlookmotel) - ccb1835 semantic: Methods take `Span` as param, not `&Span` (#4470) (overlookmotel) - f17254a semantic: Populate `declarations` field in `SymbolTable::create_symbol` (#4461) (overlookmotel) - a49f491 semantic: Re-order `SymbolTable` fields (#4459) (overlookmotel) - 7cd53f3 semantic: Var hoisting (#4379) (Dunqing) - 4f5a7cb semantic: Mark SemanticTester and SymbolTester as must_use (#4430) (DonIsaac) - c958a55 sourcemap: `push_list` method for building JSON (#4486) (overlookmotel) - c99b3eb syntax: Give `ScopeId` a niche (#4468) (overlookmotel) - 96fc94f syntax: Use `NonMaxU32` for IDs (#4467) (overlookmotel) ### Testing - 4b274a8 semantic: Add more test cases for symbol references (#4429) (DonIsaac) Co-authored-by: Boshen <[email protected]>
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## [0.7.0] - 2024-08-05 - 85a7cea semantic: [**BREAKING**] Remove name from `reference` (#4329) (Dunqing) ### Features - aaee07e ast: Add `AstKind::AssignmentTargetPattern`, `AstKind::ArrayAssignmentTarget` and `AstKind::ObjectAssignmentTarget` (#4456) (Dunqing) - 9df7b56 jsx-a11y/no-autofocus: Implement fixer support (#4171) (Jelle van der Waa) - b87bf70 linter: Add fix capabilties to existing lint rules (#4560) (DonIsaac) - ddd8b27 linter: Support conditional fix capabilities (#4559) (DonIsaac) - b952942 linter: Add eslint/no-unused-vars (⭐ attempt 3.2) (#4445) (DonIsaac) - 6543958 linter: Add auto-fix metadata to RuleMeta (#4557) (Don Isaac) - 85e8418 linter: Add react/jsx-curly-brace-presence (#3949) (Don Isaac) - 4c4da56 linter: Add typescript-eslint/prefer-keyword-namespce (#4438) (Aza Walker) - d8c2a83 linter: Eslint-plugin-vitest/no-import-node-test (#4440) (cinchen) - e3b0c40 linter: Eslint-plugin-vitest/no-identical-title (#4422) (cinchen) - c936782 linter: Eslint-plugin-vitest/no-conditional-expect (#4425) (cinchen) - 27fdd69 linter: Eslint-plugin-vitest/no-commented-out-tests (#4424) (cinchen) - 51f5025 linter: Add fixer for unicorn/prefer-string-starts-ends-with (#4378) (DonIsaac) - 3c0c709 linter: Add typescript-eslint/no-extraneous-class (#4357) (Jaden Rodriguez) - 7afa1f0 linter: Support suggestions and dangerous fixes (#4223) (DonIsaac) - acc5729 linter: Eslint-plugin-vitest/expect-expect (#4299) (cinchen) - 2213f93 linter: Eslint-plugin-vitest/no-alias-methods (#4301) (cinchen) - c296bc3 linter/eslint: Implement func-names (#4618) (Alexander S.) - e116ae0 linter/eslint: Implement fixer for prefer-numeric-literals (#4591) (Jelle van der Waa) - eaf834f linter/eslint: Implement prefer-numeric-literals (#4109) (Jelle van der Waa) - db2fd70 linter/eslint-plugin-promise: Implement no-webpack-loader-syntax (#4331) (Jelle van der Waa) - 5f1e070 linter/eslint-plugin-unicorn: Add fixer for prefer-code-point (#4353) (Jelle van der Waa) - ed49e16 linter/eslint-plugin-unicorn: Implement fixer for prefer-dom-node-append (#4306) (Jelle van der Waa) - e2b15ac linter/react: Implement react-jsx-boolean-value (#4613) (Jelle van der Waa) - 68efcd4 linter/react-perf: Handle new objects and arrays in prop assignment patterns (#4396) (DonIsaac) ### Bug Fixes - 368112c ast: Remove `#[visit(ignore)]` from `ExportDefaultDeclarationKind`'s `TSInterfaceDeclaration` (#4497) (Dunqing) - d384f60 ci: Remove unused(?) .html file (#4545) (Yuji Sugiura) - 06aec77 linter: Invalid binary expression with overflow (#4647) (DonIsaac) - b2da22b linter: Invalid tags in rule docs (#4646) (DonIsaac) - 94440ad linter: Panic on invalid lang in `a11y/lang`. (#4630) (rzvxa) - e0b03f8 linter: Improve the boundary for eslint/for-direction (#4590) (heygsc) - 70b8cfa linter: Missing return in no-obj-calls recursion (#4594) (DonIsaac) - fe1356d linter: Change no-unused-vars to nursery (#4588) (DonIsaac) - 72337b1 linter: Change typescript-eslint/no-namespace to restriction (#4539) (Don Isaac) - 732f4e2 linter: Fix `oxlint` allocator cfg (#4527) (overlookmotel) - 289dc39 linter: Overflow in no-obj-calls (#4397) (DonIsaac) - a664715 linter/eslint: Fix invalid regexp in no_regex_spaces test (#4605) (Yuji Sugiura) - 74fa75a linter/eslint: Drop quotes around max-params lint warning (#4608) (Jelle van der Waa) - 9fcd9ae linter/eslint: Fix invalid regexp in no_control_regex test (#4544) (leaysgur) - ac08de8 linter/react_perf: Allow new objects, array, fns, etc in top scope (#4395) (DonIsaac) - 0fba738 npm: SyntaxError caused by optional chaining in low version node (#4650) (heygsc) - 73d2558 oxlint: Fix oxlint failed to build due to missing feature (Boshen) ### Performance - 6ff200d linter: Change react rules and utils to use `Cow` and `CompactStr` instead of `String` (#4603) (DonIsaac) - f259df0 linter: Make img-redundant-alt only build a regex once (#4604) (DonIsaac) - 7585e16 linter: Remove allocations for string comparisons (#4570) (DonIsaac) - b60bdf1 linter: `no_shadow_restricted_names` only look up name in hashmap once (#4472) (overlookmotel) - 81384f5 linter: Avoid unnecessary work in `nextjs:no_duplicate_head` rule (#4465) (overlookmotel) - f7da22d linter: Disable lint rules by file type (#4380) (DonIsaac) - 348c1ad semantic: Remove `span` field from `Reference` (#4464) (overlookmotel) - 6a9f4db semantic: Reduce storage size for symbol redeclarations (#4463) (overlookmotel)- a207923 Replace some CompactStr usages with Cows (#4377) (DonIsaac) ### Refactor - 7a75e0f linter: Use diagnostic codes in lint rules (#4349) (DonIsaac) - ccb1835 semantic: Methods take `Span` as param, not `&Span` (#4470) (overlookmotel) - 7cd53f3 semantic: Var hoisting (#4379) (Dunqing) - c99b3eb syntax: Give `ScopeId` a niche (#4468) (overlookmotel) Co-authored-by: Boshen <[email protected]>
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Make
ScopeIda type with a niche, likeSymbolIdandReferenceId. This makesOption<ScopeId>4 bytes instead of 8, and shrinks various AST types e.g.ArrowFunctionExpressionby 8 bytes, and halves the size of theVecinScopeTree::parent_ids.The snapshot change on
prefer-hooks-in-orderlint rule appears incidental - it doesn't alter what errors are reported, only the order they're reported in. This appears to be because it changes the order of keys in a hashmap keyed byScopeIdthat the rule uses.