perf: reorder hot-path boolean checks to short-circuit on cheap predicates first#9523
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…cates first (#9523) ## Summary Across AST scanning, side-effect detection, finalizer traversal, and linker binding passes, swap chained `&&`/`||` operands so the cheapest, most-selective check runs first. No behavior changes — only operand reordering. - **`impl_visit.rs`** (2 sites): atom equality (`id.name == "module"`, `static_property_name() == Some("exports")`) before `is_global_identifier_reference()` scope lookup for `module.exports` detection. - **`side_effect_detector/mod.rs::check_pure_cjs_export`**: `ident.name == "exports"` before `is_unresolved` scope lookup. - **`cjs_export_analyzer.rs::check_assignment_is_cjs_reexport`**: `arguments.len() == 1` before `resolve_identifier_reference`. - **`cjs_export_analyzer.rs::is_object_define_property_es_module`**: `Object`/`defineProperty`/`exports` atom checks before scope hashmap lookups. - **`ast_scanner/mod.rs::extract_constant_value_from_expr`**: switch `options.optimization.is_inline_const_enabled()` → cached `flat_options.inline_const_enabled()` (single bitflag check instead of pointer-chasing). - **`renamer.rs::add_symbol_in_root_scope`**: 1-byte ASCII check before symbol-flag lookup. - **`bind_imports_and_exports.rs`**: `exported_name == "default"` before `!came_from_commonjs` in the per-named-export filter loop. - **`wrapping.rs`**: reuse the already-cached `on_demand_wrapping` local instead of recomputing `is_on_demand_wrapping_enabled()` inside the loop. - **`impl_traverse_for_hmr_ast_finalizer.rs`**: gate the `this_expr_replace_map.contains_key()` hashmap lookup behind the module-wide `exports_kind.is_commonjs()` check. - **`expression_ext.rs`** (3 sites): atom equality on property name before recursive `is_import_meta*()` shape probe. 🤖 Generated with [Claude Code](https://claude.com/claude-code)
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…cates first (rolldown#9523) ## Summary Across AST scanning, side-effect detection, finalizer traversal, and linker binding passes, swap chained `&&`/`||` operands so the cheapest, most-selective check runs first. No behavior changes — only operand reordering. - **`impl_visit.rs`** (2 sites): atom equality (`id.name == "module"`, `static_property_name() == Some("exports")`) before `is_global_identifier_reference()` scope lookup for `module.exports` detection. - **`side_effect_detector/mod.rs::check_pure_cjs_export`**: `ident.name == "exports"` before `is_unresolved` scope lookup. - **`cjs_export_analyzer.rs::check_assignment_is_cjs_reexport`**: `arguments.len() == 1` before `resolve_identifier_reference`. - **`cjs_export_analyzer.rs::is_object_define_property_es_module`**: `Object`/`defineProperty`/`exports` atom checks before scope hashmap lookups. - **`ast_scanner/mod.rs::extract_constant_value_from_expr`**: switch `options.optimization.is_inline_const_enabled()` → cached `flat_options.inline_const_enabled()` (single bitflag check instead of pointer-chasing). - **`renamer.rs::add_symbol_in_root_scope`**: 1-byte ASCII check before symbol-flag lookup. - **`bind_imports_and_exports.rs`**: `exported_name == "default"` before `!came_from_commonjs` in the per-named-export filter loop. - **`wrapping.rs`**: reuse the already-cached `on_demand_wrapping` local instead of recomputing `is_on_demand_wrapping_enabled()` inside the loop. - **`impl_traverse_for_hmr_ast_finalizer.rs`**: gate the `this_expr_replace_map.contains_key()` hashmap lookup behind the module-wide `exports_kind.is_commonjs()` check. - **`expression_ext.rs`** (3 sites): atom equality on property name before recursive `is_import_meta*()` shape probe. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.7 (1M context) <[email protected]>
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shulaoda
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## [1.0.3] - 2026-05-27 ### 🚀 Features - transform: respect decorator strictNullChecks option (#9580) by @kylecannon - drop `defer` keyword (#9503) by @TheAlexLichter ### 🐛 Bug Fixes - ci: create target dir before cargo release-oxc update (#9584) by @shulaoda - ci: reorder prepare-release steps to avoid dirty git check failure (#9583) by @shulaoda - testing: canonicalize temp dir early and use platform-specific separator in test262 (#9582) by @shulaoda - testing: resolve symlinked temp dir in test262 snapshot normalization (#9581) by @shulaoda - testing: canonicalize temp dir path in test262 snapshot normalization (#9579) by @shulaoda - dev: `onOutput` called twice when initial build fails (#9552) by @hyf0 - dev: make `ensureCurrentBuildFinish` not returning error when engine closes (#9564) by @h-a-n-a - oxc-runtime: route require() to CJS helper variant (#9263) (#9526) by @IWANABETHATGUY - generator: use exporter chunk's export mode for CJS default re-exports (#9299) (#9529) by @IWANABETHATGUY - rolldown: always run reduced-atom static cycle check (#9441) (#9514) by @IWANABETHATGUY - apply transform.dropLabels before scanning (#9521) (#9522) by @IWANABETHATGUY - rolldown_watcher: take `rolldown` dep through the workspace (#9510) by @Boshen - cache: keep the scan-stage cache consistent when a build fails (#9495) by @h-a-n-a - skip JSON default-import namespace optimization for write targets (#9484) (#9489) by @IWANABETHATGUY - deps: skip pnpm frozen-lockfile on Netlify to dodge catalog mismatch bug (#9471) by @Boshen ### 🚜 Refactor - oxc-runtime: use Cow for helper path construction (#9538) by @IWANABETHATGUY - fold import defer phase drop into PreProcessor (#9524) by @IWANABETHATGUY - distinguish `map: null` vs `map: undefined` in transform hook output (#9497) by @sapphi-red ### 📚 Documentation - explain the policy for Rust crates (#9547) by @sapphi-red - cache: add design doc for cache (#9544) by @h-a-n-a - guide/troubleshooting: add TDZ error section (#9537) by @sapphi-red - dev-engine: add design doc for dev-engine (#9479) by @h-a-n-a - lazy-barrel: tweak some words (#9483) by @shulaoda - lazy-barrel: expand reasoning behind LARGE_BARREL_MODULES advice (#9477) by @shulaoda ### ⚡ Performance - generate: thread ast_table by value into codegen consumer (#9555) by @Boshen - finalizers: replace `_reExport` construction with a direct call to avoid calling `clone_in` (#9501) by @Dunqing - reorder hot-path boolean checks to short-circuit on cheap predicates first (#9523) by @Boshen ### 🧪 Testing - rolldown: regression fixture for #9401 (#9418) by @IWANABETHATGUY - failing test for #9441 (#9504) by @TheAlexLichter ### ⚙️ Miscellaneous Tasks - deps: upgrade oxc to 0.133.0 (#9563) by @Dunqing - deps: update crate-ci/typos action to v1.46.3 (#9576) by @renovate[bot] - deps: update mimalloc-safe to 0.1.62 (#9577) by @shulaoda - mimalloc-safe: update to a bug-fix branch for verification (#9569) by @shulaoda - deps: update test262 submodule for tests (#9551) by @rolldown-guard[bot] - point published crates' readme to root README.md (#9553) by @Boshen - replace actions-cool/issues-helper with gh CLI (#9543) by @Boshen - deps: update cargo-shear to 1.12.4 (#9541) by @Boshen - deps: update taiki-e/install-action action to v2.79.4 (#9535) by @renovate[bot] - deps: update github actions (#9532) by @renovate[bot] - deps: update rust crates (#9534) by @renovate[bot] - deps: update npm packages (#9533) by @renovate[bot] - gate experimental/testing-only items to silence dead_code in publish builds (#9517) by @Boshen - docs: deploy to Void (#9509) by @Boshen - release: set up cargo-release-oxc for publishing crates (#9476) by @Boshen - rolldown_plugin_lazy_compilation: add missing description (#9507) by @Boshen - mimalloc-safe: update to a bug-fix branch for verification (#9506) by @shulaoda - deps: update crate-ci/typos action to v1.46.2 (#9468) by @renovate[bot] ### ❤️ New Contributors * @kylecannon made their first contribution in [#9580](#9580)
shulaoda
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## [1.0.3] - 2026-05-27 ### 🚀 Features - transform: respect decorator strictNullChecks option (#9580) by @kylecannon - drop `defer` keyword (#9503) by @TheAlexLichter ### 🐛 Bug Fixes - ci: create target dir before cargo release-oxc update (#9584) by @shulaoda - ci: reorder prepare-release steps to avoid dirty git check failure (#9583) by @shulaoda - testing: canonicalize temp dir early and use platform-specific separator in test262 (#9582) by @shulaoda - testing: resolve symlinked temp dir in test262 snapshot normalization (#9581) by @shulaoda - testing: canonicalize temp dir path in test262 snapshot normalization (#9579) by @shulaoda - dev: `onOutput` called twice when initial build fails (#9552) by @hyf0 - dev: make `ensureCurrentBuildFinish` not returning error when engine closes (#9564) by @h-a-n-a - oxc-runtime: route require() to CJS helper variant (#9263) (#9526) by @IWANABETHATGUY - generator: use exporter chunk's export mode for CJS default re-exports (#9299) (#9529) by @IWANABETHATGUY - rolldown: always run reduced-atom static cycle check (#9441) (#9514) by @IWANABETHATGUY - apply transform.dropLabels before scanning (#9521) (#9522) by @IWANABETHATGUY - rolldown_watcher: take `rolldown` dep through the workspace (#9510) by @Boshen - cache: keep the scan-stage cache consistent when a build fails (#9495) by @h-a-n-a - skip JSON default-import namespace optimization for write targets (#9484) (#9489) by @IWANABETHATGUY - deps: skip pnpm frozen-lockfile on Netlify to dodge catalog mismatch bug (#9471) by @Boshen ### 🚜 Refactor - oxc-runtime: use Cow for helper path construction (#9538) by @IWANABETHATGUY - fold import defer phase drop into PreProcessor (#9524) by @IWANABETHATGUY - distinguish `map: null` vs `map: undefined` in transform hook output (#9497) by @sapphi-red ### 📚 Documentation - explain the policy for Rust crates (#9547) by @sapphi-red - cache: add design doc for cache (#9544) by @h-a-n-a - guide/troubleshooting: add TDZ error section (#9537) by @sapphi-red - dev-engine: add design doc for dev-engine (#9479) by @h-a-n-a - lazy-barrel: tweak some words (#9483) by @shulaoda - lazy-barrel: expand reasoning behind LARGE_BARREL_MODULES advice (#9477) by @shulaoda ### ⚡ Performance - generate: thread ast_table by value into codegen consumer (#9555) by @Boshen - finalizers: replace `_reExport` construction with a direct call to avoid calling `clone_in` (#9501) by @Dunqing - reorder hot-path boolean checks to short-circuit on cheap predicates first (#9523) by @Boshen ### 🧪 Testing - rolldown: regression fixture for #9401 (#9418) by @IWANABETHATGUY - failing test for #9441 (#9504) by @TheAlexLichter ### ⚙️ Miscellaneous Tasks - deps: upgrade oxc to 0.133.0 (#9563) by @Dunqing - deps: update crate-ci/typos action to v1.46.3 (#9576) by @renovate[bot] - deps: update mimalloc-safe to 0.1.62 (#9577) by @shulaoda - mimalloc-safe: update to a bug-fix branch for verification (#9569) by @shulaoda - deps: update test262 submodule for tests (#9551) by @rolldown-guard[bot] - point published crates' readme to root README.md (#9553) by @Boshen - replace actions-cool/issues-helper with gh CLI (#9543) by @Boshen - deps: update cargo-shear to 1.12.4 (#9541) by @Boshen - deps: update taiki-e/install-action action to v2.79.4 (#9535) by @renovate[bot] - deps: update github actions (#9532) by @renovate[bot] - deps: update rust crates (#9534) by @renovate[bot] - deps: update npm packages (#9533) by @renovate[bot] - gate experimental/testing-only items to silence dead_code in publish builds (#9517) by @Boshen - docs: deploy to Void (#9509) by @Boshen - release: set up cargo-release-oxc for publishing crates (#9476) by @Boshen - rolldown_plugin_lazy_compilation: add missing description (#9507) by @Boshen - mimalloc-safe: update to a bug-fix branch for verification (#9506) by @shulaoda - deps: update crate-ci/typos action to v1.46.2 (#9468) by @renovate[bot] ### ❤️ New Contributors * @kylecannon made their first contribution in [#9580](#9580)
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Summary
Across AST scanning, side-effect detection, finalizer traversal, and linker binding passes, swap chained
&&/||operands so the cheapest, most-selective check runs first. No behavior changes — only operand reordering.impl_visit.rs(2 sites): atom equality (id.name == "module",static_property_name() == Some("exports")) beforeis_global_identifier_reference()scope lookup formodule.exportsdetection.side_effect_detector/mod.rs::check_pure_cjs_export:ident.name == "exports"beforeis_unresolvedscope lookup.cjs_export_analyzer.rs::check_assignment_is_cjs_reexport:arguments.len() == 1beforeresolve_identifier_reference.cjs_export_analyzer.rs::is_object_define_property_es_module:Object/defineProperty/exportsatom checks before scope hashmap lookups.ast_scanner/mod.rs::extract_constant_value_from_expr: switchoptions.optimization.is_inline_const_enabled()→ cachedflat_options.inline_const_enabled()(single bitflag check instead of pointer-chasing).renamer.rs::add_symbol_in_root_scope: 1-byte ASCII check before symbol-flag lookup.bind_imports_and_exports.rs:exported_name == "default"before!came_from_commonjsin the per-named-export filter loop.wrapping.rs: reuse the already-cachedon_demand_wrappinglocal instead of recomputingis_on_demand_wrapping_enabled()inside the loop.impl_traverse_for_hmr_ast_finalizer.rs: gate thethis_expr_replace_map.contains_key()hashmap lookup behind the module-wideexports_kind.is_commonjs()check.expression_ext.rs(3 sites): atom equality on property name before recursiveis_import_meta*()shape probe.🤖 Generated with Claude Code