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Latest Results

fix(es/minifier): do not merge sequences across reads of globalThis properties

baltasarblanco:fix/sequences-global-this-property-read

43 minutes ago

fix(es/minifier): treat spread arguments of pure calls as side effects

baltasarblanco:fix/pure-call-spread-iteration-1744d5f-v2

5 hours ago

fix(es/typescript): analyze runtime containers before erasure Resolve enum values, alias dependencies and runtime requirements against shared declaration identities before syntax erasure. Track AST declaration order and execution regions, including eager decorator evaluation. Recognize immediately invoked functions through parentheses while retaining type wrappers as analysis boundaries. Evaluate initializers with TypeScript rules independently of optional member-read inlining. Substitute eligible enum reads while the original AST is intact, then pass immutable facts to lowering. Preserve reference operations and distinct emitted object identities, and accumulate namespace instantiation without repeated subtree scans.

fix/ts-namespace-enum-bindings

6 hours ago

fix(es/codegen): Escape inline script markers in regex literals (#12614)   **Description:**  With `inline_script` enabled, regex literals can emit HTML-sensitive markers. Minification can also combine `<` or `<<` with a regex to form `</script>`, which closes an inline script element. Escape closing script tags and HTML comment markers within regex patterns. Keep a space before a leading regex whose pattern starts with `script` after `<` or `<<`. Preserve existing escapes and leave regex output unchanged when `inline_script` is disabled. Add fixtures for readable and minified output, ASCII-only output, case-insensitive closing tags, character classes, existing escapes, and token boundaries. The fixtures check for HTML-sensitive markers and compare execution results in Node.js. Validation passed on `88040e10f64fd180e69d3508297443adf89fd7d1`: - `cargo fmt --all` - `cargo clippy --all --all-targets -- -D warnings` - `cargo test -p swc_ecma_codegen` (4,218 passed, 2 ignored) The new enabled fixtures failed before the fix. CI and review have not been verified. **Related issue (if exists):** Closes #12592

main

16 hours ago

fix(es/helpers): Convert Map and Set values to arrays (#12616)   **Description:**  The Map/Set fallback passed the type name to `Array.from`, producing the letters of "Map" or "Set". Pass the collection instead, matching Babel's helper, and regenerate the inline helper. Add an execution fixture for spread and array destructuring of empty and populated Map/Set collections when the global `Symbol` is unavailable. Include patch changesets for the affected Rust crates and `swc_core`. Validation (final source changes; the later commit adds only the changeset): - `cargo fmt --all` — passed. - `cargo clippy --all --all-targets -- -D warnings` — passed. - `cargo test -p swc_ecma_transforms_base -p swc_ecma_transforms_compat` — passed. - `pnpm --dir packages/helpers build` — passed. - Direct Node.js checks of ESM, generated CJS, and Babel helpers — passed for empty and populated Map/Set collections. The original helper's incorrect output was also reproduced. **Related issue (if exists):** Closes #12576

main

17 hours ago

chore: Add changeset

kdy1/babel-compatible-fix-12576

17 hours ago

refactor(es/hygiene): Track function name scopes without cloning identifiers

kdy1/fix-issue-12528

17 hours ago

refactor(es/codegen): Use question mark for an empty sequence

kdy1/fix-issue-12592

18 hours ago

Latest Branches

0%

fix(es/minifier): do not merge sequences across reads of globalThis properties#12619

10 days ago

52c8d55

baltasarblanco:fix/sequences-global-this-property-read

0%

fix(es/minifier): treat spread arguments of pure calls as side effects#12585

9 hours ago

39c4410

baltasarblanco:fix/pure-call-spread-iteration-1744d5f-v2

+4%

fix(es/typescript): Fix merged namespace bindings and enum evaluation#12455

11 days ago

23be610

fix/ts-namespace-enum-bindings

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