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Compile polyfill packages that are Node builtins as the builtins - #1458

Merged

ctate merged 55 commits into

mainfrom

opt/npm-polyfill-shims

Oct 20, 2026

Merged

Compile polyfill packages that are Node builtins as the builtins#1458
ctate merged 55 commits into
mainfrom
opt/npm-polyfill-shims

Commits on Oct 20, 2026
- Throw MODULE_NOT_FOUND with its code from statement-level requires
  
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- Convert string | URL unions to strings through the URL's href
  
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- Map @types/node 20's class-declared Timeout and Immediate handles
  
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- Map npm packages to built-in implementations and mark optional dependencies unloaded
  
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- Implement undici 5.x and 7.x as a built-in package
  
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- Document built-in packages and unloaded optional dependencies
  
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- Merge remote-tracking branch 'origin/main' into opt/native-undici
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- Merge remote-tracking branch 'origin/main' into opt/native-undici
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- Merge remote-tracking branch 'origin/opt/native-undici' into opt/npm-polyfill-shims
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- Compile polyfill packages that are Node builtins as the builtins
  
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- Fold global detection typeof tests and follow var builtin aliases
  
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- Merge remote-tracking branch 'origin/opt/npm-cjs-exports' into opt/npm-polyfill-shims
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- Format the alias tests and drop the merged duplicate moduleNs case
  
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- Record order baselines for the alias cases and corpus programs
  
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- Hoist lazily initialized ES module classes and follow on-demand workspace imports
  
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- Share the initializer and top-level binding shapes with the class hoisting
  
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- Merge branch 'opt/npm-cjs-exports' into opt/npm-polyfill-shims
  
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- Merge branch 'opt/npm-polyfill-shims' into opt/npm-esm-class-hoist
  
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- Format the npm case filter
  
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- Format the npm case filter
  
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- Merge branch 'opt/npm-cjs-exports' into opt/npm-polyfill-shims
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- Merge branch 'opt/npm-polyfill-shims' into opt/npm-esm-class-hoist
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- Implement fs-extra 8-11 as a built-in package
  
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- Merge branch 'opt/npm-esm-class-hoist' into opt/npm-fs-extra-shim
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- Hoist lazily defined classes over global constructors
  
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- Compile the fs-extra shim under @types/node as well
  
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- Hoist classes of an initializer declared last in a shared var statement
  
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- Find dynamic imports with a comment before their parenthesis
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- Hoist lazily initialized ES module classes; follow on-demand workspace imports (#1487)
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- Merge remote-tracking branch 'origin/opt/npm-polyfill-shims' into opt/npm-fs-extra-shim
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- Keep a hoisted class's next piece when the initializer ends with it
  
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- Point bundled copies of shimmed packages at the shim; guard every shim
  
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- Keep a hoisted class's next piece when the initializer ends with it
  
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- Merge branch 'opt/npm-polyfill-shims' into opt/npm-fs-extra-shim
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- Format the bundled-shim changes
  
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- Merge opt/npm-esm-wrappers
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- Keep builtin aliases off local bindings and unloaded packages, and validate Host values
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- Merge opt/npm-polyfill-shims and apply modes and inode checks in the fs-extra shim
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- Compile TypeScript enums in npm packages as the objects they build
  
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- Compile the packages a module loaded through import() requires
  
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- Split a chained Set call the self-hosted compiler cannot lower
  
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- Merge remote-tracking branch 'origin/opt/npm-esm-wrappers' into opt/npm-polyfill-shims
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- Merge remote-tracking branch 'origin/opt/npm-polyfill-shims' into opt/npm-fs-extra-shim
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- Merge remote-tracking branch 'origin/opt/npm-polyfill-shims' into opt/npm-dynamic-import-deps
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- Keep export on ES module enums the enum rewrite respells
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- Skip untaken global-detection arms, and fix the shim test checks
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- Compile the packages an import()-loaded module requires; compile TypeScript enums in packages (#1517)
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- Compile readable-stream 3.x as Node's stream module too
  
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- Merge remote-tracking branch 'origin/opt/npm-polyfill-shims' into opt/npm-fs-extra-shim
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- Keep regular destination files when fs-extra's copy meets a symlink source
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- Implement fs-extra as a built-in package; hoist lazily defined error classes (#1504)
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- Merge main
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- Merge main
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- Re-record the readable-stream order-parity baselines for main's module hint
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- Merge main
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Commits

Commits on Oct 20, 2026