fix(bundling): disable swc input source map resolution#35010
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FrozenPandaz merged 1 commit intomasterfrom Mar 25, 2026
Merged
fix(bundling): disable swc input source map resolution#35010FrozenPandaz merged 1 commit intomasterfrom
FrozenPandaz merged 1 commit intomasterfrom
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SWC defaults inputSourceMap to true, causing it to look for .js.map files for TypeScript source inputs that don't have them. Rollup handles source maps via its own pipeline.
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## Current Behavior When using `compiler: 'swc'` with `useLegacyTypescriptPlugin: false` in rollup config, builds fail with errors like: ``` ERROR failed to read input source map: failed to find input source map file "index.js.map" ``` SWC defaults `inputSourceMap` to `true`, causing it to look for `.js.map` files for TypeScript source inputs that obviously don't have them. ## Expected Behavior Builds should succeed without source map resolution errors. Rollup handles source maps via its own output pipeline — the SWC transform step should not independently try to resolve input source maps. ## Related Issue(s) Fixes #32671 (cherry picked from commit 55f8888)
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Current Behavior
When using
compiler: 'swc'withuseLegacyTypescriptPlugin: falsein rollup config, builds fail with errors like:SWC defaults
inputSourceMaptotrue, causing it to look for.js.mapfiles for TypeScript source inputs that obviously don't have them.Expected Behavior
Builds should succeed without source map resolution errors. Rollup handles source maps via its own output pipeline — the SWC transform step should not independently try to resolve input source maps.
Related Issue(s)
Fixes #32671