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fix(@angular/build): attach location to Sass errors and guard stack parsing - #34423
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alan-agius4 wants to merge 3 commits into
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…arsing Populate the structured esbuild `location` on Sass `Exception` errors using a shared `spanToLocation` helper (matching Sass warnings) so that failed stylesheet files are tracked on error messages. Also add a bounds check on `index < segments.length` in `extractFilesFromStack` to avoid throwing a `TypeError` when a stack trace line does not contain a `line:col` segment.
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October 20, 2026 09:21
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This pull request refactors Sass error handling in the Angular build tool by extracting location mapping into a helper function and populating structured location details for compilation errors. It also adds bounds checks when parsing Sass stack traces and introduces comprehensive unit tests. Feedback on these changes highlights a bug where file paths containing spaces are incorrectly reconstructed without spaces, and suggests ensuring that the file path resolves to undefined instead of null to match esbuild's expected types.
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Summary
locationon SassExceptionerrors via a sharedspanToLocationhelper (matching Sass warnings) soBundlerContext.#addErrorsToWatchcan track failed.scssfiles even when#loadCacheis disabled.index < segments.length) inextractFilesFromStackand skip stack trace lines without aline:colsegment to preventTypeError: Cannot read properties of undefined (reading 'match').