feat: exclude lines that are missing from source maps #244
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feat: exclude lines that are missing from source maps
@jridgewell/trace-mapping
to figure out which lines contain runtime code. If a line is not present in source maps, consider it as empty line. This will exclude Typescript typings, comments, empty lines and any other special syntax that transpiled languages exclude from source maps.Should this be considered as breaking change or be a configurable option?excludeEmptyLines
argument. No breaking changes.Examples:
Vitest
Jest
Playwright
c8, test code transpiled with tsc. It seems to leave comments in source maps - esbuild doesn't.
fix: ignore hint to exclude lines
/* v8 ignore ... */
should exclude the lines from coverage, not mark them as covered.