Function originalPositionFor

packages/compiler/test/output/source_map_util.ts:18–29

(
  sourceMap: SourceMap,
  genPosition: {line: number; column: number},
)

}

export async function originalPositionFor(
  sourceMap: SourceMap,
  genPosition: {line: number; column: number},
): Promise<SourceLocation> {
  // Note: The `SourceMap` type from the compiler is different to `RawSourceMap`
  // from the `source-map` package, but the method we rely on works as expected.
  const smc = await new SourceMapConsumer(sourceMap as any);
  // Note: We don't return the original object as it also contains a `name` property
  // which is always null and we don't want to include that in our assertions...
  const {line, column, source} = smc.originalPositionFor(genPosition);
  return {line, column, source};
}

export function extractSourceMap(source: string): SourceMap | null {
  let idx = source.lastIndexOf('\n//#');