Function getCallsite

packages/jest-source-map/src/getCallsite.ts:50–68

(
  level: number,
  sourceMaps?: SourceMapRegistry | null,
)

};

export default function getCallsite(
  level: number,
  sourceMaps?: SourceMapRegistry | null,
): callsites.CallSite {
  const levelAfterThisCall = level + 1;
  const stack = callsites()[levelAfterThisCall];
  const sourceMapFileName = sourceMaps?.get(stack.getFileName() ?? '');

  if (sourceMapFileName != null && sourceMapFileName !== '') {
    try {
      const sourceMap = readFileSync(sourceMapFileName, 'utf8');
      addSourceMapConsumer(stack, new TraceMap(sourceMap));
    } catch {
      // ignore
    }
  }

  return stack;
}