parseStackTraceFromFirefoxStack() — react Function Reference

Source Code

packages/react-devtools-shared/src/backend/utils/parseStackTrace.js lines 63–95

function parseStackTraceFromFirefoxStack(
  stack: string,
  skipFrames: number,
): ReactStackTrace {
  let idx = stack.indexOf('react_stack_bottom_frame');
  if (idx === -1) {
    idx = stack.indexOf('react-stack-bottom-frame');
  }
  if (idx !== -1) {
    idx = stack.lastIndexOf('\n', idx);
  }
  if (idx !== -1) {
    // Cut off everything after the bottom frame since it'll be internals.
    stack = stack.slice(0, idx);
  }
  const frames = stack.split('\n');
  const parsedFrames: ReactStackTrace = [];
  // We skip top frames here since they may or may not be parseable but we
  // want to skip the same number of frames regardless. I.e. we can't do it
  // in the caller.
  for (let i = skipFrames; i < frames.length; i++) {
    const parsed = firefoxFrameRegExp.exec(frames[i]);
    if (!parsed) {
      continue;
    }
    const name = parsed[1] || '';
    const filename = parsed[2] || '';
    const line = +parsed[3];
    const col = +parsed[4];
    parsedFrames.push([name, filename, line, col, 0, 0, false]);
  }
  return parsedFrames;
}