Function getSourceMapErrorSource

lib/internal/source_map/prepare_stack_trace.js:185–197

* Retrieve exact line in the original source code from the source map's `sources` list or disk. * @param {string} fileName - actual file name * @param {number} lineNumber - actual line number * @param {number} columnNumber - actual column number * @returns {string | undefined} - the source conte

(fileName, lineNumber, columnNumber)

 * @returns {string | undefined} - the source content or undefined if file not found
 */
function getSourceMapErrorSource(fileName, lineNumber, columnNumber) {
  const sm = findSourceMap(fileName);
  if (sm === undefined) {
    return;
  }
  const {
    originalLine,
    originalColumn,
    originalSource,
  } = sm.findEntry(lineNumber - 1, columnNumber);
  const errorSource = getErrorSource(sm, originalSource, originalLine, originalColumn);
  return errorSource;
}

setGetSourceMapErrorSource(getSourceMapErrorSource);