Function debuglogImpl

lib/internal/util/debuglog.js:65–81

(enabled, set)

}

function debuglogImpl(enabled, set) {
  if (debugImpls[set] === undefined) {
    if (enabled) {
      const pid = process.pid;
      emitWarningIfNeeded(set);
      debugImpls[set] = function debug(...args) {
        const colors = lazyUtilColors().shouldColorize(process.stderr);
        const msg = formatWithOptions({ colors }, ...args);
        const coloredPID = inspect(pid, { colors });
        process.stderr.write(format('%s %s: %s\n', set, coloredPID, msg));
      };
    } else {
      debugImpls[set] = noop;
    }
  }
  return debugImpls[set];
}

// debuglogImpl depends on process.pid and process.env.NODE_DEBUG,
// so it needs to be called lazily in top scopes of internal modules