Function startTimerForRecompilation

packages/compiler-cli/src/perform_watch.ts:316–327

(changedPath: string)

  // operations (such as saving all modified files in an editor) a chance to complete before we kick
  // off a new compilation.
  function startTimerForRecompilation(changedPath: string) {
    if (timerHandleForRecompilation) {
      host.clearTimeout(timerHandleForRecompilation.timerHandle);
    } else {
      timerHandleForRecompilation = {
        modifiedResourceFiles: new Set<string>(),
        timerHandle: undefined,
      };
    }
    timerHandleForRecompilation.timerHandle = host.setTimeout(recompile, 250);
    timerHandleForRecompilation.modifiedResourceFiles.add(changedPath);
  }

  function recompile() {
    host.reportDiagnostics([