Function addImport

packages/schematics/angular/service-worker/index.ts:162–171

(host: Tree, filePath: string, symbolName: string, moduleName: string)

export default serviceWorkerSchematic;

function addImport(host: Tree, filePath: string, symbolName: string, moduleName: string): void {
  const moduleSource = getTsSourceFile(host, filePath);
  const change = insertImport(moduleSource, filePath, symbolName, moduleName);

  if (change) {
    const recorder = host.beginUpdate(filePath);
    applyToUpdateRecorder(recorder, [change]);
    host.commitUpdate(recorder);
  }
}