Function addDirectiveFactoryDef

packages/core/src/render3/jit/directive.ts:337–362

(type: Type<any>, metadata: Directive | Component)

}

function addDirectiveFactoryDef(type: Type<any>, metadata: Directive | Component) {
  let ngFactoryDef: any = null;

  Object.defineProperty(type, NG_FACTORY_DEF, {
    get: () => {
      if (ngFactoryDef === null) {
        const meta = getDirectiveMetadata(type, metadata);
        const compiler = getCompilerFacade({
          usage: JitCompilerUsage.Decorator,
          kind: 'directive',
          type,
        });
        ngFactoryDef = compiler.compileFactory(angularCoreEnv, `ng:///${type.name}/ɵfac.js`, {
          name: meta.metadata.name,
          type: meta.metadata.type,
          typeArgumentCount: 0,
          deps: reflectDependencies(type),
          target: compiler.FactoryTarget.Directive,
        });
      }
      return ngFactoryDef;
    },
    // Make the property configurable in dev mode to allow overriding in tests
    configurable: !!ngDevMode,
  });
}

export function extendsDirectlyFromObject(type: Type<any>): boolean {
  return Object.getPrototypeOf(type.prototype) === Object.prototype;