Function setScopeOnDeclaredComponents

packages/core/src/render3/jit/module.ts:502–522

* Some declared components may be compiled asynchronously, and thus may not have their * ɵcmp set yet. If this is the case, then a reference to the module is written into * the `ngSelectorScope` property of the declared type.

(moduleType: Type<any>, ngModule: NgModule)

 * the `ngSelectorScope` property of the declared type.
 */
function setScopeOnDeclaredComponents(moduleType: Type<any>, ngModule: NgModule) {
  const declarations: Type<any>[] = flatten(ngModule.declarations || EMPTY_ARRAY);

  const transitiveScopes = transitiveScopesFor(moduleType);

  declarations.forEach((declaration) => {
    declaration = resolveForwardRef(declaration);
    if (declaration.hasOwnProperty(NG_COMP_DEF)) {
      // A `ɵcmp` field exists - go ahead and patch the component directly.
      const component = declaration as Type<any> & {ɵcmp: ComponentDef<any>};
      const componentDef = getComponentDef(component)!;
      patchComponentDefWithScope(componentDef, transitiveScopes);
    } else if (
      !declaration.hasOwnProperty(NG_DIR_DEF) &&
      !declaration.hasOwnProperty(NG_PIPE_DEF)
    ) {
      // Set `ngSelectorScope` for future reference when the component compilation finishes.
      (declaration as Type<any> & {ngSelectorScope?: any}).ngSelectorScope = moduleType;
    }
  });
}

/**
 * Patch the definition of a component with directives and pipes from the compilation scope of