Function transitiveScopesForNgModule

packages/core/src/render3/jit/module.ts:621–695

(moduleType: Type<T>)

 * @param moduleType module that transitive scope should be calculated for.
 */
export function transitiveScopesForNgModule<T>(moduleType: Type<T>): NgModuleTransitiveScopes {
  const def = getNgModuleDefOrThrow(moduleType);

  if (def.transitiveCompileScopes !== null) {
    return def.transitiveCompileScopes;
  }

  const scopes: NgModuleTransitiveScopes = {
    schemas: def.schemas || null,
    compilation: {
      directives: new Set<any>(),
      pipes: new Set<any>(),
    },
    exported: {
      directives: new Set<any>(),
      pipes: new Set<any>(),
    },
  };

  maybeUnwrapFn(def.imports).forEach(<I>(imported: Type<I>) => {
    // When this module imports another, the imported module's exported directives and pipes are
    // added to the compilation scope of this module.
    const importedScope = transitiveScopesFor(imported);
    importedScope.exported.directives.forEach((entry) => scopes.compilation.directives.add(entry));
    importedScope.exported.pipes.forEach((entry) => scopes.compilation.pipes.add(entry));
  });

  maybeUnwrapFn(def.declarations).forEach((declared) => {
    const declaredWithDefs = declared as Type<any> & {
      ɵpipe?: any;
    };

    if (getPipeDef(declaredWithDefs)) {
      scopes.compilation.pipes.add(declared);
    } else {
      // Either declared has a ɵcmp or ɵdir, or it's a component which hasn't
      // had its template compiled yet. In either case, it gets added to the compilation's
      // directives.
      scopes.compilation.directives.add(declared);
    }
  });

  maybeUnwrapFn(def.exports).forEach(<E>(exported: Type<E>) => {
    const exportedType = exported as Type<E> & {
      // Components, Directives, NgModules, and Pipes can all be exported.
      ɵcmp?: any;
      ɵdir?: any;
      ɵmod?: NgModuleDef<E>;
      ɵpipe?: any;
    };

    // Either the type is a module, a pipe, or a component/directive (which may not have a
    // ɵcmp as it might be compiled asynchronously).
    if (isNgModule(exportedType)) {
      // When this module exports another, the exported module's exported directives and pipes are
      // added to both the compilation and exported scopes of this module.
      const exportedScope = transitiveScopesFor(exportedType);
      exportedScope.exported.directives.forEach((entry) => {