fix(compiler): correctly evaluate references to static functions (#13133)

modules/@angular/compiler-cli/integrationtest/src/module.ts

@@ -19,7 +19,7 @@ import {BasicComp} from './basic';
 import {ComponentUsingThirdParty} from './comp_using_3rdp';
 import {CompWithAnalyzeEntryComponentsProvider, CompWithEntryComponents} from './entry_components';
 import {CompConsumingEvents, CompUsingPipes, CompWithProviders, CompWithReferences, DirPublishingEvents, ModuleUsingCustomElements} from './features';
-import {CompUsingRootModuleDirectiveAndPipe, SomeDirectiveInRootModule, SomePipeInRootModule, SomeService, someLibModuleWithProviders} from './module_fixtures';
+import {CompUsingRootModuleDirectiveAndPipe, SomeDirectiveInRootModule, SomeLibModule, SomePipeInRootModule, SomeService} from './module_fixtures';
 import {CompWithNgContent, ProjectingComp} from './projection';
 import {CompForChildQuery, CompWithChildQuery, CompWithDirectiveChild, DirectiveForQuery} from './queries';
 
@@ -52,7 +52,7 @@ import {CompForChildQuery, CompWithChildQuery, CompWithDirectiveChild, Directive
     FormsModule,
     MdButtonModule,
     ModuleUsingCustomElements,
-    someLibModuleWithProviders(),
+    SomeLibModule.withProviders(),
     ThirdpartyModule,
   ],
   providers: [SomeService],

modules/@angular/compiler-cli/integrationtest/src/module_fixtures.ts

@@ -63,17 +63,13 @@ export function provideValueWithEntryComponents(value: any) {
   entryComponents: [CompUsingLibModuleDirectiveAndPipe],
 })
 export class SomeLibModule {
-}
-
-// TODO(tbosch): Make this a static method in `SomeLibModule` once
-// our static reflector supports it.
-// See https://github.com/angular/angular/issues/10266.
-export function someLibModuleWithProviders(): ModuleWithProviders {
-  return {
-    ngModule: SomeLibModule,
-    providers: [
-      ServiceUsingLibModule,
-      provideValueWithEntryComponents([{a: 'b', component: CompUsingLibModuleDirectiveAndPipe}])
-    ]
-  };
+  static withProviders() {
+    return {
+      ngModule: SomeLibModule,
+      providers: [
+        ServiceUsingLibModule, provideValueWithEntryComponents(
+                                   [{a: 'b', component: CompUsingLibModuleDirectiveAndPipe}])
+      ]
+    };
+  }
 }

modules/@angular/compiler/src/aot/static_reflector.ts

@@ -593,22 +593,26 @@ export class StaticReflector implements ReflectorReader {
                 if (indexTarget && isPrimitive(index)) return indexTarget[index];
                 return null;
               case 'select':
+                let selectContext = context;
                 let selectTarget = simplify(expression['expression']);
                 if (selectTarget instanceof StaticSymbol) {
                   // Access to a static instance variable
+                  const member: string = expression['member'];
+                  const members = selectTarget.members ?
+                      (selectTarget.members as string[]).concat(member) :
+                      [member];
                   const declarationValue = resolveReferenceValue(selectTarget);
+                  selectContext =
+                      self.getStaticSymbol(selectTarget.filePath, selectTarget.name, members);
                   if (declarationValue && declarationValue.statics) {
                     selectTarget = declarationValue.statics;
                   } else {
-                    const member: string = expression['member'];
-                    const members = selectTarget.members ?
-                        (selectTarget.members as string[]).concat(member) :
-                        [member];
-                    return self.getStaticSymbol(selectTarget.filePath, selectTarget.name, members);
+                    return selectContext;
                   }
                 }
-                const member = simplify(expression['member']);
-                if (selectTarget && isPrimitive(member)) return simplify(selectTarget[member]);
+                const member = simplifyInContext(selectContext, expression['member'], depth + 1);
+                if (selectTarget && isPrimitive(member))
+                  return simplifyInContext(selectContext, selectTarget[member], depth + 1);
                 return null;
               case 'reference':
                 if (!expression.module) {

modules/@angular/compiler/test/aot/static_reflector_spec.ts

@@ -450,6 +450,17 @@ describe('StaticReflector', () => {
        ]);
      });
 
+  it('should be able to get metadata for a class with nested method calls', () => {
+    const annotations = reflector.annotations(
+        reflector.getStaticSymbol('/tmp/src/static-method-call.ts', 'MyFactoryComponent'));
+    expect(annotations.length).toBe(1);
+    expect(annotations[0].providers).toEqual({
+      provide: 'c',
+      useFactory:
+          reflector.getStaticSymbol('/tmp/src/static-method.ts', 'AnotherModule', ['someFactory'])
+    });
+  });
+
   it('should be able to get the metadata for a class calling a method with default parameters',
      () => {
        const annotations = reflector.annotations(
@@ -1231,6 +1242,15 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
           static defaultsMethod(a, b = true, c = false) {
             return [a, b, c];
           }
+          static withFactory() {
+            return { provide: 'c', useFactory: AnotherModule.someFactory };
+          }
+        }
+
+        export class AnotherModule {
+          static someFactory() {
+            return 'e';
+          }
         }
       `,
       '/tmp/src/static-method-call.ts': `
@@ -1251,6 +1271,11 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
           providers: [MyModule.defaultsMethod('a')]
         })
         export class MyDefaultsComponent { }
+
+        @Component({
+          providers: MyModule.withFactory()
+        })
+        export class MyFactoryComponent { }
       `,
       '/tmp/src/static-field.ts': `
         import {Injectable} from '@angular/core';