Task: Build Type Aliases.

pkg/analyzer/test/src/task/dart_test.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.src.task.dart_test;
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/generated/ast.dart';
@@ skipping 20 matching lines @@
 import '../../reflective_tests.dart';
 import '../mock_sdk.dart';
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(BuildCompilationUnitElementTaskTest);
   runReflectiveTests(BuildDirectiveElementsTaskTest);
   runReflectiveTests(BuildEnumMemberElementsTaskTest);
   runReflectiveTests(BuildExportSourceClosureTaskTest);
   runReflectiveTests(BuildExportNamespaceTaskTest);
+  runReflectiveTests(BuildFunctionTypeAliasesTaskTest);
   runReflectiveTests(BuildLibraryElementTaskTest);
   runReflectiveTests(BuildPublicNamespaceTaskTest);
   runReflectiveTests(BuildTypeProviderTaskTest);
   runReflectiveTests(ParseDartTaskTest);
   runReflectiveTests(ScanDartTaskTest);
 }
 
 @reflectiveTest
 class BuildCompilationUnitElementTaskTest extends _AbstractDartTaskTest {
   test_buildInputs() {
@@ skipping 521 matching lines @@
     {
       _computeResult(sourceD, EXPORT_SOURCE_CLOSURE);
       expect(task, new isInstanceOf<BuildExportSourceClosureTask>());
       List<Source> closure = outputs[EXPORT_SOURCE_CLOSURE];
       expect(closure, unorderedEquals([sourceD]));
     }
   }
 }
 
 @reflectiveTest
+class BuildFunctionTypeAliasesTaskTest extends _AbstractDartTaskTest {
+  test_perform() {
+    Source source = _newSource('/test.dart', '''
+typedef int F(G g);
+typedef String G(int p);
+''');
+    LibraryUnitTarget target = new LibraryUnitTarget(source, source);
+    _computeResult(target, RESOLVED_UNIT5);
+    expect(task, new isInstanceOf<BuildFunctionTypeAliasesTask>());
+    // validate
+    CompilationUnit unit = outputs[RESOLVED_UNIT5];
+    FunctionTypeAlias nodeF = unit.declarations[0];
+    FunctionTypeAlias nodeG = unit.declarations[1];
+    {
+      FormalParameter parameter = nodeF.parameters.parameters[0];
+      DartType parameterType = parameter.element.type;
+      Element returnTypeElement = nodeF.returnType.type.element;
+      expect(returnTypeElement.displayName, 'int');
+      expect(parameterType.element, nodeG.element);
+    }
+    {
+      FormalParameter parameter = nodeG.parameters.parameters[0];
+      DartType parameterType = parameter.element.type;
+      expect(nodeG.returnType.type.element.displayName, 'String');
+      expect(parameterType.element.displayName, 'int');
+    }
+  }
+
+  test_perform_errors() {
+    Source source = _newSource('/test.dart', '''
+typedef int F(NoSuchType p);
+''');
+    LibraryUnitTarget target = new LibraryUnitTarget(source, source);
+    _computeResult(target, BUILD_FUNCTION_TYPE_ALIASES_ERRORS);
+    expect(task, new isInstanceOf<BuildFunctionTypeAliasesTask>());
+    // validate
+    _fillErrorListener(BUILD_FUNCTION_TYPE_ALIASES_ERRORS);
+    errorListener
+        .assertErrorsWithCodes(<ErrorCode>[StaticWarningCode.UNDEFINED_CLASS]);
+  }
+}
+
+@reflectiveTest
 class BuildLibraryElementTaskTest extends _AbstractDartTaskTest {
   Source librarySource;
   CompilationUnit libraryUnit;
   CompilationUnitElement libraryUnitElement;
   List<CompilationUnit> partUnits;
 
   LibraryElement libraryElement;
 
   test_constructor() {
     BuildLibraryElementTask task =
@@ skipping 481 matching lines @@
     taskManager.addTaskDescriptor(ScanDartTask.DESCRIPTOR);
     taskManager.addTaskDescriptor(ParseDartTask.DESCRIPTOR);
     taskManager.addTaskDescriptor(BuildCompilationUnitElementTask.DESCRIPTOR);
     taskManager.addTaskDescriptor(BuildLibraryElementTask.DESCRIPTOR);
     taskManager.addTaskDescriptor(BuildPublicNamespaceTask.DESCRIPTOR);
     taskManager.addTaskDescriptor(BuildDirectiveElementsTask.DESCRIPTOR);
     taskManager.addTaskDescriptor(BuildExportSourceClosureTask.DESCRIPTOR);
     taskManager.addTaskDescriptor(BuildExportNamespaceTask.DESCRIPTOR);
     taskManager.addTaskDescriptor(BuildTypeProviderTask.DESCRIPTOR);
     taskManager.addTaskDescriptor(BuildEnumMemberElementsTask.DESCRIPTOR);
+    taskManager.addTaskDescriptor(BuildFunctionTypeAliasesTask.DESCRIPTOR);
     // prepare AnalysisDriver
     analysisDriver = new AnalysisDriver(taskManager, context);
   }
 
   void _computeResult(AnalysisTarget target, ResultDescriptor result) {
     task = analysisDriver.computeResult(target, result);
     expect(task.caughtException, isNull);
     outputs = task.outputs;
   }
 
@@ skipping 39 matching lines @@
     return entryMap.putIfAbsent(target, () => new CacheEntry());
   }
 
   TimestampedData<String> getContents(Source source) => source.contents;
 
   noSuchMethod(Invocation invocation) {
     print('noSuchMethod: ${invocation.memberName}');
     return super.noSuchMethod(invocation);
   }
 }