Task: Create Export Namespace.

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 19 matching lines @@
 import '../../generated/test_support.dart';
 import '../../reflective_tests.dart';
 import '../mock_sdk.dart';
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(BuildCompilationUnitElementTaskTest);
   runReflectiveTests(BuildDirectiveElementsTaskTest);
   runReflectiveTests(BuildEnumMemberElementsTaskTest);
   runReflectiveTests(BuildExportSourceClosureTaskTest);
+  runReflectiveTests(BuildExportNamespaceTaskTest);
   runReflectiveTests(BuildLibraryElementTaskTest);
   runReflectiveTests(BuildPublicNamespaceTaskTest);
   runReflectiveTests(BuildTypeProviderTaskTest);
   runReflectiveTests(ParseDartTaskTest);
   runReflectiveTests(ScanDartTaskTest);
 }
 
 @reflectiveTest
 class BuildCompilationUnitElementTaskTest extends _AbstractDartTaskTest {
   test_buildInputs() {
@@ skipping 381 matching lines @@
 
   static void _assertGetter(FieldElement field) {
     PropertyAccessorElement getter = field.getter;
     expect(getter, isNotNull);
     expect(getter.variable, same(field));
     expect(getter.type, isNotNull);
   }
 }
 
 @reflectiveTest
+class BuildExportNamespaceTaskTest extends _AbstractDartTaskTest {
+  test_perform_entyrPoint() {
+    Source sourceA = _newSource('/a.dart', '''
+library lib_a;
+export 'b.dart';
+''');
+    Source sourceB = _newSource('/b.dart', '''
+library lib_b;
+main() {}
+''');
+    _computeResult(sourceA, LIBRARY_ELEMENT3);
+    expect(task, new isInstanceOf<BuildExportNamespaceTask>());
+    // validate
+    {
+      LibraryElement library = outputs[LIBRARY_ELEMENT3];
+      FunctionElement entryPoint = library.entryPoint;
+      expect(entryPoint, isNotNull);
+      expect(entryPoint.source, sourceB);
+    }
+  }
+
+  test_perform_hideCombinator() {
+    Source sourceA = _newSource('/a.dart', '''
+library lib_a;
+export 'b.dart' hide B1;
+class A1 {}
+class A2 {}
+class _A3 {}
+''');
+    _newSource('/b.dart', '''
+library lib_b;
+class B1 {}
+class B2 {}
+class B3 {}
+class _B4 {}
+''');
+    _newSource('/c.dart', '''
+library lib_c;
+class C1 {}
+class C2 {}
+class C3 {}
+''');
+    _computeResult(sourceA, EXPORT_NAMESPACE);
+    expect(task, new isInstanceOf<BuildExportNamespaceTask>());
+    // validate
+    {
+      Namespace namespace = outputs[EXPORT_NAMESPACE];
+      Iterable<String> definedKeys = namespace.definedNames.keys;
+      expect(definedKeys, unorderedEquals(['A1', 'A2', 'B2', 'B3']));
+    }
+  }
+
+  test_perform_showCombinator() {
+    Source sourceA = _newSource('/a.dart', '''
+library lib_a;
+export 'b.dart' show B1;
+class A1 {}
+class A2 {}
+class _A3 {}
+''');
+    _newSource('/b.dart', '''
+library lib_b;
+class B1 {}
+class B2 {}
+class _B3 {}
+''');
+    _computeResult(sourceA, EXPORT_NAMESPACE);
+    expect(task, new isInstanceOf<BuildExportNamespaceTask>());
+    // validate
+    {
+      Namespace namespace = outputs[EXPORT_NAMESPACE];
+      Iterable<String> definedKeys = namespace.definedNames.keys;
+      expect(definedKeys, unorderedEquals(['A1', 'A2', 'B1']));
+    }
+  }
+
+  test_perform_showCombinator_setter() {
+    Source sourceA = _newSource('/a.dart', '''
+library lib_a;
+export 'b.dart' show topLevelB;
+class A {}
+''');
+    _newSource('/b.dart', '''
+library lib_b;
+int topLevelB;
+''');
+    _computeResult(sourceA, EXPORT_NAMESPACE);
+    expect(task, new isInstanceOf<BuildExportNamespaceTask>());
+    // validate
+    {
+      Namespace namespace = outputs[EXPORT_NAMESPACE];
+      Iterable<String> definedKeys = namespace.definedNames.keys;
+      expect(definedKeys, unorderedEquals(['A', 'topLevelB', 'topLevelB=']));
+    }
+  }
+}
+
+@reflectiveTest
 class BuildExportSourceClosureTaskTest extends _AbstractDartTaskTest {
   test_perform() {
     Source sourceA = _newSource('/a.dart', '''
 library lib_a;
 export 'b.dart';
 ''');
     Source sourceB = _newSource('/b.dart', '''
 library lib_b;
 export 'b.dart';
 ''');
@@ skipping 520 matching lines @@
     ]);
     // prepare TaskManager
     taskManager.addTaskDescriptor(GetContentTask.DESCRIPTOR);
     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);
     // 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 36 matching lines @@
 
   bool exists(Source source) => source.exists();
 
   @override
   CacheEntry getCacheEntry(AnalysisTarget target) {
     return entryMap.putIfAbsent(target, () => new CacheEntry());
   }
 
   TimestampedData<String> getContents(Source source) => source.contents;
 
-  @override
-  Namespace getPublicNamespace(LibraryElement library) {
-    // TODO(scheglov) Should be be replaced with an explicit input?
-    // TODO(scheglov) Based on... LibraryElement's closure?
-    var cacheEntry = getCacheEntry(library.source);
-    return cacheEntry.getValue(PUBLIC_NAMESPACE);
-  }
-
   noSuchMethod(Invocation invocation) {
     print('noSuchMethod: ${invocation.memberName}');
     return super.noSuchMethod(invocation);
   }
 }