| // Copyright (c) 2012, 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. |
| |
| #include "vm/compiler/cha.h" |
| #include "platform/assert.h" |
| #include "vm/class_finalizer.h" |
| #include "vm/globals.h" |
| #include "vm/symbols.h" |
| #include "vm/unit_test.h" |
| |
| namespace dart { |
| |
| TEST_CASE(ClassHierarchyAnalysis) { |
| const char* kScriptChars = |
| "class A {" |
| " foo() { }" |
| " bar() { }" |
| "}\n" |
| "class B extends A {" |
| "}\n" |
| "class C extends B {" |
| " foo() { }" |
| "}\n" |
| "class D extends A {" |
| " foo() { }" |
| " bar() { }" |
| "}\n"; |
| |
| TestCase::LoadTestScript(kScriptChars, NULL); |
| |
| TransitionNativeToVM transition(thread); |
| EXPECT(ClassFinalizer::ProcessPendingClasses()); |
| const String& name = String::Handle(String::New(TestCase::url())); |
| const Library& lib = Library::Handle(Library::LookupLibrary(thread, name)); |
| EXPECT(!lib.IsNull()); |
| |
| const Class& class_a = |
| Class::Handle(lib.LookupClass(String::Handle(Symbols::New(thread, "A")))); |
| EXPECT(!class_a.IsNull()); |
| EXPECT(class_a.EnsureIsFinalized(thread) == Error::null()); |
| |
| const Class& class_b = |
| Class::Handle(lib.LookupClass(String::Handle(Symbols::New(thread, "B")))); |
| EXPECT(!class_b.IsNull()); |
| |
| const Class& class_c = |
| Class::Handle(lib.LookupClass(String::Handle(Symbols::New(thread, "C")))); |
| EXPECT(!class_c.IsNull()); |
| EXPECT(class_c.EnsureIsFinalized(thread) == Error::null()); |
| |
| const Class& class_d = |
| Class::Handle(lib.LookupClass(String::Handle(Symbols::New(thread, "D")))); |
| EXPECT(!class_d.IsNull()); |
| EXPECT(class_d.EnsureIsFinalized(thread) == Error::null()); |
| |
| const String& function_foo_name = String::Handle(String::New("foo")); |
| const String& function_bar_name = String::Handle(String::New("bar")); |
| |
| const Function& class_a_foo = |
| Function::Handle(class_a.LookupDynamicFunction(function_foo_name)); |
| EXPECT(!class_a_foo.IsNull()); |
| |
| const Function& class_a_bar = |
| Function::Handle(class_a.LookupDynamicFunction(function_bar_name)); |
| EXPECT(!class_a_bar.IsNull()); |
| |
| const Function& class_c_foo = |
| Function::Handle(class_c.LookupDynamicFunction(function_foo_name)); |
| EXPECT(!class_c_foo.IsNull()); |
| |
| const Function& class_d_foo = |
| Function::Handle(class_d.LookupDynamicFunction(function_foo_name)); |
| EXPECT(!class_d_foo.IsNull()); |
| |
| const Function& class_d_bar = |
| Function::Handle(class_d.LookupDynamicFunction(function_bar_name)); |
| EXPECT(!class_d_bar.IsNull()); |
| |
| CHA cha(thread); |
| |
| EXPECT(cha.HasSubclasses(kInstanceCid)); |
| EXPECT(!cha.HasSubclasses(kSmiCid)); |
| EXPECT(!cha.HasSubclasses(kNullCid)); |
| |
| EXPECT(CHA::HasSubclasses(class_a)); |
| EXPECT(CHA::HasSubclasses(class_b)); |
| EXPECT(!CHA::HasSubclasses(class_c)); |
| cha.AddToGuardedClasses(class_c, /*subclass_count=*/0); |
| EXPECT(!CHA::HasSubclasses(class_d)); |
| cha.AddToGuardedClasses(class_d, /*subclass_count=*/0); |
| |
| EXPECT(!cha.IsGuardedClass(class_a.id())); |
| EXPECT(!cha.IsGuardedClass(class_b.id())); |
| EXPECT(cha.IsGuardedClass(class_c.id())); |
| EXPECT(cha.IsGuardedClass(class_d.id())); |
| |
| const Class& closure_class = |
| Class::Handle(Isolate::Current()->object_store()->closure_class()); |
| EXPECT(!cha.HasSubclasses(closure_class.id())); |
| } |
| |
| } // namespace dart |