258 lines
11 KiB
C++
258 lines
11 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <jni.h>
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#include <vector>
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#include "art_field-inl.h"
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#include "art_method-inl.h"
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#include "base/enums.h"
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#include "class_linker-inl.h"
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#include "common_compiler_test.h"
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#include "mirror/class-inl.h"
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#include "mirror/field-inl.h"
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#include "mirror/method.h"
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#include "scoped_thread_state_change-inl.h"
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namespace art {
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class ProxyTest : public CommonCompilerTest {
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public:
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// Generate a proxy class with the given name and interfaces. This is a simplification from what
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// libcore does to fit to our test needs. We do not check for duplicated interfaces or methods and
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// we do not declare exceptions.
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mirror::Class* GenerateProxyClass(ScopedObjectAccess& soa, jobject jclass_loader,
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const char* className,
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const std::vector<mirror::Class*>& interfaces)
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REQUIRES_SHARED(Locks::mutator_lock_) {
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mirror::Class* javaLangObject = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;");
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CHECK(javaLangObject != nullptr);
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jclass javaLangClass = soa.AddLocalReference<jclass>(mirror::Class::GetJavaLangClass());
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// Builds the interfaces array.
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jobjectArray proxyClassInterfaces = soa.Env()->NewObjectArray(interfaces.size(), javaLangClass,
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nullptr);
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soa.Self()->AssertNoPendingException();
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for (size_t i = 0; i < interfaces.size(); ++i) {
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soa.Env()->SetObjectArrayElement(proxyClassInterfaces, i,
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soa.AddLocalReference<jclass>(interfaces[i]));
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}
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// Builds the method array.
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jsize methods_count = 3; // Object.equals, Object.hashCode and Object.toString.
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for (mirror::Class* interface : interfaces) {
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methods_count += interface->NumVirtualMethods();
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}
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jobjectArray proxyClassMethods = soa.Env()->NewObjectArray(
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methods_count, soa.AddLocalReference<jclass>(mirror::Method::StaticClass()), nullptr);
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soa.Self()->AssertNoPendingException();
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jsize array_index = 0;
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// Fill the method array
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DCHECK_EQ(Runtime::Current()->GetClassLinker()->GetImagePointerSize(), kRuntimePointerSize);
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ArtMethod* method = javaLangObject->FindClassMethod(
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"equals", "(Ljava/lang/Object;)Z", kRuntimePointerSize);
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CHECK(method != nullptr);
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CHECK(!method->IsDirect());
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CHECK(method->GetDeclaringClass() == javaLangObject);
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DCHECK(!Runtime::Current()->IsActiveTransaction());
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soa.Env()->SetObjectArrayElement(
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proxyClassMethods, array_index++, soa.AddLocalReference<jobject>(
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mirror::Method::CreateFromArtMethod<kRuntimePointerSize, false>(soa.Self(), method)));
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method = javaLangObject->FindClassMethod("hashCode", "()I", kRuntimePointerSize);
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CHECK(method != nullptr);
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CHECK(!method->IsDirect());
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CHECK(method->GetDeclaringClass() == javaLangObject);
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soa.Env()->SetObjectArrayElement(
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proxyClassMethods, array_index++, soa.AddLocalReference<jobject>(
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mirror::Method::CreateFromArtMethod<kRuntimePointerSize, false>(soa.Self(), method)));
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method = javaLangObject->FindClassMethod(
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"toString", "()Ljava/lang/String;", kRuntimePointerSize);
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CHECK(method != nullptr);
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CHECK(!method->IsDirect());
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CHECK(method->GetDeclaringClass() == javaLangObject);
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soa.Env()->SetObjectArrayElement(
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proxyClassMethods, array_index++, soa.AddLocalReference<jobject>(
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mirror::Method::CreateFromArtMethod<kRuntimePointerSize, false>(soa.Self(), method)));
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// Now adds all interfaces virtual methods.
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for (mirror::Class* interface : interfaces) {
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for (auto& m : interface->GetDeclaredVirtualMethods(kRuntimePointerSize)) {
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soa.Env()->SetObjectArrayElement(
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proxyClassMethods, array_index++, soa.AddLocalReference<jobject>(
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mirror::Method::CreateFromArtMethod<kRuntimePointerSize, false>(soa.Self(), &m)));
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}
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}
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CHECK_EQ(array_index, methods_count);
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// Builds an empty exception array.
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jobjectArray proxyClassThrows = soa.Env()->NewObjectArray(0, javaLangClass, nullptr);
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soa.Self()->AssertNoPendingException();
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mirror::Class* proxyClass = class_linker_->CreateProxyClass(
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soa, soa.Env()->NewStringUTF(className), proxyClassInterfaces, jclass_loader,
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proxyClassMethods, proxyClassThrows);
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soa.Self()->AssertNoPendingException();
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return proxyClass;
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}
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};
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// Creates a proxy class and check ClassHelper works correctly.
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TEST_F(ProxyTest, ProxyClassHelper) {
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ScopedObjectAccess soa(Thread::Current());
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jobject jclass_loader = LoadDex("Interfaces");
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StackHandleScope<4> hs(soa.Self());
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Handle<mirror::ClassLoader> class_loader(
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hs.NewHandle(soa.Decode<mirror::ClassLoader>(jclass_loader)));
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Handle<mirror::Class> I(hs.NewHandle(
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class_linker_->FindClass(soa.Self(), "LInterfaces$I;", class_loader)));
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Handle<mirror::Class> J(hs.NewHandle(
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class_linker_->FindClass(soa.Self(), "LInterfaces$J;", class_loader)));
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ASSERT_TRUE(I != nullptr);
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ASSERT_TRUE(J != nullptr);
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std::vector<mirror::Class*> interfaces;
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interfaces.push_back(I.Get());
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interfaces.push_back(J.Get());
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Handle<mirror::Class> proxy_class(hs.NewHandle(
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GenerateProxyClass(soa, jclass_loader, "$Proxy1234", interfaces)));
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interfaces.clear(); // Don't least possibly stale objects in the array as good practice.
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ASSERT_TRUE(proxy_class != nullptr);
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ASSERT_TRUE(proxy_class->IsProxyClass());
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ASSERT_TRUE(proxy_class->IsInitialized());
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EXPECT_EQ(2U, proxy_class->NumDirectInterfaces()); // Interfaces$I and Interfaces$J.
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EXPECT_OBJ_PTR_EQ(I.Get(), mirror::Class::GetDirectInterface(soa.Self(), proxy_class.Get(), 0));
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EXPECT_OBJ_PTR_EQ(J.Get(), mirror::Class::GetDirectInterface(soa.Self(), proxy_class.Get(), 1));
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std::string temp;
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const char* proxy_class_descriptor = proxy_class->GetDescriptor(&temp);
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EXPECT_STREQ("L$Proxy1234;", proxy_class_descriptor);
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EXPECT_EQ(nullptr, proxy_class->GetSourceFile());
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}
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// Creates a proxy class and check FieldHelper works correctly.
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TEST_F(ProxyTest, ProxyFieldHelper) {
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ScopedObjectAccess soa(Thread::Current());
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jobject jclass_loader = LoadDex("Interfaces");
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StackHandleScope<9> hs(soa.Self());
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Handle<mirror::ClassLoader> class_loader(
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hs.NewHandle(soa.Decode<mirror::ClassLoader>(jclass_loader)));
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Handle<mirror::Class> I(hs.NewHandle(
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class_linker_->FindClass(soa.Self(), "LInterfaces$I;", class_loader)));
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Handle<mirror::Class> J(hs.NewHandle(
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class_linker_->FindClass(soa.Self(), "LInterfaces$J;", class_loader)));
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ASSERT_TRUE(I != nullptr);
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ASSERT_TRUE(J != nullptr);
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Handle<mirror::Class> proxyClass;
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{
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std::vector<mirror::Class*> interfaces;
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interfaces.push_back(I.Get());
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interfaces.push_back(J.Get());
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proxyClass = hs.NewHandle(GenerateProxyClass(soa, jclass_loader, "$Proxy1234", interfaces));
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}
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ASSERT_TRUE(proxyClass != nullptr);
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ASSERT_TRUE(proxyClass->IsProxyClass());
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ASSERT_TRUE(proxyClass->IsInitialized());
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EXPECT_TRUE(proxyClass->GetIFieldsPtr() == nullptr);
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LengthPrefixedArray<ArtField>* static_fields = proxyClass->GetSFieldsPtr();
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ASSERT_TRUE(static_fields != nullptr);
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ASSERT_EQ(2u, proxyClass->NumStaticFields());
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Handle<mirror::Class> interfacesFieldClass(
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hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Class;")));
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ASSERT_TRUE(interfacesFieldClass != nullptr);
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Handle<mirror::Class> throwsFieldClass(
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hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "[[Ljava/lang/Class;")));
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ASSERT_TRUE(throwsFieldClass != nullptr);
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// Test "Class[] interfaces" field.
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ArtField* field = &static_fields->At(0);
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EXPECT_STREQ("interfaces", field->GetName());
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EXPECT_STREQ("[Ljava/lang/Class;", field->GetTypeDescriptor());
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EXPECT_OBJ_PTR_EQ(interfacesFieldClass.Get(), field->GetType<true>());
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std::string temp;
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EXPECT_STREQ("L$Proxy1234;", field->GetDeclaringClass()->GetDescriptor(&temp));
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EXPECT_FALSE(field->IsPrimitiveType());
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// Test "Class[][] throws" field.
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field = &static_fields->At(1);
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EXPECT_STREQ("throws", field->GetName());
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EXPECT_STREQ("[[Ljava/lang/Class;", field->GetTypeDescriptor());
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EXPECT_OBJ_PTR_EQ(throwsFieldClass.Get(), field->GetType<true>());
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EXPECT_STREQ("L$Proxy1234;", field->GetDeclaringClass()->GetDescriptor(&temp));
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EXPECT_FALSE(field->IsPrimitiveType());
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}
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// Creates two proxy classes and check the art/mirror fields of their static fields.
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TEST_F(ProxyTest, CheckArtMirrorFieldsOfProxyStaticFields) {
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ScopedObjectAccess soa(Thread::Current());
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jobject jclass_loader = LoadDex("Interfaces");
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StackHandleScope<7> hs(soa.Self());
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Handle<mirror::Class> proxyClass0;
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Handle<mirror::Class> proxyClass1;
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{
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std::vector<mirror::Class*> interfaces;
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proxyClass0 = hs.NewHandle(GenerateProxyClass(soa, jclass_loader, "$Proxy0", interfaces));
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proxyClass1 = hs.NewHandle(GenerateProxyClass(soa, jclass_loader, "$Proxy1", interfaces));
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}
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ASSERT_TRUE(proxyClass0 != nullptr);
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ASSERT_TRUE(proxyClass0->IsProxyClass());
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ASSERT_TRUE(proxyClass0->IsInitialized());
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ASSERT_TRUE(proxyClass1 != nullptr);
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ASSERT_TRUE(proxyClass1->IsProxyClass());
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ASSERT_TRUE(proxyClass1->IsInitialized());
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LengthPrefixedArray<ArtField>* static_fields0 = proxyClass0->GetSFieldsPtr();
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ASSERT_TRUE(static_fields0 != nullptr);
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ASSERT_EQ(2u, static_fields0->size());
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LengthPrefixedArray<ArtField>* static_fields1 = proxyClass1->GetSFieldsPtr();
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ASSERT_TRUE(static_fields1 != nullptr);
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ASSERT_EQ(2u, static_fields1->size());
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EXPECT_OBJ_PTR_EQ(static_fields0->At(0).GetDeclaringClass(), proxyClass0.Get());
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EXPECT_OBJ_PTR_EQ(static_fields0->At(1).GetDeclaringClass(), proxyClass0.Get());
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EXPECT_OBJ_PTR_EQ(static_fields1->At(0).GetDeclaringClass(), proxyClass1.Get());
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EXPECT_OBJ_PTR_EQ(static_fields1->At(1).GetDeclaringClass(), proxyClass1.Get());
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ASSERT_EQ(Runtime::Current()->GetClassLinker()->GetImagePointerSize(), kRuntimePointerSize);
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ASSERT_FALSE(Runtime::Current()->IsActiveTransaction());
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Handle<mirror::Field> field00 =
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hs.NewHandle(mirror::Field::CreateFromArtField<kRuntimePointerSize, false>(
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soa.Self(), &static_fields0->At(0), true));
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Handle<mirror::Field> field01 =
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hs.NewHandle(mirror::Field::CreateFromArtField<kRuntimePointerSize, false>(
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soa.Self(), &static_fields0->At(1), true));
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Handle<mirror::Field> field10 =
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hs.NewHandle(mirror::Field::CreateFromArtField<kRuntimePointerSize, false>(
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soa.Self(), &static_fields1->At(0), true));
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Handle<mirror::Field> field11 =
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hs.NewHandle(mirror::Field::CreateFromArtField<kRuntimePointerSize, false>(
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soa.Self(), &static_fields1->At(1), true));
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EXPECT_EQ(field00->GetArtField(), &static_fields0->At(0));
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EXPECT_EQ(field01->GetArtField(), &static_fields0->At(1));
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EXPECT_EQ(field10->GetArtField(), &static_fields1->At(0));
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EXPECT_EQ(field11->GetArtField(), &static_fields1->At(1));
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}
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} // namespace art
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