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124 lines
5.1 KiB
124 lines
5.1 KiB
4 months ago
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/*
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* Copyright (C) 2018 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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#ifndef ART_RUNTIME_PROXY_TEST_H_
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#define ART_RUNTIME_PROXY_TEST_H_
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#include <jni.h>
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#include <vector>
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#include "art_method-inl.h"
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#include "class_linker-inl.h"
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#include "class_root-inl.h"
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#include "mirror/class-inl.h"
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#include "mirror/method.h"
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#include "obj_ptr-inl.h"
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namespace art {
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namespace proxy_test {
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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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inline ObjPtr<mirror::Class> GenerateProxyClass(ScopedObjectAccess& soa,
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jobject jclass_loader,
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ClassLinker* class_linker,
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const char* className,
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const std::vector<Handle<mirror::Class>>& interfaces)
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REQUIRES_SHARED(Locks::mutator_lock_) {
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StackHandleScope<1> hs(soa.Self());
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Handle<mirror::Class> javaLangObject = hs.NewHandle(GetClassRoot<mirror::Object>());
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CHECK(javaLangObject != nullptr);
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jclass javaLangClass = soa.AddLocalReference<jclass>(GetClassRoot<mirror::Class>());
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// Builds the interfaces array.
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jobjectArray proxyClassInterfaces =
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soa.Env()->NewObjectArray(interfaces.size(), javaLangClass, /* initialElement= */ 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].Get()));
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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 (Handle<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,
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soa.AddLocalReference<jclass>(GetClassRoot<mirror::Method>()),
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/* initialElement= */ 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.Get());
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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>(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.Get());
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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>(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.Get());
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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>(soa.Self(), method)));
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// Now adds all interfaces virtual methods.
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for (Handle<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>(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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ObjPtr<mirror::Class> proxyClass = class_linker->CreateProxyClass(
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soa,
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soa.Env()->NewStringUTF(className),
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proxyClassInterfaces,
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jclass_loader,
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proxyClassMethods,
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proxyClassThrows);
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soa.Self()->AssertNoPendingException();
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return proxyClass;
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}
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} // namespace proxy_test
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} // namespace art
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#endif // ART_RUNTIME_PROXY_TEST_H_
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