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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "method_helper-inl.h"
#include "class_linker.h"
#include "dex_file-inl.h"
#include "handle_scope-inl.h"
#include "mirror/art_method-inl.h"
#include "mirror/dex_cache.h"
#include "runtime.h"
namespace art {
template <template <class T> class HandleKind>
mirror::String* MethodHelperT<HandleKind>::GetNameAsString(Thread* self) {
const DexFile* dex_file = method_->GetDexFile();
mirror::ArtMethod* method = method_->GetInterfaceMethodIfProxy();
uint32_t dex_method_idx = method->GetDexMethodIndex();
const DexFile::MethodId& method_id = dex_file->GetMethodId(dex_method_idx);
StackHandleScope<1> hs(self);
Handle<mirror::DexCache> dex_cache(hs.NewHandle(method->GetDexCache()));
return Runtime::Current()->GetClassLinker()->ResolveString(*dex_file, method_id.name_idx_,
dex_cache);
}
template <template <class T> class HandleKind>
template <template <class T2> class HandleKind2>
bool MethodHelperT<HandleKind>::HasSameSignatureWithDifferentClassLoaders(
MethodHelperT<HandleKind2>* other) {
if (UNLIKELY(GetReturnType() != other->GetReturnType())) {
return false;
}
const DexFile::TypeList* types = method_->GetParameterTypeList();
const DexFile::TypeList* other_types = other->method_->GetParameterTypeList();
if (types == nullptr) {
return (other_types == nullptr) || (other_types->Size() == 0);
} else if (UNLIKELY(other_types == nullptr)) {
return types->Size() == 0;
}
uint32_t num_types = types->Size();
if (UNLIKELY(num_types != other_types->Size())) {
return false;
}
for (uint32_t i = 0; i < num_types; ++i) {
mirror::Class* param_type = GetClassFromTypeIdx(types->GetTypeItem(i).type_idx_);
mirror::Class* other_param_type =
other->GetClassFromTypeIdx(other_types->GetTypeItem(i).type_idx_);
if (UNLIKELY(param_type != other_param_type)) {
return false;
}
}
return true;
}
template <template <class T> class HandleKind>
uint32_t MethodHelperT<HandleKind>::FindDexMethodIndexInOtherDexFile(const DexFile& other_dexfile)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
mirror::ArtMethod* method = GetMethod();
const DexFile* dexfile = method->GetDexFile();
if (dexfile == &other_dexfile) {
return method->GetDexMethodIndex();
}
const DexFile::MethodId& mid = dexfile->GetMethodId(method->GetDexMethodIndex());
const char* mid_declaring_class_descriptor = dexfile->StringByTypeIdx(mid.class_idx_);
const DexFile::StringId* other_descriptor =
other_dexfile.FindStringId(mid_declaring_class_descriptor);
if (other_descriptor != nullptr) {
const DexFile::TypeId* other_type_id =
other_dexfile.FindTypeId(other_dexfile.GetIndexForStringId(*other_descriptor));
if (other_type_id != nullptr) {
const char* mid_name = dexfile->GetMethodName(mid);
const DexFile::StringId* other_name = other_dexfile.FindStringId(mid_name);
if (other_name != nullptr) {
uint16_t other_return_type_idx;
std::vector<uint16_t> other_param_type_idxs;
bool success = other_dexfile.CreateTypeList(
dexfile->GetMethodSignature(mid).ToString(), &other_return_type_idx,
&other_param_type_idxs);
if (success) {
const DexFile::ProtoId* other_sig =
other_dexfile.FindProtoId(other_return_type_idx, other_param_type_idxs);
if (other_sig != nullptr) {
const DexFile::MethodId* other_mid = other_dexfile.FindMethodId(
*other_type_id, *other_name, *other_sig);
if (other_mid != nullptr) {
return other_dexfile.GetIndexForMethodId(*other_mid);
}
}
}
}
}
}
return DexFile::kDexNoIndex;
}
template <template <typename> class HandleKind>
uint32_t MethodHelperT<HandleKind>::FindDexMethodIndexInOtherDexFile(
const DexFile& other_dexfile, uint32_t name_and_signature_idx)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
mirror::ArtMethod* method = GetMethod();
const DexFile* dexfile = method->GetDexFile();
const uint32_t dex_method_idx = method->GetDexMethodIndex();
const DexFile::MethodId& mid = dexfile->GetMethodId(dex_method_idx);
const DexFile::MethodId& name_and_sig_mid = other_dexfile.GetMethodId(name_and_signature_idx);
DCHECK_STREQ(dexfile->GetMethodName(mid), other_dexfile.GetMethodName(name_and_sig_mid));
DCHECK_EQ(dexfile->GetMethodSignature(mid), other_dexfile.GetMethodSignature(name_and_sig_mid));
if (dexfile == &other_dexfile) {
return dex_method_idx;
}
const char* mid_declaring_class_descriptor = dexfile->StringByTypeIdx(mid.class_idx_);
const DexFile::StringId* other_descriptor =
other_dexfile.FindStringId(mid_declaring_class_descriptor);
if (other_descriptor != nullptr) {
const DexFile::TypeId* other_type_id =
other_dexfile.FindTypeId(other_dexfile.GetIndexForStringId(*other_descriptor));
if (other_type_id != nullptr) {
const DexFile::MethodId* other_mid = other_dexfile.FindMethodId(
*other_type_id, other_dexfile.GetStringId(name_and_sig_mid.name_idx_),
other_dexfile.GetProtoId(name_and_sig_mid.proto_idx_));
if (other_mid != nullptr) {
return other_dexfile.GetIndexForMethodId(*other_mid);
}
}
}
return DexFile::kDexNoIndex;
}
// Instantiate methods.
template mirror::String* MethodHelperT<Handle>::GetNameAsString(Thread* self);
template mirror::String* MethodHelperT<MutableHandle>::GetNameAsString(Thread* self);
template
uint32_t MethodHelperT<Handle>::FindDexMethodIndexInOtherDexFile(const DexFile& other_dexfile);
template
uint32_t MethodHelperT<MutableHandle>::FindDexMethodIndexInOtherDexFile(
const DexFile& other_dexfile);
template
uint32_t MethodHelperT<Handle>::FindDexMethodIndexInOtherDexFile(const DexFile& other_dexfile,
uint32_t name_and_signature_idx);
template
uint32_t MethodHelperT<MutableHandle>::FindDexMethodIndexInOtherDexFile(
const DexFile& other_dexfile, uint32_t name_and_signature_idx);
template
bool MethodHelperT<Handle>::HasSameSignatureWithDifferentClassLoaders<Handle>(
MethodHelperT<Handle>* other);
template
bool MethodHelperT<Handle>::HasSameSignatureWithDifferentClassLoaders<MutableHandle>(
MethodHelperT<MutableHandle>* other);
template
bool MethodHelperT<MutableHandle>::HasSameSignatureWithDifferentClassLoaders<Handle>(
MethodHelperT<Handle>* other);
template
bool MethodHelperT<MutableHandle>::HasSameSignatureWithDifferentClassLoaders<MutableHandle>(
MethodHelperT<MutableHandle>* other);
} // namespace art
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