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105 lines
4.1 KiB
105 lines
4.1 KiB
4 months ago
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/*
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* Copyright (C) 2012 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_DEX2OAT_DRIVER_COMPILER_DRIVER_INL_H_
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#define ART_DEX2OAT_DRIVER_COMPILER_DRIVER_INL_H_
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#include "compiler_driver.h"
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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 "driver/dex_compilation_unit.h"
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#include "handle_scope-inl.h"
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#include "mirror/class_loader.h"
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#include "mirror/dex_cache-inl.h"
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#include "runtime.h"
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#include "scoped_thread_state_change-inl.h"
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namespace art {
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inline ObjPtr<mirror::Class> CompilerDriver::ResolveClass(
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const ScopedObjectAccess& soa,
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Handle<mirror::DexCache> dex_cache,
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Handle<mirror::ClassLoader> class_loader,
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dex::TypeIndex cls_index,
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const DexCompilationUnit* mUnit) {
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DCHECK_EQ(dex_cache->GetDexFile(), mUnit->GetDexFile());
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DCHECK_EQ(class_loader.Get(), mUnit->GetClassLoader().Get());
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ObjPtr<mirror::Class> cls =
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mUnit->GetClassLinker()->ResolveType(cls_index, dex_cache, class_loader);
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DCHECK_EQ(cls == nullptr, soa.Self()->IsExceptionPending());
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if (UNLIKELY(cls == nullptr)) {
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// Clean up any exception left by type resolution.
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soa.Self()->ClearException();
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}
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return cls;
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}
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inline ObjPtr<mirror::Class> CompilerDriver::ResolveCompilingMethodsClass(
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const ScopedObjectAccess& soa,
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Handle<mirror::DexCache> dex_cache,
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Handle<mirror::ClassLoader> class_loader,
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const DexCompilationUnit* mUnit) {
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DCHECK_EQ(dex_cache->GetDexFile(), mUnit->GetDexFile());
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DCHECK_EQ(class_loader.Get(), mUnit->GetClassLoader().Get());
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const dex::MethodId& referrer_method_id =
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mUnit->GetDexFile()->GetMethodId(mUnit->GetDexMethodIndex());
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return ResolveClass(soa, dex_cache, class_loader, referrer_method_id.class_idx_, mUnit);
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}
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inline ArtField* CompilerDriver::ResolveField(const ScopedObjectAccess& soa,
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Handle<mirror::DexCache> dex_cache,
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Handle<mirror::ClassLoader> class_loader,
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uint32_t field_idx,
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bool is_static) {
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ArtField* resolved_field = Runtime::Current()->GetClassLinker()->ResolveField(
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field_idx, dex_cache, class_loader, is_static);
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DCHECK_EQ(resolved_field == nullptr, soa.Self()->IsExceptionPending());
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if (UNLIKELY(resolved_field == nullptr)) {
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// Clean up any exception left by type resolution.
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soa.Self()->ClearException();
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return nullptr;
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}
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if (UNLIKELY(resolved_field->IsStatic() != is_static)) {
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// ClassLinker can return a field of the wrong kind directly from the DexCache.
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// Silently return null on such incompatible class change.
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return nullptr;
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}
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return resolved_field;
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}
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inline std::pair<bool, bool> CompilerDriver::IsFastInstanceField(
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ObjPtr<mirror::DexCache> dex_cache,
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ObjPtr<mirror::Class> referrer_class,
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ArtField* resolved_field,
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uint16_t field_idx) {
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DCHECK(!resolved_field->IsStatic());
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ObjPtr<mirror::Class> fields_class = resolved_field->GetDeclaringClass();
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bool fast_get = referrer_class != nullptr &&
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referrer_class->CanAccessResolvedField(fields_class,
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resolved_field,
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dex_cache,
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field_idx);
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bool fast_put = fast_get && (!resolved_field->IsFinal() || fields_class == referrer_class);
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return std::make_pair(fast_get, fast_put);
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}
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} // namespace art
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#endif // ART_DEX2OAT_DRIVER_COMPILER_DRIVER_INL_H_
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