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/*
* Copyright (C) 2017 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.
*/
#ifndef ART_RUNTIME_MIRROR_METHOD_HANDLES_LOOKUP_H_
#define ART_RUNTIME_MIRROR_METHOD_HANDLES_LOOKUP_H_
#include "base/utils.h"
#include "handle.h"
#include "obj_ptr.h"
#include "object.h"
namespace art {
struct MethodHandlesLookupOffsets;
class RootVisitor;
namespace mirror {
class MethodHandle;
class MethodType;
// C++ mirror of java.lang.invoke.MethodHandles.Lookup
class MANAGED MethodHandlesLookup : public Object {
public:
static ObjPtr<mirror::MethodHandlesLookup> Create(Thread* const self, Handle<Class> lookup_class)
REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
// Returns the result of java.lang.invoke.MethodHandles.lookup().
static ObjPtr<mirror::MethodHandlesLookup> GetDefault(Thread* const self)
REQUIRES_SHARED(Locks::mutator_lock_);
// Find constructor using java.lang.invoke.MethodHandles$Lookup.findConstructor().
ObjPtr<mirror::MethodHandle> FindConstructor(Thread* const self,
Handle<Class> klass,
Handle<MethodType> method_type)
REQUIRES_SHARED(Locks::mutator_lock_);
private:
static MemberOffset AllowedModesOffset() {
return MemberOffset(OFFSETOF_MEMBER(MethodHandlesLookup, allowed_modes_));
}
static MemberOffset LookupClassOffset() {
return MemberOffset(OFFSETOF_MEMBER(MethodHandlesLookup, lookup_class_));
}
HeapReference<mirror::Class> lookup_class_;
int32_t allowed_modes_;
friend struct art::MethodHandlesLookupOffsets; // for verifying offset information
DISALLOW_IMPLICIT_CONSTRUCTORS(MethodHandlesLookup);
};
} // namespace mirror
} // namespace art
#endif // ART_RUNTIME_MIRROR_METHOD_HANDLES_LOOKUP_H_
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