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