| /* |
| * 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 "gc_root.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 mirror::MethodHandlesLookup* Create(Thread* const self, |
| Handle<Class> lookup_class) |
| REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_); |
| |
| static mirror::Class* StaticClass() REQUIRES_SHARED(Locks::mutator_lock_) { |
| return static_class_.Read(); |
| } |
| |
| static void SetClass(Class* klass) REQUIRES_SHARED(Locks::mutator_lock_); |
| static void ResetClass() REQUIRES_SHARED(Locks::mutator_lock_); |
| static void VisitRoots(RootVisitor* visitor) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Returns the result of java.lang.invoke.MethodHandles.lookup(). |
| static mirror::MethodHandlesLookup* GetDefault(Thread* const self) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Find constructor using java.lang.invoke.MethodHandles$Lookup.findConstructor(). |
| 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_; |
| |
| static GcRoot<mirror::Class> static_class_; // java.lang.invoke.MethodHandles.Lookup.class |
| |
| friend struct art::MethodHandlesLookupOffsets; // for verifying offset information |
| DISALLOW_IMPLICIT_CONSTRUCTORS(MethodHandlesLookup); |
| }; |
| |
| } // namespace mirror |
| } // namespace art |
| |
| #endif // ART_RUNTIME_MIRROR_METHOD_HANDLES_LOOKUP_H_ |