| /* |
| * Copyright (C) 2016 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_TYPE_H_ |
| #define ART_RUNTIME_MIRROR_METHOD_TYPE_H_ |
| |
| #include "object_array.h" |
| #include "object.h" |
| #include "string.h" |
| |
| namespace art { |
| |
| struct MethodTypeOffsets; |
| |
| namespace mirror { |
| |
| // C++ mirror of java.lang.invoke.MethodType |
| class MANAGED MethodType : public Object { |
| public: |
| static ObjPtr<MethodType> Create(Thread* const self, |
| Handle<Class> return_type, |
| Handle<ObjectArray<Class>> param_types) |
| REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_); |
| |
| static ObjPtr<MethodType> CloneWithoutLeadingParameter(Thread* const self, |
| ObjPtr<MethodType> method_type) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Collects trailing parameter types into an array. Assumes caller |
| // has checked trailing arguments are all of the same type. |
| static ObjPtr<MethodType> CollectTrailingArguments(Thread* const self, |
| ObjPtr<MethodType> method_type, |
| ObjPtr<Class> collector_array_class, |
| int32_t start_index) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| ObjPtr<ObjectArray<Class>> GetPTypes() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| int GetNumberOfPTypes() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Number of virtual registers required to hold the parameters for |
| // this method type. |
| size_t NumberOfVRegs() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| ObjPtr<Class> GetRType() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Returns true iff. |this| is an exact match for method type |target|, i.e |
| // iff. they have the same return types and parameter types. |
| bool IsExactMatch(ObjPtr<MethodType> target) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Returns true iff. |this| can be converted to match |target| method type, i.e |
| // iff. they have convertible return types and parameter types. |
| bool IsConvertible(ObjPtr<MethodType> target) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Returns the pretty descriptor for this method type, suitable for display in |
| // exception messages and the like. |
| std::string PrettyDescriptor() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| private: |
| static MemberOffset FormOffset() { |
| return MemberOffset(OFFSETOF_MEMBER(MethodType, form_)); |
| } |
| |
| static MemberOffset MethodDescriptorOffset() { |
| return MemberOffset(OFFSETOF_MEMBER(MethodType, method_descriptor_)); |
| } |
| |
| static MemberOffset PTypesOffset() { |
| return MemberOffset(OFFSETOF_MEMBER(MethodType, p_types_)); |
| } |
| |
| static MemberOffset RTypeOffset() { |
| return MemberOffset(OFFSETOF_MEMBER(MethodType, r_type_)); |
| } |
| |
| static MemberOffset WrapAltOffset() { |
| return MemberOffset(OFFSETOF_MEMBER(MethodType, wrap_alt_)); |
| } |
| |
| HeapReference<Object> form_; // Unused in the runtime |
| HeapReference<String> method_descriptor_; // Unused in the runtime |
| HeapReference<ObjectArray<Class>> p_types_; |
| HeapReference<Class> r_type_; |
| HeapReference<Object> wrap_alt_; // Unused in the runtime |
| |
| friend struct art::MethodTypeOffsets; // for verifying offset information |
| DISALLOW_IMPLICIT_CONSTRUCTORS(MethodType); |
| }; |
| |
| } // namespace mirror |
| } // namespace art |
| |
| #endif // ART_RUNTIME_MIRROR_METHOD_TYPE_H_ |