1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_RUNTIME_FIELD_HELPER_H_ 18 #define ART_RUNTIME_FIELD_HELPER_H_ 19 20 #include "base/macros.h" 21 #include "handle.h" 22 #include "mirror/art_field.h" 23 24 namespace art { 25 26 class FieldHelper { 27 public: 28 explicit FieldHelper(Handle<mirror::ArtField> f) : field_(f) {} 29 30 void ChangeField(mirror::ArtField* new_f) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 31 DCHECK(new_f != nullptr); 32 field_.Assign(new_f); 33 } 34 35 mirror::ArtField* GetField() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 36 return field_.Get(); 37 } 38 39 mirror::Class* GetType(bool resolve = true) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 40 41 // The returned const char* is only guaranteed to be valid for the lifetime of the FieldHelper. 42 // If you need it longer, copy it into a std::string. 43 const char* GetDeclaringClassDescriptor() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 44 45 private: 46 Handle<mirror::ArtField> field_; 47 std::string declaring_class_descriptor_; 48 49 DISALLOW_COPY_AND_ASSIGN(FieldHelper); 50 }; 51 52 } // namespace art 53 54 #endif // ART_RUNTIME_FIELD_HELPER_H_ 55
