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_MIRROR_THROWABLE_H_ 18 #define ART_RUNTIME_MIRROR_THROWABLE_H_ 19 20 #include "gc_root.h" 21 #include "object.h" 22 23 namespace art { 24 25 class RootVisitor; 26 struct ThrowableOffsets; 27 28 namespace mirror { 29 30 class String; 31 32 // C++ mirror of java.lang.Throwable 33 class MANAGED Throwable : public Object { 34 public: 35 void SetDetailMessage(ObjPtr<String> new_detail_message) REQUIRES_SHARED(Locks::mutator_lock_); 36 37 String* GetDetailMessage() REQUIRES_SHARED(Locks::mutator_lock_); 38 39 std::string Dump() REQUIRES_SHARED(Locks::mutator_lock_); 40 41 // This is a runtime version of initCause, you shouldn't use it if initCause may have been 42 // overridden. Also it asserts rather than throwing exceptions. Currently this is only used 43 // in cases like the verifier where the checks cannot fail and initCause isn't overridden. 44 void SetCause(ObjPtr<Throwable> cause) REQUIRES_SHARED(Locks::mutator_lock_); 45 void SetStackState(ObjPtr<Object> state) REQUIRES_SHARED(Locks::mutator_lock_); 46 bool IsCheckedException() REQUIRES_SHARED(Locks::mutator_lock_); 47 48 static Class* GetJavaLangThrowable() REQUIRES_SHARED(Locks::mutator_lock_) { 49 DCHECK(!java_lang_Throwable_.IsNull()); 50 return java_lang_Throwable_.Read(); 51 } 52 53 int32_t GetStackDepth() REQUIRES_SHARED(Locks::mutator_lock_); 54 55 static void SetClass(ObjPtr<Class> java_lang_Throwable); 56 static void ResetClass(); 57 static void VisitRoots(RootVisitor* visitor) 58 REQUIRES_SHARED(Locks::mutator_lock_); 59 60 private: 61 Object* GetStackState() REQUIRES_SHARED(Locks::mutator_lock_); 62 Object* GetStackTrace() REQUIRES_SHARED(Locks::mutator_lock_); 63 64 // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". 65 HeapReference<Object> backtrace_; // Note this is Java volatile: 66 HeapReference<Throwable> cause_; 67 HeapReference<String> detail_message_; 68 HeapReference<Object> stack_trace_; 69 HeapReference<Object> suppressed_exceptions_; 70 71 static GcRoot<Class> java_lang_Throwable_; 72 73 friend struct art::ThrowableOffsets; // for verifying offset information 74 DISALLOW_IMPLICIT_CONSTRUCTORS(Throwable); 75 }; 76 77 } // namespace mirror 78 } // namespace art 79 80 #endif // ART_RUNTIME_MIRROR_THROWABLE_H_ 81
