Clean up Handle usage.
Prefer using ConstHandle instead of Handle as function arguments
since you can't assign new references to ConstHandle which helps
prevent bugs.
Changed NullHandle to be a ConstHandle so that you can never modify
it to be a non null reference.
Change-Id: I81cb979f6f8d5b49e5614966a2caf28c3701dd4f
diff --git a/runtime/class_linker.h b/runtime/class_linker.h
index edbf2b3..edcddce 100644
--- a/runtime/class_linker.h
+++ b/runtime/class_linker.h
@@ -46,6 +46,7 @@
class StackTraceElement;
} // namespace mirror
+template<class T> class ConstHandle;
class InternTable;
template<class T> class ObjectLock;
class ScopedObjectAccessAlreadyRunnable;
@@ -72,7 +73,7 @@
// Finds a class by its descriptor, loading it if necessary.
// If class_loader is null, searches boot_class_path_.
mirror::Class* FindClass(Thread* self, const char* descriptor,
- Handle<mirror::ClassLoader> class_loader)
+ ConstHandle<mirror::ClassLoader> class_loader)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Finds a class by its descriptor using the "system" class loader, ie by searching the
@@ -89,7 +90,7 @@
// Define a new a class based on a ClassDef from a DexFile
mirror::Class* DefineClass(const char* descriptor,
- Handle<mirror::ClassLoader> class_loader,
+ ConstHandle<mirror::ClassLoader> class_loader,
const DexFile& dex_file, const DexFile::ClassDef& dex_class_def)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
@@ -133,7 +134,7 @@
// Resolve a String with the given index from the DexFile, storing the
// result in the DexCache.
mirror::String* ResolveString(const DexFile& dex_file, uint32_t string_idx,
- Handle<mirror::DexCache> dex_cache)
+ ConstHandle<mirror::DexCache> dex_cache)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Resolve a Type with the given index from the DexFile, storing the
@@ -156,8 +157,8 @@
// type, since it may be referenced from but not contained within
// the given DexFile.
mirror::Class* ResolveType(const DexFile& dex_file, uint16_t type_idx,
- Handle<mirror::DexCache> dex_cache,
- Handle<mirror::ClassLoader> class_loader)
+ ConstHandle<mirror::DexCache> dex_cache,
+ ConstHandle<mirror::ClassLoader> class_loader)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Resolve a method with a given ID from the DexFile, storing the
@@ -167,9 +168,9 @@
// virtual method.
mirror::ArtMethod* ResolveMethod(const DexFile& dex_file,
uint32_t method_idx,
- Handle<mirror::DexCache> dex_cache,
- Handle<mirror::ClassLoader> class_loader,
- Handle<mirror::ArtMethod> referrer,
+ ConstHandle<mirror::DexCache> dex_cache,
+ ConstHandle<mirror::ClassLoader> class_loader,
+ ConstHandle<mirror::ArtMethod> referrer,
InvokeType type)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
@@ -193,8 +194,8 @@
// field.
mirror::ArtField* ResolveField(const DexFile& dex_file,
uint32_t field_idx,
- Handle<mirror::DexCache> dex_cache,
- Handle<mirror::ClassLoader> class_loader,
+ ConstHandle<mirror::DexCache> dex_cache,
+ ConstHandle<mirror::ClassLoader> class_loader,
bool is_static)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
@@ -203,8 +204,8 @@
// in ResolveType. No is_static argument is provided so that Java
// field resolution semantics are followed.
mirror::ArtField* ResolveFieldJLS(const DexFile& dex_file, uint32_t field_idx,
- Handle<mirror::DexCache> dex_cache,
- Handle<mirror::ClassLoader> class_loader)
+ ConstHandle<mirror::DexCache> dex_cache,
+ ConstHandle<mirror::ClassLoader> class_loader)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Get shorty from method index without resolution. Used to do handlerization.
@@ -214,7 +215,7 @@
// Returns true on success, false if there's an exception pending.
// can_run_clinit=false allows the compiler to attempt to init a class,
// given the restriction that no <clinit> execution is possible.
- bool EnsureInitialized(Handle<mirror::Class> c, bool can_init_fields, bool can_init_parents)
+ bool EnsureInitialized(ConstHandle<mirror::Class> c, bool can_init_fields, bool can_init_parents)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Initializes classes that have instances in the image but that have
@@ -224,7 +225,7 @@
void RegisterDexFile(const DexFile& dex_file)
LOCKS_EXCLUDED(dex_lock_)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- void RegisterDexFile(const DexFile& dex_file, Handle<mirror::DexCache> dex_cache)
+ void RegisterDexFile(const DexFile& dex_file, ConstHandle<mirror::DexCache> dex_cache)
LOCKS_EXCLUDED(dex_lock_)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
@@ -311,12 +312,12 @@
size_t length)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- void VerifyClass(Handle<mirror::Class> klass) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+ void VerifyClass(ConstHandle<mirror::Class> klass) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool VerifyClassUsingOatFile(const DexFile& dex_file, mirror::Class* klass,
mirror::Class::Status& oat_file_class_status)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void ResolveClassExceptionHandlerTypes(const DexFile& dex_file,
- Handle<mirror::Class> klass)
+ ConstHandle<mirror::Class> klass)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, mirror::ArtMethod* klass)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
@@ -429,16 +430,17 @@
mirror::Class* CreateArrayClass(Thread* self, const char* descriptor,
- Handle<mirror::ClassLoader> class_loader)
+ ConstHandle<mirror::ClassLoader> class_loader)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void AppendToBootClassPath(const DexFile& dex_file)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- void AppendToBootClassPath(const DexFile& dex_file, Handle<mirror::DexCache> dex_cache)
+ void AppendToBootClassPath(const DexFile& dex_file, ConstHandle<mirror::DexCache> dex_cache)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void ConstructFieldArray(const DexFile& dex_file, const DexFile::ClassDef& dex_class_def,
- mirror::Class* c, Handle<mirror::ObjectArray<mirror::ArtField>> field_array)
+ mirror::Class* c,
+ ConstHandle<mirror::ObjectArray<mirror::ArtField>> field_array)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Precomputes size needed for Class, in the case of a non-temporary class this size must be
@@ -448,23 +450,23 @@
void LoadClass(const DexFile& dex_file,
const DexFile::ClassDef& dex_class_def,
- Handle<mirror::Class> klass,
+ ConstHandle<mirror::Class> klass,
mirror::ClassLoader* class_loader)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void LoadClassMembers(const DexFile& dex_file,
const byte* class_data,
- Handle<mirror::Class> klass,
+ ConstHandle<mirror::Class> klass,
mirror::ClassLoader* class_loader,
const OatFile::OatClass* oat_class)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void LoadField(const DexFile& dex_file, const ClassDataItemIterator& it,
- Handle<mirror::Class> klass, Handle<mirror::ArtField> dst)
+ ConstHandle<mirror::Class> klass, ConstHandle<mirror::ArtField> dst)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
mirror::ArtMethod* LoadMethod(Thread* self, const DexFile& dex_file,
const ClassDataItemIterator& dex_method,
- Handle<mirror::Class> klass)
+ ConstHandle<mirror::Class> klass)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void FixupStaticTrampolines(mirror::Class* klass) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
@@ -474,23 +476,23 @@
OatFile::OatClass FindOatClass(const DexFile& dex_file, uint16_t class_def_idx, bool* found)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- void RegisterDexFileLocked(const DexFile& dex_file, Handle<mirror::DexCache> dex_cache)
+ void RegisterDexFileLocked(const DexFile& dex_file, ConstHandle<mirror::DexCache> dex_cache)
EXCLUSIVE_LOCKS_REQUIRED(dex_lock_)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool IsDexFileRegisteredLocked(const DexFile& dex_file)
SHARED_LOCKS_REQUIRED(dex_lock_, Locks::mutator_lock_);
- bool InitializeClass(Handle<mirror::Class> klass, bool can_run_clinit,
+ bool InitializeClass(ConstHandle<mirror::Class> klass, bool can_run_clinit,
bool can_init_parents)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool WaitForInitializeClass(Handle<mirror::Class> klass, Thread* self,
+ bool WaitForInitializeClass(ConstHandle<mirror::Class> klass, Thread* self,
ObjectLock<mirror::Class>& lock);
- bool ValidateSuperClassDescriptors(Handle<mirror::Class> klass)
+ bool ValidateSuperClassDescriptors(ConstHandle<mirror::Class> klass)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool IsSameDescriptorInDifferentClassContexts(Thread* self, const char* descriptor,
- Handle<mirror::ClassLoader> class_loader1,
- Handle<mirror::ClassLoader> class_loader2)
+ ConstHandle<mirror::ClassLoader> class_loader1,
+ ConstHandle<mirror::ClassLoader> class_loader2)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool IsSameMethodSignatureInDifferentClassContexts(Thread* self, mirror::ArtMethod* method,
@@ -498,43 +500,43 @@
mirror::Class* klass2)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool LinkClass(Thread* self, const char* descriptor, Handle<mirror::Class> klass,
- Handle<mirror::ObjectArray<mirror::Class>> interfaces,
+ bool LinkClass(Thread* self, const char* descriptor, ConstHandle<mirror::Class> klass,
+ ConstHandle<mirror::ObjectArray<mirror::Class>> interfaces,
mirror::Class** new_class)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool LinkSuperClass(Handle<mirror::Class> klass)
+ bool LinkSuperClass(ConstHandle<mirror::Class> klass)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool LoadSuperAndInterfaces(Handle<mirror::Class> klass, const DexFile& dex_file)
+ bool LoadSuperAndInterfaces(ConstHandle<mirror::Class> klass, const DexFile& dex_file)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool LinkMethods(Thread* self, Handle<mirror::Class> klass,
- Handle<mirror::ObjectArray<mirror::Class>> interfaces)
+ bool LinkMethods(Thread* self, ConstHandle<mirror::Class> klass,
+ ConstHandle<mirror::ObjectArray<mirror::Class>> interfaces)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool LinkVirtualMethods(Thread* self, Handle<mirror::Class> klass)
+ bool LinkVirtualMethods(Thread* self, ConstHandle<mirror::Class> klass)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool LinkInterfaceMethods(Handle<mirror::Class> klass,
- Handle<mirror::ObjectArray<mirror::Class>> interfaces)
+ bool LinkInterfaceMethods(ConstHandle<mirror::Class> klass,
+ ConstHandle<mirror::ObjectArray<mirror::Class>> interfaces)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool LinkStaticFields(Handle<mirror::Class> klass, size_t* class_size)
+ bool LinkStaticFields(ConstHandle<mirror::Class> klass, size_t* class_size)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool LinkInstanceFields(Handle<mirror::Class> klass)
+ bool LinkInstanceFields(ConstHandle<mirror::Class> klass)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool LinkFields(Handle<mirror::Class> klass, bool is_static, size_t* class_size)
+ bool LinkFields(ConstHandle<mirror::Class> klass, bool is_static, size_t* class_size)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- void LinkCode(Handle<mirror::ArtMethod> method, const OatFile::OatClass* oat_class,
+ void LinkCode(ConstHandle<mirror::ArtMethod> method, const OatFile::OatClass* oat_class,
const DexFile& dex_file, uint32_t dex_method_index, uint32_t method_index)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- void CreateReferenceInstanceOffsets(Handle<mirror::Class> klass)
+ void CreateReferenceInstanceOffsets(ConstHandle<mirror::Class> klass)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- void CreateReferenceStaticOffsets(Handle<mirror::Class> klass)
+ void CreateReferenceStaticOffsets(ConstHandle<mirror::Class> klass)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- void CreateReferenceOffsets(Handle<mirror::Class> klass, bool is_static,
+ void CreateReferenceOffsets(ConstHandle<mirror::Class> klass, bool is_static,
uint32_t reference_offsets)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
@@ -617,11 +619,11 @@
bool VerifyOatWithDexFile(const OatFile* oat_file, const char* dex_location,
std::string* error_msg);
- mirror::ArtMethod* CreateProxyConstructor(Thread* self, Handle<mirror::Class> klass,
+ mirror::ArtMethod* CreateProxyConstructor(Thread* self, ConstHandle<mirror::Class> klass,
mirror::Class* proxy_class)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- mirror::ArtMethod* CreateProxyMethod(Thread* self, Handle<mirror::Class> klass,
- Handle<mirror::ArtMethod> prototype)
+ mirror::ArtMethod* CreateProxyMethod(Thread* self, ConstHandle<mirror::Class> klass,
+ ConstHandle<mirror::ArtMethod> prototype)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
std::vector<const DexFile*> boot_class_path_;