| // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include "include/dart_api.h" |
| #include "include/dart_mirrors_api.h" |
| #include "include/dart_native_api.h" |
| |
| #include "platform/assert.h" |
| #include "vm/class_finalizer.h" |
| #include "vm/compiler.h" |
| #include "vm/dart.h" |
| #include "vm/dart_api_impl.h" |
| #include "vm/dart_api_message.h" |
| #include "vm/dart_api_state.h" |
| #include "vm/dart_entry.h" |
| #include "vm/debugger.h" |
| #include "vm/debuginfo.h" |
| #include "vm/exceptions.h" |
| #include "vm/flags.h" |
| #include "vm/growable_array.h" |
| #include "vm/lockers.h" |
| #include "vm/message.h" |
| #include "vm/message_handler.h" |
| #include "vm/native_entry.h" |
| #include "vm/object.h" |
| #include "vm/object_store.h" |
| #include "vm/os_thread.h" |
| #include "vm/port.h" |
| #include "vm/profiler.h" |
| #include "vm/resolver.h" |
| #include "vm/reusable_handles.h" |
| #include "vm/service.h" |
| #include "vm/stack_frame.h" |
| #include "vm/symbols.h" |
| #include "vm/tags.h" |
| #include "vm/timer.h" |
| #include "vm/unicode.h" |
| #include "vm/verifier.h" |
| #include "vm/version.h" |
| |
| namespace dart { |
| |
| DECLARE_FLAG(bool, print_class_table); |
| DECLARE_FLAG(bool, verify_handles); |
| DEFINE_FLAG(bool, check_function_fingerprints, false, |
| "Check function fingerprints"); |
| DEFINE_FLAG(bool, trace_api, false, |
| "Trace invocation of API calls (debug mode only)"); |
| DEFINE_FLAG(bool, verify_acquired_data, false, |
| "Verify correct API acquire/release of typed data."); |
| |
| ThreadLocalKey Api::api_native_key_ = OSThread::kUnsetThreadLocalKey; |
| Dart_Handle Api::true_handle_ = NULL; |
| Dart_Handle Api::false_handle_ = NULL; |
| Dart_Handle Api::null_handle_ = NULL; |
| Dart_Handle Api::empty_string_handle_ = NULL; |
| |
| |
| const char* CanonicalFunction(const char* func) { |
| if (strncmp(func, "dart::", 6) == 0) { |
| return func + 6; |
| } else { |
| return func; |
| } |
| } |
| |
| |
| static RawInstance* GetListInstance(Isolate* isolate, const Object& obj) { |
| if (obj.IsInstance()) { |
| const Library& core_lib = Library::Handle(Library::CoreLibrary()); |
| const Class& list_class = |
| Class::Handle(core_lib.LookupClass(Symbols::List())); |
| ASSERT(!list_class.IsNull()); |
| const Instance& instance = Instance::Cast(obj); |
| const Class& obj_class = Class::Handle(isolate, obj.clazz()); |
| Error& malformed_type_error = Error::Handle(isolate); |
| if (obj_class.IsSubtypeOf(Object::null_type_arguments(), |
| list_class, |
| Object::null_type_arguments(), |
| &malformed_type_error)) { |
| ASSERT(malformed_type_error.IsNull()); // Type is a raw List. |
| return instance.raw(); |
| } |
| } |
| return Instance::null(); |
| } |
| |
| static RawInstance* GetMapInstance(Isolate* isolate, const Object& obj) { |
| if (obj.IsInstance()) { |
| const Library& core_lib = Library::Handle(Library::CoreLibrary()); |
| const Class& map_class = |
| Class::Handle(core_lib.LookupClass(Symbols::Map())); |
| ASSERT(!map_class.IsNull()); |
| const Instance& instance = Instance::Cast(obj); |
| const Class& obj_class = Class::Handle(isolate, obj.clazz()); |
| Error& malformed_type_error = Error::Handle(isolate); |
| if (obj_class.IsSubtypeOf(Object::null_type_arguments(), |
| map_class, |
| Object::null_type_arguments(), |
| &malformed_type_error)) { |
| ASSERT(malformed_type_error.IsNull()); // Type is a raw Map. |
| return instance.raw(); |
| } |
| } |
| return Instance::null(); |
| } |
| |
| |
| static bool GetNativeStringArgument(NativeArguments* arguments, |
| int arg_index, |
| Dart_Handle* str, |
| void** peer) { |
| ASSERT(peer != NULL); |
| if (Api::StringGetPeerHelper(arguments, arg_index, peer)) { |
| *str = NULL; |
| return true; |
| } |
| Isolate* isolate = arguments->isolate(); |
| ASSERT(isolate == Isolate::Current()); |
| *peer = NULL; |
| REUSABLE_OBJECT_HANDLESCOPE(isolate); |
| Object& obj = isolate->ObjectHandle(); |
| obj = arguments->NativeArgAt(arg_index); |
| if (RawObject::IsStringClassId(obj.GetClassId())) { |
| ASSERT(isolate->api_state() && |
| isolate->api_state()->top_scope() != NULL); |
| *str = Api::NewHandle(isolate, obj.raw()); |
| return true; |
| } |
| if (obj.IsNull()) { |
| *str = Api::Null(); |
| return true; |
| } |
| return false; |
| } |
| |
| |
| static bool GetNativeIntegerArgument(NativeArguments* arguments, |
| int arg_index, |
| int64_t* value) { |
| ASSERT(value != NULL); |
| if (Api::GetNativeIntegerArgument(arguments, arg_index, value)) { |
| return true; |
| } |
| Isolate* isolate = arguments->isolate(); |
| ASSERT(isolate == Isolate::Current()); |
| REUSABLE_OBJECT_HANDLESCOPE(isolate); |
| Object& obj = isolate->ObjectHandle(); |
| obj = arguments->NativeArgAt(arg_index); |
| intptr_t cid = obj.GetClassId(); |
| if (cid == kBigintCid) { |
| const Bigint& bigint = Bigint::Cast(obj); |
| if (bigint.FitsIntoInt64()) { |
| *value = bigint.AsInt64Value(); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| static bool GetNativeUnsignedIntegerArgument(NativeArguments* arguments, |
| int arg_index, |
| uint64_t* value) { |
| ASSERT(value != NULL); |
| int64_t arg_value = 0; |
| if (Api::GetNativeIntegerArgument(arguments, arg_index, &arg_value)) { |
| *value = static_cast<uint64_t>(arg_value); |
| return true; |
| } |
| Isolate* isolate = arguments->isolate(); |
| ASSERT(isolate == Isolate::Current()); |
| REUSABLE_OBJECT_HANDLESCOPE(isolate); |
| Object& obj = isolate->ObjectHandle(); |
| obj = arguments->NativeArgAt(arg_index); |
| intptr_t cid = obj.GetClassId(); |
| if (cid == kBigintCid) { |
| const Bigint& bigint = Bigint::Cast(obj); |
| if (bigint.FitsIntoUint64()) { |
| *value = bigint.AsUint64Value(); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| static bool GetNativeDoubleArgument(NativeArguments* arguments, |
| int arg_index, |
| double* value) { |
| ASSERT(value != NULL); |
| if (Api::GetNativeDoubleArgument(arguments, arg_index, value)) { |
| return true; |
| } |
| Isolate* isolate = arguments->isolate(); |
| ASSERT(isolate == Isolate::Current()); |
| REUSABLE_OBJECT_HANDLESCOPE(isolate); |
| Object& obj = isolate->ObjectHandle(); |
| obj = arguments->NativeArgAt(arg_index); |
| intptr_t cid = obj.GetClassId(); |
| if (cid == kBigintCid) { |
| *value = Bigint::Cast(obj).AsDoubleValue(); |
| return true; |
| } |
| return false; |
| } |
| |
| |
| static Dart_Handle GetNativeFieldsOfArgument(NativeArguments* arguments, |
| int arg_index, |
| int num_fields, |
| intptr_t* field_values, |
| const char* current_func) { |
| ASSERT(field_values != NULL); |
| if (Api::GetNativeFieldsOfArgument(arguments, |
| arg_index, |
| num_fields, |
| field_values)) { |
| return Api::Success(); |
| } |
| Isolate* isolate = arguments->isolate(); |
| ASSERT(isolate == Isolate::Current()); |
| REUSABLE_OBJECT_HANDLESCOPE(isolate); |
| Object& obj = isolate->ObjectHandle(); |
| obj = arguments->NativeArgAt(arg_index); |
| if (obj.IsNull()) { |
| memset(field_values, 0, (num_fields * sizeof(field_values[0]))); |
| return Api::Success(); |
| } |
| // We did not succeed in extracting the native fields report the |
| // appropriate error. |
| if (!obj.IsInstance()) { |
| return Api::NewError("%s expects argument at index '%d' to be of" |
| " type Instance.", current_func, arg_index); |
| } |
| const Instance& instance = Instance::Cast(obj); |
| int field_count = instance.NumNativeFields(); |
| ASSERT(num_fields != field_count); |
| return Api::NewError( |
| "%s: expected %d 'num_fields' but was passed in %d.", |
| current_func, field_count, num_fields); |
| } |
| |
| |
| Heap::Space SpaceForExternal(Isolate* isolate, intptr_t size) { |
| Heap* heap = isolate->heap(); |
| // If 'size' would be a significant fraction of new space, then use old. |
| static const int kExtNewRatio = 16; |
| if (size > (heap->CapacityInWords(Heap::kNew) * kWordSize) / kExtNewRatio) { |
| return Heap::kOld; |
| } else { |
| return Heap::kNew; |
| } |
| } |
| |
| |
| static RawObject* Send0Arg(const Instance& receiver, |
| const String& selector) { |
| const intptr_t kNumArgs = 1; |
| ArgumentsDescriptor args_desc( |
| Array::Handle(ArgumentsDescriptor::New(kNumArgs))); |
| const Function& function = Function::Handle( |
| Resolver::ResolveDynamic(receiver, selector, args_desc)); |
| if (function.IsNull()) { |
| return ApiError::New(String::Handle(String::New(""))); |
| } |
| const Array& args = Array::Handle(Array::New(kNumArgs)); |
| args.SetAt(0, receiver); |
| return DartEntry::InvokeFunction(function, args); |
| } |
| |
| |
| static RawObject* Send1Arg(const Instance& receiver, |
| const String& selector, |
| const Instance& argument) { |
| const intptr_t kNumArgs = 2; |
| ArgumentsDescriptor args_desc( |
| Array::Handle(ArgumentsDescriptor::New(kNumArgs))); |
| const Function& function = Function::Handle( |
| Resolver::ResolveDynamic(receiver, selector, args_desc)); |
| if (function.IsNull()) { |
| return ApiError::New(String::Handle(String::New(""))); |
| } |
| const Array& args = Array::Handle(Array::New(kNumArgs)); |
| args.SetAt(0, receiver); |
| args.SetAt(1, argument); |
| return DartEntry::InvokeFunction(function, args); |
| } |
| |
| |
| WeakReferenceSetBuilder* ApiState::NewWeakReferenceSetBuilder() { |
| return new WeakReferenceSetBuilder(this); |
| } |
| |
| |
| void ApiState::DelayWeakReferenceSet(WeakReferenceSet* reference_set) { |
| WeakReferenceSet::Push(reference_set, &delayed_weak_reference_sets_); |
| } |
| |
| |
| Dart_Handle Api::InitNewHandle(Isolate* isolate, RawObject* raw) { |
| LocalHandles* local_handles = Api::TopScope(isolate)->local_handles(); |
| ASSERT(local_handles != NULL); |
| LocalHandle* ref = local_handles->AllocateHandle(); |
| ref->set_raw(raw); |
| return reinterpret_cast<Dart_Handle>(ref); |
| } |
| |
| |
| Dart_Handle Api::NewHandle(Isolate* isolate, RawObject* raw) { |
| if (raw == Object::null()) { |
| return Null(); |
| } |
| if (raw == Bool::True().raw()) { |
| return True(); |
| } |
| if (raw == Bool::False().raw()) { |
| return False(); |
| } |
| return InitNewHandle(isolate, raw); |
| } |
| |
| |
| RawObject* Api::UnwrapHandle(Dart_Handle object) { |
| #if defined(DEBUG) |
| Isolate* isolate = Isolate::Current(); |
| ASSERT(isolate != NULL); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| ASSERT(!FLAG_verify_handles || |
| state->IsValidLocalHandle(object) || |
| Dart::vm_isolate()->api_state()->IsValidLocalHandle(object)); |
| ASSERT(FinalizablePersistentHandle::raw_offset() == 0 && |
| PersistentHandle::raw_offset() == 0 && |
| LocalHandle::raw_offset() == 0); |
| #endif |
| return (reinterpret_cast<LocalHandle*>(object))->raw(); |
| } |
| |
| |
| #define DEFINE_UNWRAP(type) \ |
| const type& Api::Unwrap##type##Handle(Isolate* iso, \ |
| Dart_Handle dart_handle) { \ |
| const Object& obj = Object::Handle(iso, Api::UnwrapHandle(dart_handle)); \ |
| if (obj.Is##type()) { \ |
| return type::Cast(obj); \ |
| } \ |
| return type::Handle(iso); \ |
| } |
| CLASS_LIST_FOR_HANDLES(DEFINE_UNWRAP) |
| #undef DEFINE_UNWRAP |
| |
| |
| const String& Api::UnwrapStringHandle(const ReusableObjectHandleScope& reuse, |
| Dart_Handle dart_handle) { |
| Object& ref = reuse.Handle(); |
| ref = Api::UnwrapHandle(dart_handle); |
| if (ref.IsString()) { |
| return String::Cast(ref); |
| } |
| return Object::null_string(); |
| } |
| |
| |
| const Instance& Api::UnwrapInstanceHandle( |
| const ReusableObjectHandleScope& reuse, Dart_Handle dart_handle) { |
| Object& ref = reuse.Handle(); |
| ref = Api::UnwrapHandle(dart_handle); |
| if (ref.IsInstance()) { |
| return Instance::Cast(ref); |
| } |
| return Object::null_instance(); |
| } |
| |
| |
| Dart_Handle Api::CheckAndFinalizePendingClasses(Isolate* isolate) { |
| if (!isolate->AllowClassFinalization()) { |
| // Class finalization is blocked for the isolate. Do nothing. |
| return Api::Success(); |
| } |
| if (ClassFinalizer::ProcessPendingClasses()) { |
| return Api::Success(); |
| } |
| ASSERT(isolate->object_store()->sticky_error() != Object::null()); |
| return Api::NewHandle(isolate, isolate->object_store()->sticky_error()); |
| } |
| |
| |
| Dart_Isolate Api::CastIsolate(Isolate* isolate) { |
| return reinterpret_cast<Dart_Isolate>(isolate); |
| } |
| |
| |
| Dart_Handle Api::NewError(const char* format, ...) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| va_list args; |
| va_start(args, format); |
| intptr_t len = OS::VSNPrint(NULL, 0, format, args); |
| va_end(args); |
| |
| char* buffer = isolate->current_zone()->Alloc<char>(len + 1); |
| va_list args2; |
| va_start(args2, format); |
| OS::VSNPrint(buffer, (len + 1), format, args2); |
| va_end(args2); |
| |
| const String& message = String::Handle(isolate, String::New(buffer)); |
| return Api::NewHandle(isolate, ApiError::New(message)); |
| } |
| |
| |
| void Api::SetupAcquiredError(Isolate* isolate) { |
| ASSERT(isolate != NULL); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| state->SetupAcquiredError(); |
| } |
| |
| |
| Dart_Handle Api::AcquiredError(Isolate* isolate) { |
| ASSERT(isolate != NULL); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| PersistentHandle* acquired_error_handle = state->AcquiredError(); |
| return reinterpret_cast<Dart_Handle>(acquired_error_handle); |
| } |
| |
| |
| ApiLocalScope* Api::TopScope(Isolate* isolate) { |
| ASSERT(isolate != NULL); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| ApiLocalScope* scope = state->top_scope(); |
| ASSERT(scope != NULL); |
| return scope; |
| } |
| |
| |
| void Api::InitOnce() { |
| ASSERT(api_native_key_ == OSThread::kUnsetThreadLocalKey); |
| api_native_key_ = OSThread::CreateThreadLocal(); |
| ASSERT(api_native_key_ != OSThread::kUnsetThreadLocalKey); |
| } |
| |
| |
| void Api::InitHandles() { |
| Isolate* isolate = Isolate::Current(); |
| ASSERT(isolate != NULL); |
| ASSERT(isolate == Dart::vm_isolate()); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| ASSERT(true_handle_ == NULL); |
| true_handle_ = Api::InitNewHandle(isolate, Bool::True().raw()); |
| |
| ASSERT(false_handle_ == NULL); |
| false_handle_ = Api::InitNewHandle(isolate, Bool::False().raw()); |
| |
| ASSERT(null_handle_ == NULL); |
| null_handle_ = Api::InitNewHandle(isolate, Object::null()); |
| |
| ASSERT(empty_string_handle_ == NULL); |
| empty_string_handle_ = Api::InitNewHandle(isolate, Symbols::Empty().raw()); |
| } |
| |
| |
| bool Api::StringGetPeerHelper(NativeArguments* arguments, |
| int arg_index, |
| void** peer) { |
| NoGCScope no_gc_scope; |
| RawObject* raw_obj = arguments->NativeArgAt(arg_index); |
| if (!raw_obj->IsHeapObject()) { |
| return false; |
| } |
| intptr_t cid = raw_obj->GetClassId(); |
| if (cid == kExternalOneByteStringCid) { |
| RawExternalOneByteString* raw_string = |
| reinterpret_cast<RawExternalOneByteString*>(raw_obj)->ptr(); |
| ExternalStringData<uint8_t>* data = raw_string->external_data_; |
| *peer = data->peer(); |
| return true; |
| } |
| if (cid == kOneByteStringCid || cid == kTwoByteStringCid) { |
| Isolate* isolate = arguments->isolate(); |
| *peer = isolate->heap()->GetPeer(raw_obj); |
| return (*peer != 0); |
| } |
| if (cid == kExternalTwoByteStringCid) { |
| RawExternalTwoByteString* raw_string = |
| reinterpret_cast<RawExternalTwoByteString*>(raw_obj)->ptr(); |
| ExternalStringData<uint16_t>* data = raw_string->external_data_; |
| *peer = data->peer(); |
| return true; |
| } |
| return false; |
| } |
| |
| |
| bool Api::GetNativeReceiver(NativeArguments* arguments, intptr_t* value) { |
| NoGCScope no_gc_scope; |
| RawObject* raw_obj = arguments->NativeArg0(); |
| if (raw_obj->IsHeapObject()) { |
| intptr_t cid = raw_obj->GetClassId(); |
| if (cid > kNumPredefinedCids) { |
| ASSERT(Instance::Cast(Object::Handle(raw_obj)).IsValidNativeIndex(0)); |
| RawTypedData* native_fields = *reinterpret_cast<RawTypedData**>( |
| RawObject::ToAddr(raw_obj) + sizeof(RawObject)); |
| if (native_fields == TypedData::null()) { |
| *value = 0; |
| } else { |
| *value = *bit_cast<intptr_t*, uint8_t*>(native_fields->ptr()->data()); |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| bool Api::GetNativeBooleanArgument(NativeArguments* arguments, |
| int arg_index, |
| bool* value) { |
| NoGCScope no_gc_scope; |
| RawObject* raw_obj = arguments->NativeArgAt(arg_index); |
| if (raw_obj->IsHeapObject()) { |
| intptr_t cid = raw_obj->GetClassId(); |
| if (cid == kBoolCid) { |
| *value = (raw_obj == Object::bool_true().raw()); |
| return true; |
| } |
| if (cid == kNullCid) { |
| *value = false; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| bool Api::GetNativeIntegerArgument(NativeArguments* arguments, |
| int arg_index, |
| int64_t* value) { |
| NoGCScope no_gc_scope; |
| RawObject* raw_obj = arguments->NativeArgAt(arg_index); |
| if (raw_obj->IsHeapObject()) { |
| intptr_t cid = raw_obj->GetClassId(); |
| if (cid == kMintCid) { |
| *value = reinterpret_cast<RawMint*>(raw_obj)->ptr()->value_; |
| return true; |
| } |
| return false; |
| } |
| *value = Smi::Value(reinterpret_cast<RawSmi*>(raw_obj)); |
| return true; |
| } |
| |
| |
| bool Api::GetNativeDoubleArgument(NativeArguments* arguments, |
| int arg_index, |
| double* value) { |
| NoGCScope no_gc_scope; |
| RawObject* raw_obj = arguments->NativeArgAt(arg_index); |
| if (raw_obj->IsHeapObject()) { |
| intptr_t cid = raw_obj->GetClassId(); |
| if (cid == kDoubleCid) { |
| *value = reinterpret_cast<RawDouble*>(raw_obj)->ptr()->value_; |
| return true; |
| } |
| if (cid == kMintCid) { |
| *value = static_cast<double>( |
| reinterpret_cast<RawMint*>(raw_obj)->ptr()->value_); |
| return true; |
| } |
| return false; |
| } |
| *value = static_cast<double>(Smi::Value(reinterpret_cast<RawSmi*>(raw_obj))); |
| return true; |
| } |
| |
| |
| bool Api::GetNativeFieldsOfArgument(NativeArguments* arguments, |
| int arg_index, |
| int num_fields, |
| intptr_t* field_values) { |
| NoGCScope no_gc_scope; |
| RawObject* raw_obj = arguments->NativeArgAt(arg_index); |
| if (raw_obj->IsHeapObject()) { |
| intptr_t cid = raw_obj->GetClassId(); |
| if (cid > kNumPredefinedCids) { |
| RawTypedData* native_fields = *reinterpret_cast<RawTypedData**>( |
| RawObject::ToAddr(raw_obj) + sizeof(RawObject)); |
| if (native_fields == TypedData::null()) { |
| memset(field_values, 0, (num_fields * sizeof(field_values[0]))); |
| } else if (num_fields == Smi::Value(native_fields->ptr()->length_)) { |
| intptr_t* native_values = |
| bit_cast<intptr_t*, uint8_t*>(native_fields->ptr()->data()); |
| memmove(field_values, |
| native_values, |
| (num_fields * sizeof(field_values[0]))); |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| void Api::SetWeakHandleReturnValue(NativeArguments* args, |
| Dart_WeakPersistentHandle retval) { |
| args->SetReturnUnsafe(FinalizablePersistentHandle::Cast(retval)->raw()); |
| } |
| |
| |
| PersistentHandle* PersistentHandle::Cast(Dart_PersistentHandle handle) { |
| ASSERT(Isolate::Current()->api_state()->IsValidPersistentHandle(handle)); |
| return reinterpret_cast<PersistentHandle*>(handle); |
| } |
| |
| |
| FinalizablePersistentHandle* FinalizablePersistentHandle::Cast( |
| Dart_WeakPersistentHandle handle) { |
| #if defined(DEBUG) |
| ApiState* state = Isolate::Current()->api_state(); |
| ASSERT(state->IsValidWeakPersistentHandle(handle) || |
| state->IsValidPrologueWeakPersistentHandle(handle)); |
| #endif |
| return reinterpret_cast<FinalizablePersistentHandle*>(handle); |
| } |
| |
| |
| void FinalizablePersistentHandle::Finalize( |
| Isolate* isolate, FinalizablePersistentHandle* handle) { |
| if (!handle->raw()->IsHeapObject()) { |
| return; |
| } |
| Dart_WeakPersistentHandleFinalizer callback = handle->callback(); |
| ASSERT(callback != NULL); |
| void* peer = handle->peer(); |
| Dart_WeakPersistentHandle object = handle->apiHandle(); |
| (*callback)(isolate->init_callback_data(), object, peer); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| if (handle->IsPrologueWeakPersistent()) { |
| state->prologue_weak_persistent_handles().FreeHandle(handle); |
| } else { |
| state->weak_persistent_handles().FreeHandle(handle); |
| } |
| } |
| |
| |
| // --- Handles --- |
| |
| DART_EXPORT bool Dart_IsError(Dart_Handle handle) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return RawObject::IsErrorClassId(Api::ClassId(handle)); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsApiError(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(object) == kApiErrorCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsUnhandledExceptionError(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(object) == kUnhandledExceptionCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsCompilationError(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(object) == kLanguageErrorCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsFatalError(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(object) == kUnwindErrorCid; |
| } |
| |
| |
| DART_EXPORT const char* Dart_GetError(Dart_Handle handle) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(handle)); |
| if (obj.IsError()) { |
| const Error& error = Error::Cast(obj); |
| const char* str = error.ToErrorCString(); |
| intptr_t len = strlen(str) + 1; |
| char* str_copy = Api::TopScope(isolate)->zone()->Alloc<char>(len); |
| strncpy(str_copy, str, len); |
| // Strip a possible trailing '\n'. |
| if ((len > 1) && (str_copy[len - 2] == '\n')) { |
| str_copy[len - 2] = '\0'; |
| } |
| return str_copy; |
| } else { |
| return ""; |
| } |
| } |
| |
| |
| DART_EXPORT bool Dart_ErrorHasException(Dart_Handle handle) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(handle)); |
| return obj.IsUnhandledException(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_ErrorGetException(Dart_Handle handle) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(handle)); |
| if (obj.IsUnhandledException()) { |
| const UnhandledException& error = UnhandledException::Cast(obj); |
| return Api::NewHandle(isolate, error.exception()); |
| } else if (obj.IsError()) { |
| return Api::NewError("This error is not an unhandled exception error."); |
| } else { |
| return Api::NewError("Can only get exceptions from error handles."); |
| } |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_ErrorGetStacktrace(Dart_Handle handle) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(handle)); |
| if (obj.IsUnhandledException()) { |
| const UnhandledException& error = UnhandledException::Cast(obj); |
| return Api::NewHandle(isolate, error.stacktrace()); |
| } else if (obj.IsError()) { |
| return Api::NewError("This error is not an unhandled exception error."); |
| } else { |
| return Api::NewError("Can only get stacktraces from error handles."); |
| } |
| } |
| |
| |
| // TODO(turnidge): This clones Api::NewError. I need to use va_copy to |
| // fix this but not sure if it available on all of our builds. |
| DART_EXPORT Dart_Handle Dart_NewApiError(const char* error) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| const String& message = String::Handle(isolate, String::New(error)); |
| return Api::NewHandle(isolate, ApiError::New(message)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewUnhandledExceptionError(Dart_Handle exception) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| const Instance& obj = Api::UnwrapInstanceHandle(isolate, exception); |
| if (obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, exception, Instance); |
| } |
| const Stacktrace& stacktrace = Stacktrace::Handle(isolate); |
| return Api::NewHandle(isolate, UnhandledException::New(obj, stacktrace)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_PropagateError(Dart_Handle handle) { |
| Isolate* isolate = Isolate::Current(); |
| { |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(handle)); |
| if (!obj.IsError()) { |
| return Api::NewError( |
| "%s expects argument 'handle' to be an error handle. " |
| "Did you forget to check Dart_IsError first?", |
| CURRENT_FUNC); |
| } |
| } |
| if (isolate->top_exit_frame_info() == 0) { |
| // There are no dart frames on the stack so it would be illegal to |
| // propagate an error here. |
| return Api::NewError("No Dart frames on stack, cannot propagate error."); |
| } |
| |
| // Unwind all the API scopes till the exit frame before propagating. |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| const Error* error; |
| { |
| // We need to preserve the error object across the destruction of zones |
| // when the ApiScopes are unwound. By using NoGCScope, we can ensure |
| // that GC won't touch the raw error object before creating a valid |
| // handle for it in the surviving zone. |
| NoGCScope no_gc; |
| RawError* raw_error = Api::UnwrapErrorHandle(isolate, handle).raw(); |
| state->UnwindScopes(isolate->top_exit_frame_info()); |
| error = &Error::Handle(isolate, raw_error); |
| } |
| Exceptions::PropagateError(*error); |
| UNREACHABLE(); |
| return Api::NewError("Cannot reach here. Internal error."); |
| } |
| |
| |
| DART_EXPORT void _Dart_ReportErrorHandle(const char* file, |
| int line, |
| const char* handle, |
| const char* message) { |
| fprintf(stderr, "%s:%d: error handle: '%s':\n '%s'\n", |
| file, line, handle, message); |
| OS::Abort(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_ToString(Dart_Handle object) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(object)); |
| if (obj.IsString()) { |
| return Api::NewHandle(isolate, obj.raw()); |
| } else if (obj.IsInstance()) { |
| CHECK_CALLBACK_STATE(isolate); |
| const Instance& receiver = Instance::Cast(obj); |
| return Api::NewHandle(isolate, DartLibraryCalls::ToString(receiver)); |
| } else { |
| CHECK_CALLBACK_STATE(isolate); |
| // This is a VM internal object. Call the C++ method of printing. |
| return Api::NewHandle(isolate, String::New(obj.ToCString())); |
| } |
| } |
| |
| |
| DART_EXPORT bool Dart_IdentityEquals(Dart_Handle obj1, Dart_Handle obj2) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| { |
| NoGCScope ngc; |
| if (Api::UnwrapHandle(obj1) == Api::UnwrapHandle(obj2)) { |
| return true; |
| } |
| } |
| const Object& object1 = Object::Handle(isolate, Api::UnwrapHandle(obj1)); |
| const Object& object2 = Object::Handle(isolate, Api::UnwrapHandle(obj2)); |
| if (object1.IsInstance() && object2.IsInstance()) { |
| return Instance::Cast(object1).IsIdenticalTo(Instance::Cast(object2)); |
| } |
| return false; |
| } |
| |
| |
| DART_EXPORT uint64_t Dart_IdentityHash(Dart_Handle obj) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| |
| const Object& object = Object::Handle(isolate, Api::UnwrapHandle(obj)); |
| if (!object.IsInstance() && !object.IsNull()) { |
| return 0; |
| } |
| |
| const Library& libcore = Library::Handle(isolate, Library::CoreLibrary()); |
| const String& function_name = String::Handle(isolate, |
| String::New("identityHashCode")); |
| const Function& function = |
| Function::Handle(isolate, |
| libcore.LookupFunctionAllowPrivate(function_name)); |
| if (function.IsNull()) { |
| UNREACHABLE(); |
| return 0; |
| } |
| |
| const Array& arguments = Array::Handle(isolate, Array::New(1)); |
| arguments.SetAt(0, object); |
| const Object& result = |
| Object::Handle(isolate, DartEntry::InvokeFunction(function, arguments)); |
| |
| if (result.IsSmi()) { |
| return Smi::Cast(result).Value(); |
| } |
| if (result.IsMint()) { |
| const Mint& mint = Mint::Cast(result); |
| if (!mint.IsNegative()) { |
| return mint.AsInt64Value(); |
| } |
| } |
| if (result.IsBigint()) { |
| const Bigint& bigint = Bigint::Cast(result); |
| if (bigint.FitsIntoUint64()) { |
| return bigint.AsUint64Value(); |
| } |
| } |
| return 0; |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_HandleFromPersistent( |
| Dart_PersistentHandle object) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| PersistentHandle* ref = PersistentHandle::Cast(object); |
| return Api::NewHandle(isolate, ref->raw()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_HandleFromWeakPersistent( |
| Dart_WeakPersistentHandle object) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| FinalizablePersistentHandle* weak_ref = |
| FinalizablePersistentHandle::Cast(object); |
| return Api::NewHandle(isolate, weak_ref->raw()); |
| } |
| |
| |
| DART_EXPORT Dart_PersistentHandle Dart_NewPersistentHandle(Dart_Handle object) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| const Object& old_ref = Object::Handle(isolate, Api::UnwrapHandle(object)); |
| PersistentHandle* new_ref = state->persistent_handles().AllocateHandle(); |
| new_ref->set_raw(old_ref); |
| return new_ref->apiHandle(); |
| } |
| |
| |
| DART_EXPORT void Dart_SetPersistentHandle(Dart_PersistentHandle obj1, |
| Dart_Handle obj2) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| ASSERT(state->IsValidPersistentHandle(obj1)); |
| const Object& obj2_ref = Object::Handle(isolate, Api::UnwrapHandle(obj2)); |
| PersistentHandle* obj1_ref = PersistentHandle::Cast(obj1); |
| obj1_ref->set_raw(obj2_ref); |
| } |
| |
| |
| static Dart_WeakPersistentHandle AllocateFinalizableHandle( |
| Isolate* isolate, |
| Dart_Handle object, |
| bool is_prologue, |
| void* peer, |
| intptr_t external_allocation_size, |
| Dart_WeakPersistentHandleFinalizer callback) { |
| REUSABLE_OBJECT_HANDLESCOPE(isolate); |
| Object& ref = isolate->ObjectHandle(); |
| ref = Api::UnwrapHandle(object); |
| FinalizablePersistentHandle* finalizable_ref = |
| FinalizablePersistentHandle::New(isolate, |
| is_prologue, |
| ref, |
| peer, |
| callback, |
| external_allocation_size); |
| return finalizable_ref->apiHandle(); |
| } |
| |
| |
| DART_EXPORT Dart_WeakPersistentHandle Dart_NewWeakPersistentHandle( |
| Dart_Handle object, |
| void* peer, |
| intptr_t external_allocation_size, |
| Dart_WeakPersistentHandleFinalizer callback) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| if (callback == NULL) { |
| return NULL; |
| } |
| return AllocateFinalizableHandle(isolate, |
| object, |
| false, |
| peer, |
| external_allocation_size, |
| callback); |
| } |
| |
| |
| DART_EXPORT Dart_WeakPersistentHandle Dart_NewPrologueWeakPersistentHandle( |
| Dart_Handle object, |
| void* peer, |
| intptr_t external_allocation_size, |
| Dart_WeakPersistentHandleFinalizer callback) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| if (callback == NULL) { |
| return NULL; |
| } |
| return AllocateFinalizableHandle(isolate, |
| object, |
| true, |
| peer, |
| external_allocation_size, |
| callback); |
| } |
| |
| |
| DART_EXPORT void Dart_DeletePersistentHandle(Dart_PersistentHandle object) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| PersistentHandle* ref = PersistentHandle::Cast(object); |
| ASSERT(!state->IsProtectedHandle(ref)); |
| if (!state->IsProtectedHandle(ref)) { |
| state->persistent_handles().FreeHandle(ref); |
| } |
| } |
| |
| |
| DART_EXPORT void Dart_DeleteWeakPersistentHandle( |
| Dart_Isolate current_isolate, |
| Dart_WeakPersistentHandle object) { |
| Isolate* isolate = reinterpret_cast<Isolate*>(current_isolate); |
| CHECK_ISOLATE(isolate); |
| ASSERT(isolate == Isolate::Current()); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| FinalizablePersistentHandle* weak_ref = |
| FinalizablePersistentHandle::Cast(object); |
| weak_ref->EnsureFreeExternal(isolate); |
| if (weak_ref->IsPrologueWeakPersistent()) { |
| ASSERT(state->IsValidPrologueWeakPersistentHandle(object)); |
| state->prologue_weak_persistent_handles().FreeHandle(weak_ref); |
| } else { |
| ASSERT(!state->IsValidPrologueWeakPersistentHandle(object)); |
| state->weak_persistent_handles().FreeHandle(weak_ref); |
| } |
| } |
| |
| |
| DART_EXPORT bool Dart_IsPrologueWeakPersistentHandle( |
| Dart_WeakPersistentHandle object) { |
| FinalizablePersistentHandle* weak_ref = |
| FinalizablePersistentHandle::Cast(object); |
| return weak_ref->IsPrologueWeakPersistent(); |
| } |
| |
| |
| DART_EXPORT Dart_WeakReferenceSetBuilder Dart_NewWeakReferenceSetBuilder() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| return reinterpret_cast<Dart_WeakReferenceSetBuilder>( |
| state->NewWeakReferenceSetBuilder()); |
| } |
| |
| |
| DART_EXPORT Dart_WeakReferenceSet Dart_NewWeakReferenceSet( |
| Dart_WeakReferenceSetBuilder set_builder, |
| Dart_WeakPersistentHandle key, |
| Dart_WeakPersistentHandle value) { |
| ASSERT(set_builder != NULL && key != NULL); |
| WeakReferenceSetBuilder* builder = |
| reinterpret_cast<WeakReferenceSetBuilder*>(set_builder); |
| ApiState* state = builder->api_state(); |
| ASSERT(state == Isolate::Current()->api_state()); |
| WeakReferenceSet* reference_set = builder->NewWeakReferenceSet(); |
| reference_set->AppendKey(key); |
| if (value != NULL) { |
| reference_set->AppendValue(value); |
| } |
| state->DelayWeakReferenceSet(reference_set); |
| return reinterpret_cast<Dart_WeakReferenceSet>(reference_set); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_AppendToWeakReferenceSet( |
| Dart_WeakReferenceSet reference_set, |
| Dart_WeakPersistentHandle key, |
| Dart_WeakPersistentHandle value) { |
| ASSERT(reference_set != NULL); |
| WeakReferenceSet* set = reinterpret_cast<WeakReferenceSet*>(reference_set); |
| set->Append(key, value); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_AppendKeyToWeakReferenceSet( |
| Dart_WeakReferenceSet reference_set, |
| Dart_WeakPersistentHandle key) { |
| ASSERT(reference_set != NULL); |
| WeakReferenceSet* set = reinterpret_cast<WeakReferenceSet*>(reference_set); |
| set->AppendKey(key); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_AppendValueToWeakReferenceSet( |
| Dart_WeakReferenceSet reference_set, |
| Dart_WeakPersistentHandle value) { |
| ASSERT(reference_set != NULL); |
| WeakReferenceSet* set = reinterpret_cast<WeakReferenceSet*>(reference_set); |
| set->AppendValue(value); |
| return Api::Success(); |
| } |
| |
| |
| // --- Garbage Collection Callbacks -- |
| |
| DART_EXPORT Dart_Handle Dart_SetGcCallbacks( |
| Dart_GcPrologueCallback prologue_callback, |
| Dart_GcEpilogueCallback epilogue_callback) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| if (prologue_callback != NULL) { |
| if (isolate->gc_prologue_callback() != NULL) { |
| return Api::NewError( |
| "%s permits only one gc prologue callback to be registered, please " |
| "remove the existing callback and then add this callback", |
| CURRENT_FUNC); |
| } |
| } else { |
| if (isolate->gc_prologue_callback() == NULL) { |
| return Api::NewError( |
| "%s expects 'prologue_callback' to be present in the callback set.", |
| CURRENT_FUNC); |
| } |
| } |
| if (epilogue_callback != NULL) { |
| if (isolate->gc_epilogue_callback() != NULL) { |
| return Api::NewError( |
| "%s permits only one gc epilogue callback to be registered, please " |
| "remove the existing callback and then add this callback", |
| CURRENT_FUNC); |
| } |
| } else { |
| if (isolate->gc_epilogue_callback() == NULL) { |
| return Api::NewError( |
| "%s expects 'epilogue_callback' to be present in the callback set.", |
| CURRENT_FUNC); |
| } |
| } |
| isolate->set_gc_prologue_callback(prologue_callback); |
| isolate->set_gc_epilogue_callback(epilogue_callback); |
| return Api::Success(); |
| } |
| |
| |
| class PrologueWeakVisitor : public HandleVisitor { |
| public: |
| PrologueWeakVisitor(Isolate* isolate, |
| Dart_GcPrologueWeakHandleCallback callback) |
| : HandleVisitor(isolate), |
| callback_(callback) { |
| } |
| |
| void VisitHandle(uword addr) { |
| NoGCScope no_gc; |
| FinalizablePersistentHandle* handle = |
| reinterpret_cast<FinalizablePersistentHandle*>(addr); |
| RawObject* raw_obj = handle->raw(); |
| if (raw_obj->IsHeapObject()) { |
| ASSERT(handle->IsPrologueWeakPersistent()); |
| ReusableInstanceHandleScope reused_instance_handle(isolate()); |
| Instance& instance = reused_instance_handle.Handle(); |
| instance ^= reinterpret_cast<RawInstance*>(handle->raw()); |
| intptr_t num_native_fields = instance.NumNativeFields(); |
| intptr_t* native_fields = instance.NativeFieldsDataAddr(); |
| if (native_fields != NULL) { |
| callback_(isolate()->init_callback_data(), |
| reinterpret_cast<Dart_WeakPersistentHandle>(addr), |
| num_native_fields, |
| native_fields); |
| } |
| } |
| } |
| |
| private: |
| Dart_GcPrologueWeakHandleCallback callback_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PrologueWeakVisitor); |
| }; |
| |
| |
| DART_EXPORT Dart_Handle Dart_VisitPrologueWeakHandles( |
| Dart_GcPrologueWeakHandleCallback callback) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| PrologueWeakVisitor visitor(isolate, callback); |
| isolate->VisitPrologueWeakPersistentHandles(&visitor); |
| return Api::Success(); |
| } |
| |
| |
| // --- Initialization and Globals --- |
| |
| DART_EXPORT const char* Dart_VersionString() { |
| return Version::String(); |
| } |
| |
| DART_EXPORT bool Dart_Initialize( |
| Dart_IsolateCreateCallback create, |
| Dart_IsolateInterruptCallback interrupt, |
| Dart_IsolateUnhandledExceptionCallback unhandled, |
| Dart_IsolateShutdownCallback shutdown, |
| Dart_FileOpenCallback file_open, |
| Dart_FileReadCallback file_read, |
| Dart_FileWriteCallback file_write, |
| Dart_FileCloseCallback file_close, |
| Dart_EntropySource entropy_source) { |
| const char* err_msg = Dart::InitOnce(create, interrupt, unhandled, shutdown, |
| file_open, file_read, file_write, |
| file_close, entropy_source); |
| if (err_msg != NULL) { |
| OS::PrintErr("Dart_Initialize: %s\n", err_msg); |
| return false; |
| } |
| return true; |
| } |
| |
| |
| DART_EXPORT bool Dart_Cleanup() { |
| CHECK_NO_ISOLATE(Isolate::Current()); |
| const char* err_msg = Dart::Cleanup(); |
| if (err_msg != NULL) { |
| OS::PrintErr("Dart_Cleanup: %s\n", err_msg); |
| return false; |
| } |
| return true; |
| } |
| |
| |
| DART_EXPORT bool Dart_SetVMFlags(int argc, const char** argv) { |
| return Flags::ProcessCommandLineFlags(argc, argv); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsVMFlagSet(const char* flag_name) { |
| return Flags::IsSet(flag_name); |
| } |
| |
| |
| // --- Isolates --- |
| |
| static char* BuildIsolateName(const char* script_uri, |
| const char* main) { |
| if (script_uri == NULL) { |
| // Just use the main as the name. |
| if (main == NULL) { |
| return strdup("isolate"); |
| } else { |
| return strdup(main); |
| } |
| } |
| |
| if (Service::IsServiceIsolateName(script_uri)) { |
| return strdup(script_uri); |
| } |
| |
| // Skip past any slashes and backslashes in the script uri. |
| const char* last_slash = strrchr(script_uri, '/'); |
| if (last_slash != NULL) { |
| script_uri = last_slash + 1; |
| } |
| const char* last_backslash = strrchr(script_uri, '\\'); |
| if (last_backslash != NULL) { |
| script_uri = last_backslash + 1; |
| } |
| if (main == NULL) { |
| main = "main"; |
| } |
| |
| char* chars = NULL; |
| intptr_t len = OS::SNPrint(NULL, 0, "%s$%s", script_uri, main) + 1; |
| chars = reinterpret_cast<char*>(malloc(len)); |
| OS::SNPrint(chars, len, "%s$%s", script_uri, main); |
| return chars; |
| } |
| |
| |
| DART_EXPORT Dart_Isolate Dart_CreateIsolate(const char* script_uri, |
| const char* main, |
| const uint8_t* snapshot, |
| void* callback_data, |
| char** error) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| char* isolate_name = BuildIsolateName(script_uri, main); |
| Isolate* isolate = Dart::CreateIsolate(isolate_name); |
| free(isolate_name); |
| { |
| StackZone zone(isolate); |
| HANDLESCOPE(isolate); |
| const Error& error_obj = |
| Error::Handle(isolate, |
| Dart::InitializeIsolate(snapshot, callback_data)); |
| if (error_obj.IsNull()) { |
| if (FLAG_check_function_fingerprints) { |
| Library::CheckFunctionFingerprints(); |
| } |
| START_TIMER(isolate, time_total_runtime); |
| return reinterpret_cast<Dart_Isolate>(isolate); |
| } |
| *error = strdup(error_obj.ToErrorCString()); |
| } |
| Dart::ShutdownIsolate(); |
| return reinterpret_cast<Dart_Isolate>(NULL); |
| } |
| |
| |
| DART_EXPORT void Dart_ShutdownIsolate() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| { |
| StackZone zone(isolate); |
| HandleScope handle_scope(isolate); |
| Dart::RunShutdownCallback(); |
| } |
| STOP_TIMER(isolate, time_total_runtime); |
| Dart::ShutdownIsolate(); |
| } |
| |
| |
| DART_EXPORT Dart_Isolate Dart_CurrentIsolate() { |
| return Api::CastIsolate(Isolate::Current()); |
| } |
| |
| |
| DART_EXPORT void* Dart_CurrentIsolateData() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| return isolate->init_callback_data(); |
| } |
| |
| |
| DART_EXPORT void* Dart_IsolateData(Dart_Isolate isolate) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| if (isolate == NULL) { |
| FATAL1("%s expects argument 'isolate' to be non-null.", CURRENT_FUNC); |
| } |
| // TODO(16615): Validate isolate parameter. |
| Isolate* iso = reinterpret_cast<Isolate*>(isolate); |
| return iso->init_callback_data(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_DebugName() { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| return Api::NewHandle(isolate, String::New(isolate->name())); |
| } |
| |
| |
| |
| DART_EXPORT void Dart_EnterIsolate(Dart_Isolate isolate) { |
| CHECK_NO_ISOLATE(Isolate::Current()); |
| // TODO(16615): Validate isolate parameter. |
| Isolate* iso = reinterpret_cast<Isolate*>(isolate); |
| Isolate::SetCurrent(iso); |
| } |
| |
| |
| DART_EXPORT void Dart_IsolateBlocked() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| IsolateProfilerData* profiler_data = isolate->profiler_data(); |
| if (profiler_data == NULL) { |
| return; |
| } |
| profiler_data->Block(); |
| } |
| |
| |
| DART_EXPORT void Dart_IsolateUnblocked() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| IsolateProfilerData* profiler_data = isolate->profiler_data(); |
| if (profiler_data == NULL) { |
| return; |
| } |
| profiler_data->Unblock(); |
| } |
| |
| |
| DART_EXPORT void Dart_ExitIsolate() { |
| CHECK_ISOLATE(Isolate::Current()); |
| Isolate::SetCurrent(NULL); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_IsolateSetStrictCompilation(bool value) { |
| CHECK_ISOLATE(Isolate::Current()); |
| Isolate* isolate = Isolate::Current(); |
| if (isolate->has_compiled()) { |
| return Api::NewError( |
| "%s expects that the isolate has not yet compiled code.", CURRENT_FUNC); |
| } |
| Isolate::Current()->set_strict_compilation(value); |
| return Api::Null(); |
| } |
| |
| |
| static uint8_t* ApiReallocate(uint8_t* ptr, |
| intptr_t old_size, |
| intptr_t new_size) { |
| return Api::TopScope(Isolate::Current())->zone()->Realloc<uint8_t>( |
| ptr, old_size, new_size); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_CreateSnapshot(uint8_t** buffer, |
| intptr_t* size) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| TIMERSCOPE(isolate, time_creating_snapshot); |
| if (buffer == NULL) { |
| RETURN_NULL_ERROR(buffer); |
| } |
| if (size == NULL) { |
| RETURN_NULL_ERROR(size); |
| } |
| // Finalize all classes if needed. |
| Dart_Handle state = Api::CheckAndFinalizePendingClasses(isolate); |
| if (::Dart_IsError(state)) { |
| return state; |
| } |
| // Since this is only a snapshot the root library should not be set. |
| isolate->object_store()->set_root_library(Library::Handle(isolate)); |
| FullSnapshotWriter writer(buffer, ApiReallocate); |
| writer.WriteFullSnapshot(); |
| *size = writer.BytesWritten(); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_CreateScriptSnapshot(uint8_t** buffer, |
| intptr_t* size) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| TIMERSCOPE(isolate, time_creating_snapshot); |
| if (buffer == NULL) { |
| RETURN_NULL_ERROR(buffer); |
| } |
| if (size == NULL) { |
| RETURN_NULL_ERROR(size); |
| } |
| // Finalize all classes if needed. |
| Dart_Handle state = Api::CheckAndFinalizePendingClasses(isolate); |
| if (::Dart_IsError(state)) { |
| return state; |
| } |
| Library& library = |
| Library::Handle(isolate, isolate->object_store()->root_library()); |
| if (library.IsNull()) { |
| return |
| Api::NewError("%s expects the isolate to have a script loaded in it.", |
| CURRENT_FUNC); |
| } |
| ScriptSnapshotWriter writer(buffer, ApiReallocate); |
| writer.WriteScriptSnapshot(library); |
| *size = writer.BytesWritten(); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT void Dart_InterruptIsolate(Dart_Isolate isolate) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| if (isolate == NULL) { |
| FATAL1("%s expects argument 'isolate' to be non-null.", CURRENT_FUNC); |
| } |
| // TODO(16615): Validate isolate parameter. |
| Isolate* iso = reinterpret_cast<Isolate*>(isolate); |
| iso->ScheduleInterrupts(Isolate::kApiInterrupt); |
| // Can't use Dart_Post() since there isn't a current isolate. |
| Dart_CObject api_null = { Dart_CObject_kNull , { 0 } }; |
| Dart_PostCObject(iso->main_port(), &api_null); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsolateMakeRunnable(Dart_Isolate isolate) { |
| CHECK_NO_ISOLATE(Isolate::Current()); |
| if (isolate == NULL) { |
| FATAL1("%s expects argument 'isolate' to be non-null.", CURRENT_FUNC); |
| } |
| // TODO(16615): Validate isolate parameter. |
| Isolate* iso = reinterpret_cast<Isolate*>(isolate); |
| return iso->MakeRunnable(); |
| } |
| |
| |
| // --- Messages and Ports --- |
| |
| DART_EXPORT void Dart_SetMessageNotifyCallback( |
| Dart_MessageNotifyCallback message_notify_callback) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| isolate->set_message_notify_callback(message_notify_callback); |
| } |
| |
| |
| struct RunLoopData { |
| Monitor* monitor; |
| bool done; |
| }; |
| |
| |
| static void RunLoopDone(uword param) { |
| RunLoopData* data = reinterpret_cast<RunLoopData*>(param); |
| ASSERT(data->monitor != NULL); |
| MonitorLocker ml(data->monitor); |
| data->done = true; |
| ml.Notify(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_RunLoop() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE_SCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| Monitor monitor; |
| MonitorLocker ml(&monitor); |
| { |
| SwitchIsolateScope switch_scope(NULL); |
| |
| RunLoopData data; |
| data.monitor = &monitor; |
| data.done = false; |
| isolate->message_handler()->Run( |
| Dart::thread_pool(), |
| NULL, RunLoopDone, reinterpret_cast<uword>(&data)); |
| while (!data.done) { |
| ml.Wait(); |
| } |
| } |
| if (isolate->object_store()->sticky_error() != Object::null()) { |
| Dart_Handle error = Api::NewHandle(isolate, |
| isolate->object_store()->sticky_error()); |
| isolate->object_store()->clear_sticky_error(); |
| return error; |
| } |
| if (FLAG_print_class_table) { |
| HANDLESCOPE(isolate); |
| isolate->class_table()->Print(); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_HandleMessage() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE_SCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| if (!isolate->message_handler()->HandleNextMessage()) { |
| Dart_Handle error = Api::NewHandle(isolate, |
| isolate->object_store()->sticky_error()); |
| isolate->object_store()->clear_sticky_error(); |
| return error; |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT bool Dart_HandleServiceMessages() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE_SCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| ASSERT(isolate->GetAndClearResumeRequest() == false); |
| isolate->message_handler()->HandleOOBMessages(); |
| bool resume = isolate->GetAndClearResumeRequest(); |
| if (resume && Service::NeedsDebuggerEvents()) { |
| DebuggerEvent resumeEvent(isolate, DebuggerEvent::kIsolateResumed); |
| Service::HandleDebuggerEvent(&resumeEvent); |
| } |
| return resume; |
| } |
| |
| |
| DART_EXPORT bool Dart_HasServiceMessages() { |
| Isolate* isolate = Isolate::Current(); |
| ASSERT(isolate); |
| return isolate->message_handler()->HasOOBMessages(); |
| } |
| |
| |
| DART_EXPORT bool Dart_HasLivePorts() { |
| Isolate* isolate = Isolate::Current(); |
| ASSERT(isolate); |
| return isolate->message_handler()->HasLivePorts(); |
| } |
| |
| |
| static uint8_t* allocator(uint8_t* ptr, intptr_t old_size, intptr_t new_size) { |
| void* new_ptr = realloc(reinterpret_cast<void*>(ptr), new_size); |
| return reinterpret_cast<uint8_t*>(new_ptr); |
| } |
| |
| |
| DART_EXPORT bool Dart_Post(Dart_Port port_id, Dart_Handle handle) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& object = Object::Handle(isolate, Api::UnwrapHandle(handle)); |
| uint8_t* data = NULL; |
| MessageWriter writer(&data, &allocator, false); |
| writer.WriteMessage(object); |
| intptr_t len = writer.BytesWritten(); |
| return PortMap::PostMessage(new Message( |
| port_id, data, len, Message::kNormalPriority)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewSendPort(Dart_Port port_id) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| return Api::NewHandle(isolate, SendPort::New(port_id)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_SendPortGetId(Dart_Handle port, |
| Dart_Port* port_id) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| const SendPort& send_port = Api::UnwrapSendPortHandle(isolate, port); |
| if (send_port.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, port, SendPort); |
| } |
| if (port_id == NULL) { |
| RETURN_NULL_ERROR(port_id); |
| } |
| *port_id = send_port.Id(); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Port Dart_GetMainPortId() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| return isolate->main_port(); |
| } |
| |
| |
| // --- Scopes ---- |
| |
| DART_EXPORT void Dart_EnterScope() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| ApiLocalScope* new_scope = state->reusable_scope(); |
| if (new_scope == NULL) { |
| new_scope = new ApiLocalScope(state->top_scope(), |
| isolate->top_exit_frame_info()); |
| ASSERT(new_scope != NULL); |
| } else { |
| new_scope->Reinit(isolate, |
| state->top_scope(), |
| isolate->top_exit_frame_info()); |
| state->set_reusable_scope(NULL); |
| } |
| state->set_top_scope(new_scope); // New scope is now the top scope. |
| } |
| |
| |
| DART_EXPORT void Dart_ExitScope() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE_SCOPE(isolate); |
| ApiState* state = isolate->api_state(); |
| ApiLocalScope* scope = state->top_scope(); |
| ApiLocalScope* reusable_scope = state->reusable_scope(); |
| state->set_top_scope(scope->previous()); // Reset top scope to previous. |
| if (reusable_scope == NULL) { |
| scope->Reset(isolate); // Reset the old scope which we just exited. |
| state->set_reusable_scope(scope); |
| } else { |
| ASSERT(reusable_scope != scope); |
| delete scope; |
| } |
| } |
| |
| |
| DART_EXPORT uint8_t* Dart_ScopeAllocate(intptr_t size) { |
| Zone* zone; |
| Isolate* isolate = Isolate::Current(); |
| if (isolate != NULL) { |
| ApiState* state = isolate->api_state(); |
| if (state == NULL) return NULL; |
| ApiLocalScope* scope = state->top_scope(); |
| zone = scope->zone(); |
| } else { |
| ApiNativeScope* scope = ApiNativeScope::Current(); |
| if (scope == NULL) return NULL; |
| zone = scope->zone(); |
| } |
| return reinterpret_cast<uint8_t*>(zone->AllocUnsafe(size)); |
| } |
| |
| |
| // --- Objects ---- |
| |
| DART_EXPORT Dart_Handle Dart_Null() { |
| ASSERT(Isolate::Current() != NULL); |
| return Api::Null(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_EmptyString() { |
| ASSERT(Isolate::Current() != NULL); |
| return Api::EmptyString(); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsNull(Dart_Handle object) { |
| return Api::UnwrapHandle(object) == Object::null(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_ObjectEquals(Dart_Handle obj1, Dart_Handle obj2, |
| bool* value) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| const Instance& expected = |
| Instance::CheckedHandle(isolate, Api::UnwrapHandle(obj1)); |
| const Instance& actual = |
| Instance::CheckedHandle(isolate, Api::UnwrapHandle(obj2)); |
| const Object& result = |
| Object::Handle(isolate, DartLibraryCalls::Equals(expected, actual)); |
| if (result.IsBool()) { |
| *value = Bool::Cast(result).value(); |
| return Api::Success(); |
| } else if (result.IsError()) { |
| return Api::NewHandle(isolate, result.raw()); |
| } else { |
| return Api::NewError("Expected boolean result from =="); |
| } |
| } |
| |
| |
| // TODO(iposva): This call actually implements IsInstanceOfClass. |
| // Do we also need a real Dart_IsInstanceOf, which should take an instance |
| // rather than an object? |
| DART_EXPORT Dart_Handle Dart_ObjectIsType(Dart_Handle object, |
| Dart_Handle type, |
| bool* value) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| |
| const Type& type_obj = Api::UnwrapTypeHandle(isolate, type); |
| if (type_obj.IsNull()) { |
| *value = false; |
| RETURN_TYPE_ERROR(isolate, type, Type); |
| } |
| if (!type_obj.IsFinalized()) { |
| return Api::NewError( |
| "%s expects argument 'type' to be a fully resolved type.", |
| CURRENT_FUNC); |
| } |
| if (object == Api::Null()) { |
| *value = false; |
| return Api::Success(); |
| } |
| const Instance& instance = Api::UnwrapInstanceHandle(isolate, object); |
| if (instance.IsNull()) { |
| *value = false; |
| RETURN_TYPE_ERROR(isolate, object, Instance); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| Error& malformed_type_error = Error::Handle(isolate); |
| *value = instance.IsInstanceOf(type_obj, |
| Object::null_type_arguments(), |
| &malformed_type_error); |
| ASSERT(malformed_type_error.IsNull()); // Type was created from a class. |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsInstance(Dart_Handle object) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| REUSABLE_OBJECT_HANDLESCOPE(isolate); |
| Object& ref = isolate->ObjectHandle(); |
| ref = Api::UnwrapHandle(object); |
| return ref.IsInstance(); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsNumber(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return RawObject::IsNumberClassId(Api::ClassId(object)); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsInteger(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return RawObject::IsIntegerClassId(Api::ClassId(object)); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsDouble(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(object) == kDoubleCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsBoolean(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(object) == kBoolCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsString(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return RawObject::IsStringClassId(Api::ClassId(object)); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsStringLatin1(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return RawObject::IsOneByteStringClassId(Api::ClassId(object)); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsExternalString(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return RawObject::IsExternalStringClassId(Api::ClassId(object)); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsList(Dart_Handle object) { |
| if (RawObject::IsBuiltinListClassId(Api::ClassId(object))) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return true; |
| } |
| |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(object)); |
| return GetListInstance(isolate, obj) != Instance::null(); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsMap(Dart_Handle object) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(object)); |
| return GetMapInstance(isolate, obj) != Instance::null(); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsLibrary(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(object) == kLibraryCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsType(Dart_Handle handle) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(handle) == kTypeCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsFunction(Dart_Handle handle) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(handle) == kFunctionCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsVariable(Dart_Handle handle) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(handle) == kFieldCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsTypeVariable(Dart_Handle handle) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(handle) == kTypeParameterCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsClosure(Dart_Handle object) { |
| // We can't use a fast class index check here because there are many |
| // different signature classes for closures. |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ReusableObjectHandleScope reused_obj_handle(isolate); |
| const Instance& closure_obj = |
| Api::UnwrapInstanceHandle(reused_obj_handle, object); |
| return (!closure_obj.IsNull() && closure_obj.IsClosure()); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsTypedData(Dart_Handle handle) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| intptr_t cid = Api::ClassId(handle); |
| return RawObject::IsTypedDataClassId(cid) || |
| RawObject::IsExternalTypedDataClassId(cid) || |
| RawObject::IsTypedDataViewClassId(cid); |
| } |
| |
| |
| DART_EXPORT bool Dart_IsByteBuffer(Dart_Handle handle) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| return Api::ClassId(handle) == kByteBufferCid; |
| } |
| |
| |
| DART_EXPORT bool Dart_IsFuture(Dart_Handle handle) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(handle)); |
| if (obj.IsInstance()) { |
| const Class& future_class = |
| Class::Handle(isolate->object_store()->future_class()); |
| ASSERT(!future_class.IsNull()); |
| const Class& obj_class = Class::Handle(isolate, obj.clazz()); |
| Error& malformed_type_error = Error::Handle(isolate); |
| bool is_future = obj_class.IsSubtypeOf(Object::null_type_arguments(), |
| future_class, |
| Object::null_type_arguments(), |
| &malformed_type_error); |
| ASSERT(malformed_type_error.IsNull()); // Type is a raw Future. |
| return is_future; |
| } |
| return false; |
| } |
| |
| |
| // --- Instances ---- |
| |
| DART_EXPORT Dart_Handle Dart_InstanceGetType(Dart_Handle instance) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(instance)); |
| if (obj.IsNull()) { |
| return Api::NewHandle(isolate, isolate->object_store()->null_type()); |
| } |
| if (!obj.IsInstance()) { |
| RETURN_TYPE_ERROR(isolate, instance, Instance); |
| } |
| const Type& type = Type::Handle(Instance::Cast(obj).GetType()); |
| return Api::NewHandle(isolate, type.Canonicalize()); |
| } |
| |
| |
| // --- Numbers, Integers and Doubles ---- |
| |
| DART_EXPORT Dart_Handle Dart_IntegerFitsIntoInt64(Dart_Handle integer, |
| bool* fits) { |
| // Fast path for Smis and Mints. |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| intptr_t class_id = Api::ClassId(integer); |
| if (class_id == kSmiCid || class_id == kMintCid) { |
| *fits = true; |
| return Api::Success(); |
| } |
| // Slow path for Mints and Bigints. |
| DARTSCOPE(isolate); |
| const Integer& int_obj = Api::UnwrapIntegerHandle(isolate, integer); |
| if (int_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, integer, Integer); |
| } |
| ASSERT(!Bigint::Cast(int_obj).FitsIntoInt64()); |
| *fits = false; |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_IntegerFitsIntoUint64(Dart_Handle integer, |
| bool* fits) { |
| // Fast path for Smis. |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| if (Api::IsSmi(integer)) { |
| *fits = (Api::SmiValue(integer) >= 0); |
| return Api::Success(); |
| } |
| // Slow path for Mints and Bigints. |
| DARTSCOPE(isolate); |
| const Integer& int_obj = Api::UnwrapIntegerHandle(isolate, integer); |
| if (int_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, integer, Integer); |
| } |
| ASSERT(!int_obj.IsSmi()); |
| if (int_obj.IsMint()) { |
| *fits = !int_obj.IsNegative(); |
| } else { |
| *fits = Bigint::Cast(int_obj).FitsIntoUint64(); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewInteger(int64_t value) { |
| // Fast path for Smis. |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| if (Smi::IsValid(value)) { |
| NOHANDLESCOPE(isolate); |
| return Api::NewHandle(isolate, Smi::New(static_cast<intptr_t>(value))); |
| } |
| // Slow path for Mints and Bigints. |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| return Api::NewHandle(isolate, Integer::New(value)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewIntegerFromHexCString(const char* str) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| const String& str_obj = String::Handle(isolate, String::New(str)); |
| return Api::NewHandle(isolate, Integer::New(str_obj)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_IntegerToInt64(Dart_Handle integer, |
| int64_t* value) { |
| // Fast path for Smis. |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| if (Api::IsSmi(integer)) { |
| *value = Api::SmiValue(integer); |
| return Api::Success(); |
| } |
| // Slow path for Mints and Bigints. |
| DARTSCOPE(isolate); |
| const Integer& int_obj = Api::UnwrapIntegerHandle(isolate, integer); |
| if (int_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, integer, Integer); |
| } |
| ASSERT(!int_obj.IsSmi()); |
| if (int_obj.IsMint()) { |
| *value = int_obj.AsInt64Value(); |
| return Api::Success(); |
| } else { |
| const Bigint& bigint = Bigint::Cast(int_obj); |
| if (bigint.FitsIntoInt64()) { |
| *value = bigint.AsInt64Value(); |
| return Api::Success(); |
| } |
| } |
| return Api::NewError("%s: Integer %s cannot be represented as an int64_t.", |
| CURRENT_FUNC, int_obj.ToCString()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_IntegerToUint64(Dart_Handle integer, |
| uint64_t* value) { |
| // Fast path for Smis. |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| if (Api::IsSmi(integer)) { |
| intptr_t smi_value = Api::SmiValue(integer); |
| if (smi_value >= 0) { |
| *value = smi_value; |
| return Api::Success(); |
| } |
| } |
| // Slow path for Mints and Bigints. |
| DARTSCOPE(isolate); |
| const Integer& int_obj = Api::UnwrapIntegerHandle(isolate, integer); |
| if (int_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, integer, Integer); |
| } |
| ASSERT(!int_obj.IsSmi()); |
| if (int_obj.IsMint() && !int_obj.IsNegative()) { |
| *value = int_obj.AsInt64Value(); |
| return Api::Success(); |
| } else { |
| const Bigint& bigint = Bigint::Cast(int_obj); |
| if (bigint.FitsIntoUint64()) { |
| *value = bigint.AsUint64Value(); |
| return Api::Success(); |
| } |
| } |
| return Api::NewError("%s: Integer %s cannot be represented as a uint64_t.", |
| CURRENT_FUNC, int_obj.ToCString()); |
| } |
| |
| |
| static uword BigintAllocate(intptr_t size) { |
| return Api::TopScope(Isolate::Current())->zone()->AllocUnsafe(size); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_IntegerToHexCString(Dart_Handle integer, |
| const char** value) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Integer& int_obj = Api::UnwrapIntegerHandle(isolate, integer); |
| if (int_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, integer, Integer); |
| } |
| if (int_obj.IsSmi() || int_obj.IsMint()) { |
| const Bigint& bigint = Bigint::Handle(isolate, |
| Bigint::NewFromInt64(int_obj.AsInt64Value())); |
| *value = bigint.ToHexCString(BigintAllocate); |
| } else { |
| *value = Bigint::Cast(int_obj).ToHexCString(BigintAllocate); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewDouble(double value) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| return Api::NewHandle(isolate, Double::New(value)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_DoubleValue(Dart_Handle double_obj, |
| double* value) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Double& obj = Api::UnwrapDoubleHandle(isolate, double_obj); |
| if (obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, double_obj, Double); |
| } |
| *value = obj.value(); |
| return Api::Success(); |
| } |
| |
| |
| // --- Booleans ---- |
| |
| DART_EXPORT Dart_Handle Dart_True() { |
| ASSERT(Isolate::Current() != NULL); |
| return Api::True(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_False() { |
| ASSERT(Isolate::Current() != NULL); |
| return Api::False(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewBoolean(bool value) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| return value ? Api::True() : Api::False(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_BooleanValue(Dart_Handle boolean_obj, |
| bool* value) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Bool& obj = Api::UnwrapBoolHandle(isolate, boolean_obj); |
| if (obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, boolean_obj, Bool); |
| } |
| *value = obj.value(); |
| return Api::Success(); |
| } |
| |
| |
| // --- Strings --- |
| |
| |
| DART_EXPORT Dart_Handle Dart_StringLength(Dart_Handle str, intptr_t* len) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ReusableObjectHandleScope reused_obj_handle(isolate); |
| const String& str_obj = Api::UnwrapStringHandle(reused_obj_handle, str); |
| if (str_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, str, String); |
| } |
| *len = str_obj.Length(); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewStringFromCString(const char* str) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (str == NULL) { |
| RETURN_NULL_ERROR(str); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| return Api::NewHandle(isolate, String::New(str)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewStringFromUTF8(const uint8_t* utf8_array, |
| intptr_t length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (utf8_array == NULL && length != 0) { |
| RETURN_NULL_ERROR(utf8_array); |
| } |
| CHECK_LENGTH(length, String::kMaxElements); |
| if (!Utf8::IsValid(utf8_array, length)) { |
| return Api::NewError("%s expects argument 'str' to be valid UTF-8.", |
| CURRENT_FUNC); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| return Api::NewHandle(isolate, String::FromUTF8(utf8_array, length)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewStringFromUTF16(const uint16_t* utf16_array, |
| intptr_t length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (utf16_array == NULL && length != 0) { |
| RETURN_NULL_ERROR(utf16_array); |
| } |
| CHECK_LENGTH(length, String::kMaxElements); |
| CHECK_CALLBACK_STATE(isolate); |
| return Api::NewHandle(isolate, String::FromUTF16(utf16_array, length)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewStringFromUTF32(const int32_t* utf32_array, |
| intptr_t length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (utf32_array == NULL && length != 0) { |
| RETURN_NULL_ERROR(utf32_array); |
| } |
| CHECK_LENGTH(length, String::kMaxElements); |
| CHECK_CALLBACK_STATE(isolate); |
| return Api::NewHandle(isolate, String::FromUTF32(utf32_array, length)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewExternalLatin1String( |
| const uint8_t* latin1_array, |
| intptr_t length, |
| void* peer, |
| Dart_PeerFinalizer cback) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (latin1_array == NULL && length != 0) { |
| RETURN_NULL_ERROR(latin1_array); |
| } |
| CHECK_LENGTH(length, String::kMaxElements); |
| CHECK_CALLBACK_STATE(isolate); |
| return Api::NewHandle(isolate, |
| String::NewExternal(latin1_array, |
| length, |
| peer, |
| cback, |
| SpaceForExternal(isolate, length))); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewExternalUTF16String(const uint16_t* utf16_array, |
| intptr_t length, |
| void* peer, |
| Dart_PeerFinalizer cback) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (utf16_array == NULL && length != 0) { |
| RETURN_NULL_ERROR(utf16_array); |
| } |
| CHECK_LENGTH(length, String::kMaxElements); |
| CHECK_CALLBACK_STATE(isolate); |
| intptr_t bytes = length * sizeof(*utf16_array); |
| return Api::NewHandle(isolate, |
| String::NewExternal(utf16_array, |
| length, |
| peer, |
| cback, |
| SpaceForExternal(isolate, bytes))); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_StringToCString(Dart_Handle object, |
| const char** cstr) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (cstr == NULL) { |
| RETURN_NULL_ERROR(cstr); |
| } |
| const String& str_obj = Api::UnwrapStringHandle(isolate, object); |
| if (str_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, object, String); |
| } |
| intptr_t string_length = Utf8::Length(str_obj); |
| char* res = Api::TopScope(isolate)->zone()->Alloc<char>(string_length + 1); |
| if (res == NULL) { |
| return Api::NewError("Unable to allocate memory"); |
| } |
| const char* string_value = str_obj.ToCString(); |
| memmove(res, string_value, string_length + 1); |
| ASSERT(res[string_length] == '\0'); |
| *cstr = res; |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_StringToUTF8(Dart_Handle str, |
| uint8_t** utf8_array, |
| intptr_t* length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (utf8_array == NULL) { |
| RETURN_NULL_ERROR(utf8_array); |
| } |
| if (length == NULL) { |
| RETURN_NULL_ERROR(length); |
| } |
| const String& str_obj = Api::UnwrapStringHandle(isolate, str); |
| if (str_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, str, String); |
| } |
| intptr_t str_len = Utf8::Length(str_obj); |
| *utf8_array = Api::TopScope(isolate)->zone()->Alloc<uint8_t>(str_len); |
| if (*utf8_array == NULL) { |
| return Api::NewError("Unable to allocate memory"); |
| } |
| str_obj.ToUTF8(*utf8_array, str_len); |
| *length = str_len; |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_StringToLatin1(Dart_Handle str, |
| uint8_t* latin1_array, |
| intptr_t* length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (latin1_array == NULL) { |
| RETURN_NULL_ERROR(latin1_array); |
| } |
| if (length == NULL) { |
| RETURN_NULL_ERROR(length); |
| } |
| const String& str_obj = Api::UnwrapStringHandle(isolate, str); |
| if (str_obj.IsNull() || !str_obj.IsOneByteString()) { |
| RETURN_TYPE_ERROR(isolate, str, String); |
| } |
| intptr_t str_len = str_obj.Length(); |
| intptr_t copy_len = (str_len > *length) ? *length : str_len; |
| |
| // We have already asserted that the string object is a Latin-1 string |
| // so we can copy the characters over using a simple loop. |
| for (intptr_t i = 0; i < copy_len; i++) { |
| latin1_array[i] = str_obj.CharAt(i); |
| } |
| *length = copy_len; |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_StringToUTF16(Dart_Handle str, |
| uint16_t* utf16_array, |
| intptr_t* length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const String& str_obj = Api::UnwrapStringHandle(isolate, str); |
| if (str_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, str, String); |
| } |
| intptr_t str_len = str_obj.Length(); |
| intptr_t copy_len = (str_len > *length) ? *length : str_len; |
| for (intptr_t i = 0; i < copy_len; i++) { |
| utf16_array[i] = str_obj.CharAt(i); |
| } |
| *length = copy_len; |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_StringStorageSize(Dart_Handle str, |
| intptr_t* size) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ReusableObjectHandleScope reused_obj_handle(isolate); |
| const String& str_obj = Api::UnwrapStringHandle(reused_obj_handle, str); |
| if (str_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, str, String); |
| } |
| if (size == NULL) { |
| RETURN_NULL_ERROR(size); |
| } |
| *size = (str_obj.Length() * str_obj.CharSize()); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_MakeExternalString(Dart_Handle str, |
| void* array, |
| intptr_t length, |
| void* peer, |
| Dart_PeerFinalizer cback) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const String& str_obj = Api::UnwrapStringHandle(isolate, str); |
| if (str_obj.IsExternal()) { |
| return str; // String is already an external string. |
| } |
| if (str_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, str, String); |
| } |
| if (array == NULL) { |
| RETURN_NULL_ERROR(array); |
| } |
| intptr_t str_size = (str_obj.Length() * str_obj.CharSize()); |
| if ((length < str_size) || (length > String::kMaxElements)) { |
| return Api::NewError("Dart_MakeExternalString " |
| "expects argument length to be in the range" |
| "[%" Pd "..%" Pd "].", |
| str_size, String::kMaxElements); |
| } |
| if (str_obj.InVMHeap()) { |
| // Since the string object is read only we do not externalize |
| // the string but instead copy the contents of the string into the |
| // specified buffer add the specified peer/cback as a Peer object |
| // to this string. The Api::StringGetPeerHelper function picks up |
| // the peer from the Peer table. |
| intptr_t copy_len = str_obj.Length(); |
| if (str_obj.IsOneByteString()) { |
| ASSERT(length >= copy_len); |
| uint8_t* latin1_array = reinterpret_cast<uint8_t*>(array); |
| for (intptr_t i = 0; i < copy_len; i++) { |
| latin1_array[i] = static_cast<uint8_t>(str_obj.CharAt(i)); |
| } |
| OneByteString::SetPeer(str_obj, peer, cback); |
| } else { |
| ASSERT(str_obj.IsTwoByteString()); |
| ASSERT(length >= (copy_len * str_obj.CharSize())); |
| uint16_t* utf16_array = reinterpret_cast<uint16_t*>(array); |
| for (intptr_t i = 0; i < copy_len; i++) { |
| utf16_array[i] = str_obj.CharAt(i); |
| } |
| TwoByteString::SetPeer(str_obj, peer, cback); |
| } |
| return str; |
| } |
| return Api::NewHandle(isolate, |
| str_obj.MakeExternal(array, length, peer, cback)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_StringGetProperties(Dart_Handle object, |
| intptr_t* char_size, |
| intptr_t* str_len, |
| void** peer) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ReusableObjectHandleScope reused_obj_handle(isolate); |
| const String& str = Api::UnwrapStringHandle(reused_obj_handle, object); |
| if (str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, object, String); |
| } |
| if (str.IsExternal()) { |
| *peer = str.GetPeer(); |
| ASSERT(*peer != NULL); |
| } else { |
| NoGCScope no_gc_scope; |
| *peer = isolate->heap()->GetPeer(str.raw()); |
| } |
| *char_size = str.CharSize(); |
| *str_len = str.Length(); |
| return Api::Success(); |
| } |
| |
| |
| // --- Lists --- |
| |
| DART_EXPORT Dart_Handle Dart_NewList(intptr_t length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_LENGTH(length, Array::kMaxElements); |
| CHECK_CALLBACK_STATE(isolate); |
| return Api::NewHandle(isolate, Array::New(length)); |
| } |
| |
| |
| #define GET_LIST_LENGTH(isolate, type, obj, len) \ |
| type& array = type::Handle(isolate); \ |
| array ^= obj.raw(); \ |
| *len = array.Length(); \ |
| return Api::Success(); \ |
| |
| |
| DART_EXPORT Dart_Handle Dart_ListLength(Dart_Handle list, intptr_t* len) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(list)); |
| if (obj.IsError()) { |
| // Pass through errors. |
| return list; |
| } |
| if (obj.IsTypedData()) { |
| GET_LIST_LENGTH(isolate, TypedData, obj, len); |
| } |
| if (obj.IsArray()) { |
| GET_LIST_LENGTH(isolate, Array, obj, len); |
| } |
| if (obj.IsGrowableObjectArray()) { |
| GET_LIST_LENGTH(isolate, GrowableObjectArray, obj, len); |
| } |
| if (obj.IsExternalTypedData()) { |
| GET_LIST_LENGTH(isolate, ExternalTypedData, obj, len); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| // Now check and handle a dart object that implements the List interface. |
| const Instance& instance = |
| Instance::Handle(isolate, GetListInstance(isolate, obj)); |
| if (instance.IsNull()) { |
| return Api::NewError("Object does not implement the List interface"); |
| } |
| const String& name = String::Handle(Field::GetterName(Symbols::Length())); |
| const int kNumArgs = 1; |
| ArgumentsDescriptor args_desc( |
| Array::Handle(ArgumentsDescriptor::New(kNumArgs))); |
| const Function& function = |
| Function::Handle(isolate, Resolver::ResolveDynamic(instance, |
| name, |
| args_desc)); |
| if (function.IsNull()) { |
| return Api::NewError("List object does not have a 'length' field."); |
| } |
| |
| const Array& args = Array::Handle(isolate, Array::New(kNumArgs)); |
| args.SetAt(0, instance); // Set up the receiver as the first argument. |
| const Object& retval = |
| Object::Handle(isolate, DartEntry::InvokeFunction(function, args)); |
| if (retval.IsSmi()) { |
| *len = Smi::Cast(retval).Value(); |
| return Api::Success(); |
| } else if (retval.IsMint() || retval.IsBigint()) { |
| if (retval.IsMint()) { |
| int64_t mint_value = Mint::Cast(retval).value(); |
| if (mint_value >= kIntptrMin && mint_value <= kIntptrMax) { |
| *len = static_cast<intptr_t>(mint_value); |
| } |
| } else { |
| // Check for a non-canonical Mint range value. |
| ASSERT(retval.IsBigint()); |
| const Bigint& bigint = Bigint::Handle(); |
| if (bigint.FitsIntoInt64()) { |
| int64_t bigint_value = bigint.AsInt64Value(); |
| if (bigint_value >= kIntptrMin && bigint_value <= kIntptrMax) { |
| *len = static_cast<intptr_t>(bigint_value); |
| } |
| } |
| } |
| return Api::NewError("Length of List object is greater than the " |
| "maximum value that 'len' parameter can hold"); |
| } else if (retval.IsError()) { |
| return Api::NewHandle(isolate, retval.raw()); |
| } else { |
| return Api::NewError("Length of List object is not an integer"); |
| } |
| } |
| |
| |
| #define GET_LIST_ELEMENT(isolate, type, obj, index) \ |
| const type& array_obj = type::Cast(obj); \ |
| if ((index >= 0) && (index < array_obj.Length())) { \ |
| return Api::NewHandle(isolate, array_obj.At(index)); \ |
| } \ |
| return Api::NewError("Invalid index passed in to access list element"); \ |
| |
| |
| DART_EXPORT Dart_Handle Dart_ListGetAt(Dart_Handle list, intptr_t index) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(list)); |
| if (obj.IsArray()) { |
| GET_LIST_ELEMENT(isolate, Array, obj, index); |
| } else if (obj.IsGrowableObjectArray()) { |
| GET_LIST_ELEMENT(isolate, GrowableObjectArray, obj, index); |
| } else if (obj.IsError()) { |
| return list; |
| } else { |
| CHECK_CALLBACK_STATE(isolate); |
| // Check and handle a dart object that implements the List interface. |
| const Instance& instance = |
| Instance::Handle(isolate, GetListInstance(isolate, obj)); |
| if (!instance.IsNull()) { |
| return Api::NewHandle(isolate, Send1Arg( |
| instance, |
| Symbols::IndexToken(), |
| Instance::Handle(isolate, Integer::New(index)))); |
| } |
| return Api::NewError("Object does not implement the 'List' interface"); |
| } |
| } |
| |
| |
| #define SET_LIST_ELEMENT(isolate, type, obj, index, value) \ |
| const type& array = type::Cast(obj); \ |
| const Object& value_obj = Object::Handle(isolate, Api::UnwrapHandle(value)); \ |
| if (!value_obj.IsNull() && !value_obj.IsInstance()) { \ |
| RETURN_TYPE_ERROR(isolate, value, Instance); \ |
| } \ |
| if ((index >= 0) && (index < array.Length())) { \ |
| array.SetAt(index, value_obj); \ |
| return Api::Success(); \ |
| } \ |
| return Api::NewError("Invalid index passed in to set list element"); \ |
| |
| |
| DART_EXPORT Dart_Handle Dart_ListSetAt(Dart_Handle list, |
| intptr_t index, |
| Dart_Handle value) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(list)); |
| // If the list is immutable we call into Dart for the indexed setter to |
| // get the unsupported operation exception as the result. |
| if (obj.IsArray() && !Array::Cast(obj).IsImmutable()) { |
| SET_LIST_ELEMENT(isolate, Array, obj, index, value); |
| } else if (obj.IsGrowableObjectArray()) { |
| SET_LIST_ELEMENT(isolate, GrowableObjectArray, obj, index, value); |
| } else if (obj.IsError()) { |
| return list; |
| } else { |
| CHECK_CALLBACK_STATE(isolate); |
| |
| // Check and handle a dart object that implements the List interface. |
| const Instance& instance = |
| Instance::Handle(isolate, GetListInstance(isolate, obj)); |
| if (!instance.IsNull()) { |
| const intptr_t kNumArgs = 3; |
| ArgumentsDescriptor args_desc( |
| Array::Handle(ArgumentsDescriptor::New(kNumArgs))); |
| const Function& function = Function::Handle( |
| isolate, |
| Resolver::ResolveDynamic(instance, |
| Symbols::AssignIndexToken(), |
| args_desc)); |
| if (!function.IsNull()) { |
| const Integer& index_obj = |
| Integer::Handle(isolate, Integer::New(index)); |
| const Object& value_obj = |
| Object::Handle(isolate, Api::UnwrapHandle(value)); |
| if (!value_obj.IsNull() && !value_obj.IsInstance()) { |
| RETURN_TYPE_ERROR(isolate, value, Instance); |
| } |
| const Array& args = Array::Handle(isolate, Array::New(kNumArgs)); |
| args.SetAt(0, instance); |
| args.SetAt(1, index_obj); |
| args.SetAt(2, value_obj); |
| return Api::NewHandle(isolate, DartEntry::InvokeFunction(function, |
| args)); |
| } |
| } |
| return Api::NewError("Object does not implement the 'List' interface"); |
| } |
| } |
| |
| |
| static RawObject* ResolveConstructor(const char* current_func, |
| const Class& cls, |
| const String& class_name, |
| const String& dotted_name, |
| int num_args); |
| |
| |
| static RawObject* ThrowArgumentError(const char* exception_message) { |
| Isolate* isolate = Isolate::Current(); |
| // Lookup the class ArgumentError in dart:core. |
| const String& lib_url = String::Handle(String::New("dart:core")); |
| const String& class_name = String::Handle(String::New("ArgumentError")); |
| const Library& lib = |
| Library::Handle(isolate, Library::LookupLibrary(lib_url)); |
| if (lib.IsNull()) { |
| const String& message = String::Handle( |
| String::NewFormatted("%s: library '%s' not found.", |
| CURRENT_FUNC, lib_url.ToCString())); |
| return ApiError::New(message); |
| } |
| const Class& cls = Class::Handle( |
| isolate, lib.LookupClassAllowPrivate(class_name)); |
| ASSERT(!cls.IsNull()); |
| Object& result = Object::Handle(isolate); |
| String& dot_name = String::Handle(String::New(".")); |
| String& constr_name = String::Handle(String::Concat(class_name, dot_name)); |
| result = ResolveConstructor(CURRENT_FUNC, cls, class_name, constr_name, 1); |
| if (result.IsError()) return result.raw(); |
| ASSERT(result.IsFunction()); |
| Function& constructor = Function::Handle(isolate); |
| constructor ^= result.raw(); |
| if (!constructor.IsGenerativeConstructor()) { |
| const String& message = String::Handle( |
| String::NewFormatted("%s: class '%s' is not a constructor.", |
| CURRENT_FUNC, class_name.ToCString())); |
| return ApiError::New(message); |
| } |
| Instance& exception = Instance::Handle(isolate); |
| exception = Instance::New(cls); |
| const Array& args = Array::Handle(isolate, Array::New(3)); |
| args.SetAt(0, exception); |
| args.SetAt(1, |
| Smi::Handle(isolate, Smi::New(Function::kCtorPhaseAll))); |
| args.SetAt(2, String::Handle(String::New(exception_message))); |
| result = DartEntry::InvokeFunction(constructor, args); |
| if (result.IsError()) return result.raw(); |
| ASSERT(result.IsNull()); |
| |
| if (isolate->top_exit_frame_info() == 0) { |
| // There are no dart frames on the stack so it would be illegal to |
| // throw an exception here. |
| const String& message = String::Handle( |
| String::New("No Dart frames on stack, cannot throw exception")); |
| return ApiError::New(message); |
| } |
| // Unwind all the API scopes till the exit frame before throwing an |
| // exception. |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| const Instance* saved_exception; |
| { |
| NoGCScope no_gc; |
| RawInstance* raw_exception = exception.raw(); |
| state->UnwindScopes(isolate->top_exit_frame_info()); |
| saved_exception = &Instance::Handle(raw_exception); |
| } |
| Exceptions::Throw(isolate, *saved_exception); |
| const String& message = String::Handle( |
| String::New("Exception was not thrown, internal error")); |
| return ApiError::New(message); |
| } |
| |
| // TODO(sgjesse): value should always be smaller then 0xff. Add error handling. |
| #define GET_LIST_ELEMENT_AS_BYTES(isolate, type, obj, native_array, offset, \ |
| length) \ |
| const type& array = type::Cast(obj); \ |
| if (Utils::RangeCheck(offset, length, array.Length())) { \ |
| Object& element = Object::Handle(isolate); \ |
| for (int i = 0; i < length; i++) { \ |
| element = array.At(offset + i); \ |
| if (!element.IsInteger()) { \ |
| return Api::NewHandle( \ |
| isolate, ThrowArgumentError("List contains non-int elements")); \ |
| \ |
| } \ |
| const Integer& integer = Integer::Cast(element); \ |
| native_array[i] = static_cast<uint8_t>(integer.AsInt64Value() & 0xff); \ |
| ASSERT(integer.AsInt64Value() <= 0xff); \ |
| } \ |
| return Api::Success(); \ |
| } \ |
| return Api::NewError("Invalid length passed in to access array elements"); \ |
| |
| template<typename T> |
| static Dart_Handle CopyBytes(const T& array, |
| intptr_t offset, |
| uint8_t* native_array, |
| intptr_t length) { |
| ASSERT(array.ElementSizeInBytes() == 1); |
| NoGCScope no_gc; |
| memmove(native_array, |
| reinterpret_cast<uint8_t*>(array.DataAddr(offset)), |
| length); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_ListGetAsBytes(Dart_Handle list, |
| intptr_t offset, |
| uint8_t* native_array, |
| intptr_t length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(list)); |
| if (obj.IsTypedData()) { |
| const TypedData& array = TypedData::Cast(obj); |
| if (array.ElementSizeInBytes() == 1) { |
| if (!Utils::RangeCheck(offset, length, array.Length())) { |
| return Api::NewError( |
| "Invalid length passed in to access list elements"); |
| } |
| return CopyBytes(array, offset, native_array, length); |
| } |
| } |
| if (obj.IsExternalTypedData()) { |
| const ExternalTypedData& external_array = ExternalTypedData::Cast(obj); |
| if (external_array.ElementSizeInBytes() == 1) { |
| if (!Utils::RangeCheck(offset, length, external_array.Length())) { |
| return Api::NewError( |
| "Invalid length passed in to access list elements"); |
| } |
| return CopyBytes(external_array, offset, native_array, length); |
| } |
| } |
| if (RawObject::IsTypedDataViewClassId(obj.GetClassId())) { |
| const Instance& view = Instance::Cast(obj); |
| if (TypedDataView::ElementSizeInBytes(view) == 1) { |
| intptr_t view_length = Smi::Value(TypedDataView::Length(view)); |
| if (!Utils::RangeCheck(offset, length, view_length)) { |
| return Api::NewError( |
| "Invalid length passed in to access list elements"); |
| } |
| const Instance& data = Instance::Handle(TypedDataView::Data(view)); |
| if (data.IsTypedData()) { |
| const TypedData& array = TypedData::Cast(data); |
| if (array.ElementSizeInBytes() == 1) { |
| intptr_t data_offset = |
| Smi::Value(TypedDataView::OffsetInBytes(view)) + offset; |
| // Range check already performed on the view object. |
| ASSERT(Utils::RangeCheck(data_offset, length, array.Length())); |
| return CopyBytes(array, data_offset, native_array, length); |
| } |
| } |
| } |
| } |
| if (obj.IsArray()) { |
| GET_LIST_ELEMENT_AS_BYTES(isolate, |
| Array, |
| obj, |
| native_array, |
| offset, |
| length); |
| } |
| if (obj.IsGrowableObjectArray()) { |
| GET_LIST_ELEMENT_AS_BYTES(isolate, |
| GrowableObjectArray, |
| obj, |
| native_array, |
| offset, |
| length); |
| } |
| if (obj.IsError()) { |
| return list; |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| // Check and handle a dart object that implements the List interface. |
| const Instance& instance = |
| Instance::Handle(isolate, GetListInstance(isolate, obj)); |
| if (!instance.IsNull()) { |
| const int kNumArgs = 2; |
| ArgumentsDescriptor args_desc( |
| Array::Handle(ArgumentsDescriptor::New(kNumArgs))); |
| const Function& function = Function::Handle( |
| isolate, |
| Resolver::ResolveDynamic(instance, Symbols::IndexToken(), args_desc)); |
| if (!function.IsNull()) { |
| Object& result = Object::Handle(isolate); |
| Integer& intobj = Integer::Handle(isolate); |
| const Array& args = Array::Handle(isolate, Array::New(kNumArgs)); |
| args.SetAt(0, instance); // Set up the receiver as the first argument. |
| for (int i = 0; i < length; i++) { |
| HANDLESCOPE(isolate); |
| intobj = Integer::New(offset + i); |
| args.SetAt(1, intobj); |
| result = DartEntry::InvokeFunction(function, args); |
| if (result.IsError()) { |
| return Api::NewHandle(isolate, result.raw()); |
| } |
| if (!result.IsInteger()) { |
| return Api::NewError("%s expects the argument 'list' to be " |
| "a List of int", CURRENT_FUNC); |
| } |
| const Integer& integer_result = Integer::Cast(result); |
| ASSERT(integer_result.AsInt64Value() <= 0xff); |
| // TODO(hpayer): value should always be smaller then 0xff. Add error |
| // handling. |
| native_array[i] = |
| static_cast<uint8_t>(integer_result.AsInt64Value() & 0xff); |
| } |
| return Api::Success(); |
| } |
| } |
| return Api::NewError("Object does not implement the 'List' interface"); |
| } |
| |
| |
| #define SET_LIST_ELEMENT_AS_BYTES(isolate, type, obj, native_array, offset, \ |
| length) \ |
| const type& array = type::Cast(obj); \ |
| Integer& integer = Integer::Handle(isolate); \ |
| if (Utils::RangeCheck(offset, length, array.Length())) { \ |
| for (int i = 0; i < length; i++) { \ |
| integer = Integer::New(native_array[i]); \ |
| array.SetAt(offset + i, integer); \ |
| } \ |
| return Api::Success(); \ |
| } \ |
| return Api::NewError("Invalid length passed in to set array elements"); \ |
| |
| |
| DART_EXPORT Dart_Handle Dart_ListSetAsBytes(Dart_Handle list, |
| intptr_t offset, |
| uint8_t* native_array, |
| intptr_t length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(list)); |
| if (obj.IsTypedData()) { |
| const TypedData& array = TypedData::Cast(obj); |
| if (array.ElementSizeInBytes() == 1) { |
| if (Utils::RangeCheck(offset, length, array.Length())) { |
| NoGCScope no_gc; |
| memmove(reinterpret_cast<uint8_t*>(array.DataAddr(offset)), |
| native_array, |
| length); |
| return Api::Success(); |
| } |
| return Api::NewError("Invalid length passed in to access list elements"); |
| } |
| } |
| if (obj.IsArray() && !Array::Cast(obj).IsImmutable()) { |
| // If the list is immutable we call into Dart for the indexed setter to |
| // get the unsupported operation exception as the result. |
| SET_LIST_ELEMENT_AS_BYTES(isolate, |
| Array, |
| obj, |
| native_array, |
| offset, |
| length); |
| } |
| if (obj.IsGrowableObjectArray()) { |
| SET_LIST_ELEMENT_AS_BYTES(isolate, |
| GrowableObjectArray, |
| obj, |
| native_array, |
| offset, |
| length); |
| } |
| if (obj.IsError()) { |
| return list; |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| // Check and handle a dart object that implements the List interface. |
| const Instance& instance = |
| Instance::Handle(isolate, GetListInstance(isolate, obj)); |
| if (!instance.IsNull()) { |
| const int kNumArgs = 3; |
| ArgumentsDescriptor args_desc( |
| Array::Handle(ArgumentsDescriptor::New(kNumArgs))); |
| const Function& function = Function::Handle( |
| isolate, |
| Resolver::ResolveDynamic(instance, |
| Symbols::AssignIndexToken(), |
| args_desc)); |
| if (!function.IsNull()) { |
| Integer& indexobj = Integer::Handle(isolate); |
| Integer& valueobj = Integer::Handle(isolate); |
| const Array& args = Array::Handle(isolate, Array::New(kNumArgs)); |
| args.SetAt(0, instance); // Set up the receiver as the first argument. |
| for (int i = 0; i < length; i++) { |
| indexobj = Integer::New(offset + i); |
| valueobj = Integer::New(native_array[i]); |
| args.SetAt(1, indexobj); |
| args.SetAt(2, valueobj); |
| const Object& result = Object::Handle( |
| isolate, DartEntry::InvokeFunction(function, args)); |
| if (result.IsError()) { |
| return Api::NewHandle(isolate, result.raw()); |
| } |
| } |
| return Api::Success(); |
| } |
| } |
| return Api::NewError("Object does not implement the 'List' interface"); |
| } |
| |
| |
| // --- Maps --- |
| |
| DART_EXPORT Dart_Handle Dart_MapGetAt(Dart_Handle map, Dart_Handle key) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(map)); |
| const Instance& instance = |
| Instance::Handle(isolate, GetMapInstance(isolate, obj)); |
| if (!instance.IsNull()) { |
| const Object& key_obj = Object::Handle(Api::UnwrapHandle(key)); |
| if (!(key_obj.IsInstance() || key_obj.IsNull())) { |
| return Api::NewError("Key is not an instance"); |
| } |
| return Api::NewHandle(isolate, Send1Arg( |
| instance, |
| Symbols::IndexToken(), |
| Instance::Cast(key_obj))); |
| } |
| return Api::NewError("Object does not implement the 'Map' interface"); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_MapContainsKey(Dart_Handle map, Dart_Handle key) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(map)); |
| const Instance& instance = |
| Instance::Handle(isolate, GetMapInstance(isolate, obj)); |
| if (!instance.IsNull()) { |
| const Object& key_obj = Object::Handle(Api::UnwrapHandle(key)); |
| if (!(key_obj.IsInstance() || key_obj.IsNull())) { |
| return Api::NewError("Key is not an instance"); |
| } |
| return Api::NewHandle(isolate, Send1Arg( |
| instance, |
| String::Handle(isolate, String::New("containsKey")), |
| Instance::Cast(key_obj))); |
| } |
| return Api::NewError("Object does not implement the 'Map' interface"); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_MapKeys(Dart_Handle map) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| Object& obj = Object::Handle(isolate, Api::UnwrapHandle(map)); |
| Instance& instance = |
| Instance::Handle(isolate, GetMapInstance(isolate, obj)); |
| if (!instance.IsNull()) { |
| const Object& iterator = Object::Handle(Send0Arg( |
| instance, String::Handle(String::New("get:keys")))); |
| if (!iterator.IsInstance()) { |
| return Api::NewHandle(isolate, iterator.raw()); |
| } |
| return Api::NewHandle(isolate, Send0Arg( |
| Instance::Cast(iterator), |
| String::Handle(String::New("toList")))); |
| } |
| return Api::NewError("Object does not implement the 'Map' interface"); |
| } |
| |
| |
| // --- Typed Data --- |
| |
| // Helper method to get the type of a TypedData object. |
| static Dart_TypedData_Type GetType(intptr_t class_id) { |
| Dart_TypedData_Type type; |
| switch (class_id) { |
| case kByteDataViewCid : |
| type = Dart_TypedData_kByteData; |
| break; |
| case kTypedDataInt8ArrayCid : |
| case kTypedDataInt8ArrayViewCid : |
| case kExternalTypedDataInt8ArrayCid : |
| type = Dart_TypedData_kInt8; |
| break; |
| case kTypedDataUint8ArrayCid : |
| case kTypedDataUint8ArrayViewCid : |
| case kExternalTypedDataUint8ArrayCid : |
| type = Dart_TypedData_kUint8; |
| break; |
| case kTypedDataUint8ClampedArrayCid : |
| case kTypedDataUint8ClampedArrayViewCid : |
| case kExternalTypedDataUint8ClampedArrayCid : |
| type = Dart_TypedData_kUint8Clamped; |
| break; |
| case kTypedDataInt16ArrayCid : |
| case kTypedDataInt16ArrayViewCid : |
| case kExternalTypedDataInt16ArrayCid : |
| type = Dart_TypedData_kInt16; |
| break; |
| case kTypedDataUint16ArrayCid : |
| case kTypedDataUint16ArrayViewCid : |
| case kExternalTypedDataUint16ArrayCid : |
| type = Dart_TypedData_kUint16; |
| break; |
| case kTypedDataInt32ArrayCid : |
| case kTypedDataInt32ArrayViewCid : |
| case kExternalTypedDataInt32ArrayCid : |
| type = Dart_TypedData_kInt32; |
| break; |
| case kTypedDataUint32ArrayCid : |
| case kTypedDataUint32ArrayViewCid : |
| case kExternalTypedDataUint32ArrayCid : |
| type = Dart_TypedData_kUint32; |
| break; |
| case kTypedDataInt64ArrayCid : |
| case kTypedDataInt64ArrayViewCid : |
| case kExternalTypedDataInt64ArrayCid : |
| type = Dart_TypedData_kInt64; |
| break; |
| case kTypedDataUint64ArrayCid : |
| case kTypedDataUint64ArrayViewCid : |
| case kExternalTypedDataUint64ArrayCid : |
| type = Dart_TypedData_kUint64; |
| break; |
| case kTypedDataFloat32ArrayCid : |
| case kTypedDataFloat32ArrayViewCid : |
| case kExternalTypedDataFloat32ArrayCid : |
| type = Dart_TypedData_kFloat32; |
| break; |
| case kTypedDataFloat64ArrayCid : |
| case kTypedDataFloat64ArrayViewCid : |
| case kExternalTypedDataFloat64ArrayCid : |
| type = Dart_TypedData_kFloat64; |
| break; |
| case kTypedDataFloat32x4ArrayCid : |
| case kTypedDataFloat32x4ArrayViewCid : |
| case kExternalTypedDataFloat32x4ArrayCid : |
| type = Dart_TypedData_kFloat32x4; |
| break; |
| default: |
| type = Dart_TypedData_kInvalid; |
| break; |
| } |
| return type; |
| } |
| |
| |
| DART_EXPORT Dart_TypedData_Type Dart_GetTypeOfTypedData(Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| intptr_t class_id = Api::ClassId(object); |
| if (RawObject::IsTypedDataClassId(class_id) || |
| RawObject::IsTypedDataViewClassId(class_id)) { |
| return GetType(class_id); |
| } |
| return Dart_TypedData_kInvalid; |
| } |
| |
| |
| DART_EXPORT Dart_TypedData_Type Dart_GetTypeOfExternalTypedData( |
| Dart_Handle object) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| intptr_t class_id = Api::ClassId(object); |
| if (RawObject::IsExternalTypedDataClassId(class_id) || |
| RawObject::IsTypedDataViewClassId(class_id)) { |
| return GetType(class_id); |
| } |
| return Dart_TypedData_kInvalid; |
| } |
| |
| |
| static RawObject* GetByteDataConstructor(Isolate* isolate, |
| const String& constructor_name, |
| intptr_t num_args) { |
| const Library& lib = |
| Library::Handle(isolate->object_store()->typed_data_library()); |
| ASSERT(!lib.IsNull()); |
| const Class& cls = Class::Handle( |
| isolate, lib.LookupClassAllowPrivate(Symbols::ByteData())); |
| ASSERT(!cls.IsNull()); |
| return ResolveConstructor(CURRENT_FUNC, |
| cls, |
| Symbols::ByteData(), |
| constructor_name, |
| num_args); |
| } |
| |
| |
| static Dart_Handle NewByteData(Isolate* isolate, intptr_t length) { |
| CHECK_LENGTH(length, TypedData::MaxElements(kTypedDataInt8ArrayCid)); |
| Object& result = Object::Handle(isolate); |
| result = GetByteDataConstructor(isolate, Symbols::ByteDataDot(), 1); |
| ASSERT(!result.IsNull()); |
| ASSERT(result.IsFunction()); |
| const Function& factory = Function::Cast(result); |
| ASSERT(!factory.IsGenerativeConstructor()); |
| |
| // Create the argument list. |
| const Array& args = Array::Handle(isolate, Array::New(2)); |
| // Factories get type arguments. |
| args.SetAt(0, Object::null_type_arguments()); |
| args.SetAt(1, Smi::Handle(isolate, Smi::New(length))); |
| |
| // Invoke the constructor and return the new object. |
| result = DartEntry::InvokeFunction(factory, args); |
| ASSERT(result.IsInstance() || result.IsNull() || result.IsError()); |
| return Api::NewHandle(isolate, result.raw()); |
| } |
| |
| |
| static Dart_Handle NewTypedData(Isolate* isolate, |
| intptr_t cid, |
| intptr_t length) { |
| CHECK_LENGTH(length, TypedData::MaxElements(cid)); |
| return Api::NewHandle(isolate, TypedData::New(cid, length)); |
| } |
| |
| |
| static Dart_Handle NewExternalTypedData( |
| Isolate* isolate, intptr_t cid, void* data, intptr_t length) { |
| CHECK_LENGTH(length, ExternalTypedData::MaxElements(cid)); |
| intptr_t bytes = length * ExternalTypedData::ElementSizeInBytes(cid); |
| const ExternalTypedData& result = ExternalTypedData::Handle( |
| isolate, |
| ExternalTypedData::New(cid, |
| reinterpret_cast<uint8_t*>(data), |
| length, |
| SpaceForExternal(isolate, bytes))); |
| return Api::NewHandle(isolate, result.raw()); |
| } |
| |
| |
| static Dart_Handle NewExternalByteData( |
| Isolate* isolate, void* data, intptr_t length) { |
| Dart_Handle ext_data = NewExternalTypedData( |
| isolate, kExternalTypedDataUint8ArrayCid, data, length); |
| if (::Dart_IsError(ext_data)) { |
| return ext_data; |
| } |
| Object& result = Object::Handle(isolate); |
| result = GetByteDataConstructor(isolate, Symbols::ByteDataDot_view(), 3); |
| ASSERT(!result.IsNull()); |
| ASSERT(result.IsFunction()); |
| const Function& factory = Function::Cast(result); |
| ASSERT(!factory.IsGenerativeConstructor()); |
| |
| // Create the argument list. |
| const intptr_t num_args = 3; |
| const Array& args = Array::Handle(isolate, Array::New(num_args + 1)); |
| // Factories get type arguments. |
| args.SetAt(0, Object::null_type_arguments()); |
| const ExternalTypedData& array = |
| Api::UnwrapExternalTypedDataHandle(isolate, ext_data); |
| args.SetAt(1, array); |
| Smi& smi = Smi::Handle(isolate); |
| smi = Smi::New(0); |
| args.SetAt(2, smi); |
| smi = Smi::New(length); |
| args.SetAt(3, smi); |
| |
| // Invoke the constructor and return the new object. |
| result = DartEntry::InvokeFunction(factory, args); |
| ASSERT(result.IsNull() || result.IsInstance() || result.IsError()); |
| return Api::NewHandle(isolate, result.raw()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewTypedData(Dart_TypedData_Type type, |
| intptr_t length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| switch (type) { |
| case Dart_TypedData_kByteData : |
| return NewByteData(isolate, length); |
| case Dart_TypedData_kInt8 : |
| return NewTypedData(isolate, kTypedDataInt8ArrayCid, length); |
| case Dart_TypedData_kUint8 : |
| return NewTypedData(isolate, kTypedDataUint8ArrayCid, length); |
| case Dart_TypedData_kUint8Clamped : |
| return NewTypedData(isolate, kTypedDataUint8ClampedArrayCid, length); |
| case Dart_TypedData_kInt16 : |
| return NewTypedData(isolate, kTypedDataInt16ArrayCid, length); |
| case Dart_TypedData_kUint16 : |
| return NewTypedData(isolate, kTypedDataUint16ArrayCid, length); |
| case Dart_TypedData_kInt32 : |
| return NewTypedData(isolate, kTypedDataInt32ArrayCid, length); |
| case Dart_TypedData_kUint32 : |
| return NewTypedData(isolate, kTypedDataUint32ArrayCid, length); |
| case Dart_TypedData_kInt64 : |
| return NewTypedData(isolate, kTypedDataInt64ArrayCid, length); |
| case Dart_TypedData_kUint64 : |
| return NewTypedData(isolate, kTypedDataUint64ArrayCid, length); |
| case Dart_TypedData_kFloat32 : |
| return NewTypedData(isolate, kTypedDataFloat32ArrayCid, length); |
| case Dart_TypedData_kFloat64 : |
| return NewTypedData(isolate, kTypedDataFloat64ArrayCid, length); |
| case Dart_TypedData_kFloat32x4: |
| return NewTypedData(isolate, kTypedDataFloat32x4ArrayCid, length); |
| default: |
| return Api::NewError("%s expects argument 'type' to be of 'TypedData'", |
| CURRENT_FUNC); |
| } |
| UNREACHABLE(); |
| return Api::Null(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewExternalTypedData( |
| Dart_TypedData_Type type, |
| void* data, |
| intptr_t length) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| if (data == NULL && length != 0) { |
| RETURN_NULL_ERROR(data); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| switch (type) { |
| case Dart_TypedData_kByteData: |
| return NewExternalByteData(isolate, data, length); |
| case Dart_TypedData_kInt8: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataInt8ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kUint8: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataUint8ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kUint8Clamped: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataUint8ClampedArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kInt16: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataInt16ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kUint16: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataUint16ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kInt32: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataInt32ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kUint32: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataUint32ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kInt64: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataInt64ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kUint64: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataUint64ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kFloat32: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataFloat32ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kFloat64: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataFloat64ArrayCid, |
| data, |
| length); |
| case Dart_TypedData_kFloat32x4: |
| return NewExternalTypedData(isolate, |
| kExternalTypedDataFloat32x4ArrayCid, |
| data, |
| length); |
| default: |
| return Api::NewError("%s expects argument 'type' to be of" |
| " 'external TypedData'", CURRENT_FUNC); |
| } |
| UNREACHABLE(); |
| return Api::Null(); |
| } |
| |
| |
| static RawObject* GetByteBufferConstructor(Isolate* isolate, |
| const String& class_name, |
| const String& constructor_name, |
| intptr_t num_args) { |
| const Library& lib = |
| Library::Handle(isolate->object_store()->typed_data_library()); |
| ASSERT(!lib.IsNull()); |
| const Class& cls = Class::Handle( |
| isolate, lib.LookupClassAllowPrivate(class_name)); |
| ASSERT(!cls.IsNull()); |
| return ResolveConstructor(CURRENT_FUNC, |
| cls, |
| class_name, |
| constructor_name, |
| num_args); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_NewByteBuffer(Dart_Handle typed_data) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| intptr_t class_id = Api::ClassId(typed_data); |
| if (!RawObject::IsExternalTypedDataClassId(class_id) && |
| !RawObject::IsTypedDataViewClassId(class_id) && |
| !RawObject::IsTypedDataClassId(class_id)) { |
| RETURN_TYPE_ERROR(isolate, typed_data, 'TypedData'); |
| } |
| Object& result = Object::Handle(isolate); |
| result = GetByteBufferConstructor(isolate, |
| Symbols::_ByteBuffer(), |
| Symbols::_ByteBufferDot_New(), |
| 1); |
| ASSERT(!result.IsNull()); |
| ASSERT(result.IsFunction()); |
| const Function& factory = Function::Cast(result); |
| ASSERT(!factory.IsGenerativeConstructor()); |
| |
| // Create the argument list. |
| const Array& args = Array::Handle(isolate, Array::New(2)); |
| // Factories get type arguments. |
| args.SetAt(0, Object::null_type_arguments()); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(typed_data)); |
| args.SetAt(1, obj); |
| |
| // Invoke the factory constructor and return the new object. |
| result = DartEntry::InvokeFunction(factory, args); |
| ASSERT(result.IsInstance() || result.IsNull() || result.IsError()); |
| return Api::NewHandle(isolate, result.raw()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_TypedDataAcquireData(Dart_Handle object, |
| Dart_TypedData_Type* type, |
| void** data, |
| intptr_t* len) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| intptr_t class_id = Api::ClassId(object); |
| if (!RawObject::IsExternalTypedDataClassId(class_id) && |
| !RawObject::IsTypedDataViewClassId(class_id) && |
| !RawObject::IsTypedDataClassId(class_id)) { |
| RETURN_TYPE_ERROR(isolate, object, 'TypedData'); |
| } |
| if (type == NULL) { |
| RETURN_NULL_ERROR(type); |
| } |
| if (data == NULL) { |
| RETURN_NULL_ERROR(data); |
| } |
| if (len == NULL) { |
| RETURN_NULL_ERROR(len); |
| } |
| // Get the type of typed data object. |
| *type = GetType(class_id); |
| // If it is an external typed data object just return the data field. |
| if (RawObject::IsExternalTypedDataClassId(class_id)) { |
| const ExternalTypedData& obj = |
| Api::UnwrapExternalTypedDataHandle(isolate, object); |
| ASSERT(!obj.IsNull()); |
| *len = obj.Length(); |
| *data = obj.DataAddr(0); |
| } else if (RawObject::IsTypedDataClassId(class_id)) { |
| // Regular typed data object, set up some GC and API callback guards. |
| const TypedData& obj = Api::UnwrapTypedDataHandle(isolate, object); |
| ASSERT(!obj.IsNull()); |
| *len = obj.Length(); |
| isolate->IncrementNoGCScopeDepth(); |
| START_NO_CALLBACK_SCOPE(isolate); |
| *data = obj.DataAddr(0); |
| } else { |
| ASSERT(RawObject::IsTypedDataViewClassId(class_id)); |
| const Instance& view_obj = Api::UnwrapInstanceHandle(isolate, object); |
| ASSERT(!view_obj.IsNull()); |
| Smi& val = Smi::Handle(); |
| val ^= TypedDataView::Length(view_obj); |
| *len = val.Value(); |
| val ^= TypedDataView::OffsetInBytes(view_obj); |
| intptr_t offset_in_bytes = val.Value(); |
| const Instance& obj = Instance::Handle(TypedDataView::Data(view_obj)); |
| isolate->IncrementNoGCScopeDepth(); |
| START_NO_CALLBACK_SCOPE(isolate); |
| if (TypedData::IsTypedData(obj)) { |
| const TypedData& data_obj = TypedData::Cast(obj); |
| *data = data_obj.DataAddr(offset_in_bytes); |
| } else { |
| ASSERT(ExternalTypedData::IsExternalTypedData(obj)); |
| const ExternalTypedData& data_obj = ExternalTypedData::Cast(obj); |
| *data = data_obj.DataAddr(offset_in_bytes); |
| } |
| } |
| if (FLAG_verify_acquired_data) { |
| // For now, we just verify that acquire/release are properly matched |
| // per object. |
| // TODO(koda): Copy internal data to/from a side buffer which is unmapped |
| // on release to catch use-after-release bugs. |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(object)); |
| WeakTable* table = isolate->api_state()->acquired_table(); |
| intptr_t current = table->GetValue(obj.raw()); |
| if (current != 0) { |
| ASSERT(current == 1); |
| return Api::NewError("Data was already acquired for this object."); |
| } |
| table->SetValue(obj.raw(), 1); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_TypedDataReleaseData(Dart_Handle object) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| intptr_t class_id = Api::ClassId(object); |
| if (!RawObject::IsExternalTypedDataClassId(class_id) && |
| !RawObject::IsTypedDataViewClassId(class_id) && |
| !RawObject::IsTypedDataClassId(class_id)) { |
| RETURN_TYPE_ERROR(isolate, object, 'TypedData'); |
| } |
| if (!RawObject::IsExternalTypedDataClassId(class_id)) { |
| isolate->DecrementNoGCScopeDepth(); |
| END_NO_CALLBACK_SCOPE(isolate); |
| } |
| if (FLAG_verify_acquired_data) { |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(object)); |
| WeakTable* table = isolate->api_state()->acquired_table(); |
| intptr_t current = table->GetValue(obj.raw()); |
| if (current != 1) { |
| ASSERT(current == 0); |
| return Api::NewError("Data was not acquired for this object."); |
| } |
| // Delete entry from table. |
| table->SetValue(obj.raw(), 0); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetDataFromByteBuffer(Dart_Handle object) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| intptr_t class_id = Api::ClassId(object); |
| if (class_id != kByteBufferCid) { |
| RETURN_TYPE_ERROR(isolate, object, 'ByteBuffer'); |
| } |
| const Instance& instance = Api::UnwrapInstanceHandle(isolate, object); |
| ASSERT(!instance.IsNull()); |
| return Api::NewHandle(isolate, ByteBuffer::Data(instance)); |
| } |
| |
| |
| // --- Invoking Constructors, Methods, and Field accessors --- |
| |
| static RawObject* ResolveConstructor(const char* current_func, |
| const Class& cls, |
| const String& class_name, |
| const String& constr_name, |
| int num_args) { |
| // The constructor must be present in the interface. |
| const Function& constructor = |
| Function::Handle(cls.LookupFunctionAllowPrivate(constr_name)); |
| if (constructor.IsNull() || |
| (!constructor.IsGenerativeConstructor() && !constructor.IsFactory())) { |
| const String& lookup_class_name = String::Handle(cls.Name()); |
| if (!class_name.Equals(lookup_class_name)) { |
| // When the class name used to build the constructor name is |
| // different than the name of the class in which we are doing |
| // the lookup, it can be confusing to the user to figure out |
| // what's going on. Be a little more explicit for these error |
| // messages. |
| const String& message = String::Handle( |
| String::NewFormatted( |
| "%s: could not find factory '%s' in class '%s'.", |
| current_func, |
| constr_name.ToCString(), |
| lookup_class_name.ToCString())); |
| return ApiError::New(message); |
| } else { |
| const String& message = String::Handle( |
| String::NewFormatted("%s: could not find constructor '%s'.", |
| current_func, constr_name.ToCString())); |
| return ApiError::New(message); |
| } |
| } |
| int extra_args = (constructor.IsGenerativeConstructor() ? 2 : 1); |
| String& error_message = String::Handle(); |
| if (!constructor.AreValidArgumentCounts(num_args + extra_args, |
| 0, |
| &error_message)) { |
| const String& message = String::Handle( |
| String::NewFormatted("%s: wrong argument count for " |
| "constructor '%s': %s.", |
| current_func, |
| constr_name.ToCString(), |
| error_message.ToCString())); |
| return ApiError::New(message); |
| } |
| return constructor.raw(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_New(Dart_Handle type, |
| Dart_Handle constructor_name, |
| int number_of_arguments, |
| Dart_Handle* arguments) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| Object& result = Object::Handle(isolate); |
| |
| if (number_of_arguments < 0) { |
| return Api::NewError( |
| "%s expects argument 'number_of_arguments' to be non-negative.", |
| CURRENT_FUNC); |
| } |
| |
| // Get the class to instantiate. |
| Object& unchecked_type = Object::Handle(Api::UnwrapHandle(type)); |
| if (unchecked_type.IsNull() || !unchecked_type.IsType()) { |
| RETURN_TYPE_ERROR(isolate, type, Type); |
| } |
| Type& type_obj = Type::Handle(); |
| type_obj ^= unchecked_type.raw(); |
| if (!type_obj.IsFinalized()) { |
| return Api::NewError( |
| "%s expects argument 'type' to be a fully resolved type.", |
| CURRENT_FUNC); |
| } |
| Class& cls = Class::Handle(isolate, type_obj.type_class()); |
| TypeArguments& type_arguments = |
| TypeArguments::Handle(isolate, type_obj.arguments()); |
| |
| const String& base_constructor_name = String::Handle(isolate, cls.Name()); |
| |
| // And get the name of the constructor to invoke. |
| String& dot_name = String::Handle(isolate); |
| result = Api::UnwrapHandle(constructor_name); |
| if (result.IsNull()) { |
| dot_name = Symbols::Dot().raw(); |
| } else if (result.IsString()) { |
| dot_name = String::Concat(Symbols::Dot(), String::Cast(result)); |
| } else { |
| RETURN_TYPE_ERROR(isolate, constructor_name, String); |
| } |
| |
| // Resolve the constructor. |
| String& constr_name = |
| String::Handle(String::Concat(base_constructor_name, dot_name)); |
| result = ResolveConstructor("Dart_New", |
| cls, |
| base_constructor_name, |
| constr_name, |
| number_of_arguments); |
| if (result.IsError()) { |
| return Api::NewHandle(isolate, result.raw()); |
| } |
| ASSERT(result.IsFunction()); |
| Function& constructor = Function::Handle(isolate); |
| constructor ^= result.raw(); |
| |
| Instance& new_object = Instance::Handle(isolate); |
| if (constructor.IsRedirectingFactory()) { |
| ClassFinalizer::ResolveRedirectingFactory(cls, constructor); |
| Type& redirect_type = Type::Handle(constructor.RedirectionType()); |
| constructor = constructor.RedirectionTarget(); |
| if (constructor.IsNull()) { |
| ASSERT(redirect_type.IsMalformed()); |
| return Api::NewHandle(isolate, redirect_type.error()); |
| } |
| |
| if (!redirect_type.IsInstantiated()) { |
| // The type arguments of the redirection type are instantiated from the |
| // type arguments of the type argument. |
| Error& bound_error = Error::Handle(); |
| redirect_type ^= redirect_type.InstantiateFrom(type_arguments, |
| &bound_error); |
| if (!bound_error.IsNull()) { |
| return Api::NewHandle(isolate, bound_error.raw()); |
| } |
| redirect_type ^= redirect_type.Canonicalize(); |
| } |
| |
| type_obj = redirect_type.raw(); |
| type_arguments = redirect_type.arguments(); |
| |
| cls = type_obj.type_class(); |
| } |
| if (constructor.IsGenerativeConstructor()) { |
| // Create the new object. |
| new_object = Instance::New(cls); |
| } |
| |
| // Create the argument list. |
| intptr_t arg_index = 0; |
| int extra_args = (constructor.IsGenerativeConstructor() ? 2 : 1); |
| const Array& args = |
| Array::Handle(isolate, Array::New(number_of_arguments + extra_args)); |
| if (constructor.IsGenerativeConstructor()) { |
| // Constructors get the uninitialized object and a constructor phase. |
| if (!type_arguments.IsNull()) { |
| // The type arguments will be null if the class has no type parameters, in |
| // which case the following call would fail because there is no slot |
| // reserved in the object for the type vector. |
| new_object.SetTypeArguments(type_arguments); |
| } |
| args.SetAt(arg_index++, new_object); |
| args.SetAt(arg_index++, |
| Smi::Handle(isolate, Smi::New(Function::kCtorPhaseAll))); |
| } else { |
| // Factories get type arguments. |
| args.SetAt(arg_index++, type_arguments); |
| } |
| Object& argument = Object::Handle(isolate); |
| for (int i = 0; i < number_of_arguments; i++) { |
| argument = Api::UnwrapHandle(arguments[i]); |
| if (!argument.IsNull() && !argument.IsInstance()) { |
| if (argument.IsError()) { |
| return Api::NewHandle(isolate, argument.raw()); |
| } else { |
| return Api::NewError( |
| "%s expects arguments[%d] to be an Instance handle.", |
| CURRENT_FUNC, i); |
| } |
| } |
| args.SetAt(arg_index++, argument); |
| } |
| |
| // Invoke the constructor and return the new object. |
| result = DartEntry::InvokeFunction(constructor, args); |
| if (result.IsError()) { |
| return Api::NewHandle(isolate, result.raw()); |
| } |
| |
| if (constructor.IsGenerativeConstructor()) { |
| ASSERT(result.IsNull()); |
| } else { |
| ASSERT(result.IsNull() || result.IsInstance()); |
| new_object ^= result.raw(); |
| } |
| return Api::NewHandle(isolate, new_object.raw()); |
| } |
| |
| |
| static RawInstance* AllocateObject(Isolate* isolate, const Class& cls) { |
| if (!cls.is_fields_marked_nullable()) { |
| // Mark all fields as nullable. |
| Class& iterate_cls = Class::Handle(isolate, cls.raw()); |
| Field& field = Field::Handle(isolate); |
| Array& fields = Array::Handle(isolate); |
| while (!iterate_cls.IsNull()) { |
| ASSERT(iterate_cls.is_finalized()); |
| iterate_cls.set_is_fields_marked_nullable(); |
| fields = iterate_cls.fields(); |
| iterate_cls = iterate_cls.SuperClass(); |
| for (int field_num = 0; field_num < fields.Length(); field_num++) { |
| field ^= fields.At(field_num); |
| if (field.is_static()) { |
| continue; |
| } |
| field.RecordStore(Object::null_object()); |
| } |
| } |
| } |
| |
| // Allocate an object for the given class. |
| return Instance::New(cls); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_Allocate(Dart_Handle type) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| const Type& type_obj = Api::UnwrapTypeHandle(isolate, type); |
| // Get the class to instantiate. |
| if (type_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, type, Type); |
| } |
| const Class& cls = Class::Handle(isolate, type_obj.type_class()); |
| const Error& error = Error::Handle(isolate, cls.EnsureIsFinalized(isolate)); |
| if (!error.IsNull()) { |
| // An error occurred, return error object. |
| return Api::NewHandle(isolate, error.raw()); |
| } |
| return Api::NewHandle(isolate, AllocateObject(isolate, cls)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_AllocateWithNativeFields( |
| Dart_Handle type, |
| intptr_t num_native_fields, |
| const intptr_t* native_fields) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| const Type& type_obj = Api::UnwrapTypeHandle(isolate, type); |
| // Get the class to instantiate. |
| if (type_obj.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, type, Type); |
| } |
| if (native_fields == NULL) { |
| RETURN_NULL_ERROR(native_fields); |
| } |
| const Class& cls = Class::Handle(isolate, type_obj.type_class()); |
| const Error& error = Error::Handle(isolate, cls.EnsureIsFinalized(isolate)); |
| if (!error.IsNull()) { |
| // An error occurred, return error object. |
| return Api::NewHandle(isolate, error.raw()); |
| } |
| if (num_native_fields != cls.num_native_fields()) { |
| return Api::NewError( |
| "%s: invalid number of native fields %" Pd " passed in, expected %d", |
| CURRENT_FUNC, num_native_fields, cls.num_native_fields()); |
| } |
| const Instance& instance = Instance::Handle(isolate, |
| AllocateObject(isolate, cls)); |
| instance.SetNativeFields(num_native_fields, native_fields); |
| return Api::NewHandle(isolate, instance.raw()); |
| } |
| |
| |
| static Dart_Handle SetupArguments(Isolate* isolate, |
| int num_args, |
| Dart_Handle* arguments, |
| int extra_args, |
| Array* args) { |
| // Check for malformed arguments in the arguments list. |
| *args = Array::New(num_args + extra_args); |
| Object& arg = Object::Handle(isolate); |
| for (int i = 0; i < num_args; i++) { |
| arg = Api::UnwrapHandle(arguments[i]); |
| if (!arg.IsNull() && !arg.IsInstance()) { |
| *args = Array::null(); |
| if (arg.IsError()) { |
| return Api::NewHandle(isolate, arg.raw()); |
| } else { |
| return Api::NewError( |
| "%s expects arguments[%d] to be an Instance handle.", |
| "Dart_Invoke", i); |
| } |
| } |
| args->SetAt((i + extra_args), arg); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_InvokeConstructor(Dart_Handle object, |
| Dart_Handle name, |
| int number_of_arguments, |
| Dart_Handle* arguments) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| if (number_of_arguments < 0) { |
| return Api::NewError( |
| "%s expects argument 'number_of_arguments' to be non-negative.", |
| CURRENT_FUNC); |
| } |
| const String& constructor_name = Api::UnwrapStringHandle(isolate, name); |
| if (constructor_name.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, name, String); |
| } |
| const Instance& instance = Api::UnwrapInstanceHandle(isolate, object); |
| if (instance.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, object, Instance); |
| } |
| |
| // Since we have allocated an object it would mean that the type |
| // is finalized. |
| // TODO(asiva): How do we ensure that a constructor is not called more than |
| // once for the same object. |
| |
| // Construct name of the constructor to invoke. |
| const Type& type_obj = Type::Handle(isolate, instance.GetType()); |
| const Class& cls = Class::Handle(isolate, type_obj.type_class()); |
| const String& class_name = String::Handle(isolate, cls.Name()); |
| const Array& strings = Array::Handle(Array::New(3)); |
| strings.SetAt(0, class_name); |
| strings.SetAt(1, Symbols::Dot()); |
| strings.SetAt(2, constructor_name); |
| const String& dot_name = String::Handle(isolate, String::ConcatAll(strings)); |
| const TypeArguments& type_arguments = |
| TypeArguments::Handle(isolate, type_obj.arguments()); |
| const Function& constructor = |
| Function::Handle(isolate, cls.LookupFunctionAllowPrivate(dot_name)); |
| const int extra_args = 2; |
| if (!constructor.IsNull() && |
| constructor.IsGenerativeConstructor() && |
| constructor.AreValidArgumentCounts(number_of_arguments + extra_args, |
| 0, |
| NULL)) { |
| // Create the argument list. |
| // Constructors get the uninitialized object and a constructor phase. |
| if (!type_arguments.IsNull()) { |
| // The type arguments will be null if the class has no type |
| // parameters, in which case the following call would fail |
| // because there is no slot reserved in the object for the |
| // type vector. |
| instance.SetTypeArguments(type_arguments); |
| } |
| Dart_Handle result; |
| Array& args = Array::Handle(isolate); |
| result = SetupArguments(isolate, |
| number_of_arguments, |
| arguments, |
| extra_args, |
| &args); |
| if (!::Dart_IsError(result)) { |
| args.SetAt(0, instance); |
| args.SetAt(1, Smi::Handle(isolate, Smi::New(Function::kCtorPhaseAll))); |
| const Object& retval = Object::Handle( |
| isolate, |
| DartEntry::InvokeFunction(constructor, args)); |
| if (retval.IsError()) { |
| result = Api::NewHandle(isolate, retval.raw()); |
| } else { |
| result = Api::NewHandle(isolate, instance.raw()); |
| } |
| } |
| return result; |
| } |
| return Api::NewError( |
| "%s expects argument 'name' to be a valid constructor.", |
| CURRENT_FUNC); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_Invoke(Dart_Handle target, |
| Dart_Handle name, |
| int number_of_arguments, |
| Dart_Handle* arguments) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| // TODO(turnidge): This is a bit simplistic. It overcounts when |
| // other operations (gc, compilation) are active. |
| TIMERSCOPE(isolate, time_dart_execution); |
| |
| isolate->set_has_compiled(true); |
| |
| const String& function_name = Api::UnwrapStringHandle(isolate, name); |
| if (function_name.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, name, String); |
| } |
| if (number_of_arguments < 0) { |
| return Api::NewError( |
| "%s expects argument 'number_of_arguments' to be non-negative.", |
| CURRENT_FUNC); |
| } |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(target)); |
| if (obj.IsError()) { |
| return target; |
| } |
| Dart_Handle result; |
| Array& args = Array::Handle(isolate); |
| if (obj.IsType()) { |
| if (!Type::Cast(obj).IsFinalized()) { |
| return Api::NewError( |
| "%s expects argument 'target' to be a fully resolved type.", |
| CURRENT_FUNC); |
| } |
| |
| const Class& cls = Class::Handle(isolate, Type::Cast(obj).type_class()); |
| const Function& function = Function::Handle( |
| isolate, |
| Resolver::ResolveStaticAllowPrivate(cls, |
| function_name, |
| number_of_arguments, |
| Object::empty_array())); |
| if (function.IsNull()) { |
| const String& cls_name = String::Handle(isolate, cls.Name()); |
| return Api::NewError("%s: did not find static method '%s.%s'.", |
| CURRENT_FUNC, |
| cls_name.ToCString(), |
| function_name.ToCString()); |
| } |
| // Setup args and check for malformed arguments in the arguments list. |
| result = SetupArguments(isolate, number_of_arguments, arguments, 0, &args); |
| if (!::Dart_IsError(result)) { |
| result = Api::NewHandle(isolate, |
| DartEntry::InvokeFunction(function, args)); |
| } |
| return result; |
| } else if (obj.IsNull() || obj.IsInstance()) { |
| // Since we have allocated an object it would mean that the type of the |
| // receiver is already resolved and finalized, hence it is not necessary |
| // to check here. |
| Instance& instance = Instance::Handle(isolate); |
| instance ^= obj.raw(); |
| ArgumentsDescriptor args_desc( |
| Array::Handle(ArgumentsDescriptor::New(number_of_arguments + 1))); |
| const Function& function = Function::Handle( |
| isolate, |
| Resolver::ResolveDynamic(instance, function_name, args_desc)); |
| if (function.IsNull()) { |
| // Setup args and check for malformed arguments in the arguments list. |
| result = SetupArguments(isolate, |
| number_of_arguments, |
| arguments, |
| 1, |
| &args); |
| if (!::Dart_IsError(result)) { |
| args.SetAt(0, instance); |
| const Array& args_descriptor = |
| Array::Handle(ArgumentsDescriptor::New(args.Length())); |
| result = Api::NewHandle(isolate, |
| DartEntry::InvokeNoSuchMethod(instance, |
| function_name, |
| args, |
| args_descriptor)); |
| } |
| return result; |
| } |
| // Setup args and check for malformed arguments in the arguments list. |
| result = SetupArguments(isolate, number_of_arguments, arguments, 1, &args); |
| if (!::Dart_IsError(result)) { |
| args.SetAt(0, instance); |
| result = Api::NewHandle(isolate, |
| DartEntry::InvokeFunction(function, args)); |
| } |
| return result; |
| } else if (obj.IsLibrary()) { |
| // Check whether class finalization is needed. |
| const Library& lib = Library::Cast(obj); |
| |
| // Check that the library is loaded. |
| if (!lib.Loaded()) { |
| return Api::NewError( |
| "%s expects library argument 'target' to be loaded.", |
| CURRENT_FUNC); |
| } |
| |
| const Function& function = |
| Function::Handle(isolate, |
| lib.LookupFunctionAllowPrivate(function_name)); |
| if (function.IsNull()) { |
| return Api::NewError("%s: did not find top-level function '%s'.", |
| CURRENT_FUNC, |
| function_name.ToCString()); |
| } |
| // LookupFunctionAllowPrivate does not check argument arity, so we |
| // do it here. |
| String& error_message = String::Handle(); |
| if (!function.AreValidArgumentCounts(number_of_arguments, |
| 0, |
| &error_message)) { |
| return Api::NewError("%s: wrong argument count for function '%s': %s.", |
| CURRENT_FUNC, |
| function_name.ToCString(), |
| error_message.ToCString()); |
| } |
| // Setup args and check for malformed arguments in the arguments list. |
| result = SetupArguments(isolate, number_of_arguments, arguments, 0, &args); |
| if (!::Dart_IsError(result)) { |
| result = Api::NewHandle(isolate, |
| DartEntry::InvokeFunction(function, args)); |
| } |
| return result; |
| } else { |
| return Api::NewError( |
| "%s expects argument 'target' to be an object, type, or library.", |
| CURRENT_FUNC); |
| } |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_InvokeClosure(Dart_Handle closure, |
| int number_of_arguments, |
| Dart_Handle* arguments) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| const Instance& closure_obj = Api::UnwrapInstanceHandle(isolate, closure); |
| if (closure_obj.IsNull() || !closure_obj.IsCallable(NULL)) { |
| RETURN_TYPE_ERROR(isolate, closure, Instance); |
| } |
| if (number_of_arguments < 0) { |
| return Api::NewError( |
| "%s expects argument 'number_of_arguments' to be non-negative.", |
| CURRENT_FUNC); |
| } |
| |
| // Set up arguments to include the closure as the first argument. |
| const Array& args = Array::Handle(isolate, |
| Array::New(number_of_arguments + 1)); |
| Object& obj = Object::Handle(isolate); |
| args.SetAt(0, closure_obj); |
| for (int i = 0; i < number_of_arguments; i++) { |
| obj = Api::UnwrapHandle(arguments[i]); |
| if (!obj.IsNull() && !obj.IsInstance()) { |
| RETURN_TYPE_ERROR(isolate, arguments[i], Instance); |
| } |
| args.SetAt(i + 1, obj); |
| } |
| // Now try to invoke the closure. |
| return Api::NewHandle(isolate, DartEntry::InvokeClosure(args)); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetField(Dart_Handle container, Dart_Handle name) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| const String& field_name = Api::UnwrapStringHandle(isolate, name); |
| if (field_name.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, name, String); |
| } |
| |
| Field& field = Field::Handle(isolate); |
| Function& getter = Function::Handle(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(container)); |
| if (obj.IsNull()) { |
| return Api::NewError("%s expects argument 'container' to be non-null.", |
| CURRENT_FUNC); |
| } else if (obj.IsType()) { |
| if (!Type::Cast(obj).IsFinalized()) { |
| return Api::NewError( |
| "%s expects argument 'container' to be a fully resolved type.", |
| CURRENT_FUNC); |
| } |
| // To access a static field we may need to use the Field or the |
| // getter Function. |
| Class& cls = Class::Handle(isolate, Type::Cast(obj).type_class()); |
| |
| field = cls.LookupStaticField(field_name); |
| if (field.IsNull() || field.IsUninitialized()) { |
| const String& getter_name = |
| String::Handle(isolate, Field::GetterName(field_name)); |
| getter = cls.LookupStaticFunctionAllowPrivate(getter_name); |
| } |
| |
| if (!getter.IsNull()) { |
| // Invoke the getter and return the result. |
| return Api::NewHandle( |
| isolate, DartEntry::InvokeFunction(getter, Object::empty_array())); |
| } else if (!field.IsNull()) { |
| return Api::NewHandle(isolate, field.value()); |
| } else { |
| return Api::NewError("%s: did not find static field '%s'.", |
| CURRENT_FUNC, field_name.ToCString()); |
| } |
| |
| } else if (obj.IsInstance()) { |
| // Every instance field has a getter Function. Try to find the |
| // getter in any superclass and use that function to access the |
| // field. |
| const Instance& instance = Instance::Cast(obj); |
| Class& cls = Class::Handle(isolate, instance.clazz()); |
| String& getter_name = |
| String::Handle(isolate, Field::GetterName(field_name)); |
| while (!cls.IsNull()) { |
| getter = cls.LookupDynamicFunctionAllowPrivate(getter_name); |
| if (!getter.IsNull()) { |
| break; |
| } |
| cls = cls.SuperClass(); |
| } |
| |
| // Invoke the getter and return the result. |
| const int kNumArgs = 1; |
| const Array& args = Array::Handle(isolate, Array::New(kNumArgs)); |
| args.SetAt(0, instance); |
| if (getter.IsNull()) { |
| const Array& args_descriptor = |
| Array::Handle(ArgumentsDescriptor::New(args.Length())); |
| return Api::NewHandle(isolate, |
| DartEntry::InvokeNoSuchMethod(instance, |
| getter_name, |
| args, |
| args_descriptor)); |
| } |
| return Api::NewHandle(isolate, DartEntry::InvokeFunction(getter, args)); |
| |
| } else if (obj.IsLibrary()) { |
| // To access a top-level we may need to use the Field or the |
| // getter Function. The getter function may either be in the |
| // library or in the field's owner class, depending. |
| const Library& lib = Library::Cast(obj); |
| // Check that the library is loaded. |
| if (!lib.Loaded()) { |
| return Api::NewError( |
| "%s expects library argument 'container' to be loaded.", |
| CURRENT_FUNC); |
| } |
| field = lib.LookupFieldAllowPrivate(field_name); |
| if (field.IsNull()) { |
| // No field found and no ambiguity error. Check for a getter in the lib. |
| const String& getter_name = |
| String::Handle(isolate, Field::GetterName(field_name)); |
| getter = lib.LookupFunctionAllowPrivate(getter_name); |
| } else if (!field.IsNull() && field.IsUninitialized()) { |
| // A field was found. Check for a getter in the field's owner classs. |
| const Class& cls = Class::Handle(isolate, field.owner()); |
| const String& getter_name = |
| String::Handle(isolate, Field::GetterName(field_name)); |
| getter = cls.LookupStaticFunctionAllowPrivate(getter_name); |
| } |
| |
| if (!getter.IsNull()) { |
| // Invoke the getter and return the result. |
| return Api::NewHandle( |
| isolate, DartEntry::InvokeFunction(getter, Object::empty_array())); |
| } |
| if (!field.IsNull()) { |
| return Api::NewHandle(isolate, field.value()); |
| } |
| return Api::NewError("%s: did not find top-level variable '%s'.", |
| CURRENT_FUNC, field_name.ToCString()); |
| |
| } else if (obj.IsError()) { |
| return container; |
| } else { |
| return Api::NewError( |
| "%s expects argument 'container' to be an object, type, or library.", |
| CURRENT_FUNC); |
| } |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_SetField(Dart_Handle container, |
| Dart_Handle name, |
| Dart_Handle value) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| const String& field_name = Api::UnwrapStringHandle(isolate, name); |
| if (field_name.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, name, String); |
| } |
| |
| // Since null is allowed for value, we don't use UnwrapInstanceHandle. |
| const Object& value_obj = Object::Handle(isolate, Api::UnwrapHandle(value)); |
| if (!value_obj.IsNull() && !value_obj.IsInstance()) { |
| RETURN_TYPE_ERROR(isolate, value, Instance); |
| } |
| Instance& value_instance = Instance::Handle(isolate); |
| value_instance ^= value_obj.raw(); |
| |
| Field& field = Field::Handle(isolate); |
| Function& setter = Function::Handle(isolate); |
| const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(container)); |
| if (obj.IsNull()) { |
| return Api::NewError("%s expects argument 'container' to be non-null.", |
| CURRENT_FUNC); |
| } else if (obj.IsType()) { |
| if (!Type::Cast(obj).IsFinalized()) { |
| return Api::NewError( |
| "%s expects argument 'container' to be a fully resolved type.", |
| CURRENT_FUNC); |
| } |
| |
| // To access a static field we may need to use the Field or the |
| // setter Function. |
| Class& cls = Class::Handle(isolate, Type::Cast(obj).type_class()); |
| |
| field = cls.LookupStaticField(field_name); |
| if (field.IsNull()) { |
| String& setter_name = |
| String::Handle(isolate, Field::SetterName(field_name)); |
| setter = cls.LookupStaticFunctionAllowPrivate(setter_name); |
| } |
| |
| if (!setter.IsNull()) { |
| // Invoke the setter and return the result. |
| const int kNumArgs = 1; |
| const Array& args = Array::Handle(isolate, Array::New(kNumArgs)); |
| args.SetAt(0, value_instance); |
| const Object& result = |
| Object::Handle(isolate, DartEntry::InvokeFunction(setter, args)); |
| if (result.IsError()) { |
| return Api::NewHandle(isolate, result.raw()); |
| } else { |
| return Api::Success(); |
| } |
| } else if (!field.IsNull()) { |
| if (field.is_final()) { |
| return Api::NewError("%s: cannot set final field '%s'.", |
| CURRENT_FUNC, field_name.ToCString()); |
| } else { |
| field.set_value(value_instance); |
| return Api::Success(); |
| } |
| } else { |
| return Api::NewError("%s: did not find static field '%s'.", |
| CURRENT_FUNC, field_name.ToCString()); |
| } |
| |
| } else if (obj.IsInstance()) { |
| // Every instance field has a setter Function. Try to find the |
| // setter in any superclass and use that function to access the |
| // field. |
| const Instance& instance = Instance::Cast(obj); |
| Class& cls = Class::Handle(isolate, instance.clazz()); |
| String& setter_name = |
| String::Handle(isolate, Field::SetterName(field_name)); |
| while (!cls.IsNull()) { |
| field = cls.LookupInstanceField(field_name); |
| if (!field.IsNull() && field.is_final()) { |
| return Api::NewError("%s: cannot set final field '%s'.", |
| CURRENT_FUNC, field_name.ToCString()); |
| } |
| setter = cls.LookupDynamicFunctionAllowPrivate(setter_name); |
| if (!setter.IsNull()) { |
| break; |
| } |
| cls = cls.SuperClass(); |
| } |
| |
| // Invoke the setter and return the result. |
| const int kNumArgs = 2; |
| const Array& args = Array::Handle(isolate, Array::New(kNumArgs)); |
| args.SetAt(0, instance); |
| args.SetAt(1, value_instance); |
| if (setter.IsNull()) { |
| const Array& args_descriptor = |
| Array::Handle(ArgumentsDescriptor::New(args.Length())); |
| return Api::NewHandle(isolate, |
| DartEntry::InvokeNoSuchMethod(instance, |
| setter_name, |
| args, |
| args_descriptor)); |
| } |
| return Api::NewHandle(isolate, DartEntry::InvokeFunction(setter, args)); |
| |
| } else if (obj.IsLibrary()) { |
| // To access a top-level we may need to use the Field or the |
| // setter Function. The setter function may either be in the |
| // library or in the field's owner class, depending. |
| const Library& lib = Library::Cast(obj); |
| // Check that the library is loaded. |
| if (!lib.Loaded()) { |
| return Api::NewError( |
| "%s expects library argument 'container' to be loaded.", |
| CURRENT_FUNC); |
| } |
| field = lib.LookupFieldAllowPrivate(field_name); |
| if (field.IsNull()) { |
| const String& setter_name = |
| String::Handle(isolate, Field::SetterName(field_name)); |
| setter ^= lib.LookupFunctionAllowPrivate(setter_name); |
| } |
| |
| if (!setter.IsNull()) { |
| // Invoke the setter and return the result. |
| const int kNumArgs = 1; |
| const Array& args = Array::Handle(isolate, Array::New(kNumArgs)); |
| args.SetAt(0, value_instance); |
| const Object& result = |
| Object::Handle(isolate, DartEntry::InvokeFunction(setter, args)); |
| if (result.IsError()) { |
| return Api::NewHandle(isolate, result.raw()); |
| } |
| return Api::Success(); |
| } |
| if (!field.IsNull()) { |
| if (field.is_final()) { |
| return Api::NewError("%s: cannot set final top-level variable '%s'.", |
| CURRENT_FUNC, field_name.ToCString()); |
| } |
| field.set_value(value_instance); |
| return Api::Success(); |
| } |
| return Api::NewError("%s: did not find top-level variable '%s'.", |
| CURRENT_FUNC, field_name.ToCString()); |
| |
| } else if (obj.IsError()) { |
| return container; |
| } |
| return Api::NewError( |
| "%s expects argument 'container' to be an object, type, or library.", |
| CURRENT_FUNC); |
| } |
| |
| |
| // --- Exceptions ---- |
| |
| DART_EXPORT Dart_Handle Dart_ThrowException(Dart_Handle exception) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| { |
| const Instance& excp = Api::UnwrapInstanceHandle(isolate, exception); |
| if (excp.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, exception, Instance); |
| } |
| } |
| if (isolate->top_exit_frame_info() == 0) { |
| // There are no dart frames on the stack so it would be illegal to |
| // throw an exception here. |
| return Api::NewError("No Dart frames on stack, cannot throw exception"); |
| } |
| |
| // Unwind all the API scopes till the exit frame before throwing an |
| // exception. |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| const Instance* saved_exception; |
| { |
| NoGCScope no_gc; |
| RawInstance* raw_exception = |
| Api::UnwrapInstanceHandle(isolate, exception).raw(); |
| state->UnwindScopes(isolate->top_exit_frame_info()); |
| saved_exception = &Instance::Handle(raw_exception); |
| } |
| Exceptions::Throw(isolate, *saved_exception); |
| return Api::NewError("Exception was not thrown, internal error"); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_ReThrowException(Dart_Handle exception, |
| Dart_Handle stacktrace) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| { |
| const Instance& excp = Api::UnwrapInstanceHandle(isolate, exception); |
| if (excp.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, exception, Instance); |
| } |
| const Instance& stk = Api::UnwrapInstanceHandle(isolate, stacktrace); |
| if (stk.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, stacktrace, Instance); |
| } |
| } |
| if (isolate->top_exit_frame_info() == 0) { |
| // There are no dart frames on the stack so it would be illegal to |
| // throw an exception here. |
| return Api::NewError("No Dart frames on stack, cannot throw exception"); |
| } |
| |
| // Unwind all the API scopes till the exit frame before throwing an |
| // exception. |
| ApiState* state = isolate->api_state(); |
| ASSERT(state != NULL); |
| const Instance* saved_exception; |
| const Stacktrace* saved_stacktrace; |
| { |
| NoGCScope no_gc; |
| RawInstance* raw_exception = |
| Api::UnwrapInstanceHandle(isolate, exception).raw(); |
| RawStacktrace* raw_stacktrace = |
| Api::UnwrapStacktraceHandle(isolate, stacktrace).raw(); |
| state->UnwindScopes(isolate->top_exit_frame_info()); |
| saved_exception = &Instance::Handle(raw_exception); |
| saved_stacktrace = &Stacktrace::Handle(raw_stacktrace); |
| } |
| Exceptions::ReThrow(isolate, *saved_exception, *saved_stacktrace); |
| return Api::NewError("Exception was not re thrown, internal error"); |
| } |
| |
| |
| // --- Native fields and functions --- |
| |
| DART_EXPORT Dart_Handle Dart_CreateNativeWrapperClass(Dart_Handle library, |
| Dart_Handle name, |
| int field_count) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const String& cls_name = Api::UnwrapStringHandle(isolate, name); |
| if (cls_name.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, name, String); |
| } |
| const Library& lib = Api::UnwrapLibraryHandle(isolate, library); |
| if (lib.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, library, Library); |
| } |
| if (!Utils::IsUint(16, field_count)) { |
| return Api::NewError( |
| "Invalid field_count passed to Dart_CreateNativeWrapperClass"); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| String& cls_symbol = String::Handle(isolate, Symbols::New(cls_name)); |
| const Class& cls = Class::Handle( |
| isolate, Class::NewNativeWrapper(lib, cls_symbol, field_count)); |
| if (cls.IsNull()) { |
| return Api::NewError( |
| "Unable to create native wrapper class : already exists"); |
| } |
| return Api::NewHandle(isolate, cls.RareType()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeInstanceFieldCount(Dart_Handle obj, |
| int* count) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ReusableObjectHandleScope reused_obj_handle(isolate); |
| const Instance& instance = Api::UnwrapInstanceHandle(reused_obj_handle, obj); |
| if (instance.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, obj, Instance); |
| } |
| *count = instance.NumNativeFields(); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeInstanceField(Dart_Handle obj, |
| int index, |
| intptr_t* value) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| ReusableObjectHandleScope reused_obj_handle(isolate); |
| const Instance& instance = Api::UnwrapInstanceHandle(reused_obj_handle, obj); |
| if (instance.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, obj, Instance); |
| } |
| if (!instance.IsValidNativeIndex(index)) { |
| return Api::NewError( |
| "%s: invalid index %d passed in to access native instance field", |
| CURRENT_FUNC, index); |
| } |
| *value = instance.GetNativeField(index); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_SetNativeInstanceField(Dart_Handle obj, |
| int index, |
| intptr_t value) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Instance& instance = Api::UnwrapInstanceHandle(isolate, obj); |
| if (instance.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, obj, Instance); |
| } |
| if (!instance.IsValidNativeIndex(index)) { |
| return Api::NewError( |
| "%s: invalid index %d passed in to set native instance field", |
| CURRENT_FUNC, index); |
| } |
| instance.SetNativeField(index, value); |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT void* Dart_GetNativeIsolateData(Dart_NativeArguments args) { |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| Isolate* isolate = arguments->isolate(); |
| ASSERT(isolate == Isolate::Current()); |
| return isolate->init_callback_data(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeArguments( |
| Dart_NativeArguments args, |
| int num_arguments, |
| const Dart_NativeArgument_Descriptor* argument_descriptors, |
| Dart_NativeArgument_Value* arg_values) { |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| ASSERT(arguments->isolate() == Isolate::Current()); |
| if (arg_values == NULL) { |
| RETURN_NULL_ERROR(arg_values); |
| } |
| for (int i = 0; i < num_arguments; i++) { |
| Dart_NativeArgument_Descriptor desc = argument_descriptors[i]; |
| Dart_NativeArgument_Type arg_type = static_cast<Dart_NativeArgument_Type>( |
| desc.type); |
| int arg_index = desc.index; |
| ASSERT(arg_index >= 0 && arg_index < arguments->NativeArgCount()); |
| Dart_NativeArgument_Value* native_value = &(arg_values[i]); |
| switch (arg_type) { |
| case Dart_NativeArgument_kBool: |
| if (!Api::GetNativeBooleanArgument(arguments, |
| arg_index, |
| &(native_value->as_bool))) { |
| return Api::NewError("%s: expects argument at index %d to be of" |
| " type Boolean.", CURRENT_FUNC, i); |
| } |
| break; |
| |
| case Dart_NativeArgument_kInt32: { |
| int64_t value = 0; |
| if (!GetNativeIntegerArgument(arguments, |
| arg_index, |
| &value)) { |
| return Api::NewError("%s: expects argument at index %d to be of" |
| " type Integer.", CURRENT_FUNC, i); |
| } |
| if (value < INT_MIN || value > INT_MAX) { |
| return Api::NewError("%s: argument value at index %d is out of range", |
| CURRENT_FUNC, i); |
| } |
| native_value->as_int32 = static_cast<int32_t>(value); |
| break; |
| } |
| |
| case Dart_NativeArgument_kUint32: { |
| int64_t value = 0; |
| if (!GetNativeIntegerArgument(arguments, |
| arg_index, |
| &value)) { |
| return Api::NewError("%s: expects argument at index %d to be of" |
| " type Integer.", CURRENT_FUNC, i); |
| } |
| if (value < 0 || value > UINT_MAX) { |
| return Api::NewError("%s: argument value at index %d is out of range", |
| CURRENT_FUNC, i); |
| } |
| native_value->as_uint32 = static_cast<uint32_t>(value); |
| break; |
| } |
| |
| case Dart_NativeArgument_kInt64: { |
| int64_t value = 0; |
| if (!GetNativeIntegerArgument(arguments, |
| arg_index, |
| &value)) { |
| return Api::NewError("%s: expects argument at index %d to be of" |
| " type Integer.", CURRENT_FUNC, i); |
| } |
| native_value->as_int64 = value; |
| break; |
| } |
| |
| case Dart_NativeArgument_kUint64: { |
| uint64_t value = 0; |
| if (!GetNativeUnsignedIntegerArgument(arguments, |
| arg_index, |
| &value)) { |
| return Api::NewError("%s: expects argument at index %d to be of" |
| " type Integer.", CURRENT_FUNC, i); |
| } |
| native_value->as_uint64 = value; |
| break; |
| } |
| |
| case Dart_NativeArgument_kDouble: |
| if (!GetNativeDoubleArgument(arguments, |
| arg_index, |
| &(native_value->as_double))) { |
| return Api::NewError("%s: expects argument at index %d to be of" |
| " type Double.", CURRENT_FUNC, i); |
| } |
| break; |
| |
| case Dart_NativeArgument_kString: |
| if (!GetNativeStringArgument(arguments, |
| arg_index, |
| &(native_value->as_string.dart_str), |
| &(native_value->as_string.peer))) { |
| return Api::NewError("%s: expects argument at index %d to be of" |
| " type String.", CURRENT_FUNC, i); |
| } |
| break; |
| |
| case Dart_NativeArgument_kNativeFields: { |
| Dart_Handle result = GetNativeFieldsOfArgument( |
| arguments, |
| arg_index, |
| native_value->as_native_fields.num_fields, |
| native_value->as_native_fields.values, |
| CURRENT_FUNC); |
| if (result != Api::Success()) { |
| return result; |
| } |
| break; |
| } |
| |
| case Dart_NativeArgument_kInstance: { |
| Isolate* isolate = arguments->isolate(); |
| ASSERT(isolate == Isolate::Current()); |
| ASSERT(isolate->api_state() && |
| isolate->api_state()->top_scope() != NULL); |
| native_value->as_instance = |
| Api::NewHandle(isolate, arguments->NativeArgAt(arg_index)); |
| break; |
| } |
| |
| default: |
| return Api::NewError("%s: invalid argument type %d.", |
| CURRENT_FUNC, arg_type); |
| } |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeArgument(Dart_NativeArguments args, |
| int index) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| if ((index < 0) || (index >= arguments->NativeArgCount())) { |
| return Api::NewError( |
| "%s: argument 'index' out of range. Expected 0..%d but saw %d.", |
| CURRENT_FUNC, arguments->NativeArgCount() - 1, index); |
| } |
| return Api::NewHandle(arguments->isolate(), arguments->NativeArgAt(index)); |
| } |
| |
| |
| DART_EXPORT int Dart_GetNativeArgumentCount(Dart_NativeArguments args) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| return arguments->NativeArgCount(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeFieldsOfArgument( |
| Dart_NativeArguments args, |
| int arg_index, |
| int num_fields, |
| intptr_t* field_values) { |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| if ((arg_index < 0) || (arg_index >= arguments->NativeArgCount())) { |
| return Api::NewError( |
| "%s: argument 'arg_index' out of range. Expected 0..%d but saw %d.", |
| CURRENT_FUNC, arguments->NativeArgCount() - 1, arg_index); |
| } |
| if (field_values == NULL) { |
| RETURN_NULL_ERROR(field_values); |
| } |
| return GetNativeFieldsOfArgument(arguments, |
| arg_index, |
| num_fields, |
| field_values, |
| CURRENT_FUNC); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeReceiver(Dart_NativeArguments args, |
| intptr_t* value) { |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| ASSERT(arguments->isolate() == Isolate::Current()); |
| if (value == NULL) { |
| RETURN_NULL_ERROR(value); |
| } |
| if (Api::GetNativeReceiver(arguments, value)) { |
| return Api::Success(); |
| } |
| return Api::NewError("%s expects receiver argument to be non-null and of" |
| " type Instance.", CURRENT_FUNC); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeStringArgument(Dart_NativeArguments args, |
| int arg_index, |
| void** peer) { |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| Dart_Handle result = Api::Null(); |
| if (!GetNativeStringArgument(arguments, arg_index, &result, peer)) { |
| return Api::NewError("%s expects argument at %d to be of" |
| " type String.", CURRENT_FUNC, arg_index); |
| } |
| return result; |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeIntegerArgument(Dart_NativeArguments args, |
| int index, |
| int64_t* value) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| if ((index < 0) || (index >= arguments->NativeArgCount())) { |
| return Api::NewError( |
| "%s: argument 'index' out of range. Expected 0..%d but saw %d.", |
| CURRENT_FUNC, arguments->NativeArgCount() - 1, index); |
| } |
| if (!GetNativeIntegerArgument(arguments, index, value)) { |
| return Api::NewError("%s: expects argument at %d to be of" |
| " type Integer.", CURRENT_FUNC, index); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeBooleanArgument(Dart_NativeArguments args, |
| int index, |
| bool* value) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| if ((index < 0) || (index >= arguments->NativeArgCount())) { |
| return Api::NewError( |
| "%s: argument 'index' out of range. Expected 0..%d but saw %d.", |
| CURRENT_FUNC, arguments->NativeArgCount() - 1, index); |
| } |
| if (!Api::GetNativeBooleanArgument(arguments, index, value)) { |
| return Api::NewError("%s: expects argument at %d to be of type Boolean.", |
| CURRENT_FUNC, index); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetNativeDoubleArgument(Dart_NativeArguments args, |
| int index, |
| double* value) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| if ((index < 0) || (index >= arguments->NativeArgCount())) { |
| return Api::NewError( |
| "%s: argument 'index' out of range. Expected 0..%d but saw %d.", |
| CURRENT_FUNC, arguments->NativeArgCount() - 1, index); |
| } |
| if (!GetNativeDoubleArgument(arguments, index, value)) { |
| return Api::NewError("%s: expects argument at %d to be of" |
| " type Double.", CURRENT_FUNC, index); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT void Dart_SetReturnValue(Dart_NativeArguments args, |
| Dart_Handle retval) { |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| ASSERT(arguments->isolate() == Isolate::Current()); |
| if ((retval != Api::Null()) && (!Api::IsInstance(retval))) { |
| const Object& ret_obj = Object::Handle(Api::UnwrapHandle(retval)); |
| FATAL1("Return value check failed: saw '%s' expected a dart Instance.", |
| ret_obj.ToCString()); |
| } |
| ASSERT(retval != 0); |
| Api::SetReturnValue(arguments, retval); |
| } |
| |
| |
| DART_EXPORT void Dart_SetWeakHandleReturnValue(Dart_NativeArguments args, |
| Dart_WeakPersistentHandle rval) { |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| #if defined(DEBUG) |
| Isolate* isolate = arguments->isolate(); |
| ASSERT(isolate == Isolate::Current()); |
| ASSERT(isolate->api_state() != NULL && |
| (isolate->api_state()->IsValidWeakPersistentHandle(rval) || |
| isolate->api_state()->IsValidPrologueWeakPersistentHandle(rval))); |
| #endif |
| Api::SetWeakHandleReturnValue(arguments, rval); |
| } |
| |
| |
| // --- Environment --- |
| RawString* Api::CallEnvironmentCallback(Isolate* isolate, const String& name) { |
| Scope api_scope(isolate); |
| Dart_EnvironmentCallback callback = isolate->environment_callback(); |
| String& result = String::Handle(isolate); |
| if (callback != NULL) { |
| Dart_Handle response = callback(Api::NewHandle(isolate, name.raw())); |
| if (::Dart_IsString(response)) { |
| result ^= Api::UnwrapHandle(response); |
| } else if (::Dart_IsError(response)) { |
| const Object& error = |
| Object::Handle(isolate, Api::UnwrapHandle(response)); |
| Exceptions::ThrowArgumentError( |
| String::Handle(String::New(Error::Cast(error).ToErrorCString()))); |
| } else if (!::Dart_IsNull(response)) { |
| // At this point everything except null are invalid environment values. |
| Exceptions::ThrowArgumentError( |
| String::Handle(String::New("Illegal environment value"))); |
| } |
| } |
| if (result.IsNull()) { |
| // TODO(iposva): Determine whether builtin values can be overriden by the |
| // embedder. |
| // Check for default VM provided values. If it was not overriden on the |
| // command line. |
| if (Symbols::DartIsVM().Equals(name)) { |
| return Symbols::True().raw(); |
| } |
| } |
| return result.raw(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_SetEnvironmentCallback( |
| Dart_EnvironmentCallback callback) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| isolate->set_environment_callback(callback); |
| return Api::Success(); |
| } |
| |
| |
| // --- Scripts and Libraries --- |
| DART_EXPORT void Dart_SetBooleanReturnValue(Dart_NativeArguments args, |
| bool retval) { |
| TRACE_API_CALL(CURRENT_FUNC); |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| arguments->SetReturn(Bool::Get(retval)); |
| } |
| |
| |
| DART_EXPORT void Dart_SetIntegerReturnValue(Dart_NativeArguments args, |
| int64_t retval) { |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| ASSERT(arguments->isolate() == Isolate::Current()); |
| if (Smi::IsValid(retval)) { |
| Api::SetSmiReturnValue(arguments, static_cast<intptr_t>(retval)); |
| } else { |
| // Slow path for Mints and Bigints. |
| ASSERT_CALLBACK_STATE(arguments->isolate()); |
| Api::SetIntegerReturnValue(arguments, retval); |
| } |
| } |
| |
| |
| DART_EXPORT void Dart_SetDoubleReturnValue(Dart_NativeArguments args, |
| double retval) { |
| NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); |
| #if defined(DEBUG) |
| Isolate* isolate = arguments->isolate(); |
| ASSERT(isolate == Isolate::Current()); |
| ASSERT_CALLBACK_STATE(isolate); |
| #endif |
| Api::SetDoubleReturnValue(arguments, retval); |
| } |
| |
| |
| // --- Scripts and Libraries --- |
| |
| DART_EXPORT Dart_Handle Dart_SetLibraryTagHandler( |
| Dart_LibraryTagHandler handler) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| isolate->set_library_tag_handler(handler); |
| return Api::Success(); |
| } |
| |
| |
| // NOTE: Need to pass 'result' as a parameter here in order to avoid |
| // warning: variable 'result' might be clobbered by 'longjmp' or 'vfork' |
| // which shows up because of the use of setjmp. |
| static void CompileSource(Isolate* isolate, |
| const Library& lib, |
| const Script& script, |
| Dart_Handle* result) { |
| bool update_lib_status = (script.kind() == RawScript::kScriptTag || |
| script.kind() == RawScript::kLibraryTag); |
| if (update_lib_status) { |
| lib.SetLoadInProgress(); |
| } |
| ASSERT(isolate != NULL); |
| const Error& error = Error::Handle(isolate, Compiler::Compile(lib, script)); |
| if (error.IsNull()) { |
| *result = Api::NewHandle(isolate, lib.raw()); |
| } else { |
| *result = Api::NewHandle(isolate, error.raw()); |
| // Compilation errors are not Dart instances, so just mark the library |
| // as having failed to load without providing an error instance. |
| lib.SetLoadError(Instance::Handle()); |
| } |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_LoadScript(Dart_Handle url, |
| Dart_Handle source, |
| intptr_t line_offset, |
| intptr_t column_offset) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| TIMERSCOPE(isolate, time_script_loading); |
| const String& url_str = Api::UnwrapStringHandle(isolate, url); |
| if (url_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, url, String); |
| } |
| const String& source_str = Api::UnwrapStringHandle(isolate, source); |
| if (source_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, source, String); |
| } |
| Library& library = |
| Library::Handle(isolate, isolate->object_store()->root_library()); |
| if (!library.IsNull()) { |
| const String& library_url = String::Handle(isolate, library.url()); |
| return Api::NewError("%s: A script has already been loaded from '%s'.", |
| CURRENT_FUNC, library_url.ToCString()); |
| } |
| if (line_offset < 0) { |
| return Api::NewError("%s: argument 'line_offset' must be positive number", |
| CURRENT_FUNC); |
| } |
| if (column_offset < 0) { |
| return Api::NewError("%s: argument 'column_offset' must be positive number", |
| CURRENT_FUNC); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| NoHeapGrowthControlScope no_growth_control; |
| |
| library = Library::New(url_str); |
| library.set_debuggable(true); |
| library.Register(); |
| isolate->object_store()->set_root_library(library); |
| |
| const Script& script = Script::Handle( |
| isolate, Script::New(url_str, source_str, RawScript::kScriptTag)); |
| script.SetLocationOffset(line_offset, column_offset); |
| Dart_Handle result; |
| CompileSource(isolate, library, script, &result); |
| return result; |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_LoadScriptFromSnapshot(const uint8_t* buffer, |
| intptr_t buffer_len) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| TIMERSCOPE(isolate, time_script_loading); |
| if (buffer == NULL) { |
| RETURN_NULL_ERROR(buffer); |
| } |
| NoHeapGrowthControlScope no_growth_control; |
| |
| const Snapshot* snapshot = Snapshot::SetupFromBuffer(buffer); |
| if (!snapshot->IsScriptSnapshot()) { |
| return Api::NewError("%s expects parameter 'buffer' to be a script type" |
| " snapshot.", CURRENT_FUNC); |
| } |
| if (snapshot->length() != buffer_len) { |
| return Api::NewError("%s: 'buffer_len' of %" Pd " is not equal to %" Pd |
| " which is the expected length in the snapshot.", |
| CURRENT_FUNC, buffer_len, snapshot->length()); |
| } |
| Library& library = |
| Library::Handle(isolate, isolate->object_store()->root_library()); |
| if (!library.IsNull()) { |
| const String& library_url = String::Handle(isolate, library.url()); |
| return Api::NewError("%s: A script has already been loaded from '%s'.", |
| CURRENT_FUNC, library_url.ToCString()); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| SnapshotReader reader(snapshot->content(), |
| snapshot->length(), |
| snapshot->kind(), |
| isolate); |
| const Object& tmp = Object::Handle(isolate, reader.ReadScriptSnapshot()); |
| if (tmp.IsError()) { |
| return Api::NewHandle(isolate, tmp.raw()); |
| } |
| library ^= tmp.raw(); |
| library.set_debuggable(true); |
| isolate->object_store()->set_root_library(library); |
| return Api::NewHandle(isolate, library.raw()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_RootLibrary() { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| return Api::NewHandle(isolate, isolate->object_store()->root_library()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetClass(Dart_Handle library, |
| Dart_Handle class_name) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Library& lib = Api::UnwrapLibraryHandle(isolate, library); |
| if (lib.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, library, Library); |
| } |
| const String& cls_name = Api::UnwrapStringHandle(isolate, class_name); |
| if (cls_name.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, class_name, String); |
| } |
| const Class& cls = Class::Handle( |
| isolate, lib.LookupClassAllowPrivate(cls_name)); |
| if (cls.IsNull()) { |
| // TODO(turnidge): Return null or error in this case? |
| const String& lib_name = String::Handle(isolate, lib.name()); |
| return Api::NewError("Class '%s' not found in library '%s'.", |
| cls_name.ToCString(), lib_name.ToCString()); |
| } |
| return Api::NewHandle(isolate, cls.RareType()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_GetType(Dart_Handle library, |
| Dart_Handle class_name, |
| intptr_t number_of_type_arguments, |
| Dart_Handle* type_arguments) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| |
| // Validate the input arguments. |
| const Library& lib = Api::UnwrapLibraryHandle(isolate, library); |
| if (lib.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, library, Library); |
| } |
| if (!lib.Loaded()) { |
| return Api::NewError( |
| "%s expects library argument 'library' to be loaded.", |
| CURRENT_FUNC); |
| } |
| const String& name_str = Api::UnwrapStringHandle(isolate, class_name); |
| if (name_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, class_name, String); |
| } |
| const Class& cls = |
| Class::Handle(isolate, lib.LookupClassAllowPrivate(name_str)); |
| if (cls.IsNull()) { |
| const String& lib_name = String::Handle(isolate, lib.name()); |
| return Api::NewError("Type '%s' not found in library '%s'.", |
| name_str.ToCString(), lib_name.ToCString()); |
| } |
| if (cls.NumTypeArguments() == 0) { |
| if (number_of_type_arguments != 0) { |
| return Api::NewError("Invalid number of type arguments specified, " |
| "got %" Pd " expected 0", number_of_type_arguments); |
| } |
| return Api::NewHandle(isolate, Type::NewNonParameterizedType(cls)); |
| } |
| intptr_t num_expected_type_arguments = cls.NumTypeParameters(); |
| TypeArguments& type_args_obj = TypeArguments::Handle(); |
| if (number_of_type_arguments > 0) { |
| if (type_arguments == NULL) { |
| RETURN_NULL_ERROR(type_arguments); |
| } |
| if (num_expected_type_arguments != number_of_type_arguments) { |
| return Api::NewError("Invalid number of type arguments specified, " |
| "got %" Pd " expected %" Pd, |
| number_of_type_arguments, |
| num_expected_type_arguments); |
| } |
| const Array& array = Api::UnwrapArrayHandle(isolate, *type_arguments); |
| if (array.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, *type_arguments, Array); |
| } |
| if (array.Length() != num_expected_type_arguments) { |
| return Api::NewError("Invalid type arguments specified, expected an " |
| "array of len %" Pd " but got an array of len %" Pd, |
| number_of_type_arguments, |
| array.Length()); |
| } |
| // Set up the type arguments array. |
| type_args_obj ^= TypeArguments::New(num_expected_type_arguments); |
| AbstractType& type_arg = AbstractType::Handle(); |
| for (intptr_t i = 0; i < number_of_type_arguments; i++) { |
| type_arg ^= array.At(i); |
| type_args_obj.SetTypeAt(i, type_arg); |
| } |
| } |
| |
| // Construct the type object, canonicalize it and return. |
| Type& instantiated_type = Type::Handle( |
| Type::New(cls, type_args_obj, Scanner::kNoSourcePos)); |
| instantiated_type ^= ClassFinalizer::FinalizeType( |
| cls, instantiated_type, ClassFinalizer::kCanonicalize); |
| return Api::NewHandle(isolate, instantiated_type.raw()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_LibraryUrl(Dart_Handle library) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Library& lib = Api::UnwrapLibraryHandle(isolate, library); |
| if (lib.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, library, Library); |
| } |
| const String& url = String::Handle(isolate, lib.url()); |
| ASSERT(!url.IsNull()); |
| return Api::NewHandle(isolate, url.raw()); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_LookupLibrary(Dart_Handle url) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const String& url_str = Api::UnwrapStringHandle(isolate, url); |
| if (url_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, url, String); |
| } |
| const Library& library = |
| Library::Handle(isolate, Library::LookupLibrary(url_str)); |
| if (library.IsNull()) { |
| return Api::NewError("%s: library '%s' not found.", |
| CURRENT_FUNC, url_str.ToCString()); |
| } else { |
| return Api::NewHandle(isolate, library.raw()); |
| } |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_LibraryHandleError(Dart_Handle library_in, |
| Dart_Handle error_in) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| |
| const Library& lib = Api::UnwrapLibraryHandle(isolate, library_in); |
| if (lib.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, library_in, Library); |
| } |
| const Instance& err = Api::UnwrapInstanceHandle(isolate, error_in); |
| if (err.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, error_in, Instance); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| const GrowableObjectArray& pending_deferred_loads = |
| GrowableObjectArray::Handle( |
| isolate->object_store()->pending_deferred_loads()); |
| for (intptr_t i = 0; i < pending_deferred_loads.Length(); i++) { |
| if (pending_deferred_loads.At(i) == lib.raw()) { |
| lib.SetLoadError(err); |
| return Api::Null(); |
| } |
| } |
| return error_in; |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_LoadLibrary(Dart_Handle url, |
| Dart_Handle source, |
| intptr_t line_offset, |
| intptr_t column_offset) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| TIMERSCOPE(isolate, time_script_loading); |
| const String& url_str = Api::UnwrapStringHandle(isolate, url); |
| if (url_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, url, String); |
| } |
| const String& source_str = Api::UnwrapStringHandle(isolate, source); |
| if (source_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, source, String); |
| } |
| if (line_offset < 0) { |
| return Api::NewError("%s: argument 'line_offset' must be positive number", |
| CURRENT_FUNC); |
| } |
| if (column_offset < 0) { |
| return Api::NewError("%s: argument 'column_offset' must be positive number", |
| CURRENT_FUNC); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| NoHeapGrowthControlScope no_growth_control; |
| |
| Library& library = Library::Handle(isolate, Library::LookupLibrary(url_str)); |
| if (library.IsNull()) { |
| library = Library::New(url_str); |
| library.Register(); |
| } else if (library.LoadInProgress() || |
| library.Loaded() || |
| library.LoadFailed()) { |
| // The source for this library has either been loaded or is in the |
| // process of loading. Return an error. |
| return Api::NewError("%s: library '%s' has already been loaded.", |
| CURRENT_FUNC, url_str.ToCString()); |
| } |
| const Script& script = Script::Handle( |
| isolate, Script::New(url_str, source_str, RawScript::kLibraryTag)); |
| script.SetLocationOffset(line_offset, column_offset); |
| Dart_Handle result; |
| CompileSource(isolate, library, script, &result); |
| // Propagate the error out right now. |
| if (::Dart_IsError(result)) { |
| return result; |
| } |
| |
| // If this is the dart:_builtin library, register it with the VM. |
| if (url_str.Equals("dart:_builtin")) { |
| isolate->object_store()->set_builtin_library(library); |
| Dart_Handle state = Api::CheckAndFinalizePendingClasses(isolate); |
| if (::Dart_IsError(state)) { |
| return state; |
| } |
| } |
| return result; |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_LibraryImportLibrary(Dart_Handle library, |
| Dart_Handle import, |
| Dart_Handle prefix) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Library& library_vm = Api::UnwrapLibraryHandle(isolate, library); |
| if (library_vm.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, library, Library); |
| } |
| const Library& import_vm = Api::UnwrapLibraryHandle(isolate, import); |
| if (import_vm.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, import, Library); |
| } |
| const Object& prefix_object = |
| Object::Handle(isolate, Api::UnwrapHandle(prefix)); |
| const String& prefix_vm = prefix_object.IsNull() |
| ? Symbols::Empty() |
| : String::Cast(prefix_object); |
| if (prefix_vm.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, prefix, String); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| const String& prefix_symbol = |
| String::Handle(isolate, Symbols::New(prefix_vm)); |
| const Namespace& import_ns = Namespace::Handle( |
| Namespace::New(import_vm, Object::null_array(), Object::null_array())); |
| if (prefix_vm.Length() == 0) { |
| library_vm.AddImport(import_ns); |
| } else { |
| LibraryPrefix& library_prefix = LibraryPrefix::Handle(); |
| library_prefix = library_vm.LookupLocalLibraryPrefix(prefix_symbol); |
| if (!library_prefix.IsNull()) { |
| library_prefix.AddImport(import_ns); |
| } else { |
| library_prefix = |
| LibraryPrefix::New(prefix_symbol, import_ns, false, library_vm); |
| library_vm.AddObject(library_prefix, prefix_symbol); |
| } |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_LoadSource(Dart_Handle library, |
| Dart_Handle url, |
| Dart_Handle source, |
| intptr_t line_offset, |
| intptr_t column_offset) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| TIMERSCOPE(isolate, time_script_loading); |
| const Library& lib = Api::UnwrapLibraryHandle(isolate, library); |
| if (lib.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, library, Library); |
| } |
| const String& url_str = Api::UnwrapStringHandle(isolate, url); |
| if (url_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, url, String); |
| } |
| const String& source_str = Api::UnwrapStringHandle(isolate, source); |
| if (source_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, source, String); |
| } |
| if (line_offset < 0) { |
| return Api::NewError("%s: argument 'line_offset' must be positive number", |
| CURRENT_FUNC); |
| } |
| if (column_offset < 0) { |
| return Api::NewError("%s: argument 'column_offset' must be positive number", |
| CURRENT_FUNC); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| NoHeapGrowthControlScope no_growth_control; |
| |
| const Script& script = Script::Handle( |
| isolate, Script::New(url_str, source_str, RawScript::kSourceTag)); |
| script.SetLocationOffset(line_offset, column_offset); |
| Dart_Handle result; |
| CompileSource(isolate, lib, script, &result); |
| return result; |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_LibraryLoadPatch(Dart_Handle library, |
| Dart_Handle url, |
| Dart_Handle patch_source) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| TIMERSCOPE(isolate, time_script_loading); |
| const Library& lib = Api::UnwrapLibraryHandle(isolate, library); |
| if (lib.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, library, Library); |
| } |
| const String& url_str = Api::UnwrapStringHandle(isolate, url); |
| if (url_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, url, String); |
| } |
| const String& source_str = Api::UnwrapStringHandle(isolate, patch_source); |
| if (source_str.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, patch_source, String); |
| } |
| CHECK_CALLBACK_STATE(isolate); |
| |
| NoHeapGrowthControlScope no_growth_control; |
| |
| const Script& script = Script::Handle( |
| isolate, Script::New(url_str, source_str, RawScript::kPatchTag)); |
| Dart_Handle result; |
| CompileSource(isolate, lib, script, &result); |
| return result; |
| } |
| |
| |
| // Finalizes classes and invokes Dart core library function that completes |
| // futures of loadLibrary calls (deferred library loading). |
| DART_EXPORT Dart_Handle Dart_FinalizeLoading(bool complete_futures) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| CHECK_CALLBACK_STATE(isolate); |
| |
| isolate->DoneLoading(); |
| |
| // TODO(hausner): move the remaining code below (finalization and |
| // invoing of _completeDeferredLoads) into Isolate::DoneLoading(). |
| |
| // Finalize all classes if needed. |
| Dart_Handle state = Api::CheckAndFinalizePendingClasses(isolate); |
| if (::Dart_IsError(state)) { |
| return state; |
| } |
| |
| // Now that the newly loaded classes are finalized, notify the debugger |
| // that new code has been loaded. If there are latent breakpoints in |
| // the new code, the debugger convert them to unresolved source breakpoints. |
| // The code that completes the futures (invoked below) may call into the |
| // newly loaded code and trigger one of these breakpoints. |
| isolate->debugger()->NotifyDoneLoading(); |
| |
| if (complete_futures) { |
| const Library& corelib = Library::Handle(isolate, Library::CoreLibrary()); |
| const String& function_name = |
| String::Handle(isolate, String::New("_completeDeferredLoads")); |
| const Function& function = |
| Function::Handle(isolate, |
| corelib.LookupFunctionAllowPrivate(function_name)); |
| ASSERT(!function.IsNull()); |
| const Array& args = Array::empty_array(); |
| |
| const Object& res = |
| Object::Handle(isolate, DartEntry::InvokeFunction(function, args)); |
| isolate->object_store()->clear_pending_deferred_loads(); |
| if (res.IsError() || res.IsUnhandledException()) { |
| return Api::NewHandle(isolate, res.raw()); |
| } |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_SetNativeResolver( |
| Dart_Handle library, |
| Dart_NativeEntryResolver resolver, |
| Dart_NativeEntrySymbol symbol) { |
| Isolate* isolate = Isolate::Current(); |
| DARTSCOPE(isolate); |
| const Library& lib = Api::UnwrapLibraryHandle(isolate, library); |
| if (lib.IsNull()) { |
| RETURN_TYPE_ERROR(isolate, library, Library); |
| } |
| lib.set_native_entry_resolver(resolver); |
| lib.set_native_entry_symbol_resolver(symbol); |
| return Api::Success(); |
| } |
| |
| |
| // --- Peer support --- |
| |
| DART_EXPORT Dart_Handle Dart_GetPeer(Dart_Handle object, void** peer) { |
| if (peer == NULL) { |
| RETURN_NULL_ERROR(peer); |
| } |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| REUSABLE_OBJECT_HANDLESCOPE(isolate); |
| Object& obj = isolate->ObjectHandle(); |
| obj = Api::UnwrapHandle(object); |
| if (obj.IsNull() || obj.IsNumber() || obj.IsBool()) { |
| const char* msg = |
| "%s: argument 'object' cannot be a subtype of Null, num, or bool"; |
| return Api::NewError(msg, CURRENT_FUNC); |
| } |
| { |
| NoGCScope no_gc; |
| RawObject* raw_obj = obj.raw(); |
| *peer = isolate->heap()->GetPeer(raw_obj); |
| } |
| return Api::Success(); |
| } |
| |
| |
| DART_EXPORT Dart_Handle Dart_SetPeer(Dart_Handle object, void* peer) { |
| Isolate* isolate = Isolate::Current(); |
| CHECK_ISOLATE(isolate); |
| REUSABLE_OBJECT_HANDLESCOPE(isolate); |
| Object& obj = isolate->ObjectHandle(); |
| obj = Api::UnwrapHandle(object); |
| if (obj.IsNull() || obj.IsNumber() || obj.IsBool()) { |
| const char* msg = |
| "%s: argument 'object' cannot be a subtype of Null, num, or bool"; |
| return Api::NewError(msg, CURRENT_FUNC); |
| } |
| { |
| NoGCScope no_gc; |
| RawObject* raw_obj = obj.raw(); |
| isolate->heap()->SetPeer(raw_obj, peer); |
| } |
| return Api::Success(); |
| } |
| |
| |
| // --- Service support --- |
| |
| DART_EXPORT bool Dart_IsServiceIsolate(Dart_Isolate isolate) { |
| Isolate* iso = reinterpret_cast<Isolate*>(isolate); |
| return Service::IsServiceIsolate(iso); |
| } |
| |
| |
| DART_EXPORT Dart_Port Dart_ServiceWaitForLoadPort() { |
| return Service::WaitForLoadPort(); |
| } |
| |
| |
| DART_EXPORT void Dart_RegisterIsolateServiceRequestCallback( |
| const char* name, |
| Dart_ServiceRequestCallback callback, |
| void* user_data) { |
| Service::RegisterIsolateEmbedderCallback(name, callback, user_data); |
| } |
| |
| |
| DART_EXPORT void Dart_RegisterRootServiceRequestCallback( |
| const char* name, |
| Dart_ServiceRequestCallback callback, |
| void* user_data) { |
| Service::RegisterRootEmbedderCallback(name, callback, user_data); |
| } |
| |
| } // namespace dart |
