// Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "src/runtime/runtime-utils.h" #include "src/arguments.h" #include "src/factory.h" #include "src/messages.h" #include "src/objects-inl.h" #include "src/runtime/runtime.h" namespace v8 { namespace internal { RUNTIME_FUNCTION(Runtime_ArrayBufferGetByteLength) { SealHandleScope shs(isolate); DCHECK(args.length() == 1); CONVERT_ARG_CHECKED(JSArrayBuffer, holder, 0); return holder->byte_length(); } RUNTIME_FUNCTION(Runtime_ArrayBufferSliceImpl) { HandleScope scope(isolate); DCHECK(args.length() == 4); CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, source, 0); CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, target, 1); CONVERT_NUMBER_ARG_HANDLE_CHECKED(first, 2); CONVERT_NUMBER_ARG_HANDLE_CHECKED(new_length, 3); RUNTIME_ASSERT(!source.is_identical_to(target)); size_t start = 0, target_length = 0; RUNTIME_ASSERT(TryNumberToSize(isolate, *first, &start)); RUNTIME_ASSERT(TryNumberToSize(isolate, *new_length, &target_length)); RUNTIME_ASSERT(NumberToSize(isolate, target->byte_length()) >= target_length); if (target_length == 0) return isolate->heap()->undefined_value(); size_t source_byte_length = NumberToSize(isolate, source->byte_length()); RUNTIME_ASSERT(start <= source_byte_length); RUNTIME_ASSERT(source_byte_length - start >= target_length); uint8_t* source_data = reinterpret_cast<uint8_t*>(source->backing_store()); uint8_t* target_data = reinterpret_cast<uint8_t*>(target->backing_store()); CopyBytes(target_data, source_data + start, target_length); return isolate->heap()->undefined_value(); } RUNTIME_FUNCTION(Runtime_ArrayBufferNeuter) { HandleScope scope(isolate); DCHECK(args.length() == 1); CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, array_buffer, 0); if (array_buffer->backing_store() == NULL) { CHECK(Smi::FromInt(0) == array_buffer->byte_length()); return isolate->heap()->undefined_value(); } // Shared array buffers should never be neutered. RUNTIME_ASSERT(!array_buffer->is_shared()); DCHECK(!array_buffer->is_external()); void* backing_store = array_buffer->backing_store(); size_t byte_length = NumberToSize(isolate, array_buffer->byte_length()); array_buffer->set_is_external(true); isolate->heap()->UnregisterArrayBuffer(*array_buffer); array_buffer->Neuter(); isolate->array_buffer_allocator()->Free(backing_store, byte_length); return isolate->heap()->undefined_value(); } void Runtime::ArrayIdToTypeAndSize(int arrayId, ExternalArrayType* array_type, ElementsKind* fixed_elements_kind, size_t* element_size) { switch (arrayId) { #define ARRAY_ID_CASE(Type, type, TYPE, ctype, size) \ case ARRAY_ID_##TYPE: \ *array_type = kExternal##Type##Array; \ *fixed_elements_kind = TYPE##_ELEMENTS; \ *element_size = size; \ break; TYPED_ARRAYS(ARRAY_ID_CASE) #undef ARRAY_ID_CASE default: UNREACHABLE(); } } RUNTIME_FUNCTION(Runtime_TypedArrayInitialize) { HandleScope scope(isolate); DCHECK(args.length() == 6); CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0); CONVERT_SMI_ARG_CHECKED(arrayId, 1); CONVERT_ARG_HANDLE_CHECKED(Object, maybe_buffer, 2); CONVERT_NUMBER_ARG_HANDLE_CHECKED(byte_offset_object, 3); CONVERT_NUMBER_ARG_HANDLE_CHECKED(byte_length_object, 4); CONVERT_BOOLEAN_ARG_CHECKED(initialize, 5); RUNTIME_ASSERT(arrayId >= Runtime::ARRAY_ID_FIRST && arrayId <= Runtime::ARRAY_ID_LAST); ExternalArrayType array_type = kExternalInt8Array; // Bogus initialization. size_t element_size = 1; // Bogus initialization. ElementsKind fixed_elements_kind = INT8_ELEMENTS; // Bogus initialization. Runtime::ArrayIdToTypeAndSize(arrayId, &array_type, &fixed_elements_kind, &element_size); RUNTIME_ASSERT(holder->map()->elements_kind() == fixed_elements_kind); size_t byte_offset = 0; size_t byte_length = 0; RUNTIME_ASSERT(TryNumberToSize(isolate, *byte_offset_object, &byte_offset)); RUNTIME_ASSERT(TryNumberToSize(isolate, *byte_length_object, &byte_length)); if (maybe_buffer->IsJSArrayBuffer()) { Handle<JSArrayBuffer> buffer = Handle<JSArrayBuffer>::cast(maybe_buffer); size_t array_buffer_byte_length = NumberToSize(isolate, buffer->byte_length()); RUNTIME_ASSERT(byte_offset <= array_buffer_byte_length); RUNTIME_ASSERT(array_buffer_byte_length - byte_offset >= byte_length); } else { RUNTIME_ASSERT(maybe_buffer->IsNull()); } RUNTIME_ASSERT(byte_length % element_size == 0); size_t length = byte_length / element_size; if (length > static_cast<unsigned>(Smi::kMaxValue)) { THROW_NEW_ERROR_RETURN_FAILURE( isolate, NewRangeError(MessageTemplate::kInvalidTypedArrayLength)); } // All checks are done, now we can modify objects. DCHECK_EQ(v8::ArrayBufferView::kInternalFieldCount, holder->GetInternalFieldCount()); for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { holder->SetInternalField(i, Smi::FromInt(0)); } Handle<Object> length_obj = isolate->factory()->NewNumberFromSize(length); holder->set_length(*length_obj); holder->set_byte_offset(*byte_offset_object); holder->set_byte_length(*byte_length_object); if (!maybe_buffer->IsNull()) { Handle<JSArrayBuffer> buffer = Handle<JSArrayBuffer>::cast(maybe_buffer); holder->set_buffer(*buffer); Handle<FixedTypedArrayBase> elements = isolate->factory()->NewFixedTypedArrayWithExternalPointer( static_cast<int>(length), array_type, static_cast<uint8_t*>(buffer->backing_store()) + byte_offset); holder->set_elements(*elements); } else { Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer(); JSArrayBuffer::Setup(buffer, isolate, true, NULL, byte_length, SharedFlag::kNotShared); holder->set_buffer(*buffer); Handle<FixedTypedArrayBase> elements = isolate->factory()->NewFixedTypedArray(static_cast<int>(length), array_type, initialize); holder->set_elements(*elements); } return isolate->heap()->undefined_value(); } // Initializes a typed array from an array-like object. // If an array-like object happens to be a typed array of the same type, // initializes backing store using memove. // // Returns true if backing store was initialized or false otherwise. RUNTIME_FUNCTION(Runtime_TypedArrayInitializeFromArrayLike) { HandleScope scope(isolate); DCHECK(args.length() == 4); CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0); CONVERT_SMI_ARG_CHECKED(arrayId, 1); CONVERT_ARG_HANDLE_CHECKED(Object, source, 2); CONVERT_NUMBER_ARG_HANDLE_CHECKED(length_obj, 3); RUNTIME_ASSERT(arrayId >= Runtime::ARRAY_ID_FIRST && arrayId <= Runtime::ARRAY_ID_LAST); ExternalArrayType array_type = kExternalInt8Array; // Bogus initialization. size_t element_size = 1; // Bogus initialization. ElementsKind fixed_elements_kind = INT8_ELEMENTS; // Bogus initialization. Runtime::ArrayIdToTypeAndSize(arrayId, &array_type, &fixed_elements_kind, &element_size); RUNTIME_ASSERT(holder->map()->elements_kind() == fixed_elements_kind); Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer(); size_t length = 0; if (source->IsJSTypedArray() && JSTypedArray::cast(*source)->type() == array_type) { length_obj = handle(JSTypedArray::cast(*source)->length(), isolate); length = JSTypedArray::cast(*source)->length_value(); } else { RUNTIME_ASSERT(TryNumberToSize(isolate, *length_obj, &length)); } if ((length > static_cast<unsigned>(Smi::kMaxValue)) || (length > (kMaxInt / element_size))) { THROW_NEW_ERROR_RETURN_FAILURE( isolate, NewRangeError(MessageTemplate::kInvalidTypedArrayLength)); } size_t byte_length = length * element_size; DCHECK_EQ(v8::ArrayBufferView::kInternalFieldCount, holder->GetInternalFieldCount()); for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { holder->SetInternalField(i, Smi::FromInt(0)); } // NOTE: not initializing backing store. // We assume that the caller of this function will initialize holder // with the loop // for(i = 0; i < length; i++) { holder[i] = source[i]; } // We assume that the caller of this function is always a typed array // constructor. // If source is a typed array, this loop will always run to completion, // so we are sure that the backing store will be initialized. // Otherwise, the indexing operation might throw, so the loop will not // run to completion and the typed array might remain partly initialized. // However we further assume that the caller of this function is a typed array // constructor, and the exception will propagate out of the constructor, // therefore uninitialized memory will not be accessible by a user program. // // TODO(dslomov): revise this once we support subclassing. if (!JSArrayBuffer::SetupAllocatingData(buffer, isolate, byte_length, false)) { THROW_NEW_ERROR_RETURN_FAILURE( isolate, NewRangeError(MessageTemplate::kInvalidArrayBufferLength)); } holder->set_buffer(*buffer); holder->set_byte_offset(Smi::FromInt(0)); Handle<Object> byte_length_obj( isolate->factory()->NewNumberFromSize(byte_length)); holder->set_byte_length(*byte_length_obj); holder->set_length(*length_obj); Handle<FixedTypedArrayBase> elements = isolate->factory()->NewFixedTypedArrayWithExternalPointer( static_cast<int>(length), array_type, static_cast<uint8_t*>(buffer->backing_store())); holder->set_elements(*elements); if (source->IsJSTypedArray()) { Handle<JSTypedArray> typed_array(JSTypedArray::cast(*source)); if (typed_array->type() == holder->type()) { uint8_t* backing_store = static_cast<uint8_t*>(typed_array->GetBuffer()->backing_store()); size_t source_byte_offset = NumberToSize(isolate, typed_array->byte_offset()); memcpy(buffer->backing_store(), backing_store + source_byte_offset, byte_length); return isolate->heap()->true_value(); } } return isolate->heap()->false_value(); } #define BUFFER_VIEW_GETTER(Type, getter, accessor) \ RUNTIME_FUNCTION(Runtime_##Type##Get##getter) { \ HandleScope scope(isolate); \ DCHECK_EQ(1, args.length()); \ CONVERT_ARG_HANDLE_CHECKED(JS##Type, holder, 0); \ return holder->accessor(); \ } BUFFER_VIEW_GETTER(ArrayBufferView, ByteLength, byte_length) BUFFER_VIEW_GETTER(ArrayBufferView, ByteOffset, byte_offset) BUFFER_VIEW_GETTER(TypedArray, Length, length) BUFFER_VIEW_GETTER(DataView, Buffer, buffer) #undef BUFFER_VIEW_GETTER RUNTIME_FUNCTION(Runtime_TypedArrayGetBuffer) { HandleScope scope(isolate); DCHECK_EQ(1, args.length()); CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0); return *holder->GetBuffer(); } // Return codes for Runtime_TypedArraySetFastCases. // Should be synchronized with typedarray.js natives. enum TypedArraySetResultCodes { // Set from typed array of the same type. // This is processed by TypedArraySetFastCases TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE = 0, // Set from typed array of the different type, overlapping in memory. TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING = 1, // Set from typed array of the different type, non-overlapping. TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING = 2, // Set from non-typed array. TYPED_ARRAY_SET_NON_TYPED_ARRAY = 3 }; RUNTIME_FUNCTION(Runtime_TypedArraySetFastCases) { HandleScope scope(isolate); DCHECK(args.length() == 3); if (!args[0]->IsJSTypedArray()) { THROW_NEW_ERROR_RETURN_FAILURE( isolate, NewTypeError(MessageTemplate::kNotTypedArray)); } if (!args[1]->IsJSTypedArray()) return Smi::FromInt(TYPED_ARRAY_SET_NON_TYPED_ARRAY); CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, target_obj, 0); CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, source_obj, 1); CONVERT_NUMBER_ARG_HANDLE_CHECKED(offset_obj, 2); Handle<JSTypedArray> target(JSTypedArray::cast(*target_obj)); Handle<JSTypedArray> source(JSTypedArray::cast(*source_obj)); size_t offset = 0; RUNTIME_ASSERT(TryNumberToSize(isolate, *offset_obj, &offset)); size_t target_length = target->length_value(); size_t source_length = source->length_value(); size_t target_byte_length = NumberToSize(isolate, target->byte_length()); size_t source_byte_length = NumberToSize(isolate, source->byte_length()); if (offset > target_length || offset + source_length > target_length || offset + source_length < offset) { // overflow THROW_NEW_ERROR_RETURN_FAILURE( isolate, NewRangeError(MessageTemplate::kTypedArraySetSourceTooLarge)); } size_t target_offset = NumberToSize(isolate, target->byte_offset()); size_t source_offset = NumberToSize(isolate, source->byte_offset()); uint8_t* target_base = static_cast<uint8_t*>(target->GetBuffer()->backing_store()) + target_offset; uint8_t* source_base = static_cast<uint8_t*>(source->GetBuffer()->backing_store()) + source_offset; // Typed arrays of the same type: use memmove. if (target->type() == source->type()) { memmove(target_base + offset * target->element_size(), source_base, source_byte_length); return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE); } // Typed arrays of different types over the same backing store if ((source_base <= target_base && source_base + source_byte_length > target_base) || (target_base <= source_base && target_base + target_byte_length > source_base)) { // We do not support overlapping ArrayBuffers DCHECK(target->GetBuffer()->backing_store() == source->GetBuffer()->backing_store()); return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING); } else { // Non-overlapping typed arrays return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING); } } RUNTIME_FUNCTION(Runtime_TypedArrayMaxSizeInHeap) { DCHECK(args.length() == 0); DCHECK_OBJECT_SIZE(FLAG_typed_array_max_size_in_heap + FixedTypedArrayBase::kDataOffset); return Smi::FromInt(FLAG_typed_array_max_size_in_heap); } RUNTIME_FUNCTION(Runtime_IsTypedArray) { HandleScope scope(isolate); DCHECK(args.length() == 1); return isolate->heap()->ToBoolean(args[0]->IsJSTypedArray()); } RUNTIME_FUNCTION(Runtime_IsSharedTypedArray) { HandleScope scope(isolate); DCHECK(args.length() == 1); return isolate->heap()->ToBoolean( args[0]->IsJSTypedArray() && JSTypedArray::cast(args[0])->GetBuffer()->is_shared()); } RUNTIME_FUNCTION(Runtime_IsSharedIntegerTypedArray) { HandleScope scope(isolate); DCHECK(args.length() == 1); if (!args[0]->IsJSTypedArray()) { return isolate->heap()->false_value(); } Handle<JSTypedArray> obj(JSTypedArray::cast(args[0])); return isolate->heap()->ToBoolean(obj->GetBuffer()->is_shared() && obj->type() != kExternalFloat32Array && obj->type() != kExternalFloat64Array); } RUNTIME_FUNCTION(Runtime_IsSharedInteger32TypedArray) { HandleScope scope(isolate); DCHECK(args.length() == 1); if (!args[0]->IsJSTypedArray()) { return isolate->heap()->false_value(); } Handle<JSTypedArray> obj(JSTypedArray::cast(args[0])); return isolate->heap()->ToBoolean(obj->GetBuffer()->is_shared() && obj->type() == kExternalInt32Array); } RUNTIME_FUNCTION(Runtime_DataViewInitialize) { HandleScope scope(isolate); DCHECK(args.length() == 4); CONVERT_ARG_HANDLE_CHECKED(JSDataView, holder, 0); CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, buffer, 1); CONVERT_NUMBER_ARG_HANDLE_CHECKED(byte_offset, 2); CONVERT_NUMBER_ARG_HANDLE_CHECKED(byte_length, 3); DCHECK_EQ(v8::ArrayBufferView::kInternalFieldCount, holder->GetInternalFieldCount()); for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { holder->SetInternalField(i, Smi::FromInt(0)); } size_t buffer_length = 0; size_t offset = 0; size_t length = 0; RUNTIME_ASSERT( TryNumberToSize(isolate, buffer->byte_length(), &buffer_length)); RUNTIME_ASSERT(TryNumberToSize(isolate, *byte_offset, &offset)); RUNTIME_ASSERT(TryNumberToSize(isolate, *byte_length, &length)); // TODO(jkummerow): When we have a "safe numerics" helper class, use it here. // Entire range [offset, offset + length] must be in bounds. RUNTIME_ASSERT(offset <= buffer_length); RUNTIME_ASSERT(offset + length <= buffer_length); // No overflow. RUNTIME_ASSERT(offset + length >= offset); holder->set_buffer(*buffer); holder->set_byte_offset(*byte_offset); holder->set_byte_length(*byte_length); return isolate->heap()->undefined_value(); } inline static bool NeedToFlipBytes(bool is_little_endian) { #ifdef V8_TARGET_LITTLE_ENDIAN return !is_little_endian; #else return is_little_endian; #endif } template <int n> inline void CopyBytes(uint8_t* target, uint8_t* source) { for (int i = 0; i < n; i++) { *(target++) = *(source++); } } template <int n> inline void FlipBytes(uint8_t* target, uint8_t* source) { source = source + (n - 1); for (int i = 0; i < n; i++) { *(target++) = *(source--); } } template <typename T> inline static bool DataViewGetValue(Isolate* isolate, Handle<JSDataView> data_view, Handle<Object> byte_offset_obj, bool is_little_endian, T* result) { size_t byte_offset = 0; if (!TryNumberToSize(isolate, *byte_offset_obj, &byte_offset)) { return false; } Handle<JSArrayBuffer> buffer(JSArrayBuffer::cast(data_view->buffer())); size_t data_view_byte_offset = NumberToSize(isolate, data_view->byte_offset()); size_t data_view_byte_length = NumberToSize(isolate, data_view->byte_length()); if (byte_offset + sizeof(T) > data_view_byte_length || byte_offset + sizeof(T) < byte_offset) { // overflow return false; } union Value { T data; uint8_t bytes[sizeof(T)]; }; Value value; size_t buffer_offset = data_view_byte_offset + byte_offset; DCHECK(NumberToSize(isolate, buffer->byte_length()) >= buffer_offset + sizeof(T)); uint8_t* source = static_cast<uint8_t*>(buffer->backing_store()) + buffer_offset; if (NeedToFlipBytes(is_little_endian)) { FlipBytes<sizeof(T)>(value.bytes, source); } else { CopyBytes<sizeof(T)>(value.bytes, source); } *result = value.data; return true; } template <typename T> static bool DataViewSetValue(Isolate* isolate, Handle<JSDataView> data_view, Handle<Object> byte_offset_obj, bool is_little_endian, T data) { size_t byte_offset = 0; if (!TryNumberToSize(isolate, *byte_offset_obj, &byte_offset)) { return false; } Handle<JSArrayBuffer> buffer(JSArrayBuffer::cast(data_view->buffer())); size_t data_view_byte_offset = NumberToSize(isolate, data_view->byte_offset()); size_t data_view_byte_length = NumberToSize(isolate, data_view->byte_length()); if (byte_offset + sizeof(T) > data_view_byte_length || byte_offset + sizeof(T) < byte_offset) { // overflow return false; } union Value { T data; uint8_t bytes[sizeof(T)]; }; Value value; value.data = data; size_t buffer_offset = data_view_byte_offset + byte_offset; DCHECK(NumberToSize(isolate, buffer->byte_length()) >= buffer_offset + sizeof(T)); uint8_t* target = static_cast<uint8_t*>(buffer->backing_store()) + buffer_offset; if (NeedToFlipBytes(is_little_endian)) { FlipBytes<sizeof(T)>(target, value.bytes); } else { CopyBytes<sizeof(T)>(target, value.bytes); } return true; } #define DATA_VIEW_GETTER(TypeName, Type, Converter) \ RUNTIME_FUNCTION(Runtime_DataViewGet##TypeName) { \ HandleScope scope(isolate); \ DCHECK(args.length() == 3); \ CONVERT_ARG_HANDLE_CHECKED(JSDataView, holder, 0); \ CONVERT_NUMBER_ARG_HANDLE_CHECKED(offset, 1); \ CONVERT_BOOLEAN_ARG_CHECKED(is_little_endian, 2); \ Type result; \ if (DataViewGetValue(isolate, holder, offset, is_little_endian, \ &result)) { \ return *isolate->factory()->Converter(result); \ } else { \ THROW_NEW_ERROR_RETURN_FAILURE( \ isolate, \ NewRangeError(MessageTemplate::kInvalidDataViewAccessorOffset)); \ } \ } DATA_VIEW_GETTER(Uint8, uint8_t, NewNumberFromUint) DATA_VIEW_GETTER(Int8, int8_t, NewNumberFromInt) DATA_VIEW_GETTER(Uint16, uint16_t, NewNumberFromUint) DATA_VIEW_GETTER(Int16, int16_t, NewNumberFromInt) DATA_VIEW_GETTER(Uint32, uint32_t, NewNumberFromUint) DATA_VIEW_GETTER(Int32, int32_t, NewNumberFromInt) DATA_VIEW_GETTER(Float32, float, NewNumber) DATA_VIEW_GETTER(Float64, double, NewNumber) #undef DATA_VIEW_GETTER template <typename T> static T DataViewConvertValue(double value); template <> int8_t DataViewConvertValue<int8_t>(double value) { return static_cast<int8_t>(DoubleToInt32(value)); } template <> int16_t DataViewConvertValue<int16_t>(double value) { return static_cast<int16_t>(DoubleToInt32(value)); } template <> int32_t DataViewConvertValue<int32_t>(double value) { return DoubleToInt32(value); } template <> uint8_t DataViewConvertValue<uint8_t>(double value) { return static_cast<uint8_t>(DoubleToUint32(value)); } template <> uint16_t DataViewConvertValue<uint16_t>(double value) { return static_cast<uint16_t>(DoubleToUint32(value)); } template <> uint32_t DataViewConvertValue<uint32_t>(double value) { return DoubleToUint32(value); } template <> float DataViewConvertValue<float>(double value) { return static_cast<float>(value); } template <> double DataViewConvertValue<double>(double value) { return value; } #define DATA_VIEW_SETTER(TypeName, Type) \ RUNTIME_FUNCTION(Runtime_DataViewSet##TypeName) { \ HandleScope scope(isolate); \ DCHECK(args.length() == 4); \ CONVERT_ARG_HANDLE_CHECKED(JSDataView, holder, 0); \ CONVERT_NUMBER_ARG_HANDLE_CHECKED(offset, 1); \ CONVERT_NUMBER_ARG_HANDLE_CHECKED(value, 2); \ CONVERT_BOOLEAN_ARG_CHECKED(is_little_endian, 3); \ Type v = DataViewConvertValue<Type>(value->Number()); \ if (DataViewSetValue(isolate, holder, offset, is_little_endian, v)) { \ return isolate->heap()->undefined_value(); \ } else { \ THROW_NEW_ERROR_RETURN_FAILURE( \ isolate, \ NewRangeError(MessageTemplate::kInvalidDataViewAccessorOffset)); \ } \ } DATA_VIEW_SETTER(Uint8, uint8_t) DATA_VIEW_SETTER(Int8, int8_t) DATA_VIEW_SETTER(Uint16, uint16_t) DATA_VIEW_SETTER(Int16, int16_t) DATA_VIEW_SETTER(Uint32, uint32_t) DATA_VIEW_SETTER(Int32, int32_t) DATA_VIEW_SETTER(Float32, float) DATA_VIEW_SETTER(Float64, double) #undef DATA_VIEW_SETTER } // namespace internal } // namespace v8