"src/harmony-regexp.js",
"src/harmony-reflect.js",
"src/harmony-spread.js",
- "src/harmony-object.js"
+ "src/harmony-object.js",
+ "src/harmony-sharedarraybuffer.js"
]
outputs = [
*/
bool IsDataView() const;
+ /**
+ * Returns true if this value is a SharedArrayBuffer.
+ * This is an experimental feature.
+ */
+ bool IsSharedArrayBuffer() const;
+
+
V8_WARN_UNUSED_RESULT MaybeLocal<Boolean> ToBoolean(
Local<Context> context) const;
V8_WARN_UNUSED_RESULT MaybeLocal<Number> ToNumber(
ArrayBufferCreationMode mode = ArrayBufferCreationMode::kExternalized);
/**
- * Returns true if ArrayBuffer is extrenalized, that is, does not
+ * Returns true if ArrayBuffer is externalized, that is, does not
* own its memory block.
*/
bool IsExternal() const;
};
+/**
+ * An instance of the built-in SharedArrayBuffer constructor.
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT SharedArrayBuffer : public Object {
+ public:
+ /**
+ * The contents of an |SharedArrayBuffer|. Externalization of
+ * |SharedArrayBuffer| returns an instance of this class, populated, with a
+ * pointer to data and byte length.
+ *
+ * The Data pointer of SharedArrayBuffer::Contents is always allocated with
+ * |ArrayBuffer::Allocator::Allocate| by the allocator specified in
+ * v8::Isolate::CreateParams::array_buffer_allocator.
+ *
+ * This API is experimental and may change significantly.
+ */
+ class V8_EXPORT Contents { // NOLINT
+ public:
+ Contents() : data_(NULL), byte_length_(0) {}
+
+ void* Data() const { return data_; }
+ size_t ByteLength() const { return byte_length_; }
+
+ private:
+ void* data_;
+ size_t byte_length_;
+
+ friend class SharedArrayBuffer;
+ };
+
+
+ /**
+ * Data length in bytes.
+ */
+ size_t ByteLength() const;
+
+ /**
+ * Create a new SharedArrayBuffer. Allocate |byte_length| bytes.
+ * Allocated memory will be owned by a created SharedArrayBuffer and
+ * will be deallocated when it is garbage-collected,
+ * unless the object is externalized.
+ */
+ static Local<SharedArrayBuffer> New(Isolate* isolate, size_t byte_length);
+
+ /**
+ * Create a new SharedArrayBuffer over an existing memory block. The created
+ * array buffer is immediately in externalized state unless otherwise
+ * specified. The memory block will not be reclaimed when a created
+ * SharedArrayBuffer is garbage-collected.
+ */
+ static Local<SharedArrayBuffer> New(
+ Isolate* isolate, void* data, size_t byte_length,
+ ArrayBufferCreationMode mode = ArrayBufferCreationMode::kExternalized);
+
+ /**
+ * Returns true if SharedArrayBuffer is externalized, that is, does not
+ * own its memory block.
+ */
+ bool IsExternal() const;
+
+ /**
+ * Make this SharedArrayBuffer external. The pointer to underlying memory
+ * block and byte length are returned as |Contents| structure. After
+ * SharedArrayBuffer had been etxrenalized, it does no longer owns the memory
+ * block. The caller should take steps to free memory when it is no longer
+ * needed.
+ *
+ * The memory block is guaranteed to be allocated with |Allocator::Allocate|
+ * by the allocator specified in
+ * v8::Isolate::CreateParams::array_buffer_allocator.
+ *
+ */
+ Contents Externalize();
+
+ /**
+ * Get a pointer to the ArrayBuffer's underlying memory block without
+ * externalizing it. If the ArrayBuffer is not externalized, this pointer
+ * will become invalid as soon as the ArrayBuffer became garbage collected.
+ *
+ * The embedder should make sure to hold a strong reference to the
+ * ArrayBuffer while accessing this pointer.
+ *
+ * The memory block is guaranteed to be allocated with |Allocator::Allocate|
+ * by the allocator specified in
+ * v8::Isolate::CreateParams::array_buffer_allocator.
+ */
+ Contents GetContents();
+
+ V8_INLINE static SharedArrayBuffer* Cast(Value* obj);
+
+ static const int kInternalFieldCount = V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT;
+
+ private:
+ SharedArrayBuffer();
+ static void CheckCast(Value* obj);
+};
+
+
/**
* An instance of the built-in Date constructor (ECMA-262, 15.9).
*/
static const int kJSObjectHeaderSize = 3 * kApiPointerSize;
static const int kFixedArrayHeaderSize = 2 * kApiPointerSize;
static const int kContextHeaderSize = 2 * kApiPointerSize;
- static const int kContextEmbedderDataIndex = 79;
+ static const int kContextEmbedderDataIndex = 80;
static const int kFullStringRepresentationMask = 0x07;
static const int kStringEncodingMask = 0x4;
static const int kExternalTwoByteRepresentationTag = 0x02;
}
+SharedArrayBuffer* SharedArrayBuffer::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<SharedArrayBuffer*>(value);
+}
+
+
Function* Function::Cast(v8::Value* value) {
#ifdef V8_ENABLE_CHECKS
CheckCast(value);
bool Value::IsArrayBuffer() const {
- return Utils::OpenHandle(this)->IsJSArrayBuffer();
+ i::Handle<i::Object> obj = Utils::OpenHandle(this);
+ return obj->IsJSArrayBuffer() && !i::JSArrayBuffer::cast(*obj)->is_shared();
}
i::JSTypedArray::cast(*obj)->type() == i::kExternal##Type##Array; \
}
+
TYPED_ARRAYS(VALUE_IS_TYPED_ARRAY)
#undef VALUE_IS_TYPED_ARRAY
}
+bool Value::IsSharedArrayBuffer() const {
+ i::Handle<i::Object> obj = Utils::OpenHandle(this);
+ return obj->IsJSArrayBuffer() && i::JSArrayBuffer::cast(*obj)->is_shared();
+}
+
+
bool Value::IsObject() const {
return Utils::OpenHandle(this)->IsJSObject();
}
void v8::ArrayBuffer::CheckCast(Value* that) {
i::Handle<i::Object> obj = Utils::OpenHandle(that);
- Utils::ApiCheck(obj->IsJSArrayBuffer(),
- "v8::ArrayBuffer::Cast()",
- "Could not convert to ArrayBuffer");
+ Utils::ApiCheck(
+ obj->IsJSArrayBuffer() && !i::JSArrayBuffer::cast(*obj)->is_shared(),
+ "v8::ArrayBuffer::Cast()", "Could not convert to ArrayBuffer");
}
}
+void v8::SharedArrayBuffer::CheckCast(Value* that) {
+ i::Handle<i::Object> obj = Utils::OpenHandle(that);
+ Utils::ApiCheck(
+ obj->IsJSArrayBuffer() && i::JSArrayBuffer::cast(*obj)->is_shared(),
+ "v8::SharedArrayBuffer::Cast()",
+ "Could not convert to SharedArrayBuffer");
+}
+
+
void v8::Date::CheckCast(v8::Value* that) {
i::Handle<i::Object> obj = Utils::OpenHandle(that);
i::Isolate* isolate = NULL;
LOG_API(i_isolate, "v8::ArrayBuffer::New(size_t)");
ENTER_V8(i_isolate);
i::Handle<i::JSArrayBuffer> obj =
- i_isolate->factory()->NewJSArrayBuffer();
+ i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kNotShared);
i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length);
return Utils::ToLocal(obj);
}
LOG_API(i_isolate, "v8::ArrayBuffer::New(void*, size_t)");
ENTER_V8(i_isolate);
i::Handle<i::JSArrayBuffer> obj =
- i_isolate->factory()->NewJSArrayBuffer();
+ i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kNotShared);
i::Runtime::SetupArrayBuffer(i_isolate, obj,
mode == ArrayBufferCreationMode::kExternalized,
data, byte_length);
}
+bool v8::SharedArrayBuffer::IsExternal() const {
+ return Utils::OpenHandle(this)->is_external();
+}
+
+
+v8::SharedArrayBuffer::Contents v8::SharedArrayBuffer::Externalize() {
+ i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this);
+ i::Isolate* isolate = self->GetIsolate();
+ Utils::ApiCheck(!self->is_external(), "v8::SharedArrayBuffer::Externalize",
+ "SharedArrayBuffer already externalized");
+ self->set_is_external(true);
+ isolate->heap()->UnregisterArrayBuffer(self->backing_store());
+ return GetContents();
+}
+
+
+v8::SharedArrayBuffer::Contents v8::SharedArrayBuffer::GetContents() {
+ i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this);
+ size_t byte_length = static_cast<size_t>(self->byte_length()->Number());
+ Contents contents;
+ contents.data_ = self->backing_store();
+ contents.byte_length_ = byte_length;
+ return contents;
+}
+
+
+size_t v8::SharedArrayBuffer::ByteLength() const {
+ i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this);
+ return static_cast<size_t>(obj->byte_length()->Number());
+}
+
+
+Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(Isolate* isolate,
+ size_t byte_length) {
+ i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
+ LOG_API(i_isolate, "v8::SharedArrayBuffer::New(size_t)");
+ ENTER_V8(i_isolate);
+ i::Handle<i::JSArrayBuffer> obj =
+ i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kShared);
+ i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length, true,
+ i::SharedFlag::kShared);
+ return Utils::ToLocalShared(obj);
+}
+
+
+Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(
+ Isolate* isolate, void* data, size_t byte_length,
+ ArrayBufferCreationMode mode) {
+ i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
+ LOG_API(i_isolate, "v8::SharedArrayBuffer::New(void*, size_t)");
+ ENTER_V8(i_isolate);
+ i::Handle<i::JSArrayBuffer> obj =
+ i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kShared);
+ i::Runtime::SetupArrayBuffer(i_isolate, obj,
+ mode == ArrayBufferCreationMode::kExternalized,
+ data, byte_length, i::SharedFlag::kShared);
+ return Utils::ToLocalShared(obj);
+}
+
+
Local<Symbol> v8::Symbol::New(Isolate* isolate, Local<String> name) {
i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
LOG_API(i_isolate, "Symbol::New()");
V(Float32Array, JSTypedArray) \
V(Float64Array, JSTypedArray) \
V(DataView, JSDataView) \
+ V(SharedArrayBuffer, JSArrayBuffer) \
V(Name, Name) \
V(String, String) \
V(Symbol, Symbol) \
static inline Local<Float64Array> ToLocalFloat64Array(
v8::internal::Handle<v8::internal::JSTypedArray> obj);
+ static inline Local<SharedArrayBuffer> ToLocalShared(
+ v8::internal::Handle<v8::internal::JSArrayBuffer> obj);
+
static inline Local<Message> MessageToLocal(
v8::internal::Handle<v8::internal::Object> obj);
static inline Local<Promise> PromiseToLocal(
MAKE_TO_LOCAL(ToLocal, JSArrayBufferView, ArrayBufferView)
MAKE_TO_LOCAL(ToLocal, JSDataView, DataView)
MAKE_TO_LOCAL(ToLocal, JSTypedArray, TypedArray)
+MAKE_TO_LOCAL(ToLocalShared, JSArrayBuffer, SharedArrayBuffer)
TYPED_ARRAYS(MAKE_TO_LOCAL_TYPED_ARRAY)
function ArrayBufferConstructor(length) { // length = 1
if (%_IsConstructCall()) {
var byteLength = $toPositiveInteger(length, kInvalidArrayBufferLength);
- %ArrayBufferInitialize(this, byteLength);
+ %ArrayBufferInitialize(this, byteLength, kNotShared);
} else {
throw MakeTypeError(kConstructorNotFunction, "ArrayBuffer");
}
EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_destructuring)
EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_object)
EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_spread_arrays)
+EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_sharedarraybuffer)
void Genesis::InstallNativeFunctions_harmony_proxies() {
}
+void Genesis::InitializeGlobal_harmony_sharedarraybuffer() {
+ if (!FLAG_harmony_sharedarraybuffer) return;
+
+ Handle<JSGlobalObject> global(
+ JSGlobalObject::cast(native_context()->global_object()));
+
+ Handle<JSFunction> shared_array_buffer_fun = InstallFunction(
+ global, "SharedArrayBuffer", JS_ARRAY_BUFFER_TYPE,
+ JSArrayBuffer::kSizeWithInternalFields,
+ isolate()->initial_object_prototype(), Builtins::kIllegal);
+ native_context()->set_shared_array_buffer_fun(*shared_array_buffer_fun);
+}
+
+
Handle<JSFunction> Genesis::InstallInternalArray(Handle<JSObject> target,
const char* name,
ElementsKind elements_kind) {
static const char* harmony_object_natives[] = {"native harmony-object.js",
NULL};
static const char* harmony_spread_arrays_natives[] = {nullptr};
+ static const char* harmony_sharedarraybuffer_natives[] = {
+ "native harmony-sharedarraybuffer.js", NULL};
for (int i = ExperimentalNatives::GetDebuggerCount();
i < ExperimentalNatives::GetBuiltinsCount(); i++) {
V(TO_LENGTH_FUN_INDEX, JSFunction, to_length_fun) \
V(GLOBAL_EVAL_FUN_INDEX, JSFunction, global_eval_fun) \
V(ARRAY_BUFFER_FUN_INDEX, JSFunction, array_buffer_fun) \
+ V(SHARED_ARRAY_BUFFER_FUN_INDEX, JSFunction, shared_array_buffer_fun) \
V(ARRAY_BUFFER_MAP_INDEX, Map, array_buffer_map) \
V(UINT8_ARRAY_FUN_INDEX, JSFunction, uint8_array_fun) \
V(INT8_ARRAY_FUN_INDEX, JSFunction, int8_array_fun) \
FLOAT64_ARRAY_EXTERNAL_MAP_INDEX,
UINT8_CLAMPED_ARRAY_EXTERNAL_MAP_INDEX,
DATA_VIEW_FUN_INDEX,
+ SHARED_ARRAY_BUFFER_FUN_INDEX,
MESSAGE_LISTENERS_INDEX,
MAKE_MESSAGE_FUN_INDEX,
GET_STACK_TRACE_LINE_INDEX,
}
-Handle<JSArrayBuffer> Factory::NewJSArrayBuffer() {
+Handle<JSArrayBuffer> Factory::NewJSArrayBuffer(SharedFlag shared) {
Handle<JSFunction> array_buffer_fun(
- isolate()->native_context()->array_buffer_fun());
+ shared == SharedFlag::kShared
+ ? isolate()->native_context()->shared_array_buffer_fun()
+ : isolate()->native_context()->array_buffer_fun());
CALL_HEAP_FUNCTION(
isolate(),
isolate()->heap()->AllocateJSObject(*array_buffer_fun),
obj->set_length(*length_object);
Handle<JSArrayBuffer> buffer = isolate()->factory()->NewJSArrayBuffer();
- Runtime::SetupArrayBuffer(isolate(), buffer, true, NULL, byte_length);
+ Runtime::SetupArrayBuffer(isolate(), buffer, true, NULL, byte_length,
+ SharedFlag::kNotShared);
obj->set_buffer(*buffer);
Handle<FixedTypedArrayBase> elements =
isolate()->factory()->NewFixedTypedArray(
Handle<JSGeneratorObject> NewJSGeneratorObject(Handle<JSFunction> function);
- Handle<JSArrayBuffer> NewJSArrayBuffer();
+ Handle<JSArrayBuffer> NewJSArrayBuffer(
+ SharedFlag shared = SharedFlag::kNotShared);
Handle<JSTypedArray> NewJSTypedArray(ExternalArrayType type);
V(harmony_unicode_regexps, "harmony unicode regexps") \
V(harmony_reflect, "harmony Reflect API") \
V(harmony_destructuring, "harmony destructuring") \
- V(harmony_spread_arrays, "harmony spread in array literals")
+ V(harmony_spread_arrays, "harmony spread in array literals") \
+ V(harmony_sharedarraybuffer, "harmony sharedarraybuffer")
// Features that are complete (but still behind --harmony/es-staging flag).
#define HARMONY_STAGED(V) \
--- /dev/null
+// Copyright 2015 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.
+
+(function(global, shared, exports) {
+
+"use strict";
+
+%CheckIsBootstrapping();
+
+var GlobalSharedArrayBuffer = global.SharedArrayBuffer;
+var GlobalObject = global.Object;
+
+// -------------------------------------------------------------------
+
+function SharedArrayBufferConstructor(length) { // length = 1
+ if (%_IsConstructCall()) {
+ var byteLength = $toPositiveInteger(length, kInvalidArrayBufferLength);
+ %ArrayBufferInitialize(this, byteLength, kShared);
+ } else {
+ throw MakeTypeError(kConstructorNotFunction, "SharedArrayBuffer");
+ }
+}
+
+function SharedArrayBufferGetByteLen() {
+ if (!IS_SHAREDARRAYBUFFER(this)) {
+ throw MakeTypeError(kIncompatibleMethodReceiver,
+ 'SharedArrayBuffer.prototype.byteLength', this);
+ }
+ return %_ArrayBufferGetByteLength(this);
+}
+
+function SharedArrayBufferIsViewJS(obj) {
+ return %ArrayBufferIsView(obj);
+}
+
+
+// Set up the SharedArrayBuffer constructor function.
+%SetCode(GlobalSharedArrayBuffer, SharedArrayBufferConstructor);
+%FunctionSetPrototype(GlobalSharedArrayBuffer, new GlobalObject());
+
+// Set up the constructor property on the SharedArrayBuffer prototype object.
+%AddNamedProperty(GlobalSharedArrayBuffer.prototype, "constructor",
+ GlobalSharedArrayBuffer, DONT_ENUM);
+
+%AddNamedProperty(GlobalSharedArrayBuffer.prototype,
+ symbolToStringTag, "SharedArrayBuffer", DONT_ENUM | READ_ONLY);
+
+$installGetter(GlobalSharedArrayBuffer.prototype, "byteLength",
+ SharedArrayBufferGetByteLen);
+
+$installFunctions(GlobalSharedArrayBuffer, DONT_ENUM, [
+ "isView", SharedArrayBufferIsViewJS
+]);
+
+})
macro IS_GLOBAL(arg) = (%_ClassOf(arg) === 'global');
macro IS_ARRAYBUFFER(arg) = (%_ClassOf(arg) === 'ArrayBuffer');
macro IS_DATAVIEW(arg) = (%_ClassOf(arg) === 'DataView');
+macro IS_SHAREDARRAYBUFFER(arg) = (%_ClassOf(arg) === 'SharedArrayBuffer');
macro IS_GENERATOR(arg) = (%_ClassOf(arg) === 'Generator');
macro IS_SET_ITERATOR(arg) = (%_ClassOf(arg) === 'Set Iterator');
macro IS_MAP_ITERATOR(arg) = (%_ClassOf(arg) === 'Map Iterator');
define DEBUG_IS_ACTIVE = (%_DebugIsActive() != 0);
macro DEBUG_IS_STEPPING(function) = (%_DebugIsActive() != 0 && %DebugCallbackSupportsStepping(function));
macro DEBUG_PREPARE_STEP_IN_IF_STEPPING(function) = if (DEBUG_IS_STEPPING(function)) %DebugPrepareStepInIfStepping(function);
+
+# SharedFlag equivalents
+define kNotShared = false;
+define kShared = true;
}
+bool JSArrayBuffer::is_shared() { return IsShared::decode(bit_field()); }
+
+
+void JSArrayBuffer::set_is_shared(bool value) {
+ set_bit_field(IsShared::update(bit_field(), value));
+}
+
+
Object* JSArrayBufferView::byte_offset() const {
if (WasNeutered()) return Smi::FromInt(0);
return Object::cast(READ_FIELD(this, kByteOffsetOffset));
};
+// Whether a JSArrayBuffer is a SharedArrayBuffer or not.
+enum class SharedFlag { kNotShared, kShared };
+
+
class JSArrayBuffer: public JSObject {
public:
// [backing_store]: backing memory for this array
inline bool was_neutered();
inline void set_was_neutered(bool value);
+ inline bool is_shared();
+ inline void set_is_shared(bool value);
+
DECLARE_CAST(JSArrayBuffer)
void Neuter();
class IsExternal : public BitField<bool, 1, 1> {};
class IsNeuterable : public BitField<bool, 2, 1> {};
class WasNeutered : public BitField<bool, 3, 1> {};
+ class IsShared : public BitField<bool, 4, 1> {};
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(JSArrayBuffer);
void Runtime::SetupArrayBuffer(Isolate* isolate,
Handle<JSArrayBuffer> array_buffer,
bool is_external, void* data,
- size_t allocated_length) {
+ size_t allocated_length, SharedFlag shared) {
DCHECK(array_buffer->GetInternalFieldCount() ==
v8::ArrayBuffer::kInternalFieldCount);
for (int i = 0; i < v8::ArrayBuffer::kInternalFieldCount; i++) {
array_buffer->set_backing_store(data);
array_buffer->set_bit_field(0);
array_buffer->set_is_external(is_external);
- array_buffer->set_is_neuterable(true);
+ array_buffer->set_is_neuterable(shared == SharedFlag::kNotShared);
+ array_buffer->set_is_shared(shared == SharedFlag::kShared);
Handle<Object> byte_length =
isolate->factory()->NewNumberFromSize(allocated_length);
bool Runtime::SetupArrayBufferAllocatingData(Isolate* isolate,
Handle<JSArrayBuffer> array_buffer,
size_t allocated_length,
- bool initialize) {
+ bool initialize,
+ SharedFlag shared) {
void* data;
CHECK(isolate->array_buffer_allocator() != NULL);
// Prevent creating array buffers when serializing.
data = NULL;
}
- SetupArrayBuffer(isolate, array_buffer, false, data, allocated_length);
+ SetupArrayBuffer(isolate, array_buffer, false, data, allocated_length,
+ shared);
return true;
}
RUNTIME_FUNCTION(Runtime_ArrayBufferInitialize) {
HandleScope scope(isolate);
- DCHECK(args.length() == 2);
+ DCHECK(args.length() == 3);
CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, holder, 0);
CONVERT_NUMBER_ARG_HANDLE_CHECKED(byteLength, 1);
+ CONVERT_BOOLEAN_ARG_CHECKED(is_shared, 2);
if (!holder->byte_length()->IsUndefined()) {
// ArrayBuffer is already initialized; probably a fuzz test.
return *holder;
THROW_NEW_ERROR_RETURN_FAILURE(
isolate, NewRangeError(MessageTemplate::kInvalidArrayBufferLength));
}
- if (!Runtime::SetupArrayBufferAllocatingData(isolate, holder,
- allocated_length)) {
+ if (!Runtime::SetupArrayBufferAllocatingData(
+ isolate, holder, allocated_length, true,
+ is_shared ? SharedFlag::kShared : SharedFlag::kNotShared)) {
THROW_NEW_ERROR_RETURN_FAILURE(
isolate, NewRangeError(MessageTemplate::kInvalidArrayBufferLength));
}
CHECK(Smi::FromInt(0) == array_buffer->byte_length());
return isolate->heap()->undefined_value();
}
+ // Shared array buffers should never be neutered.
+ DCHECK(!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());
DCHECK(IsExternalArrayElementsKind(holder->map()->elements_kind()));
} else {
Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer();
- Runtime::SetupArrayBuffer(isolate, buffer, true, NULL, byte_length);
+ Runtime::SetupArrayBuffer(isolate, buffer, true, NULL, byte_length,
+ SharedFlag::kNotShared);
holder->set_buffer(*buffer);
Handle<FixedTypedArrayBase> elements =
isolate->factory()->NewFixedTypedArray(static_cast<int>(length),
#define FOR_EACH_INTRINSIC_TYPEDARRAY(F) \
- F(ArrayBufferInitialize, 2, 1) \
+ F(ArrayBufferInitialize, 3, 1) \
F(ArrayBufferGetByteLength, 1, 1) \
F(ArrayBufferSliceImpl, 3, 1) \
F(ArrayBufferIsView, 1, 1) \
static void SetupArrayBuffer(Isolate* isolate,
Handle<JSArrayBuffer> array_buffer,
bool is_external, void* data,
- size_t allocated_length);
+ size_t allocated_length,
+ SharedFlag shared = SharedFlag::kNotShared);
- static bool SetupArrayBufferAllocatingData(Isolate* isolate,
- Handle<JSArrayBuffer> array_buffer,
- size_t allocated_length,
- bool initialize = true);
+ static bool SetupArrayBufferAllocatingData(
+ Isolate* isolate, Handle<JSArrayBuffer> array_buffer,
+ size_t allocated_length, bool initialize = true,
+ SharedFlag shared = SharedFlag::kNotShared);
static void NeuterArrayBuffer(Handle<JSArrayBuffer> array_buffer);
function NAMEConstructor(arg1, arg2, arg3) {
if (%_IsConstructCall()) {
- if (IS_ARRAYBUFFER(arg1)) {
+ if (IS_ARRAYBUFFER(arg1) || IS_SHAREDARRAYBUFFER(arg1)) {
NAMEConstructByArrayBuffer(this, arg1, arg2, arg3);
} else if (IS_NUMBER(arg1) || IS_STRING(arg1) ||
IS_BOOLEAN(arg1) || IS_UNDEFINED(arg1)) {
function DataViewConstructor(buffer, byteOffset, byteLength) { // length = 3
if (%_IsConstructCall()) {
+ // TODO(binji): support SharedArrayBuffers?
if (!IS_ARRAYBUFFER(buffer)) throw MakeTypeError(kDataViewNotArrayBuffer);
if (!IS_UNDEFINED(byteOffset)) {
byteOffset = $toPositiveInteger(byteOffset, kInvalidDataViewOffset);
}
+class ScopedSharedArrayBufferContents {
+ public:
+ explicit ScopedSharedArrayBufferContents(
+ const v8::SharedArrayBuffer::Contents& contents)
+ : contents_(contents) {}
+ ~ScopedSharedArrayBufferContents() { free(contents_.Data()); }
+ void* Data() const { return contents_.Data(); }
+ size_t ByteLength() const { return contents_.ByteLength(); }
+
+ private:
+ const v8::SharedArrayBuffer::Contents contents_;
+};
+
+
+THREADED_TEST(SharedArrayBuffer_ApiInternalToExternal) {
+ i::FLAG_harmony_sharedarraybuffer = true;
+ LocalContext env;
+ v8::Isolate* isolate = env->GetIsolate();
+ v8::HandleScope handle_scope(isolate);
+
+ Local<v8::SharedArrayBuffer> ab = v8::SharedArrayBuffer::New(isolate, 1024);
+ CheckInternalFieldsAreZero(ab);
+ CHECK_EQ(1024, static_cast<int>(ab->ByteLength()));
+ CHECK(!ab->IsExternal());
+ CcTest::heap()->CollectAllGarbage();
+
+ ScopedSharedArrayBufferContents ab_contents(ab->Externalize());
+ CHECK(ab->IsExternal());
+
+ CHECK_EQ(1024, static_cast<int>(ab_contents.ByteLength()));
+ uint8_t* data = static_cast<uint8_t*>(ab_contents.Data());
+ DCHECK(data != NULL);
+ env->Global()->Set(v8_str("ab"), ab);
+
+ v8::Handle<v8::Value> result = CompileRun("ab.byteLength");
+ CHECK_EQ(1024, result->Int32Value());
+
+ result = CompileRun(
+ "var u8 = new Uint8Array(ab);"
+ "u8[0] = 0xFF;"
+ "u8[1] = 0xAA;"
+ "u8.length");
+ CHECK_EQ(1024, result->Int32Value());
+ CHECK_EQ(0xFF, data[0]);
+ CHECK_EQ(0xAA, data[1]);
+ data[0] = 0xCC;
+ data[1] = 0x11;
+ result = CompileRun("u8[0] + u8[1]");
+ CHECK_EQ(0xDD, result->Int32Value());
+}
+
+
+THREADED_TEST(SharedArrayBuffer_JSInternalToExternal) {
+ i::FLAG_harmony_sharedarraybuffer = true;
+ LocalContext env;
+ v8::Isolate* isolate = env->GetIsolate();
+ v8::HandleScope handle_scope(isolate);
+
+
+ v8::Local<v8::Value> result = CompileRun(
+ "var ab1 = new SharedArrayBuffer(2);"
+ "var u8_a = new Uint8Array(ab1);"
+ "u8_a[0] = 0xAA;"
+ "u8_a[1] = 0xFF; u8_a.buffer");
+ Local<v8::SharedArrayBuffer> ab1 = Local<v8::SharedArrayBuffer>::Cast(result);
+ CheckInternalFieldsAreZero(ab1);
+ CHECK_EQ(2, static_cast<int>(ab1->ByteLength()));
+ CHECK(!ab1->IsExternal());
+ ScopedSharedArrayBufferContents ab1_contents(ab1->Externalize());
+ CHECK(ab1->IsExternal());
+
+ result = CompileRun("ab1.byteLength");
+ CHECK_EQ(2, result->Int32Value());
+ result = CompileRun("u8_a[0]");
+ CHECK_EQ(0xAA, result->Int32Value());
+ result = CompileRun("u8_a[1]");
+ CHECK_EQ(0xFF, result->Int32Value());
+ result = CompileRun(
+ "var u8_b = new Uint8Array(ab1);"
+ "u8_b[0] = 0xBB;"
+ "u8_a[0]");
+ CHECK_EQ(0xBB, result->Int32Value());
+ result = CompileRun("u8_b[1]");
+ CHECK_EQ(0xFF, result->Int32Value());
+
+ CHECK_EQ(2, static_cast<int>(ab1_contents.ByteLength()));
+ uint8_t* ab1_data = static_cast<uint8_t*>(ab1_contents.Data());
+ CHECK_EQ(0xBB, ab1_data[0]);
+ CHECK_EQ(0xFF, ab1_data[1]);
+ ab1_data[0] = 0xCC;
+ ab1_data[1] = 0x11;
+ result = CompileRun("u8_a[0] + u8_a[1]");
+ CHECK_EQ(0xDD, result->Int32Value());
+}
+
+
+THREADED_TEST(SharedArrayBuffer_External) {
+ i::FLAG_harmony_sharedarraybuffer = true;
+ LocalContext env;
+ v8::Isolate* isolate = env->GetIsolate();
+ v8::HandleScope handle_scope(isolate);
+
+ i::ScopedVector<uint8_t> my_data(100);
+ memset(my_data.start(), 0, 100);
+ Local<v8::SharedArrayBuffer> ab3 =
+ v8::SharedArrayBuffer::New(isolate, my_data.start(), 100);
+ CheckInternalFieldsAreZero(ab3);
+ CHECK_EQ(100, static_cast<int>(ab3->ByteLength()));
+ CHECK(ab3->IsExternal());
+
+ env->Global()->Set(v8_str("ab3"), ab3);
+
+ v8::Handle<v8::Value> result = CompileRun("ab3.byteLength");
+ CHECK_EQ(100, result->Int32Value());
+
+ result = CompileRun(
+ "var u8_b = new Uint8Array(ab3);"
+ "u8_b[0] = 0xBB;"
+ "u8_b[1] = 0xCC;"
+ "u8_b.length");
+ CHECK_EQ(100, result->Int32Value());
+ CHECK_EQ(0xBB, my_data[0]);
+ CHECK_EQ(0xCC, my_data[1]);
+ my_data[0] = 0xCC;
+ my_data[1] = 0x11;
+ result = CompileRun("u8_b[0] + u8_b[1]");
+ CHECK_EQ(0xDD, result->Int32Value());
+}
+
+
THREADED_TEST(HiddenProperties) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
--- /dev/null
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --harmony-sharedarraybuffer
+
+// SharedArrayBuffer
+
+function TestByteLength(param, expectedByteLength) {
+ var sab = new SharedArrayBuffer(param);
+ assertSame(expectedByteLength, sab.byteLength);
+}
+
+function TestArrayBufferCreation() {
+ TestByteLength(1, 1);
+ TestByteLength(256, 256);
+ TestByteLength(2.567, 2);
+
+ TestByteLength("abc", 0);
+
+ TestByteLength(0, 0);
+
+ assertThrows(function() { new SharedArrayBuffer(-10); }, RangeError);
+ assertThrows(function() { new SharedArrayBuffer(-2.567); }, RangeError);
+
+/* TODO[dslomov]: Reenable the test
+ assertThrows(function() {
+ var ab1 = new SharedArrayBuffer(0xFFFFFFFFFFFF)
+ }, RangeError);
+*/
+
+ var sab = new SharedArrayBuffer();
+ assertSame(0, sab.byteLength);
+ assertEquals("[object SharedArrayBuffer]",
+ Object.prototype.toString.call(sab));
+}
+
+TestArrayBufferCreation();
+
+function TestByteLengthNotWritable() {
+ var sab = new SharedArrayBuffer(1024);
+ assertSame(1024, sab.byteLength);
+
+ assertThrows(function() { "use strict"; sab.byteLength = 42; }, TypeError);
+}
+
+TestByteLengthNotWritable();
+
+function TestArrayBufferNoSlice() {
+ var sab = new SharedArrayBuffer(10);
+ assertEquals(undefined, sab.slice);
+}
+
+TestArrayBufferNoSlice();
+
+// Typed arrays using SharedArrayBuffers
+
+// TODO(binji): how many of these tests are necessary if there are no new
+// TypedArray types?
+
+function MakeSharedTypedArray(constr, numElements) {
+ var sab = new SharedArrayBuffer(constr.BYTES_PER_ELEMENT * numElements);
+ return new constr(sab);
+}
+
+function TestTypedArray(constr, elementSize, typicalElement) {
+ assertSame(elementSize, constr.BYTES_PER_ELEMENT);
+
+ var sab = new SharedArrayBuffer(256*elementSize);
+
+ var a0 = new constr(30);
+ assertEquals("[object " + constr.name + "]",
+ Object.prototype.toString.call(a0));
+
+ // TODO(binji): Should this return false here? It is a view, but it doesn't
+ // view a SharedArrayBuffer...
+ assertTrue(SharedArrayBuffer.isView(a0));
+ assertSame(elementSize, a0.BYTES_PER_ELEMENT);
+ assertSame(30, a0.length);
+ assertSame(30*elementSize, a0.byteLength);
+ assertSame(0, a0.byteOffset);
+ assertSame(30*elementSize, a0.buffer.byteLength);
+
+ var aOverBufferLen0 = new constr(sab, 128*elementSize, 0);
+ assertSame(sab, aOverBufferLen0.buffer);
+ assertSame(elementSize, aOverBufferLen0.BYTES_PER_ELEMENT);
+ assertSame(0, aOverBufferLen0.length);
+ assertSame(0, aOverBufferLen0.byteLength);
+ assertSame(128*elementSize, aOverBufferLen0.byteOffset);
+
+ var a1 = new constr(sab, 128*elementSize, 128);
+ assertSame(sab, a1.buffer);
+ assertSame(elementSize, a1.BYTES_PER_ELEMENT);
+ assertSame(128, a1.length);
+ assertSame(128*elementSize, a1.byteLength);
+ assertSame(128*elementSize, a1.byteOffset);
+
+
+ var a2 = new constr(sab, 64*elementSize, 128);
+ assertSame(sab, a2.buffer);
+ assertSame(elementSize, a2.BYTES_PER_ELEMENT);
+ assertSame(128, a2.length);
+ assertSame(128*elementSize, a2.byteLength);
+ assertSame(64*elementSize, a2.byteOffset);
+
+ var a3 = new constr(sab, 192*elementSize);
+ assertSame(sab, a3.buffer);
+ assertSame(64, a3.length);
+ assertSame(64*elementSize, a3.byteLength);
+ assertSame(192*elementSize, a3.byteOffset);
+
+ var a4 = new constr(sab);
+ assertSame(sab, a4.buffer);
+ assertSame(256, a4.length);
+ assertSame(256*elementSize, a4.byteLength);
+ assertSame(0, a4.byteOffset);
+
+
+ var i;
+ for (i = 0; i < 128; i++) {
+ a1[i] = typicalElement;
+ }
+
+ for (i = 0; i < 128; i++) {
+ assertSame(typicalElement, a1[i]);
+ }
+
+ for (i = 0; i < 64; i++) {
+ assertSame(0, a2[i]);
+ }
+
+ for (i = 64; i < 128; i++) {
+ assertSame(typicalElement, a2[i]);
+ }
+
+ for (i = 0; i < 64; i++) {
+ assertSame(typicalElement, a3[i]);
+ }
+
+ for (i = 0; i < 128; i++) {
+ assertSame(0, a4[i]);
+ }
+
+ for (i = 128; i < 256; i++) {
+ assertSame(typicalElement, a4[i]);
+ }
+
+ var aAtTheEnd = new constr(sab, 256*elementSize);
+ assertSame(elementSize, aAtTheEnd.BYTES_PER_ELEMENT);
+ assertSame(0, aAtTheEnd.length);
+ assertSame(0, aAtTheEnd.byteLength);
+ assertSame(256*elementSize, aAtTheEnd.byteOffset);
+
+ assertThrows(function () { new constr(sab, 257*elementSize); }, RangeError);
+ assertThrows(
+ function () { new constr(sab, 128*elementSize, 192); },
+ RangeError);
+
+ if (elementSize !== 1) {
+ assertThrows(function() { new constr(sab, 128*elementSize - 1, 10); },
+ RangeError);
+ var unalignedArrayBuffer = new SharedArrayBuffer(10*elementSize + 1);
+ var goodArray = new constr(unalignedArrayBuffer, 0, 10);
+ assertSame(10, goodArray.length);
+ assertSame(10*elementSize, goodArray.byteLength);
+ assertThrows(function() { new constr(unalignedArrayBuffer)}, RangeError);
+ assertThrows(function() { new constr(unalignedArrayBuffer, 5*elementSize)},
+ RangeError);
+ }
+
+ var abLen0 = new SharedArrayBuffer(0);
+ var aOverAbLen0 = new constr(abLen0);
+ assertSame(abLen0, aOverAbLen0.buffer);
+ assertSame(elementSize, aOverAbLen0.BYTES_PER_ELEMENT);
+ assertSame(0, aOverAbLen0.length);
+ assertSame(0, aOverAbLen0.byteLength);
+ assertSame(0, aOverAbLen0.byteOffset);
+
+ var a = new constr(sab, 64*elementSize, 128);
+ assertEquals("[object " + constr.name + "]",
+ Object.prototype.toString.call(a));
+ var desc = Object.getOwnPropertyDescriptor(
+ constr.prototype, Symbol.toStringTag);
+ assertTrue(desc.configurable);
+ assertFalse(desc.enumerable);
+ assertFalse(!!desc.writable);
+ assertFalse(!!desc.set);
+ assertEquals("function", typeof desc.get);
+}
+
+TestTypedArray(Uint8Array, 1, 0xFF);
+TestTypedArray(Int8Array, 1, -0x7F);
+TestTypedArray(Uint16Array, 2, 0xFFFF);
+TestTypedArray(Int16Array, 2, -0x7FFF);
+TestTypedArray(Uint32Array, 4, 0xFFFFFFFF);
+TestTypedArray(Int32Array, 4, -0x7FFFFFFF);
+TestTypedArray(Float32Array, 4, 0.5);
+TestTypedArray(Float64Array, 8, 0.5);
+TestTypedArray(Uint8ClampedArray, 1, 0xFF);
+
+
+function SubarrayTestCase(constructor, item, expectedResultLen,
+ expectedStartIndex, initialLen, start, end) {
+ var a = MakeSharedTypedArray(constructor, initialLen);
+ var s = a.subarray(start, end);
+ assertSame(constructor, s.constructor);
+ assertSame(expectedResultLen, s.length);
+ if (s.length > 0) {
+ s[0] = item;
+ assertSame(item, a[expectedStartIndex]);
+ }
+}
+
+function TestSubArray(constructor, item) {
+ SubarrayTestCase(constructor, item, 512, 512, 1024, 512, 1024);
+ SubarrayTestCase(constructor, item, 512, 512, 1024, 512);
+
+ SubarrayTestCase(constructor, item, 0, undefined, 0, 1, 20);
+ SubarrayTestCase(constructor, item, 100, 0, 100, 0, 100);
+ SubarrayTestCase(constructor, item, 100, 0, 100, 0, 1000);
+ SubarrayTestCase(constructor, item, 0, undefined, 100, 5, 1);
+
+ SubarrayTestCase(constructor, item, 1, 89, 100, -11, -10);
+ SubarrayTestCase(constructor, item, 9, 90, 100, -10, 99);
+ SubarrayTestCase(constructor, item, 0, undefined, 100, -10, 80);
+ SubarrayTestCase(constructor, item, 10,80, 100, 80, -10);
+
+ SubarrayTestCase(constructor, item, 10,90, 100, 90, "100");
+ SubarrayTestCase(constructor, item, 10,90, 100, "90", "100");
+
+ SubarrayTestCase(constructor, item, 0, undefined, 100, 90, "abc");
+ SubarrayTestCase(constructor, item, 10,0, 100, "abc", 10);
+
+ SubarrayTestCase(constructor, item, 10,0, 100, 0.96, 10.96);
+ SubarrayTestCase(constructor, item, 10,0, 100, 0.96, 10.01);
+ SubarrayTestCase(constructor, item, 10,0, 100, 0.01, 10.01);
+ SubarrayTestCase(constructor, item, 10,0, 100, 0.01, 10.96);
+
+
+ SubarrayTestCase(constructor, item, 10,90, 100, 90);
+ SubarrayTestCase(constructor, item, 10,90, 100, -10);
+}
+
+TestSubArray(Uint8Array, 0xFF);
+TestSubArray(Int8Array, -0x7F);
+TestSubArray(Uint16Array, 0xFFFF);
+TestSubArray(Int16Array, -0x7FFF);
+TestSubArray(Uint32Array, 0xFFFFFFFF);
+TestSubArray(Int32Array, -0x7FFFFFFF);
+TestSubArray(Float32Array, 0.5);
+TestSubArray(Float64Array, 0.5);
+TestSubArray(Uint8ClampedArray, 0xFF);
+
+function TestTypedArrayOutOfRange(constructor, value, result) {
+ var a = MakeSharedTypedArray(constructor, 1);
+ a[0] = value;
+ assertSame(result, a[0]);
+}
+
+TestTypedArrayOutOfRange(Uint8Array, 0x1FA, 0xFA);
+TestTypedArrayOutOfRange(Uint8Array, -1, 0xFF);
+
+TestTypedArrayOutOfRange(Int8Array, 0x1FA, 0x7A - 0x80);
+
+TestTypedArrayOutOfRange(Uint16Array, 0x1FFFA, 0xFFFA);
+TestTypedArrayOutOfRange(Uint16Array, -1, 0xFFFF);
+TestTypedArrayOutOfRange(Int16Array, 0x1FFFA, 0x7FFA - 0x8000);
+
+TestTypedArrayOutOfRange(Uint32Array, 0x1FFFFFFFA, 0xFFFFFFFA);
+TestTypedArrayOutOfRange(Uint32Array, -1, 0xFFFFFFFF);
+TestTypedArrayOutOfRange(Int32Array, 0x1FFFFFFFA, 0x7FFFFFFA - 0x80000000);
+
+TestTypedArrayOutOfRange(Uint8ClampedArray, 0x1FA, 0xFF);
+TestTypedArrayOutOfRange(Uint8ClampedArray, -1, 0);
+
+var typedArrayConstructors = [
+ Uint8Array,
+ Int8Array,
+ Uint16Array,
+ Int16Array,
+ Uint32Array,
+ Int32Array,
+ Uint8ClampedArray,
+ Float32Array,
+ Float64Array];
+
+function TestPropertyTypeChecks(constructor) {
+ function CheckProperty(name) {
+ var d = Object.getOwnPropertyDescriptor(constructor.prototype, name);
+ var o = {};
+ assertThrows(function() {d.get.call(o);}, TypeError);
+ for (var i = 0; i < typedArrayConstructors.length; i++) {
+ var ctor = typedArrayConstructors[i];
+ var a = MakeSharedTypedArray(ctor, 10);
+ if (ctor === constructor) {
+ d.get.call(a); // shouldn't throw
+ } else {
+ assertThrows(function() {d.get.call(a);}, TypeError);
+ }
+ }
+ }
+
+ CheckProperty("buffer");
+ CheckProperty("byteOffset");
+ CheckProperty("byteLength");
+ CheckProperty("length");
+}
+
+for(i = 0; i < typedArrayConstructors.length; i++) {
+ TestPropertyTypeChecks(typedArrayConstructors[i]);
+}
+
+function TestTypedArraySet() {
+ // Test array.set in different combinations.
+
+ function assertArrayPrefix(expected, array) {
+ for (var i = 0; i < expected.length; ++i) {
+ assertEquals(expected[i], array[i]);
+ }
+ }
+
+ // SharedTypedArrays don't allow initialization via array-like
+ function initializeFromArray(constructor, array) {
+ var buffer = MakeSharedTypedArray(constructor, array.length);
+ for (var i = 0; i < array.length; ++i) {
+ buffer[i] = array[i];
+ }
+ return buffer;
+ }
+
+ var a11 = initializeFromArray(Int16Array, [1, 2, 3, 4, 0, -1])
+ var a12 = MakeSharedTypedArray(Uint16Array, 15);
+ a12.set(a11, 3)
+ assertArrayPrefix([0, 0, 0, 1, 2, 3, 4, 0, 0xffff, 0, 0], a12)
+ assertThrows(function(){ a11.set(a12) })
+
+ var a21 = [1, undefined, 10, NaN, 0, -1, {valueOf: function() {return 3}}]
+ var a22 = MakeSharedTypedArray(Int32Array, 12)
+ a22.set(a21, 2)
+ assertArrayPrefix([0, 0, 1, 0, 10, 0, 0, -1, 3, 0], a22)
+
+ var a31 = initializeFromArray(Float32Array, [2, 4, 6, 8, 11, NaN, 1/0, -3])
+ var a32 = a31.subarray(2, 6)
+ a31.set(a32, 4)
+ assertArrayPrefix([2, 4, 6, 8, 6, 8, 11, NaN], a31)
+ assertArrayPrefix([6, 8, 6, 8], a32)
+
+ var a4 = initializeFromArray(Uint8ClampedArray, [3,2,5,6])
+ a4.set(a4)
+ assertArrayPrefix([3, 2, 5, 6], a4)
+
+ // Cases with overlapping backing store but different element sizes.
+ var b = new SharedArrayBuffer(4)
+ var a5 = new Int16Array(b)
+ var a50 = new Int8Array(b)
+ var a51 = new Int8Array(b, 0, 2)
+ var a52 = new Int8Array(b, 1, 2)
+ var a53 = new Int8Array(b, 2, 2)
+
+ a5.set([0x5050, 0x0a0a])
+ assertArrayPrefix([0x50, 0x50, 0x0a, 0x0a], a50)
+ assertArrayPrefix([0x50, 0x50], a51)
+ assertArrayPrefix([0x50, 0x0a], a52)
+ assertArrayPrefix([0x0a, 0x0a], a53)
+
+ a50.set([0x50, 0x50, 0x0a, 0x0a])
+ a51.set(a5)
+ assertArrayPrefix([0x50, 0x0a, 0x0a, 0x0a], a50)
+
+ a50.set([0x50, 0x50, 0x0a, 0x0a])
+ a52.set(a5)
+ assertArrayPrefix([0x50, 0x50, 0x0a, 0x0a], a50)
+
+ a50.set([0x50, 0x50, 0x0a, 0x0a])
+ a53.set(a5)
+ assertArrayPrefix([0x50, 0x50, 0x50, 0x0a], a50)
+
+ a50.set([0x50, 0x51, 0x0a, 0x0b])
+ a5.set(a51)
+ assertArrayPrefix([0x0050, 0x0051], a5)
+
+ a50.set([0x50, 0x51, 0x0a, 0x0b])
+ a5.set(a52)
+ assertArrayPrefix([0x0051, 0x000a], a5)
+
+ a50.set([0x50, 0x51, 0x0a, 0x0b])
+ a5.set(a53)
+ assertArrayPrefix([0x000a, 0x000b], a5)
+
+ // Mixed types of same size.
+ var a61 = initializeFromArray(Float32Array, [1.2, 12.3])
+ var a62 = MakeSharedTypedArray(Int32Array, 2)
+ a62.set(a61)
+ assertArrayPrefix([1, 12], a62)
+ a61.set(a62)
+ assertArrayPrefix([1, 12], a61)
+
+ // Invalid source
+ var a = MakeSharedTypedArray(Uint16Array, 50);
+ var expected = [];
+ for (i = 0; i < 50; i++) {
+ a[i] = i;
+ expected.push(i);
+ }
+ a.set({});
+ assertArrayPrefix(expected, a);
+ assertThrows(function() { a.set.call({}) }, TypeError);
+ assertThrows(function() { a.set.call([]) }, TypeError);
+
+ assertThrows(function() { a.set(0); }, TypeError);
+ assertThrows(function() { a.set(0, 1); }, TypeError);
+}
+
+TestTypedArraySet();
+
+function TestTypedArraysWithIllegalIndices() {
+ var a = MakeSharedTypedArray(Int32Array, 100);
+
+ a[-10] = 10;
+ assertEquals(undefined, a[-10]);
+ a["-10"] = 10;
+ assertEquals(undefined, a["-10"]);
+
+ var s = " -10";
+ a[s] = 10;
+ assertEquals(10, a[s]);
+ var s1 = " -10 ";
+ a[s] = 10;
+ assertEquals(10, a[s]);
+
+ a["-1e2"] = 10;
+ assertEquals(10, a["-1e2"]);
+ assertEquals(undefined, a[-1e2]);
+
+ a["-0"] = 256;
+ var s2 = " -0";
+ a[s2] = 255;
+ assertEquals(undefined, a["-0"]);
+ assertEquals(255, a[s2]);
+ assertEquals(0, a[-0]);
+
+ /* Chromium bug: 424619
+ * a[-Infinity] = 50;
+ * assertEquals(undefined, a[-Infinity]);
+ */
+ a[1.5] = 10;
+ assertEquals(undefined, a[1.5]);
+ var nan = Math.sqrt(-1);
+ a[nan] = 5;
+ assertEquals(undefined, a[nan]);
+
+ var x = 0;
+ var y = -0;
+ assertEquals(Infinity, 1/x);
+ assertEquals(-Infinity, 1/y);
+ a[x] = 5;
+ a[y] = 27;
+ assertEquals(27, a[x]);
+ assertEquals(27, a[y]);
+}
+
+TestTypedArraysWithIllegalIndices();
+
+function TestTypedArraysWithIllegalIndicesStrict() {
+ 'use strict';
+ var a = MakeSharedTypedArray(Int32Array, 100);
+
+ a[-10] = 10;
+ assertEquals(undefined, a[-10]);
+ a["-10"] = 10;
+ assertEquals(undefined, a["-10"]);
+
+ var s = " -10";
+ a[s] = 10;
+ assertEquals(10, a[s]);
+ var s1 = " -10 ";
+ a[s] = 10;
+ assertEquals(10, a[s]);
+
+ a["-1e2"] = 10;
+ assertEquals(10, a["-1e2"]);
+ assertEquals(undefined, a[-1e2]);
+
+ a["-0"] = 256;
+ var s2 = " -0";
+ a[s2] = 255;
+ assertEquals(undefined, a["-0"]);
+ assertEquals(255, a[s2]);
+ assertEquals(0, a[-0]);
+
+ /* Chromium bug: 424619
+ * a[-Infinity] = 50;
+ * assertEquals(undefined, a[-Infinity]);
+ */
+ a[1.5] = 10;
+ assertEquals(undefined, a[1.5]);
+ var nan = Math.sqrt(-1);
+ a[nan] = 5;
+ assertEquals(undefined, a[nan]);
+
+ var x = 0;
+ var y = -0;
+ assertEquals(Infinity, 1/x);
+ assertEquals(-Infinity, 1/y);
+ a[x] = 5;
+ a[y] = 27;
+ assertEquals(27, a[x]);
+ assertEquals(27, a[y]);
+}
+
+TestTypedArraysWithIllegalIndicesStrict();
+
+// General tests for properties
+
+// Test property attribute [[Enumerable]]
+function TestEnumerable(func, obj) {
+ function props(x) {
+ var array = [];
+ for (var p in x) array.push(p);
+ return array.sort();
+ }
+ assertArrayEquals([], props(func));
+ assertArrayEquals([], props(func.prototype));
+ if (obj)
+ assertArrayEquals([], props(obj));
+}
+TestEnumerable(ArrayBuffer, new SharedArrayBuffer());
+for(i = 0; i < typedArrayConstructors.length; i++) {
+ TestEnumerable(typedArrayConstructors[i]);
+}
+
+// Test arbitrary properties on ArrayBuffer
+function TestArbitrary(m) {
+ function TestProperty(map, property, value) {
+ map[property] = value;
+ assertEquals(value, map[property]);
+ }
+ for (var i = 0; i < 20; i++) {
+ TestProperty(m, 'key' + i, 'val' + i);
+ TestProperty(m, 'foo' + i, 'bar' + i);
+ }
+}
+TestArbitrary(new SharedArrayBuffer(256));
+for(i = 0; i < typedArrayConstructors.length; i++) {
+ TestArbitrary(MakeSharedTypedArray(typedArrayConstructors[i], 10));
+}
+
+// Test direct constructor call
+assertThrows(function() { SharedArrayBuffer(); }, TypeError);
+for(i = 0; i < typedArrayConstructors.length; i++) {
+ assertThrows(function(i) { typedArrayConstructors[i](); }.bind(this, i),
+ TypeError);
+}
'../../src/harmony-regexp.js',
'../../src/harmony-reflect.js',
'../../src/harmony-spread.js',
- '../../src/harmony-object.js'
+ '../../src/harmony-object.js',
+ '../../src/harmony-sharedarraybuffer.js',
],
'libraries_bin_file': '<(SHARED_INTERMEDIATE_DIR)/libraries.bin',
'libraries_experimental_bin_file': '<(SHARED_INTERMEDIATE_DIR)/libraries-experimental.bin',
projects / platform / upstream / v8.git / commitdiff