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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
*/
#include "jsfriendapi.h"
#include "js/ArrayBuffer.h" // JS::NewArrayBuffer
#include "js/experimental/TypedData.h" // JS_GetArrayBufferView{Type,ByteLength,Data}, JS_GetObjectAsArrayBufferView, JS_GetObjectAs{{Ui,I}nt{8,16,32},Float{32,64}}Array, JS_IsArrayBufferViewObject, JS_NewDataView, JS_New{{Ui,I}nt{8,16,32},Float{32,64},Uint8Clamped}Array
#include "js/ScalarType.h" // js::Scalar::Type
#include "jsapi-tests/tests.h"
#include "vm/ProxyObject.h"
#include "vm/Realm.h"
#include "vm/Realm-inl.h"
using namespace js;
BEGIN_TEST(testArrayBufferView_type) {
CHECK((TestViewType<uint8_t, Create<JS_NewUint8Array, 7>,
JS_GetObjectAsUint8Array, js::Scalar::Uint8, 7, 7>(cx)));
CHECK((TestViewType<int8_t, Create<JS_NewInt8Array, 33>,
JS_GetObjectAsInt8Array, js::Scalar::Int8, 33, 33>(cx)));
CHECK((TestViewType<uint8_t, Create<JS_NewUint8ClampedArray, 7>,
JS_GetObjectAsUint8ClampedArray, js::Scalar::Uint8Clamped,
7, 7>(cx)));
CHECK(
(TestViewType<uint16_t, Create<JS_NewUint16Array, 3>,
JS_GetObjectAsUint16Array, js::Scalar::Uint16, 3, 6>(cx)));
CHECK(
(TestViewType<int16_t, Create<JS_NewInt16Array, 17>,
JS_GetObjectAsInt16Array, js::Scalar::Int16, 17, 34>(cx)));
CHECK((
TestViewType<uint32_t, Create<JS_NewUint32Array, 15>,
JS_GetObjectAsUint32Array, js::Scalar::Uint32, 15, 60>(cx)));
CHECK((TestViewType<int32_t, Create<JS_NewInt32Array, 8>,
JS_GetObjectAsInt32Array, js::Scalar::Int32, 8, 32>(cx)));
CHECK((TestViewType<float, Create<JS_NewFloat32Array, 7>,
JS_GetObjectAsFloat32Array, js::Scalar::Float32, 7, 28>(
cx)));
CHECK((TestViewType<double, Create<JS_NewFloat64Array, 9>,
JS_GetObjectAsFloat64Array, js::Scalar::Float64, 9, 72>(
cx)));
CHECK((TestViewType<uint8_t, CreateDataView, JS_GetObjectAsArrayBufferView,
js::Scalar::MaxTypedArrayViewType, 8, 8>(cx)));
JS::Rooted<JS::Value> hasTypedObject(cx);
EVAL("typeof TypedObject !== 'undefined'", &hasTypedObject);
if (hasTypedObject.isTrue()) {
JS::Rooted<JS::Value> tval(cx);
EVAL(
"var T = new TypedObject.StructType({ x: TypedObject.uint32 });\n"
"new T(new ArrayBuffer(4));",
&tval);
JS::Rooted<JSObject*> tobj(cx, &tval.toObject());
CHECK(!JS_IsArrayBufferViewObject(tobj));
}
return true;
}
static JSObject* CreateDataView(JSContext* cx) {
JS::Rooted<JSObject*> buffer(cx, JS::NewArrayBuffer(cx, 8));
if (!buffer) {
return nullptr;
}
return JS_NewDataView(cx, buffer, 0, 8);
}
template <JSObject* CreateTypedArray(JSContext* cx, uint32_t length),
size_t Length>
static JSObject* Create(JSContext* cx) {
return CreateTypedArray(cx, Length);
}
template <typename T, JSObject* CreateViewType(JSContext* cx),
JSObject* GetObjectAs(JSObject* obj, uint32_t* length,
bool* isSharedMemory, T** data),
js::Scalar::Type ExpectedType, uint32_t ExpectedLength,
uint32_t ExpectedByteLength>
bool TestViewType(JSContext* cx) {
JS::Rooted<JSObject*> obj(cx, CreateViewType(cx));
CHECK(obj);
CHECK(JS_IsArrayBufferViewObject(obj));
CHECK(JS_GetArrayBufferViewType(obj) == ExpectedType);
CHECK(JS_GetArrayBufferViewByteLength(obj) == ExpectedByteLength);
{
JS::AutoCheckCannotGC nogc;
bool shared1;
T* data1 = static_cast<T*>(JS_GetArrayBufferViewData(obj, &shared1, nogc));
T* data2;
bool shared2;
uint32_t len;
CHECK(obj == GetObjectAs(obj, &len, &shared2, &data2));
CHECK(data1 == data2);
CHECK(shared1 == shared2);
CHECK(len == ExpectedLength);
}
JS::RealmOptions options;
JS::RootedObject otherGlobal(
cx, JS_NewGlobalObject(cx, basicGlobalClass(), nullptr,
JS::DontFireOnNewGlobalHook, options));
CHECK(otherGlobal);
JS::Rooted<JSObject*> buffer(cx);
{
AutoRealm ar(cx, otherGlobal);
buffer = JS::NewArrayBuffer(cx, 8);
CHECK(buffer);
CHECK(buffer->as<ArrayBufferObject>().byteLength().get() == 8);
}
CHECK(buffer->compartment() == otherGlobal->compartment());
CHECK(JS_WrapObject(cx, &buffer));
CHECK(buffer->compartment() == global->compartment());
JS::Rooted<JSObject*> dataview(cx, JS_NewDataView(cx, buffer, 4, 4));
CHECK(dataview);
CHECK(dataview->is<ProxyObject>());
JS::Rooted<JS::Value> val(cx);
val = ObjectValue(*dataview);
CHECK(JS_SetProperty(cx, global, "view", val));
EVAL("view.buffer", &val);
CHECK(val.toObject().is<ProxyObject>());
CHECK(dataview->compartment() == global->compartment());
JS::Rooted<JSObject*> otherView(cx, js::UncheckedUnwrap(dataview));
CHECK(otherView->compartment() == otherGlobal->compartment());
JS::Rooted<JSObject*> otherBuffer(cx, js::UncheckedUnwrap(&val.toObject()));
CHECK(otherBuffer->compartment() == otherGlobal->compartment());
EVAL("Object.getPrototypeOf(view) === DataView.prototype", &val);
CHECK(val.toBoolean() == true);
return true;
}
END_TEST(testArrayBufferView_type)
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