Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 155 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/testArrayBufferView.cpp b/js/src/jsapi-tests/testArrayBufferView.cpp
new file mode 100644
index 0000000000..b9001077a6
--- /dev/null
+++ b/js/src/jsapi-tests/testArrayBufferView.cpp
@@ -0,0 +1,155 @@
+/* -*- 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)