webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 97 insertions, 0 deletions

diff --git a/Source/WebCore/bindings/js/StructuredClone.cpp b/Source/WebCore/bindings/js/StructuredClone.cpp
new file mode 100644
index 000000000..4869ac0df
--- /dev/null
+++ b/Source/WebCore/bindings/js/StructuredClone.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2016 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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.
+ *
+ */
+
+#include "config.h"
+#include "StructuredClone.h"
+
+#include "JSDOMBinding.h"
+#include "JSDOMExceptionHandling.h"
+#include <runtime/JSTypedArrays.h>
+
+using namespace JSC;
+
+namespace WebCore {
+
+EncodedJSValue JSC_HOST_CALL structuredCloneArrayBuffer(ExecState* state)
+{
+    ASSERT(state);
+    ASSERT(state->argumentCount());
+    ASSERT(state->lexicalGlobalObject());
+
+    VM& vm = state->vm();
+    auto* buffer = toUnsharedArrayBuffer(vm, state->uncheckedArgument(0));
+    if (!buffer) {
+        auto scope = DECLARE_THROW_SCOPE(vm);
+        throwDataCloneError(*state, scope);
+        return { };
+    }
+    return JSValue::encode(JSArrayBuffer::create(state->vm(), state->lexicalGlobalObject()->arrayBufferStructure(ArrayBufferSharingMode::Default), ArrayBuffer::tryCreate(buffer->data(), buffer->byteLength())));
+}
+
+EncodedJSValue JSC_HOST_CALL structuredCloneArrayBufferView(ExecState* state)
+{
+    ASSERT(state);
+    ASSERT(state->argumentCount());
+
+    JSValue value = state->uncheckedArgument(0);
+    VM& vm = state->vm();
+    auto* bufferView = jsDynamicDowncast<JSArrayBufferView*>(vm, value);
+    ASSERT(bufferView);
+
+    auto* buffer = bufferView->unsharedBuffer();
+    if (!buffer) {
+        auto scope = DECLARE_THROW_SCOPE(vm);
+        throwDataCloneError(*state, scope);
+        return { };
+    }
+    auto bufferClone = ArrayBuffer::tryCreate(buffer->data(), buffer->byteLength());
+
+    if (jsDynamicDowncast<JSInt8Array*>(vm, value))
+        return JSValue::encode(JSInt8Array::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+    if (jsDynamicDowncast<JSInt16Array*>(vm, value))
+        return JSValue::encode(JSInt16Array::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+    if (jsDynamicDowncast<JSInt32Array*>(vm, value))
+        return JSValue::encode(JSInt32Array::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+    if (jsDynamicDowncast<JSUint8Array*>(vm, value))
+        return JSValue::encode(JSUint8Array::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+    if (jsDynamicDowncast<JSUint8ClampedArray*>(vm, value))
+        return JSValue::encode(JSUint8ClampedArray::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+    if (jsDynamicDowncast<JSUint16Array*>(vm, value))
+        return JSValue::encode(JSUint16Array::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+    if (jsDynamicDowncast<JSUint32Array*>(vm, value))
+        return JSValue::encode(JSUint32Array::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+    if (jsDynamicDowncast<JSFloat32Array*>(vm, value))
+        return JSValue::encode(JSFloat32Array::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+    if (jsDynamicDowncast<JSFloat64Array*>(vm, value))
+        return JSValue::encode(JSFloat64Array::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+    if (jsDynamicDowncast<JSDataView*>(vm, value))
+        return JSValue::encode(JSDataView::create(state, bufferView->structure(), WTFMove(bufferClone), bufferView->byteOffset(), bufferView->length()));
+
+    ASSERT_NOT_REACHED();
+    return JSValue::encode(jsUndefined());
+}
+
+} // namespace WebCore