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32 #include "bindings/v8/V8Utilities.h"
34 #include "V8MessagePort.h"
35 #include "bindings/v8/ExceptionMessages.h"
36 #include "bindings/v8/ScriptState.h"
37 #include "bindings/v8/V8AbstractEventListener.h"
38 #include "bindings/v8/V8Binding.h"
39 #include "bindings/v8/custom/V8ArrayBufferCustom.h"
40 #include "core/dom/Document.h"
41 #include "core/dom/ExceptionCode.h"
42 #include "core/dom/ExecutionContext.h"
43 #include "core/dom/MessagePort.h"
44 #include "core/frame/Frame.h"
45 #include "core/workers/WorkerGlobalScope.h"
46 #include "wtf/ArrayBuffer.h"
47 #include "wtf/text/WTFString.h"
53 bool extractTransferables(v8::Local<v8::Value> value, int argumentIndex, MessagePortArray& ports, ArrayBufferArray& arrayBuffers, ExceptionState& exceptionState, v8::Isolate* isolate)
55 if (isUndefinedOrNull(value)) {
57 arrayBuffers.resize(0);
62 if (value->IsArray()) {
63 v8::Local<v8::Array> array = v8::Local<v8::Array>::Cast(value);
64 length = array->Length();
65 } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
66 exceptionState.throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argumentIndex + 1));
70 v8::Local<v8::Object> transferrables = v8::Local<v8::Object>::Cast(value);
72 // Validate the passed array of transferrables.
73 for (unsigned int i = 0; i < length; ++i) {
74 v8::Local<v8::Value> transferrable = transferrables->Get(i);
75 // Validation of non-null objects, per HTML5 spec 10.3.3.
76 if (isUndefinedOrNull(transferrable)) {
77 exceptionState.throwDOMException(DataCloneError, "Value at index " + String::number(i) + " is an untransferable " + (transferrable->IsUndefined() ? "'undefined'" : "'null'") + " value.");
80 // Validation of Objects implementing an interface, per WebIDL spec 4.1.15.
81 if (V8MessagePort::hasInstance(transferrable, isolate)) {
82 RefPtr<MessagePort> port = V8MessagePort::toNative(v8::Handle<v8::Object>::Cast(transferrable));
83 // Check for duplicate MessagePorts.
84 if (ports.contains(port)) {
85 exceptionState.throwDOMException(DataCloneError, "Message port at index " + String::number(i) + " is a duplicate of an earlier port.");
88 ports.append(port.release());
89 } else if (V8ArrayBuffer::hasInstance(transferrable, isolate)) {
90 RefPtr<ArrayBuffer> arrayBuffer = V8ArrayBuffer::toNative(v8::Handle<v8::Object>::Cast(transferrable));
91 if (arrayBuffers.contains(arrayBuffer)) {
92 exceptionState.throwDOMException(DataCloneError, "ArrayBuffer at index " + String::number(i) + " is a duplicate of an earlier ArrayBuffer.");
95 arrayBuffers.append(arrayBuffer.release());
97 exceptionState.throwDOMException(DataCloneError, "Value at index " + String::number(i) + " does not have a transferable type.");
104 } // namespace WebCore