static bool cryptoKeyUsagesFromJSValue(ExecState& state, JSValue value, CryptoKeyUsageBitmap& result)
{
VM& vm = state.vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (!isJSArray(value)) {
throwTypeError(&state, scope);
return false;
}
result = 0;
JSArray* array = asArray(value);
for (size_t i = 0; i < array->length(); ++i) {
JSValue element = array->getIndex(&state, i);
String usageString = element.toString(&state)->value(&state);
RETURN_IF_EXCEPTION(scope, false);
if (usageString == "encrypt")
result |= CryptoKeyUsageEncrypt;
else if (usageString == "decrypt")
result |= CryptoKeyUsageDecrypt;
else if (usageString == "sign")
result |= CryptoKeyUsageSign;
else if (usageString == "verify")
result |= CryptoKeyUsageVerify;
else if (usageString == "deriveKey")
result |= CryptoKeyUsageDeriveKey;
else if (usageString == "deriveBits")
result |= CryptoKeyUsageDeriveBits;
else if (usageString == "wrapKey")
result |= CryptoKeyUsageWrapKey;
else if (usageString == "unwrapKey")
result |= CryptoKeyUsageUnwrapKey;
}
return true;
}
ALWAYS_INLINE void SlotVisitor::visitChildren(const JSCell* cell)
{
ASSERT(Heap::isMarked(cell));
m_currentObjectCellStateBeforeVisiting = cell->cellState();
cell->setCellState(CellState::OldBlack);
if (isJSString(cell)) {
JSString::visitChildren(const_cast<JSCell*>(cell), *this);
return;
}
if (isJSFinalObject(cell)) {
JSFinalObject::visitChildren(const_cast<JSCell*>(cell), *this);
return;
}
if (isJSArray(cell)) {
JSArray::visitChildren(const_cast<JSCell*>(cell), *this);
return;
}
cell->methodTable()->visitChildren(const_cast<JSCell*>(cell), *this);
}
EncodedJSValue JSC_HOST_CALL JSBlobConstructor::constructJSBlob(ExecState* exec)
{
JSBlobConstructor* jsConstructor = jsCast<JSBlobConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "Blob constructor associated document is unavailable"));
if (!exec->argumentCount()) {
RefPtr<Blob> blob = Blob::create();
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), Blob, blob.get()));
}
JSValue firstArg = exec->argument(0);
if (!isJSArray(firstArg))
return throwVMError(exec, createTypeError(exec, "First argument of the constructor is not of type Array"));
String type;
String endings = "transparent";
if (exec->argumentCount() > 1) {
JSValue blobPropertyBagValue = exec->argument(1);
if (!blobPropertyBagValue.isObject())
return throwVMError(exec, createTypeError(exec, "Second argument of the constructor is not of type Object"));
// Given the above test, this will always yield an object.
JSObject* blobPropertyBagObject = blobPropertyBagValue.toObject(exec);
// Create the dictionary wrapper from the initializer object.
JSDictionary dictionary(exec, blobPropertyBagObject);
// Attempt to get the endings property and validate it.
bool containsEndings = dictionary.get("endings", endings);
if (exec->hadException())
return JSValue::encode(jsUndefined());
if (containsEndings) {
if (endings != "transparent" && endings != "native")
return throwVMError(exec, createTypeError(exec, "The endings property must be either \"transparent\" or \"native\""));
}
// Attempt to get the type property.
dictionary.get("type", type);
if (exec->hadException())
return JSValue::encode(jsUndefined());
}
ASSERT(endings == "transparent" || endings == "native");
// FIXME: this would be better if the WebKitBlobBuilder were a stack object to avoid the allocation.
RefPtr<WebKitBlobBuilder> blobBuilder = WebKitBlobBuilder::create();
JSArray* array = asArray(firstArg);
unsigned length = array->length();
for (unsigned i = 0; i < length; ++i) {
JSValue item = array->getIndex(i);
#if ENABLE(BLOB)
if (item.inherits(&JSArrayBuffer::s_info))
blobBuilder->append(toArrayBuffer(item));
else
#endif
if (item.inherits(&JSBlob::s_info))
blobBuilder->append(toBlob(item));
else {
String string = ustringToString(item.toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(jsUndefined());
blobBuilder->append(string, endings, ASSERT_NO_EXCEPTION);
}
}
RefPtr<Blob> blob = blobBuilder->getBlob(type);
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), Blob, blob.get()));
}
EncodedJSValue JSC_HOST_CALL arrayProtoFuncToString(ExecState* exec)
{
JSValue thisValue = exec->hostThisValue();
bool isRealArray = isJSArray(&exec->globalData(), thisValue);
if (!isRealArray && !thisValue.inherits(&JSArray::info))
return throwVMTypeError(exec);
JSArray* thisObj = asArray(thisValue);
HashSet<JSObject*>& arrayVisitedElements = exec->globalData().arrayVisitedElements;
if (arrayVisitedElements.size() >= MaxSmallThreadReentryDepth) {
if (arrayVisitedElements.size() >= exec->globalData().maxReentryDepth)
return throwVMError(exec, createStackOverflowError(exec));
}
bool alreadyVisited = !arrayVisitedElements.add(thisObj).second;
if (alreadyVisited)
return JSValue::encode(jsEmptyString(exec)); // return an empty string, avoiding infinite recursion.
//FYWEBKITMOD begin: setting up StringJoiner (while integrating r148721 due to fix of bug 114779). But not using 'ConstructFromLiteral' optimization which we dont have in our webkit.
unsigned length = thisObj->get(exec, exec->propertyNames().length).toUInt32(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
//WebCore::String separator(",", WebCore::String::ConstructFromLiteral);
//JSStringJoiner stringJoiner(separator, length);
JSStringJoiner stringJoiner(",", length);
//FYWEBKITMOD end
unsigned totalSize = length ? length - 1 : 0;
Vector<RefPtr<UString::Rep>, 256> strBuffer(length);
for (unsigned k = 0; k < length; k++) {
JSValue element;
if (isRealArray && thisObj->canGetIndex(k))
element = thisObj->getIndex(k);
else {
element = thisObj->get(exec, k);
//FYWEBKITMOD begin: added while integrating r148721 due to fix of bug 114779
if (exec->hadException())
return JSValue::encode(jsUndefined());
//FYWEBKITMOD end
}
//FYWEBKITMOD begin: removed (USE_FIX 1) old implementation which joined the strings manually and added usage of JSStringJoiner (while integrating r148721 due to fix of bug 114779)
#define USE_FIX 1 //keep this defined!!!
#ifdef USE_FIX
if (element.isUndefinedOrNull())
stringJoiner.append(WebCore::String()); //FYWEBKITMOD:
else
stringJoiner.append(element.toString(exec).rep()); //FYWEBKITMOD: using toString() instead of new toWTFString(). Only difference is an optimization used in the toWTFString() case.
if (exec->hadException())
return JSValue::encode(jsUndefined());
}
arrayVisitedElements.remove(thisObj);
return JSValue::encode(stringJoiner.build(exec));
#else
if (element.isUndefinedOrNull())
continue;
UString str = element.toString(exec);
strBuffer[k] = str.rep();
totalSize += str.size();
if (!strBuffer.data()) {
throwOutOfMemoryError(exec);
}
if (exec->hadException())
break;
}