EncodedJSValue JSC_HOST_CALL functionProtoFuncApply(ExecState* exec)
{
JSValue thisValue = exec->hostThisValue();
CallData callData;
CallType callType = getCallData(thisValue, callData);
if (callType == CallTypeNone)
return throwVMTypeError(exec);
JSValue array = exec->argument(1);
MarkedArgumentBuffer applyArgs;
if (!array.isUndefinedOrNull()) {
if (!array.isObject())
return throwVMTypeError(exec);
if (asObject(array)->classInfo() == &Arguments::s_info) {
if (asArguments(array)->length(exec) > Arguments::MaxArguments)
return JSValue::encode(throwStackOverflowError(exec));
asArguments(array)->fillArgList(exec, applyArgs);
} else if (isJSArray(array)) {
if (asArray(array)->length() > Arguments::MaxArguments)
return JSValue::encode(throwStackOverflowError(exec));
asArray(array)->fillArgList(exec, applyArgs);
} else {
unsigned length = asObject(array)->get(exec, exec->propertyNames().length).toUInt32(exec);
if (length > Arguments::MaxArguments)
return JSValue::encode(throwStackOverflowError(exec));
for (unsigned i = 0; i < length; ++i)
applyArgs.append(asObject(array)->get(exec, i));
}
}
return JSValue::encode(call(exec, thisValue, callType, callData, exec->argument(0), applyArgs));
}
EncodedJSValue doCallToJavaScript(void* executableAddress, ProtoCallFrame* protoCallFrame)
{
CodeBlock* codeBlock = protoCallFrame->codeBlock();
JSScope* scope = protoCallFrame->scope();
JSObject* callee = protoCallFrame->callee();
int argCountIncludingThis = protoCallFrame->argumentCountIncludingThis();
int argCount = protoCallFrame->argumentCount();
JSValue thisValue = protoCallFrame->thisValue();
JSStack& stack = scope->vm()->interpreter->stack();
CallFrame* newCallFrame = stack.pushFrame(codeBlock, scope, argCountIncludingThis, callee);
if (UNLIKELY(!newCallFrame)) {
JSGlobalObject* globalObject = scope->globalObject();
ExecState* exec = globalObject->globalExec();
return JSValue::encode(throwStackOverflowError(exec));
}
// Set the arguments for the callee:
newCallFrame->setThisValue(thisValue);
for (int i = 0; i < argCount; ++i)
newCallFrame->setArgument(i, protoCallFrame->argument(i));
JSValue result = execute(newCallFrame, executableAddress);
stack.popFrame(newCallFrame);
return JSValue::encode(result);
}
void JIT_OPERATION operationThrowStackOverflowForVarargs(ExecState* exec)
{
VM& vm = exec->vm();
NativeCallFrameTracer tracer(&vm, exec);
throwStackOverflowError(exec);
}
