JSValue JSC_HOST_CALL callHostFunctionAsConstructor(ExecState* exec, JSObject* constructor, JSValue, const ArgList&)
{
CodeBlock* codeBlock = exec->callerFrame()->codeBlock();
unsigned vPCIndex = codeBlock->bytecodeOffset(exec, exec->returnPC());
exec->setException(createNotAConstructorError(exec, constructor, vPCIndex, codeBlock));
return JSValue();
}
static void* handleHostCall(ExecState* execCallee, JSValue callee, CodeSpecializationKind kind)
{
ExecState* exec = execCallee->callerFrame();
JSGlobalData* globalData = &exec->globalData();
if (kind == CodeForCall) {
CallData callData;
CallType callType = getCallData(callee, callData);
ASSERT(callType != CallTypeJS);
if (callType == CallTypeHost) {
if (!globalData->interpreter->registerFile().grow(execCallee->registers())) {
globalData->exception = createStackOverflowError(exec);
return 0;
}
execCallee->setScopeChain(exec->scopeChain());
globalData->hostCallReturnValue = JSValue::decode(callData.native.function(execCallee));
if (globalData->exception)
return 0;
return reinterpret_cast<void*>(getHostCallReturnValue);
}
ASSERT(callType == CallTypeNone);
exec->globalData().exception = createNotAFunctionError(exec, callee);
return 0;
}
ASSERT(kind == CodeForConstruct);
ConstructData constructData;
ConstructType constructType = getConstructData(callee, constructData);
ASSERT(constructType != ConstructTypeJS);
if (constructType == ConstructTypeHost) {
if (!globalData->interpreter->registerFile().grow(execCallee->registers())) {
globalData->exception = createStackOverflowError(exec);
return 0;
}
execCallee->setScopeChain(exec->scopeChain());
globalData->hostCallReturnValue = JSValue::decode(constructData.native.function(execCallee));
if (globalData->exception)
return 0;
return reinterpret_cast<void*>(getHostCallReturnValue);
}
ASSERT(constructType == ConstructTypeNone);
exec->globalData().exception = createNotAConstructorError(exec, callee);
return 0;
}
static void* handleHostCall(ExecState* execCallee, JSValue callee, CodeSpecializationKind kind)
{
ExecState* exec = execCallee->callerFrame();
VM* vm = &exec->vm();
execCallee->setScope(exec->scope());
execCallee->setCodeBlock(0);
if (kind == CodeForCall) {
CallData callData;
CallType callType = getCallData(callee, callData);
ASSERT(callType != CallTypeJS);
if (callType == CallTypeHost) {
NativeCallFrameTracer tracer(vm, execCallee);
execCallee->setCallee(asObject(callee));
vm->hostCallReturnValue = JSValue::decode(callData.native.function(execCallee));
if (vm->exception())
return vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress();
return reinterpret_cast<void*>(getHostCallReturnValue);
}
ASSERT(callType == CallTypeNone);
exec->vm().throwException(exec, createNotAFunctionError(exec, callee));
return vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress();
}
ASSERT(kind == CodeForConstruct);
ConstructData constructData;
ConstructType constructType = getConstructData(callee, constructData);
ASSERT(constructType != ConstructTypeJS);
if (constructType == ConstructTypeHost) {
NativeCallFrameTracer tracer(vm, execCallee);
execCallee->setCallee(asObject(callee));
vm->hostCallReturnValue = JSValue::decode(constructData.native.function(execCallee));
if (vm->exception())
return vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress();
return reinterpret_cast<void*>(getHostCallReturnValue);
}
ASSERT(constructType == ConstructTypeNone);
exec->vm().throwException(exec, createNotAConstructorError(exec, callee));
return vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress();
}
JSObject* createNotAnObjectError(ExecState* exec, JSNotAnObjectErrorStub* error, unsigned bytecodeOffset, CodeBlock* codeBlock)
{
// Both op_create_this and op_instanceof require a use of op_get_by_id to get
// the prototype property from an object. The exception messages for exceptions
// thrown by these instances op_get_by_id need to reflect this.
OpcodeID followingOpcodeID;
if (codeBlock->getByIdExceptionInfoForBytecodeOffset(exec, bytecodeOffset, followingOpcodeID)) {
ASSERT(followingOpcodeID == op_create_this || followingOpcodeID == op_instanceof);
if (followingOpcodeID == op_create_this)
return createNotAConstructorError(exec, error->isNull() ? jsNull() : jsUndefined(), bytecodeOffset, codeBlock);
return createInvalidParamError(exec, "instanceof", error->isNull() ? jsNull() : jsUndefined(), bytecodeOffset, codeBlock);
}
int startOffset = 0;
int endOffset = 0;
int divotPoint = 0;
int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
UString errorMessage = createErrorMessage(exec, codeBlock, line, divotPoint - startOffset, divotPoint, error->isNull() ? jsNull() : jsUndefined(), "not an object");
JSObject* exception = addErrorInfo(exec, createTypeError(exec, errorMessage), line, codeBlock->ownerExecutable()->source(), divotPoint, startOffset, endOffset);
return exception;
}
JSObject* createNotAnObjectError(ExecState* exec, JSNotAnObjectErrorStub* error, unsigned bytecodeOffset, CodeBlock* codeBlock)
{
// Both op_construct and op_instanceof require a use of op_get_by_id to get
// the prototype property from an object. The exception messages for exceptions
// thrown by these instances op_get_by_id need to reflect this.
OpcodeID followingOpcodeID;
if (codeBlock->getByIdExceptionInfoForBytecodeOffset(exec, bytecodeOffset, followingOpcodeID)) {
ASSERT(followingOpcodeID == op_construct || followingOpcodeID == op_instanceof);
if (followingOpcodeID == op_construct)
return createNotAConstructorError(exec, error->isNull() ? jsNull() : jsUndefined(), bytecodeOffset, codeBlock);
return createInvalidParamError(exec, "instanceof", error->isNull() ? jsNull() : jsUndefined(), bytecodeOffset, codeBlock);
}
int startOffset = 0;
int endOffset = 0;
int divotPoint = 0;
int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
UString errorMessage = createErrorMessage(exec, codeBlock, line, divotPoint - startOffset, divotPoint, error->isNull() ? jsNull() : jsUndefined(), "not an object");
JSObject* exception = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerExecutable()->sourceID(), codeBlock->ownerExecutable()->sourceURL());
exception->putWithAttributes(exec, Identifier(exec, expressionBeginOffsetPropertyName), jsNumber(exec, divotPoint - startOffset), ReadOnly | DontDelete);
exception->putWithAttributes(exec, Identifier(exec, expressionCaretOffsetPropertyName), jsNumber(exec, divotPoint), ReadOnly | DontDelete);
exception->putWithAttributes(exec, Identifier(exec, expressionEndOffsetPropertyName), jsNumber(exec, divotPoint + endOffset), ReadOnly | DontDelete);
return exception;
}
EncodedJSValue JSC_HOST_CALL callHostFunctionAsConstructor(ExecState* exec)
{
return throwVMError(exec, createNotAConstructorError(exec, exec->callee()));
}
EncodedJSValue JSC_HOST_CALL callHostFunctionAsConstructor(ExecState* exec)
{
CodeBlock* codeBlock = exec->callerFrame()->codeBlock();
unsigned vPCIndex = codeBlock->bytecodeOffset(exec, exec->returnPC());
return throwVMError(exec, createNotAConstructorError(exec, exec->callee(), vPCIndex, codeBlock));
}