NativeErrorConstructor.cpp [plain text]
#include "config.h"
#include "NativeErrorConstructor.h"
#include "ErrorInstance.h"
#include "Interpreter.h"
#include "JSFunction.h"
#include "JSString.h"
#include "NativeErrorPrototype.h"
#include "JSCInlines.h"
namespace JSC {
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(NativeErrorConstructor);
const ClassInfo NativeErrorConstructor::s_info = { "Function", &InternalFunction::s_info, 0, CREATE_METHOD_TABLE(NativeErrorConstructor) };
NativeErrorConstructor::NativeErrorConstructor(VM& vm, Structure* structure)
: InternalFunction(vm, structure)
{
}
void NativeErrorConstructor::finishCreation(VM& vm, JSGlobalObject* globalObject, Structure* prototypeStructure, const String& name)
{
Base::finishCreation(vm, name);
ASSERT(inherits(info()));
NativeErrorPrototype* prototype = NativeErrorPrototype::create(vm, prototypeStructure, name, this);
putDirect(vm, vm.propertyNames->length, jsNumber(1), DontEnum | ReadOnly);
putDirect(vm, vm.propertyNames->prototype, prototype, DontDelete | ReadOnly | DontEnum);
m_errorStructure.set(vm, this, ErrorInstance::createStructure(vm, globalObject, prototype));
ASSERT(m_errorStructure);
ASSERT(m_errorStructure->isObject());
}
void NativeErrorConstructor::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
NativeErrorConstructor* thisObject = jsCast<NativeErrorConstructor*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
visitor.append(thisObject->m_errorStructure);
}
EncodedJSValue JSC_HOST_CALL Interpreter::constructWithNativeErrorConstructor(ExecState* exec)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSValue message = exec->argument(0);
Structure* errorStructure = InternalFunction::createSubclassStructure(exec, exec->newTarget(), jsCast<NativeErrorConstructor*>(exec->jsCallee())->errorStructure());
RETURN_IF_EXCEPTION(scope, encodedJSValue());
ASSERT(errorStructure);
scope.release();
return JSValue::encode(ErrorInstance::create(exec, errorStructure, message, nullptr, TypeNothing, false));
}
ConstructType NativeErrorConstructor::getConstructData(JSCell*, ConstructData& constructData)
{
constructData.native.function = Interpreter::constructWithNativeErrorConstructor;
return ConstructType::Host;
}
EncodedJSValue JSC_HOST_CALL Interpreter::callNativeErrorConstructor(ExecState* exec)
{
JSValue message = exec->argument(0);
Structure* errorStructure = static_cast<NativeErrorConstructor*>(exec->jsCallee())->errorStructure();
return JSValue::encode(ErrorInstance::create(exec, errorStructure, message, nullptr, TypeNothing, false));
}
CallType NativeErrorConstructor::getCallData(JSCell*, CallData& callData)
{
callData.native.function = Interpreter::callNativeErrorConstructor;
return CallType::Host;
}
}