ProxyConstructor.cpp [plain text]
#include "config.h"
#include "ProxyConstructor.h"
#include "JSCInlines.h"
#include "ObjectConstructor.h"
#include "ProxyObject.h"
#include "ProxyRevoke.h"
namespace JSC {
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(ProxyConstructor);
const ClassInfo ProxyConstructor::s_info = { "Proxy", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(ProxyConstructor) };
ProxyConstructor* ProxyConstructor::create(VM& vm, Structure* structure)
{
ProxyConstructor* constructor = new (NotNull, allocateCell<ProxyConstructor>(vm.heap)) ProxyConstructor(vm, structure);
constructor->finishCreation(vm, "Proxy", structure->globalObject());
return constructor;
}
static EncodedJSValue JSC_HOST_CALL callProxy(JSGlobalObject*, CallFrame*);
static EncodedJSValue JSC_HOST_CALL constructProxyObject(JSGlobalObject*, CallFrame*);
ProxyConstructor::ProxyConstructor(VM& vm, Structure* structure)
: Base(vm, structure, callProxy, constructProxyObject)
{
}
static EncodedJSValue JSC_HOST_CALL makeRevocableProxy(JSGlobalObject* globalObject, CallFrame* callFrame)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (callFrame->argumentCount() < 2)
return throwVMTypeError(globalObject, scope, "Proxy.revocable needs to be called with two arguments: the target and the handler"_s);
JSValue target = callFrame->argument(0);
JSValue handler = callFrame->argument(1);
ProxyObject* proxy = ProxyObject::create(globalObject, target, handler);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
ProxyRevoke* revoke = ProxyRevoke::create(vm, globalObject->proxyRevokeStructure(), proxy);
scope.assertNoException();
JSObject* result = constructEmptyObject(globalObject);
result->putDirect(vm, makeIdentifier(vm, "proxy"), proxy, static_cast<unsigned>(PropertyAttribute::None));
result->putDirect(vm, makeIdentifier(vm, "revoke"), revoke, static_cast<unsigned>(PropertyAttribute::None));
return JSValue::encode(result);
}
void ProxyConstructor::finishCreation(VM& vm, const char* name, JSGlobalObject* globalObject)
{
Base::finishCreation(vm, name, NameAdditionMode::WithStructureTransition);
putDirect(vm, vm.propertyNames->length, jsNumber(2), PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirect(vm, makeIdentifier(vm, "revocable"), JSFunction::create(vm, globalObject, 2, "revocable"_s, makeRevocableProxy));
}
static EncodedJSValue JSC_HOST_CALL constructProxyObject(JSGlobalObject* globalObject, CallFrame* callFrame)
{
JSValue target = callFrame->argument(0);
JSValue handler = callFrame->argument(1);
return JSValue::encode(ProxyObject::create(globalObject, target, handler));
}
static EncodedJSValue JSC_HOST_CALL callProxy(JSGlobalObject* globalObject, CallFrame*)
{
auto scope = DECLARE_THROW_SCOPE(globalObject->vm());
return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(globalObject, scope, "Proxy"));
}
}