// Copyright 2016 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "src/builtins/accessors.h" #include "src/builtins/builtins-utils-inl.h" #include "src/builtins/builtins.h" #include "src/execution/isolate-inl.h" #include "src/execution/messages.h" #include "src/logging/counters.h" #include "src/objects/api-callbacks.h" #include "src/objects/objects-inl.h" #include "src/objects/property-descriptor.h" namespace v8 { namespace internal { // ES6 section 19.5.1.1 Error ( message ) BUILTIN(ErrorConstructor) { HandleScope scope(isolate); RETURN_RESULT_OR_FAILURE( isolate, ErrorUtils::Construct(isolate, args.target(), args.new_target(), args.atOrUndefined(isolate, 1))); } // static BUILTIN(ErrorCaptureStackTrace) { HandleScope scope(isolate); Handle<Object> object_obj = args.atOrUndefined(isolate, 1); isolate->CountUsage(v8::Isolate::kErrorCaptureStackTrace); if (!object_obj->IsJSObject()) { THROW_NEW_ERROR_RETURN_FAILURE( isolate, NewTypeError(MessageTemplate::kInvalidArgument, object_obj)); } Handle<JSObject> object = Handle<JSObject>::cast(object_obj); Handle<Object> caller = args.atOrUndefined(isolate, 2); FrameSkipMode mode = caller->IsJSFunction() ? SKIP_UNTIL_SEEN : SKIP_FIRST; // Collect the stack trace. RETURN_FAILURE_ON_EXCEPTION(isolate, isolate->CaptureAndSetDetailedStackTrace(object)); RETURN_FAILURE_ON_EXCEPTION( isolate, isolate->CaptureAndSetSimpleStackTrace(object, mode, caller)); // Add the stack accessors. Handle<AccessorInfo> error_stack = isolate->factory()->error_stack_accessor(); Handle<Name> name(Name::cast(error_stack->name()), isolate); // Explicitly check for frozen objects. Other access checks are performed by // the LookupIterator in SetAccessor below. if (!JSObject::IsExtensible(object)) { return isolate->Throw(*isolate->factory()->NewTypeError( MessageTemplate::kDefineDisallowed, name)); } RETURN_FAILURE_ON_EXCEPTION( isolate, JSObject::SetAccessor(object, name, error_stack, DONT_ENUM)); return ReadOnlyRoots(isolate).undefined_value(); } // ES6 section 19.5.3.4 Error.prototype.toString ( ) BUILTIN(ErrorPrototypeToString) { HandleScope scope(isolate); RETURN_RESULT_OR_FAILURE(isolate, ErrorUtils::ToString(isolate, args.receiver())); } } // namespace internal } // namespace v8