WrappedFunctionObject.h (1431B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- 2 * vim: set ts=8 sts=2 et sw=2 tw=80: 3 * This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef builtin_WrappedFunctionObject_h 8 #define builtin_WrappedFunctionObject_h 9 10 #include "js/Value.h" 11 #include "vm/NativeObject.h" 12 13 namespace js { 14 15 // Implementing Wrapped Function Exotic Objects from the ShadowRealms proposal 16 // https://tc39.es/proposal-shadowrealm/#sec-wrapped-function-exotic-objects 17 // 18 // These are produced as callables are passed across ShadowRealm boundaries, 19 // preventing functions from piercing the shadow realm barrier. 20 class WrappedFunctionObject : public NativeObject { 21 public: 22 static const JSClass class_; 23 24 enum { WrappedTargetFunctionSlot, SlotCount }; 25 26 JSObject* getTargetFunction() const { 27 return &getFixedSlot(WrappedTargetFunctionSlot).toObject(); 28 } 29 30 void setTargetFunction(JSObject& obj) { 31 setFixedSlot(WrappedTargetFunctionSlot, ObjectValue(obj)); 32 } 33 }; 34 35 bool WrappedFunctionCreate(JSContext* cx, Realm* callerRealm, 36 Handle<JSObject*> target, MutableHandle<Value> res); 37 38 bool GetWrappedValue(JSContext* cx, Realm* callerRealm, Handle<Value> value, 39 MutableHandle<Value> res); 40 41 } // namespace js 42 43 #endif