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39 #ifndef QV4PROXY_P_H
40 #define QV4PROXY_P_H
41
42 //
43 // W A R N I N G
44 // -------------
45 //
46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
49 //
50 // We mean it.
51 //
52
53 #include "qv4object_p.h"
54 #include "qv4functionobject_p.h"
55
56 QT_BEGIN_NAMESPACE
57
58 namespace QV4 {
59
60 namespace Heap {
61
62 #define ProxyObjectMembers(class, Member) \
63 Member(class, Pointer, Object *, target) \
64 Member(class, Pointer, Object *, handler)
65
DECLARE_HEAP_OBJECT(ProxyObject,FunctionObject)66 DECLARE_HEAP_OBJECT(ProxyObject, FunctionObject) {
67 DECLARE_MARKOBJECTS(ProxyObject)
68
69 void init(const QV4::Object *target, const QV4::Object *handler);
70 };
71
72 struct ProxyFunctionObject : ProxyObject {
73 void init(const QV4::FunctionObject *target, const QV4::Object *handler);
74 };
75
76 #define ProxyMembers(class, Member) \
77 Member(class, Pointer, Symbol *, revokableProxySymbol) \
78
DECLARE_HEAP_OBJECT(Proxy,FunctionObject)79 DECLARE_HEAP_OBJECT(Proxy, FunctionObject) {
80 DECLARE_MARKOBJECTS(Proxy)
81
82 void init(QV4::ExecutionContext *ctx);
83 };
84
85 }
86
87 /*
88 * The inheritance from FunctionObject is a hack. Regular proxy objects are no function objects.
89 * But this helps implement the proxy for function objects, where we need this and thus gives us
90 * all the virtual methods from ProxyObject without having to duplicate them.
91 *
92 * But it does require a few hacks to make sure we don't recognize regular proxy objects as function
93 * objects in the runtime.
94 */
95 struct ProxyObject : FunctionObject {
96 V4_OBJECT2(ProxyObject, Object)
97 Q_MANAGED_TYPE(ProxyObject)
98 V4_INTERNALCLASS(ProxyObject)
99 enum {
100 IsFunctionObject = false
101 };
102
103 static ReturnedValue virtualGet(const Managed *m, PropertyKey id, const Value *receiver, bool *hasProperty);
104 static bool virtualPut(Managed *m, PropertyKey id, const Value &value, Value *receiver);
105 static bool virtualDeleteProperty(Managed *m, PropertyKey id);
106 static bool virtualHasProperty(const Managed *m, PropertyKey id);
107 static PropertyAttributes virtualGetOwnProperty(const Managed *m, PropertyKey id, Property *p);
108 static bool virtualDefineOwnProperty(Managed *m, PropertyKey id, const Property *p, PropertyAttributes attrs);
109 static bool virtualIsExtensible(const Managed *m);
110 static bool virtualPreventExtensions(Managed *);
111 static Heap::Object *virtualGetPrototypeOf(const Managed *);
112 static bool virtualSetPrototypeOf(Managed *, const Object *);
113 static OwnPropertyKeyIterator *virtualOwnPropertyKeys(const Object *m, Value *iteratorTarget);
114 };
115
116 struct ProxyFunctionObject : ProxyObject {
117 V4_OBJECT2(ProxyFunctionObject, FunctionObject)
118 Q_MANAGED_TYPE(ProxyObject)
119 V4_INTERNALCLASS(ProxyFunctionObject)
120 enum {
121 IsFunctionObject = true
122 };
123
124 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
125 static ReturnedValue virtualCall(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc);
126 };
127
128 struct Proxy : FunctionObject
129 {
130 V4_OBJECT2(Proxy, FunctionObject)
131
132 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
133 static ReturnedValue virtualCall(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
134
135 static ReturnedValue method_revocable(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
136
137 static ReturnedValue method_revoke(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
138 };
139
140 }
141
142 QT_END_NAMESPACE
143
144 #endif // QV4ECMAOBJECTS_P_H
145