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39 | #ifndef QV4ARGUMENTSOBJECTS_H |
40 | #define QV4ARGUMENTSOBJECTS_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 ArgumentsObjectMembers(class, Member) \ |
63 | Member(class, Pointer, CallContext *, context) \ |
64 | Member(class, NoMark, bool, fullyCreated) \ |
65 | Member(class, NoMark, uint, argCount) \ |
66 | Member(class, NoMark, quint64, mapped) |
67 | |
68 | DECLARE_HEAP_OBJECT(ArgumentsObject, Object) { |
69 | DECLARE_MARKOBJECTS(ArgumentsObject); |
70 | enum { |
71 | LengthPropertyIndex = 0, |
72 | SymbolIteratorPropertyIndex = 1, |
73 | CalleePropertyIndex = 2 |
74 | }; |
75 | void init(CppStackFrame *frame); |
76 | }; |
77 | |
78 | #define StrictArgumentsObjectMembers(class, Member) |
79 | |
80 | DECLARE_HEAP_OBJECT(StrictArgumentsObject, Object) { |
81 | enum { |
82 | LengthPropertyIndex = 0, |
83 | SymbolIteratorPropertyIndex = 1, |
84 | CalleePropertyIndex = 2, |
85 | CalleeSetterPropertyIndex = 3 |
86 | }; |
87 | void init(CppStackFrame *frame); |
88 | }; |
89 | |
90 | } |
91 | |
92 | struct ArgumentsObject: Object { |
93 | V4_OBJECT2(ArgumentsObject, Object) |
94 | Q_MANAGED_TYPE(ArgumentsObject) |
95 | |
96 | Heap::CallContext *context() const { return d()->context; } |
97 | bool fullyCreated() const { return d()->fullyCreated; } |
98 | |
99 | static bool isNonStrictArgumentsObject(Managed *m) { |
100 | return m->vtable() == staticVTable(); |
101 | } |
102 | |
103 | static bool virtualDefineOwnProperty(Managed *m, PropertyKey id, const Property *desc, PropertyAttributes attrs); |
104 | static ReturnedValue virtualGet(const Managed *m, PropertyKey id, const Value *receiver, bool *hasProperty); |
105 | static bool virtualPut(Managed *m, PropertyKey id, const Value &value, Value *receiver); |
106 | static bool virtualDeleteProperty(Managed *m, PropertyKey id); |
107 | static PropertyAttributes virtualGetOwnProperty(const Managed *m, PropertyKey id, Property *p); |
108 | static qint64 virtualGetLength(const Managed *m); |
109 | static OwnPropertyKeyIterator *virtualOwnPropertyKeys(const Object *m, Value *target); |
110 | |
111 | void fullyCreate(); |
112 | |
113 | // There's a slight hack here, as this limits the amount of mapped arguments to 64, but that should be |
114 | // more than enough for all practical uses of arguments |
115 | bool isMapped(uint arg) const { |
116 | return arg < 64 && (d()->mapped & (1ull << arg)); |
117 | } |
118 | |
119 | void removeMapping(uint arg) { |
120 | if (arg < 64) |
121 | (d()->mapped &= ~(1ull << arg)); |
122 | } |
123 | |
124 | }; |
125 | |
126 | struct StrictArgumentsObject : Object { |
127 | V4_OBJECT2(StrictArgumentsObject, Object) |
128 | Q_MANAGED_TYPE(ArgumentsObject) |
129 | }; |
130 | |
131 | } |
132 | |
133 | QT_END_NAMESPACE |
134 | |
135 | #endif |
136 | |
137 | |