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39 | |
40 | #ifndef QV4CALLDATA_P_H |
41 | #define QV4CALLDATA_P_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is not part of the Qt API. It exists purely as an |
48 | // implementation detail. This header file may change from version to |
49 | // version without notice, or even be removed. |
50 | // |
51 | // We mean it. |
52 | // |
53 | |
54 | #include <private/qv4staticvalue_p.h> |
55 | |
56 | QT_BEGIN_NAMESPACE |
57 | |
58 | namespace QV4 { |
59 | |
60 | struct CallData |
61 | { |
62 | enum Offsets { |
63 | Function = 0, |
64 | Context = 1, |
65 | Accumulator = 2, |
66 | This = 3, |
67 | NewTarget = 4, |
68 | Argc = 5, |
69 | |
70 | LastOffset = Argc, |
71 | OffsetCount = LastOffset + 1 |
72 | }; |
73 | |
74 | StaticValue function; |
75 | StaticValue context; |
76 | StaticValue accumulator; |
77 | StaticValue thisObject; |
78 | StaticValue newTarget; |
79 | StaticValue _argc; |
80 | |
81 | int argc() const { |
82 | Q_ASSERT(_argc.isInteger()); |
83 | return _argc.int_32(); |
84 | } |
85 | |
86 | void setArgc(int argc) { |
87 | Q_ASSERT(argc >= 0); |
88 | _argc.setInt_32(argc); |
89 | } |
90 | |
91 | inline ReturnedValue argument(int i) const { |
92 | return i < argc() ? args[i].asReturnedValue() |
93 | : StaticValue::undefinedValue().asReturnedValue(); |
94 | } |
95 | |
96 | StaticValue args[1]; |
97 | |
98 | static Q_DECL_CONSTEXPR int () |
99 | { |
100 | return offsetof(CallData, args) / sizeof(QV4::StaticValue); |
101 | } |
102 | |
103 | template<typename Value> |
104 | Value *argValues(); |
105 | |
106 | template<typename Value> |
107 | const Value *argValues() const; |
108 | }; |
109 | |
110 | Q_STATIC_ASSERT(std::is_standard_layout<CallData>::value); |
111 | Q_STATIC_ASSERT(offsetof(CallData, function ) == CallData::Function * sizeof(StaticValue)); |
112 | Q_STATIC_ASSERT(offsetof(CallData, context ) == CallData::Context * sizeof(StaticValue)); |
113 | Q_STATIC_ASSERT(offsetof(CallData, accumulator) == CallData::Accumulator * sizeof(StaticValue)); |
114 | Q_STATIC_ASSERT(offsetof(CallData, thisObject ) == CallData::This * sizeof(StaticValue)); |
115 | Q_STATIC_ASSERT(offsetof(CallData, newTarget ) == CallData::NewTarget * sizeof(StaticValue)); |
116 | Q_STATIC_ASSERT(offsetof(CallData, _argc ) == CallData::Argc * sizeof(StaticValue)); |
117 | Q_STATIC_ASSERT(offsetof(CallData, args ) == 6 * sizeof(StaticValue)); |
118 | |
119 | } // namespace QV4 |
120 | |
121 | QT_END_NAMESPACE |
122 | |
123 | #endif // QV4CALLDATA_P_H |
124 | |