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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
56QT_BEGIN_NAMESPACE
57
58namespace QV4 {
59
60struct 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 HeaderSize()
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
110Q_STATIC_ASSERT(std::is_standard_layout<CallData>::value);
111Q_STATIC_ASSERT(offsetof(CallData, function ) == CallData::Function * sizeof(StaticValue));
112Q_STATIC_ASSERT(offsetof(CallData, context ) == CallData::Context * sizeof(StaticValue));
113Q_STATIC_ASSERT(offsetof(CallData, accumulator) == CallData::Accumulator * sizeof(StaticValue));
114Q_STATIC_ASSERT(offsetof(CallData, thisObject ) == CallData::This * sizeof(StaticValue));
115Q_STATIC_ASSERT(offsetof(CallData, newTarget ) == CallData::NewTarget * sizeof(StaticValue));
116Q_STATIC_ASSERT(offsetof(CallData, _argc ) == CallData::Argc * sizeof(StaticValue));
117Q_STATIC_ASSERT(offsetof(CallData, args ) == 6 * sizeof(StaticValue));
118
119} // namespace QV4
120
121QT_END_NAMESPACE
122
123#endif // QV4CALLDATA_P_H
124