1 | // Copyright (C) 2019 The Qt Company Ltd. |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | |
4 | #ifndef QV4CALLDATA_P_H |
5 | #define QV4CALLDATA_P_H |
6 | |
7 | // |
8 | // W A R N I N G |
9 | // ------------- |
10 | // |
11 | // This file is not part of the Qt API. It exists purely as an |
12 | // implementation detail. This header file may change from version to |
13 | // version without notice, or even be removed. |
14 | // |
15 | // We mean it. |
16 | // |
17 | |
18 | #include <private/qv4staticvalue_p.h> |
19 | |
20 | QT_BEGIN_NAMESPACE |
21 | |
22 | namespace QV4 { |
23 | |
24 | struct CallData |
25 | { |
26 | enum Offsets { |
27 | Function = 0, |
28 | Context = 1, |
29 | Accumulator = 2, |
30 | This = 3, |
31 | NewTarget = 4, |
32 | Argc = 5, |
33 | |
34 | LastOffset = Argc, |
35 | OffsetCount = LastOffset + 1 |
36 | }; |
37 | |
38 | StaticValue function; |
39 | StaticValue context; |
40 | StaticValue accumulator; |
41 | StaticValue thisObject; |
42 | StaticValue newTarget; |
43 | StaticValue _argc; |
44 | |
45 | int argc() const { |
46 | Q_ASSERT(_argc.isInteger()); |
47 | return _argc.int_32(); |
48 | } |
49 | |
50 | void setArgc(int argc) { |
51 | Q_ASSERT(argc >= 0); |
52 | _argc.setInt_32(argc); |
53 | } |
54 | |
55 | inline ReturnedValue argument(int i) const { |
56 | return i < argc() ? args[i].asReturnedValue() |
57 | : StaticValue::undefinedValue().asReturnedValue(); |
58 | } |
59 | |
60 | StaticValue args[1]; |
61 | |
62 | static constexpr int () |
63 | { |
64 | return offsetof(CallData, args) / sizeof(QV4::StaticValue); |
65 | } |
66 | |
67 | template<typename Value> |
68 | Value *argValues(); |
69 | |
70 | template<typename Value> |
71 | const Value *argValues() const; |
72 | }; |
73 | |
74 | Q_STATIC_ASSERT(std::is_standard_layout<CallData>::value); |
75 | Q_STATIC_ASSERT(offsetof(CallData, function ) == CallData::Function * sizeof(StaticValue)); |
76 | Q_STATIC_ASSERT(offsetof(CallData, context ) == CallData::Context * sizeof(StaticValue)); |
77 | Q_STATIC_ASSERT(offsetof(CallData, accumulator) == CallData::Accumulator * sizeof(StaticValue)); |
78 | Q_STATIC_ASSERT(offsetof(CallData, thisObject ) == CallData::This * sizeof(StaticValue)); |
79 | Q_STATIC_ASSERT(offsetof(CallData, newTarget ) == CallData::NewTarget * sizeof(StaticValue)); |
80 | Q_STATIC_ASSERT(offsetof(CallData, _argc ) == CallData::Argc * sizeof(StaticValue)); |
81 | Q_STATIC_ASSERT(offsetof(CallData, args ) == 6 * sizeof(StaticValue)); |
82 | |
83 | } // namespace QV4 |
84 | |
85 | QT_END_NAMESPACE |
86 | |
87 | #endif // QV4CALLDATA_P_H |
88 | |