| 1 | // Copyright (C) 2022 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QTVERSIONCHECKS_H |
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| 5 | #define QTVERSIONCHECKS_H |
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| 6 | |
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| 7 | #if 0 |
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| 8 | #pragma qt_class(QtVersionChecks) |
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| 9 | #pragma qt_sync_stop_processing |
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| 10 | #endif |
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| 11 | |
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| 12 | #include <QtCore/qtconfiginclude.h> |
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| 13 | |
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| 14 | /* |
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| 15 | QT_VERSION is (major << 16) | (minor << 8) | patch. |
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| 16 | */ |
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| 17 | #define QT_VERSION QT_VERSION_CHECK(QT_VERSION_MAJOR, QT_VERSION_MINOR, QT_VERSION_PATCH) |
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| 18 | /* |
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| 19 | can be used like #if (QT_VERSION >= QT_VERSION_CHECK(6, 4, 0)) |
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| 20 | */ |
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| 21 | #define QT_VERSION_CHECK(major, minor, patch) ((major<<16)|(minor<<8)|(patch)) |
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| 22 | |
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| 23 | /* |
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| 24 | Helper macros to make some simple code active in Qt 6 or Qt 7 only, |
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| 25 | like: |
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| 26 | struct QT6_ONLY(Q_CORE_EXPORT) QTrivialClass |
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| 27 | { |
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| 28 | void QT7_ONLY(Q_CORE_EXPORT) void operate(); |
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| 29 | } |
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| 30 | */ |
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| 31 | #if QT_VERSION_MAJOR == 7 || defined(QT_BOOTSTRAPPED) |
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| 32 | # define QT7_ONLY(...) __VA_ARGS__ |
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| 33 | # define QT6_ONLY(...) |
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| 34 | #elif QT_VERSION_MAJOR == 6 |
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| 35 | # define QT7_ONLY(...) |
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| 36 | # define QT6_ONLY(...) __VA_ARGS__ |
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| 37 | #else |
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| 38 | # error Qt major version not 6 or 7 |
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| 39 | #endif |
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| 40 | |
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| 41 | /* Macro and tag type to help overload resolution on functions |
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| 42 | that are, e.g., QT_REMOVED_SINCE'ed. Example use: |
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| 43 | |
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| 44 | #if QT_CORE_REMOVED_SINCE(6, 4) |
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| 45 | int size() const; |
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| 46 | #endif |
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| 47 | qsizetype size(QT6_DECL_NEW_OVERLOAD) const; |
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| 48 | |
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| 49 | in the normal cpp file: |
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| 50 | |
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| 51 | qsizetype size(QT6_IMPL_NEW_OVERLOAD) const { |
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| 52 | ~~~ |
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| 53 | } |
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| 54 | |
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| 55 | in removed_api.cpp: |
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| 56 | |
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| 57 | int size() const { return int(size(QT6_CALL_NEW_OVERLOAD)); } |
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| 58 | */ |
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| 59 | #ifdef Q_QDOC |
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| 60 | # define QT6_DECL_NEW_OVERLOAD |
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| 61 | # define QT6_DECL_NEW_OVERLOAD_TAIL |
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| 62 | # define QT6_IMPL_NEW_OVERLOAD |
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| 63 | # define QT6_IMPL_NEW_OVERLOAD_TAIL |
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| 64 | # define QT6_CALL_NEW_OVERLOAD |
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| 65 | # define QT6_CALL_NEW_OVERLOAD_TAIL |
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| 66 | #else |
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| 67 | # define QT6_DECL_NEW_OVERLOAD QT6_ONLY(Qt::Disambiguated_t = Qt::Disambiguated) |
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| 68 | # define QT6_DECL_NEW_OVERLOAD_TAIL QT6_ONLY(, QT6_DECL_NEW_OVERLOAD) |
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| 69 | # define QT6_IMPL_NEW_OVERLOAD QT6_ONLY(Qt::Disambiguated_t) |
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| 70 | # define QT6_IMPL_NEW_OVERLOAD_TAIL QT6_ONLY(, QT6_IMPL_NEW_OVERLOAD) |
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| 71 | # define QT6_CALL_NEW_OVERLOAD QT6_ONLY(Qt::Disambiguated) |
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| 72 | # define QT6_CALL_NEW_OVERLOAD_TAIL QT6_ONLY(, QT6_CALL_NEW_OVERLOAD) |
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| 73 | #endif |
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| 74 | |
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| 75 | #endif /* QTVERSIONCHECKS_H */ |
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| 76 | |
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