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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:54:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:54:39 +0000 |
commit | 267c6f2ac71f92999e969232431ba04678e7437e (patch) | |
tree | 358c9467650e1d0a1d7227a21dac2e3d08b622b2 /compilerplugins/clang/test/optvalue.cxx | |
parent | Initial commit. (diff) | |
download | libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip |
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'compilerplugins/clang/test/optvalue.cxx')
-rw-r--r-- | compilerplugins/clang/test/optvalue.cxx | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/optvalue.cxx b/compilerplugins/clang/test/optvalue.cxx new file mode 100644 index 0000000000..6d1ad86e75 --- /dev/null +++ b/compilerplugins/clang/test/optvalue.cxx @@ -0,0 +1,75 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#include "config_clang.h" + +template <typename Type> class OptValue +{ +public: + OptValue() + : maValue() + , mbHasValue(false) + { + } + explicit OptValue(const Type& rValue) + : maValue(rValue) + , mbHasValue(true) + { + } + + bool has_value() const { return mbHasValue; } + bool operator!() const { return !mbHasValue; } + + const Type& value() const { return maValue; } + const Type& value_or(const Type& rDefValue) const { return mbHasValue ? maValue : rDefValue; } + + Type& operator*() { return maValue; } + Type& emplace() + { + mbHasValue = true; + maValue = Type(); + return maValue; + } + + OptValue& operator=(const Type& rValue) + { + maValue = rValue; + mbHasValue = true; + return *this; + } + bool operator==(const OptValue& rValue) const + { + return ((!mbHasValue && rValue.mbHasValue == false) + || (mbHasValue == rValue.mbHasValue && maValue == rValue.maValue)); + } + +private: + Type maValue; + bool mbHasValue; +}; + +struct AttributeList +{ + OptValue<int> getInteger(); +}; + +namespace test1 +{ +void foo(AttributeList& rAttrs) +{ + // expected-error@+1 {{call to OptValue::value() [loplugin:optvalue]}} + rAttrs.getInteger().value(); + + // no warning expected + OptValue<int> x; + x.value(); +} +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |