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Diffstat (limited to '')
| -rw-r--r-- | compilerplugins/clang/test/unusedmember.cxx | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/unusedmember.cxx b/compilerplugins/clang/test/unusedmember.cxx new file mode 100644 index 000000000..a495b7869 --- /dev/null +++ b/compilerplugins/clang/test/unusedmember.cxx @@ -0,0 +1,238 @@ +/* -*- 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/. + */ + +namespace Enum +{ +namespace +{ +struct S +{ + enum E1 + { + E11, + E12 + }; + E1 e1; + enum E2 + { + E21, + E22 + }; + E2 e2; // expected-error {{unused class member [loplugin:unusedmember]}} + enum E3 + { + E31, + E32 + } e3; + enum E4 + { + E41, + E42 + } e4; // expected-error {{unused class member [loplugin:unusedmember]}} +}; +} +void f(S s) +{ + (void)s.e1; + (void)s.e3; +} +} + +namespace ElaboratedEnum +{ +namespace +{ +struct S +{ + S() + { + enum E1 e1 = E11; + (void)e1; + } + enum E1 + { + E11, + E12 + }; + enum E2 + { + E21, + E22 + }; + enum E2 e2; +}; +} +void f() +{ + S s; + (void)s; + (void)s.e2; +} +} + +namespace UnusedEnum +{ +namespace +{ +struct S +{ + enum E // expected-error {{unused class member [loplugin:unusedmember]}} + { + E1, + E2 + }; +}; +} +void f() { (void)S::E1; } +} + +namespace UnusedDataMember +{ +namespace +{ +struct NT +{ + NT(int = 0) {} + ~NT() {} +}; +struct __attribute__((warn_unused)) T +{ + T(int = 0) {} + ~T() {} +}; +struct S +{ + int i1; + int i2; // expected-error {{unused class member [loplugin:unusedmember]}} + int const& i3; // expected-error {{unused class member [loplugin:unusedmember]}} + NT nt; + T t1; + T t2; // expected-error {{unused class member [loplugin:unusedmember]}} + T const& t3; // expected-error {{unused class member [loplugin:unusedmember]}} + S() + : i1(0) + , i3(i1) + , t1(0) + , t3(t1) + { + (void)i1; + (void)t1; + } +}; +} +void f() +{ + S s; + (void)s; +} +} + +namespace Alignof +{ +namespace +{ +struct S +{ + int i; +}; +} +void f() { (void)alignof(S const(&)[][10]); } +} + +namespace Aligned +{ +namespace +{ +struct S1 +{ + int i; +}; +struct S2 +{ + int i __attribute__((aligned(__alignof__(S1)))); +}; +} +void f() +{ + S2 s; + s.i = 0; +} +} + +namespace Bases +{ +namespace +{ +struct S1 +{ + int i1; +}; +struct S2 : S1 +{ + int i2; +}; +struct S3 : S2 +{ +}; +} +void f() { (void)sizeof(S3); } +} + +namespace Unnamed +{ +namespace +{ +struct S +{ + struct + { + struct + { + int i; + } s2; + struct // anonymous struct extension (widely supported) + { + int j; + }; + int k; + } s1; +#if false //TODO: see corresponding TODO in compilerplugins/clang/unusedmember.cxx + static constexpr struct + { + int l; // expected-error {{unused class member [loplugin:unusedmember]}} + } s = {}; +#endif + typedef struct + { + int m; // expected-error {{unused class member [loplugin:unusedmember]}} + } t; // expected-error {{unused class member [loplugin:unusedmember]}} +}; +} +void f() +{ + (void)sizeof(S); +#if false //TODO: see corresponding TODO in compilerplugins/clang/unusedmember.cxx + (void)S::s; // avoid "unused variable 's'" (non-loplugin) warning +#endif +} +} + +int main() +{ + (void)&Enum::f; + (void)&ElaboratedEnum::f; + (void)&UnusedEnum::f; + (void)&UnusedDataMember::f; + (void)&Alignof::f; + (void)&Aligned::f; + (void)&Bases::f; + (void)&Unnamed::f; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |