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-rw-r--r--compilerplugins/clang/test/unusedmember.cxx238
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: */