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: */