1 files changed, 67 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/stringconcatauto.cxx b/compilerplugins/clang/test/stringconcatauto.cxx
new file mode 100644
index 000000000..6c9a72c29
--- /dev/null
+++ b/compilerplugins/clang/test/stringconcatauto.cxx
@@ -0,0 +1,67 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * Based on LLVM/Clang.
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ */
+
+#include <rtl/ustring.hxx>
+
+void foo()
+{
+    auto str1 = "str1" + OUString::number( 10 );
+    // expected-error-re@-1 {{creating a variable of type 'rtl::OUStringConcat<{{.*}}>' will make it reference temporaries}}
+    // expected-note@-2 {{use OUString instead}}
+    OUString str2 = "str2" + OUString::number( 20 ) + "ing";
+    const auto& str3 = "str3" + OUString::number( 30 );
+    // expected-error-re@-1 {{creating a variable of type 'const rtl::OUStringConcat<{{.*}}> &' will make it reference temporaries}}
+    // expected-note@-2 {{use OUString instead}}
+    const auto str4 = "str4" + OString::number( 40 );
+    // expected-error-re@-1 {{creating a variable of type 'const rtl::OStringConcat<{{.*}}>' will make it reference temporaries}}
+    // expected-note@-2 {{use OString instead}}
+    auto str5 = OUString::number( 50 );
+    // expected-error-re@-1 {{creating a variable of type 'rtl::OUStringNumber<{{.*}}>' will make it reference temporaries}}
+    // expected-note@-2 {{use OUString instead}}
+    (void) str1;
+    (void) str2;
+    (void) str3;
+    (void) str4;
+    (void) str5;
+}
+
+struct A
+{
+    auto bar()
+    // expected-error-re@-1 {{returning a variable of type 'rtl::OStringConcat<{{.*}}>' will make it reference temporaries}}
+    // expected-note@-2 {{use OString instead}}
+    {
+        return "bar" + OString::number( 110 );
+    }
+    auto baz()
+    // expected-error-re@-1 {{returning a variable of type 'rtl::OStringNumber<{{.*}}>' will make it reference temporaries}}
+    // expected-note@-2 {{use OString instead}}
+    {
+        return OString::number( 120 );
+    }
+};
+
+template< typename T >
+void fun( const T& par )
+// parameters are without warnings
+{
+    const T& var = par;
+    // expected-error-re@-1 {{creating a variable of type 'const rtl::OUStringConcat<{{.*}}> &' will make it reference temporaries}}
+    // expected-note@-2 {{use OUString instead}}
+    (void) var;
+}
+
+void testfun()
+{
+    fun( "fun" + OUString::number( 200 ));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */