Improved loplugin:stringconstant (now that GCC 7 supports it)

Change-Id: I8f83c1941b8f39b261005939f4dcf3577ae9fc6f
Reviewed-on: https://gerrit.libreoffice.org/76702
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/compilerplugins/clang/test/stringconstant.cxx b/compilerplugins/clang/test/stringconstant.cxx
index 49ae3b68d035..066648c8871d 100644
--- a/compilerplugins/clang/test/stringconstant.cxx
+++ b/compilerplugins/clang/test/stringconstant.cxx
@@ -28,6 +28,30 @@ struct Foo2 {
     void foo(OString const &) const {}
 };
 
+OString ret1() {
+    return OString("foo"); // expected-error {{elide constructor call [loplugin:stringconstant]}}
+}
+
+OString const ret2() {
+    return OString("foo"); // expected-error {{elide constructor call [loplugin:stringconstant]}}
+}
+
+auto ret3() {
+    return OString("foo");
+}
+
+OUString ret4() {
+    return OUString("foo"); // expected-error {{elide constructor call [loplugin:stringconstant]}}
+}
+
+OUString const ret5() {
+    return OUString("foo"); // expected-error {{elide constructor call [loplugin:stringconstant]}}
+}
+
+auto ret6() {
+    return OUString("foo");
+}
+
 int main() {
     char const s1[] = "foo";
     char const * const s2 = "foo";