loplugin:stringviewparam: operator +=

Change-Id: I30ce1b5bd8fb168da7067c1967c5af2569df2653
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/108512
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/compilerplugins/clang/stringviewparam.cxx b/compilerplugins/clang/stringviewparam.cxx
index 9d3aac5fed0a..a96d8cad4929 100644
--- a/compilerplugins/clang/stringviewparam.cxx
+++ b/compilerplugins/clang/stringviewparam.cxx
@@ -195,6 +195,14 @@ SmallVector<DeclRefExpr const*, 2> relevantCXXOperatorCallExpr(CXXOperatorCallEx
         }
         return v;
     }
+    if (op == OO_PlusEqual)
+    {
+        if (relevantStringType(expr->getArg(0)->getType()) != StringType::RtlOustring)
+        {
+            return {};
+        }
+        return wrap(relevantDeclRefExpr(expr->getArg(1)));
+    }
     return {};
 }