Add more warnings

diff --git a/src/visualizer.cpp b/src/visualizer.cpp
index ea391489e0b3eb94b7c631651f622e150c4972ec..8a4171071aac954950b511078b58ba9a5f536f21 100644 (file)
--- a/src/visualizer.cpp
+++ b/src/visualizer.cpp
@@ -308,14 +308,20 @@ public:
        // TODO: Lookup for react even in base classes - probably by using Sema::LookupQualifiedName()
        for (DeclContext::lookup_const_result ReactRes = SrcState->lookup(DeclarationName(&II));
             ReactRes.first != ReactRes.second; ++ReactRes.first) {
-           if (CXXMethodDecl *React = dyn_cast<CXXMethodDecl>(*ReactRes.first))
-               if (const ParmVarDecl *p = React->getParamDecl(0)) {
+           if (CXXMethodDecl *React = dyn_cast<CXXMethodDecl>(*ReactRes.first)) {
+               if (React->getNumParams() >= 1) {
+                   const ParmVarDecl *p = React->getParamDecl(0);
                    const Type *ParmType = p->getType().getTypePtr();
                    if (ParmType->isLValueReferenceType())
                        ParmType = dyn_cast<LValueReferenceType>(ParmType)->getPointeeType().getTypePtr();
                    if (ParmType == EventType)
                        FindTransitVisitor(model, SrcState, EventType).TraverseStmt(React->getBody());
-               }
+               } else
+                   Diag(React->getLocStart(), diag_warning)
+                       << React << "has not a parameter";
+           } else
+               Diag((*ReactRes.first)->getSourceRange().getBegin(), diag_warning)
+                   << (*ReactRes.first)->getDeclKindName() << "is not supported as react method";
        }
     }