]> rtime.felk.cvut.cz Git - boost-statechart-viewer.git/blobdiff - src/visualizer.cpp
Rename listOfDefinedEvents to unusedEvents
[boost-statechart-viewer.git] / src / visualizer.cpp
index db4163957297d728e1414e9ad44854ecfd2a6438..56823b5b89992d7ef4c4bc79e77eff1bb1bfbcad 100644 (file)
@@ -63,12 +63,14 @@ namespace Model
     {
        string initialInnerState;
        list<string> defferedEvents;
+       list<string> inStateEvents;
        bool noTypedef;
     public:
        const string name;
        explicit State(string name) : noTypedef(false), name(name) {}
        void setInitialInnerState(string name) { initialInnerState = name; }
        void addDeferredEvent(const string &name) { defferedEvents.push_back(name); }
+       void addInStateEvent(const string &name) { inStateEvents.push_back(name); }
        void setNoTypedef() { noTypedef = true;}
        friend ostream& operator<<(ostream& os, const State& s);
     };
@@ -100,6 +102,8 @@ namespace Model
        string label = s.name;
        for (list<string>::const_iterator i = s.defferedEvents.begin(), e = s.defferedEvents.end(); i != e; ++i)
            label.append("<br />").append(*i).append(" / defer");
+       for (list<string>::const_iterator i = s.inStateEvents.begin(), e = s.inStateEvents.end(); i != e; ++i)
+           label.append("<br />").append(*i).append(" / in state");
        if (s.noTypedef) os << indent << s.name << " [label=<" << label << ">, color=\"red\"]\n";
        else os << indent << s.name << " [label=<" << label << ">]\n";
        if (s.size()) {
@@ -263,7 +267,13 @@ public:
        : model(model), SrcState(SrcState), EventType(EventType) {}
 
     bool VisitMemberExpr(MemberExpr *E) {
-       if (E->getMemberNameInfo().getAsString() != "transit")
+       if (E->getMemberNameInfo().getAsString() == "defer_event") {
+               CXXRecordDecl *Event = EventType->getAsCXXRecordDecl();
+
+               Model::State *s = model.findState(SrcState->getName());
+               assert(s);
+               s->addDeferredEvent(Event->getName());
+       } else if (E->getMemberNameInfo().getAsString() != "transit")
            return true;
        if (E->hasExplicitTemplateArgs()) {
            const Type *DstStateType = E->getExplicitTemplateArgs()[0].getArgument().getAsType().getTypePtr();
@@ -278,12 +288,27 @@ public:
 
 class Visitor : public RecursiveASTVisitor<Visitor>
 {
+    struct eventModel {
+       string name;
+       SourceLocation loc;
+       eventModel(string ev, SourceLocation sourceLoc) : name(ev), loc(sourceLoc){}
+    };
+    struct testEventModel {
+       string eventName;
+       testEventModel(string name) : eventName(name){}
+       bool operator() (const eventModel& model) {
+           if (eventName.compare(model.name) == 0)
+               return true;
+           return false;
+       }
+    };
     ASTContext *ASTCtx;
     Model::Model &model;
     DiagnosticsEngine &Diags;
     unsigned diag_unhandled_reaction_type, diag_unhandled_reaction_decl,
        diag_found_state, diag_found_statemachine, diag_no_history, diag_missing_reaction, diag_warning;
-    std::vector<bool> reactMethodVector;
+    std::vector<bool> reactMethodInReactions; // Indicates whether i-th react method is referenced from typedef reactions.
+    std::list<eventModel> unusedEvents;
 
 public:
     bool shouldVisitTemplateInstantiations() const { return true; }
@@ -299,7 +324,7 @@ public:
            Diags.getCustomDiagID(DiagnosticsEngine::Error, "Unhandled reaction type '%0'");
        diag_unhandled_reaction_decl =
            Diags.getCustomDiagID(DiagnosticsEngine::Error, "Unhandled reaction decl '%0'");
-       diag_unhandled_reaction_decl =
+       diag_no_history =
            Diags.getCustomDiagID(DiagnosticsEngine::Error, "History is not yet supported");
        diag_missing_reaction =
            Diags.getCustomDiagID(DiagnosticsEngine::Error, "Missing react method for event '%0'");
@@ -314,21 +339,13 @@ public:
        unsigned i = 0;
        IdentifierInfo& II = ASTCtx->Idents.get("react");
        for (DeclContext::lookup_const_result ReactRes = SrcState->lookup(DeclarationName(&II));
-            ReactRes.first != ReactRes.second; ++ReactRes.first) {
-           if (i<reactMethodVector.size()) {
-               if (reactMethodVector[i] == true) {
-                   CXXMethodDecl *React = dyn_cast<CXXMethodDecl>(*ReactRes.first);
-                   Diag(React->getParamDecl(0)->getLocStart(), diag_warning) 
-                       << React->getParamDecl(0)->getType().getAsString() << " missing in typedef";
-               }
-           } else {
+            ReactRes.first != ReactRes.second; ++ReactRes.first, ++i) {
+           if (i >= reactMethodInReactions.size() || reactMethodInReactions[i] == false) {
                CXXMethodDecl *React = dyn_cast<CXXMethodDecl>(*ReactRes.first);
-               Diag(React->getParamDecl(0)->getLocStart(), diag_warning) 
-                   << React->getParamDecl(0)->getType().getAsString() << " missing in typedef";
+               Diag(React->getParamDecl(0)->getLocStart(), diag_warning)
+                   << React->getParamDecl(0)->getType().getAsString() << " missing in typedef reactions";
            }
-           i++;
        }
-       reactMethodVector.clear();
     }
     
     bool HandleCustomReaction(const CXXRecordDecl *SrcState, const Type *EventType)
@@ -342,12 +359,12 @@ public:
                if (React->getNumParams() >= 1) {
                    const ParmVarDecl *p = React->getParamDecl(0);
                    const Type *ParmType = p->getType().getTypePtr();
-                   if (i == reactMethodVector.size()) reactMethodVector.push_back(false);
+                   if (i == reactMethodInReactions.size()) reactMethodInReactions.push_back(false);
                    if (ParmType->isLValueReferenceType())
                        ParmType = dyn_cast<LValueReferenceType>(ParmType)->getPointeeType().getTypePtr();
                    if (ParmType == EventType) {
                        FindTransitVisitor(model, SrcState, EventType).TraverseStmt(React->getBody());
-                       reactMethodVector[i] = true;
+                       reactMethodInReactions[i] = true;
                        return true;
                    }
                } else
@@ -373,6 +390,7 @@ public:
                const Type *DstStateType = TST->getArg(1).getAsType().getTypePtr();
                CXXRecordDecl *Event = EventType->getAsCXXRecordDecl();
                CXXRecordDecl *DstState = DstStateType->getAsCXXRecordDecl();
+               unusedEvents.remove_if(testEventModel(Event->getNameAsString()));
 
                Model::Transition *T = new Model::Transition(SrcState->getName(), DstState->getName(), Event->getName());
                model.transitions.push_back(T);
@@ -381,9 +399,11 @@ public:
                if (!HandleCustomReaction(SrcState, EventType)) {
                    Diag(SrcState->getLocation(), diag_missing_reaction) << EventType->getAsCXXRecordDecl()->getName();
                }
+               unusedEvents.remove_if(testEventModel(EventType->getAsCXXRecordDecl()->getNameAsString()));
            } else if (name == "boost::statechart::deferral") {
                const Type *EventType = TST->getArg(0).getAsType().getTypePtr();
                CXXRecordDecl *Event = EventType->getAsCXXRecordDecl();
+               unusedEvents.remove_if(testEventModel(Event->getNameAsString()));
 
                Model::State *s = model.findState(SrcState->getName());
                assert(s);
@@ -391,6 +411,15 @@ public:
            } else if (name == "boost::mpl::list") {
                for (TemplateSpecializationType::iterator Arg = TST->begin(), End = TST->end(); Arg != End; ++Arg)
                    HandleReaction(Arg->getAsType().getTypePtr(), Loc, SrcState);
+           } else if (name == "boost::statechart::in_state_reaction") {
+               const Type *EventType = TST->getArg(0).getAsType().getTypePtr();
+               CXXRecordDecl *Event = EventType->getAsCXXRecordDecl();
+               unusedEvents.remove_if(testEventModel(Event->getNameAsString()));
+
+               Model::State *s = model.findState(SrcState->getName());
+               assert(s);
+               s->addInStateEvent(Event->getName());
+             
            } else
                Diag(Loc, diag_unhandled_reaction_type) << name;
        } else
@@ -450,6 +479,7 @@ public:
        int typedef_num = 0;
        string name(RecordDecl->getName()); //getQualifiedNameAsString());
        Diag(RecordDecl->getLocStart(), diag_found_state) << name;
+       reactMethodInReactions.clear();
 
        Model::State *state;
        // Either we saw a reference to forward declared state
@@ -475,8 +505,8 @@ public:
                InnerInitialState->isDerivedFrom("boost::statechart::state_machine")) {
                  state->setInitialInnerState(InnerInitialState->getName());
            }
-           else
-               Diag(Loc.getTypeSourceInfo()->getTypeLoc().getLocStart(), diag_warning)
+           else if (!InnerInitialState->getNameAsString().compare("boost::mpl::list<>"))
+             Diag(Loc.getTypeSourceInfo()->getTypeLoc().getBeginLoc(), diag_warning)
                    << InnerInitialState->getName() << " as inner initial state is not supported" << Loc.getSourceRange();
        }
 
@@ -512,8 +542,9 @@ public:
            return true;
        if (Declaration->getQualifiedNameAsString() == "boost::statechart::state" ||
            Declaration->getQualifiedNameAsString() == "TimedState" ||
-           Declaration->getQualifiedNameAsString() == "TimedSimpleState")
-           return true; // This is an "abstract class" not a real state
+           Declaration->getQualifiedNameAsString() == "TimedSimpleState" ||
+           Declaration->getQualifiedNameAsString() == "boost::statechart::assynchronous_state_machine")
+           return true; // This is an "abstract class" not a real state or real state machine
 
        MyCXXRecordDecl *RecordDecl = static_cast<MyCXXRecordDecl*>(Declaration);
        const CXXBaseSpecifier *Base;
@@ -523,11 +554,14 @@ public:
        else if (RecordDecl->isDerivedFrom("boost::statechart::state_machine", &Base))
            handleStateMachine(RecordDecl, Base);
        else if (RecordDecl->isDerivedFrom("boost::statechart::event"))
-       {
-           //sc.events.push_back(RecordDecl->getNameAsString());
-       }
+           unusedEvents.push_back(eventModel(RecordDecl->getNameAsString(), RecordDecl->getLocation()));
        return true;
     }
+    void printUnusedEventDefinitions() {
+       for(list<eventModel>::iterator it = unusedEvents.begin(); it!=unusedEvents.end(); it++)
+           Diag((*it).loc, diag_warning)
+               << (*it).name << "event defined but not used in any state";
+    }
 };
 
 
@@ -543,6 +577,7 @@ public:
 
     virtual void HandleTranslationUnit(clang::ASTContext &Context) {
        visitor.TraverseDecl(Context.getTranslationUnitDecl());
+       visitor.printUnusedEventDefinitions();
        model.write_as_dot_file(destFileName);
     }
 };