]> rtime.felk.cvut.cz Git - boost-statechart-viewer.git/blobdiff - src/visualizer.cpp
Remove diagnostics initialization.
[boost-statechart-viewer.git] / src / visualizer.cpp
index 60308f7c9ba0ec80a340f7d058917c7fdfe494d4..1b9122d5b518ff9f25a4aacb092120ebadc22aee 100644 (file)
@@ -22,6 +22,7 @@
 #include <iomanip>
 #include <fstream>
 #include <map>
+#include <vector>
 
 //LLVM Header files
 #include "llvm/Support/raw_ostream.h"
@@ -62,11 +63,15 @@ namespace Model
     {
        string initialInnerState;
        list<string> defferedEvents;
+       list<string> inStateEvents;
+       bool noTypedef;
     public:
        const string name;
-       explicit State(string name) : name(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);
     };
 
@@ -97,7 +102,10 @@ 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");
-       os << indent << s.name << " [label=<" << label << ">]\n";
+       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()) {
            os << indent << s.name << " -> " << s.initialInnerState << " [style = dashed]\n";
            os << indent << "subgraph cluster_" << s.name << " {\n" << indent_inc;
@@ -259,7 +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();
@@ -274,11 +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_warning;
+       diag_found_state, diag_found_statemachine, diag_no_history, diag_missing_reaction, diag_warning;
+    std::vector<bool> reactMethodInReactions; // Indicates whether i-th react method is referenced from typedef reactions.
+    std::list<eventModel> listOfDefinedEvents;
 
 public:
     bool shouldVisitTemplateInstantiations() const { return true; }
@@ -294,16 +324,33 @@ 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'");
        diag_warning =
            Diags.getCustomDiagID(DiagnosticsEngine::Warning, "'%0' %1");
     }
 
     DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID) { return Diags.Report(Loc, DiagID); }
 
-    void HandleCustomReaction(const CXXRecordDecl *SrcState, const Type *EventType)
+    void checkAllReactMethods(const CXXRecordDecl *SrcState) 
     {
+       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, ++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 reactions";
+           }
+       }
+    }
+    
+    bool HandleCustomReaction(const CXXRecordDecl *SrcState, const Type *EventType)
+    {
+       unsigned i = 0;
        IdentifierInfo& II = ASTCtx->Idents.get("react");
        // TODO: Lookup for react even in base classes - probably by using Sema::LookupQualifiedName()
        for (DeclContext::lookup_const_result ReactRes = SrcState->lookup(DeclarationName(&II));
@@ -312,17 +359,23 @@ public:
                if (React->getNumParams() >= 1) {
                    const ParmVarDecl *p = React->getParamDecl(0);
                    const Type *ParmType = p->getType().getTypePtr();
+                   if (i == reactMethodInReactions.size()) reactMethodInReactions.push_back(false);
                    if (ParmType->isLValueReferenceType())
                        ParmType = dyn_cast<LValueReferenceType>(ParmType)->getPointeeType().getTypePtr();
-                   if (ParmType == EventType)
+                   if (ParmType == EventType) {
                        FindTransitVisitor(model, SrcState, EventType).TraverseStmt(React->getBody());
+                       reactMethodInReactions[i] = true;
+                       return true;
+                   }
                } 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";
+           i++;
        }
+       return false;
     }
 
     void HandleReaction(const Type *T, const SourceLocation Loc, CXXRecordDecl *SrcState)
@@ -337,15 +390,20 @@ public:
                const Type *DstStateType = TST->getArg(1).getAsType().getTypePtr();
                CXXRecordDecl *Event = EventType->getAsCXXRecordDecl();
                CXXRecordDecl *DstState = DstStateType->getAsCXXRecordDecl();
+               listOfDefinedEvents.remove_if(testEventModel(Event->getNameAsString()));
 
                Model::Transition *T = new Model::Transition(SrcState->getName(), DstState->getName(), Event->getName());
                model.transitions.push_back(T);
            } else if (name == "boost::statechart::custom_reaction") {
                const Type *EventType = TST->getArg(0).getAsType().getTypePtr();
-               HandleCustomReaction(SrcState, EventType);
+               if (!HandleCustomReaction(SrcState, EventType)) {
+                   Diag(SrcState->getLocation(), diag_missing_reaction) << EventType->getAsCXXRecordDecl()->getName();
+               }
+               listOfDefinedEvents.remove_if(testEventModel(EventType->getAsCXXRecordDecl()->getNameAsString()));
            } else if (name == "boost::statechart::deferral") {
                const Type *EventType = TST->getArg(0).getAsType().getTypePtr();
                CXXRecordDecl *Event = EventType->getAsCXXRecordDecl();
+               listOfDefinedEvents.remove_if(testEventModel(Event->getNameAsString()));
 
                Model::State *s = model.findState(SrcState->getName());
                assert(s);
@@ -353,6 +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();
+               listOfDefinedEvents.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
@@ -366,29 +433,30 @@ public:
                           r->getLocStart(), SrcState);
        else
            Diag(Decl->getLocation(), diag_unhandled_reaction_decl) << Decl->getDeclKindName();
+       checkAllReactMethods(SrcState);
     }
 
-    TemplateArgumentLoc getTemplateArgLoc(const TypeLoc &T, unsigned ArgNum)
+    TemplateArgumentLoc getTemplateArgLoc(const TypeLoc &T, unsigned ArgNum, bool ignore)
     {
        if (const ElaboratedTypeLoc *ET = dyn_cast<ElaboratedTypeLoc>(&T))
-           return getTemplateArgLoc(ET->getNamedTypeLoc(), ArgNum);
+           return getTemplateArgLoc(ET->getNamedTypeLoc(), ArgNum, ignore);
        else if (const TemplateSpecializationTypeLoc *TST = dyn_cast<TemplateSpecializationTypeLoc>(&T)) {
            if (TST->getNumArgs() >= ArgNum+1) {
                return TST->getArgLoc(ArgNum);
            } else
-               if(ArgNum!=2)
+               if (!ignore)
                    Diag(TST->getBeginLoc(), diag_warning) << TST->getType()->getTypeClassName() << "has not enough arguments" << TST->getSourceRange();
        } else
            Diag(T.getBeginLoc(), diag_warning) << T.getType()->getTypeClassName() << "type as template argument is not supported" << T.getSourceRange();
        return TemplateArgumentLoc();
     }
 
-    TemplateArgumentLoc getTemplateArgLocOfBase(const CXXBaseSpecifier *Base, unsigned ArgNum) {
-       return getTemplateArgLoc(Base->getTypeSourceInfo()->getTypeLoc(), ArgNum);
+    TemplateArgumentLoc getTemplateArgLocOfBase(const CXXBaseSpecifier *Base, unsigned ArgNum, bool ignore) {
+       return getTemplateArgLoc(Base->getTypeSourceInfo()->getTypeLoc(), ArgNum, ignore);
     }
 
-    CXXRecordDecl *getTemplateArgDeclOfBase(const CXXBaseSpecifier *Base, unsigned ArgNum, TemplateArgumentLoc &Loc) {
-       Loc = getTemplateArgLocOfBase(Base, ArgNum);
+    CXXRecordDecl *getTemplateArgDeclOfBase(const CXXBaseSpecifier *Base, unsigned ArgNum, TemplateArgumentLoc &Loc, bool ignore = false) {
+       Loc = getTemplateArgLocOfBase(Base, ArgNum, ignore);
        switch (Loc.getArgument().getKind()) {
        case TemplateArgument::Type:
            return Loc.getTypeSourceInfo()->getType()->getAsCXXRecordDecl();
@@ -401,9 +469,9 @@ public:
        return 0;
     }
 
-    CXXRecordDecl *getTemplateArgDeclOfBase(const CXXBaseSpecifier *Base, unsigned ArgNum) {
+    CXXRecordDecl *getTemplateArgDeclOfBase(const CXXBaseSpecifier *Base, unsigned ArgNum, bool ignore = false) {
        TemplateArgumentLoc Loc;
-       return getTemplateArgDeclOfBase(Base, ArgNum, Loc);
+       return getTemplateArgDeclOfBase(Base, ArgNum, Loc, ignore);
     }
 
     void handleSimpleState(CXXRecordDecl *RecordDecl, const CXXBaseSpecifier *Base)
@@ -411,6 +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
@@ -428,15 +497,16 @@ public:
            }
            c->add(state);
        }
-
+       //TODO support more innitial states
        TemplateArgumentLoc Loc;
        if (MyCXXRecordDecl *InnerInitialState =
-           static_cast<MyCXXRecordDecl*>(getTemplateArgDeclOfBase(Base, 2, Loc))) {
-           if (InnerInitialState->isDerivedFrom("boost::statechart::simple_state") ||
-               InnerInitialState->isDerivedFrom("boost::statechart::state_machine"))
-               state->setInitialInnerState(InnerInitialState->getName());
-           else
-               Diag(Loc.getTypeSourceInfo()->getTypeLoc().getLocStart(), diag_warning)
+           static_cast<MyCXXRecordDecl*>(getTemplateArgDeclOfBase(Base, 2, Loc, true))) {
+             if (InnerInitialState->isDerivedFrom("boost::statechart::simple_state") ||
+               InnerInitialState->isDerivedFrom("boost::statechart::state_machine")) {
+                 state->setInitialInnerState(InnerInitialState->getName());
+           }
+           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();
        }
 
@@ -445,16 +515,13 @@ public:
 
        IdentifierInfo& II = ASTCtx->Idents.get("reactions");
        // TODO: Lookup for reactions even in base classes - probably by using Sema::LookupQualifiedName()
-       // TODO: Find when state has no reactions
        for (DeclContext::lookup_result Reactions = RecordDecl->lookup(DeclarationName(&II));
-            Reactions.first != Reactions.second; ++Reactions.first)
-       {           
-               HandleReaction(*Reactions.first, RecordDecl);
-               typedef_num++;
-       }
+            Reactions.first != Reactions.second; ++Reactions.first, typedef_num++)
+           HandleReaction(*Reactions.first, RecordDecl);
        if(typedef_num == 0) {
-               Diag(RecordDecl->getLocStart(), diag_warning)
-                   << " missing typedef for reactions in state : " << RecordDecl->getName();
+           Diag(RecordDecl->getLocStart(), diag_warning)
+               << RecordDecl->getName() << "state has no typedef for reactions";
+           state->setNoTypedef();
        }
     }
 
@@ -475,8 +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;
@@ -486,11 +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());
-       }
+           listOfDefinedEvents.push_back(eventModel(RecordDecl->getNameAsString(), RecordDecl->getLocation()));
        return true;
     }
+    void printUnusedEventDefinitions() {
+       for(list<eventModel>::iterator it = listOfDefinedEvents.begin(); it!=listOfDefinedEvents.end(); it++)
+           Diag((*it).loc, diag_warning)
+               << (*it).name << "event defined but not used in any state";
+    }
 };
 
 
@@ -506,6 +577,7 @@ public:
 
     virtual void HandleTranslationUnit(clang::ASTContext &Context) {
        visitor.TraverseDecl(Context.getTranslationUnitDecl());
+       visitor.printUnusedEventDefinitions();
        model.write_as_dot_file(destFileName);
     }
 };