-#include <iostream>
-#include <string>
+/** @file */
+////////////////////////////////////////////////////////////////////////////////////////
+//
+// This file is part of Boost Statechart Viewer.
+//
+// Boost Statechart Viewer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Boost Statechart Viewer is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Boost Statechart Viewer. If not, see <http://www.gnu.org/licenses/>.
+//
+////////////////////////////////////////////////////////////////////////////////////////
+
+//standard header files
#include <fstream>
-#include <list>
-
+//LLVM Header files
#include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Host.h"
-#include "llvm/Config/config.h"
-
-#include "clang/Frontend/DiagnosticOptions.h"
-#include "clang/Frontend/TextDiagnosticPrinter.h"
-
-#include "clang/Basic/LangOptions.h"
-#include "clang/Basic/FileSystemOptions.h"
-
-#include "clang/Index/TranslationUnit.h"
-#include "clang/Basic/SourceManager.h"
-#include "clang/Lex/HeaderSearch.h"
-#include "clang/Basic/FileManager.h"
-
-#include "clang/Frontend/HeaderSearchOptions.h"
-#include "clang/Frontend/Utils.h"
-
-#include "clang/Basic/TargetOptions.h"
-#include "clang/Basic/TargetInfo.h"
+#include "llvm/Support/raw_os_ostream.h"
-#include "clang/Lex/Preprocessor.h"
-#include "clang/Frontend/PreprocessorOptions.h"
-#include "clang/Frontend/FrontendOptions.h"
-
-#include "clang/Frontend/CompilerInvocation.h"
-
-#include "clang/Basic/IdentifierTable.h"
-#include "clang/Basic/Builtins.h"
-
-#include "clang/AST/ASTContext.h"
+//clang header files
#include "clang/AST/ASTConsumer.h"
-#include "clang/Sema/Sema.h"
-#include "clang/AST/DeclBase.h"
-#include "clang/AST/Type.h"
-#include "clang/AST/Decl.h"
-#include "clang/Sema/Lookup.h"
-#include "clang/Sema/Ownership.h"
-#include "clang/AST/DeclGroup.h"
+#include "clang/AST/CXXInheritance.h"
+#include "clang/AST/RecursiveASTVisitor.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Frontend/FrontendPluginRegistry.h"
-#include "clang/Parse/Parser.h"
-
-#include "clang/Parse/ParseAST.h"
-#include "clang/Basic/Version.h"
+using namespace clang;
+using namespace std;
-#include "llvm/Support/CommandLine.h"
+class Statechart
+{
+public:
+ class Transition
+ {
+ public:
+ string src, dst, event;
+ Transition(string src, string dst, string event) : src(src), dst(dst), event(event) {}
+ };
+ string name;
+ string name_of_start;
+ list<Transition> transitions;
+ list<string> cReactions; /** list of custom reactions. After all files are traversed this list should be empty. */
+ list<string> events;
+ list<string> states;
+
+ void write_dot_file(string fn)
+ {
+ ofstream f(fn.c_str());
+ f << "digraph " << name << " {\n";
+ f << " " << name_of_start << " [peripheries=2]\n";
+ for (string& s : states) {
+ f << " " << s << "\n";
+ }
-//my own header files
-#include "stringoper.h"
-#include "commandlineopt.h"
+ for (Transition &t : transitions) {
+ f << t.src << " -> " << t.dst << " [label = \"" << t.event << "\"]\n";
+ }
-using namespace clang;
+ f << "}";
+ }
+};
-class FindStates : public ASTConsumer
+class MyCXXRecordDecl : public CXXRecordDecl
{
- std::list<string> transitions;
- std::list<string> events;
- std::list<string> states;
- std::string name_of_machine;
- std::string name_of_start;
- FullSourceLoc *fSloc;
- public:
-
- virtual void Initialize(ASTContext &ctx)//run after the AST is constructed
- {
- SourceLocation loc;
- name_of_start = "";
- name_of_machine = "";
- SourceManager &sman = ctx.getSourceManager();
- fSloc = new FullSourceLoc(loc, sman);
- }
+ static bool FindBaseClassString(const CXXBaseSpecifier *Specifier,
+ CXXBasePath &Path,
+ void *qualName)
+ {
+ string qn(static_cast<const char*>(qualName));
+ const RecordType *rt = Specifier->getType()->getAs<RecordType>();
+ assert(rt);
+ TagDecl *canon = rt->getDecl()->getCanonicalDecl();
+ return canon->getQualifiedNameAsString() == qn;
+ }
+
+public:
+ bool isDerivedFrom(const char *baseStr, CXXBaseSpecifier const **Base = 0) const {
+ CXXBasePaths Paths(/*FindAmbiguities=*/false, /*RecordPaths=*/!!Base, /*DetectVirtual=*/false);
+ Paths.setOrigin(const_cast<MyCXXRecordDecl*>(this));
+ if (!lookupInBases(&FindBaseClassString, const_cast<char*>(baseStr), Paths))
+ return false;
+ if (Base)
+ *Base = Paths.front().back().Base;
+ return true;
+ }
+};
+
- virtual void HandleTopLevelDecl(DeclGroupRef DGR)// traverse all top level declarations
+class Visitor : public RecursiveASTVisitor<Visitor>
+{
+ ASTContext *Context;
+ Statechart ≻
+ DiagnosticsEngine &Diags;
+ unsigned diag_unhandled_reaction_type, diag_unhandled_reaction_decl,
+ diag_found_state, diag_found_statemachine;
+
+public:
+ bool shouldVisitTemplateInstantiations() const { return true; }
+
+ explicit Visitor(ASTContext *Context, Statechart &sc, DiagnosticsEngine &Diags)
+ : Context(Context), sc(sc), Diags(Diags)
+ {
+ diag_found_statemachine =
+ Diags.getCustomDiagID(DiagnosticsEngine::Note, "Found statemachine '%0'");
+ diag_found_state =
+ Diags.getCustomDiagID(DiagnosticsEngine::Note, "Found state '%0'");
+ diag_unhandled_reaction_type =
+ Diags.getCustomDiagID(DiagnosticsEngine::Error, "Unhandled reaction type '%0'");
+ diag_unhandled_reaction_decl =
+ Diags.getCustomDiagID(DiagnosticsEngine::Error, "Unhandled reaction decl '%0'");
+ }
+
+ DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID) { return Diags.Report(Loc, DiagID); }
+
+ void HandleReaction(const Type *T, const SourceLocation Loc, CXXRecordDecl *SrcState)
+ {
+ if (const ElaboratedType *ET = dyn_cast<ElaboratedType>(T))
+ HandleReaction(ET->getNamedType().getTypePtr(), Loc, SrcState);
+ else if (const TemplateSpecializationType *TST = dyn_cast<TemplateSpecializationType>(T)) {
+ string name = TST->getTemplateName().getAsTemplateDecl()->getQualifiedNameAsString();
+ if (name == "boost::statechart::transition") {
+ const Type *EventType = TST->getArg(0).getAsType().getTypePtr();
+ const Type *DstStateType = TST->getArg(1).getAsType().getTypePtr();
+ CXXRecordDecl *Event = EventType->getAsCXXRecordDecl();
+ CXXRecordDecl *DstState = DstStateType->getAsCXXRecordDecl();
+
+ sc.transitions.push_back(Statechart::Transition(SrcState->getName(), DstState->getName(),
+ Event->getName()));
+ } else if (name == "boost::mpl::list") {
+ for (TemplateSpecializationType::iterator Arg = TST->begin(), End = TST->end(); Arg != End; ++Arg)
+ HandleReaction(Arg->getAsType().getTypePtr(), Loc, SrcState);
+ }
+ //->getDecl()->getQualifiedNameAsString();
+ } else
+ Diag(Loc, diag_unhandled_reaction_type) << T->getTypeClassName();
+ }
+
+ void HandleReaction(const NamedDecl *Decl, CXXRecordDecl *SrcState)
+ {
+ if (const TypedefDecl *r = dyn_cast<TypedefDecl>(Decl))
+ HandleReaction(r->getCanonicalDecl()->getUnderlyingType().getTypePtr(),
+ r->getLocStart(), SrcState);
+ else
+ Diag(Decl->getLocation(), diag_unhandled_reaction_decl) << Decl->getDeclKindName();
+ }
+
+
+ bool VisitCXXRecordDecl(CXXRecordDecl *Declaration)
+ {
+ if (!Declaration->isCompleteDefinition())
+ return true;
+
+ MyCXXRecordDecl *RecordDecl = static_cast<MyCXXRecordDecl*>(Declaration);
+ const CXXBaseSpecifier *Base;
+
+ if (RecordDecl->isDerivedFrom("boost::statechart::simple_state"))
{
- SourceLocation loc;
- std::string line;
- std::string super_class, output;
- llvm::raw_string_ostream x(output);
- for (DeclGroupRef::iterator i = DGR.begin(), e = DGR.end(); i != e; ++i)
- {
- const Decl *decl = *i;
- loc = decl->getLocation();
- if(loc.isValid())
- {
- const NamedDecl *namedDecl = dyn_cast<NamedDecl>(decl);
- //std::cout<<decl->getDeclKindName()<<"\n";
- if (const TagDecl *tagDecl = dyn_cast<TagDecl>(decl))
- {
- if(tagDecl->isStruct() || tagDecl->isClass()) //is it a structure or class
- {
- const CXXRecordDecl *cRecDecl = dyn_cast<CXXRecordDecl>(decl);
- decl->print(x);
- //decl->dump();
- line = cut_commentary(clean_spaces(get_line_of_code(x.str())));
- output = "";
- if(is_derived(line))
- {
- if(name_of_machine == "")
- {
- find_name_of_machine(cRecDecl, line);
- }
- else
- {
- if(find_states(cRecDecl, line))
- {
- const DeclContext *declCont = tagDecl->castToDeclContext(tagDecl);
- std::cout << "New state: " << namedDecl->getNameAsString() << "\n";
- find_transitions(namedDecl->getNameAsString(), declCont);
- }
- }
- }
- }
- }
- if(const NamespaceDecl *namespaceDecl = dyn_cast<NamespaceDecl>(decl))
- {
- DeclContext *declCont = namespaceDecl->castToDeclContext(namespaceDecl);
- //declCont->dumpDeclContext();
- recursive_visit(declCont);
-
- }
- }
- }
+ string state(RecordDecl->getName()); //getQualifiedNameAsString());
+ Diag(RecordDecl->getLocStart(), diag_found_state) << state;
+ sc.states.push_back(state);
+
+ IdentifierInfo& II = Context->Idents.get("reactions");
+ for (DeclContext::lookup_result Reactions = RecordDecl->lookup(DeclarationName(&II));
+ Reactions.first != Reactions.second; ++Reactions.first)
+ HandleReaction(*Reactions.first, RecordDecl);
}
- void recursive_visit(const DeclContext *declCont) //recursively visit all decls hidden inside namespaces
+ else if (RecordDecl->isDerivedFrom("boost::statechart::state_machine", &Base))
{
- std::string line, output;
- SourceLocation loc;
- llvm::raw_string_ostream x(output);
- for (DeclContext::decl_iterator i = declCont->decls_begin(), e = declCont->decls_end(); i != e; ++i)
- {
- const Decl *decl = *i;
- const NamedDecl *namedDecl = dyn_cast<NamedDecl>(decl);
-
- //std::cout<<"a "<<decl->getDeclKindName()<<"\n";
- loc = decl->getLocation();
- if(loc.isValid())
- {
- if (const TagDecl *tagDecl = dyn_cast<TagDecl>(decl))
- {
- if(tagDecl->isStruct() || tagDecl->isClass()) //is it a structure or class
- {
- const CXXRecordDecl *cRecDecl = dyn_cast<CXXRecordDecl>(decl);
- decl->print(x);
- line = cut_commentary(clean_spaces(get_line_of_code(x.str())));
- output = "";
- if(is_derived(line))
- {
- if(name_of_machine == "")
- {
- find_name_of_machine(cRecDecl, line);
- }
- else
- {
- if(find_states(cRecDecl, line))
- {
- const DeclContext *declCont = tagDecl->castToDeclContext(tagDecl);
- //states.push_back(namedDecl->getNameAsString());
- std::cout << "New state: " << namedDecl->getNameAsString() << "\n";
- find_transitions(namedDecl->getNameAsString(), declCont);
- }
- }
- }
- }
- }
- if(const NamespaceDecl *namespaceDecl = dyn_cast<NamespaceDecl>(decl))
- {
- DeclContext *declCont = namespaceDecl->castToDeclContext(namespaceDecl);
- //declCont->dumpDeclContext();
- recursive_visit(declCont);
- }
- }
- }
- }
- bool find_states(const CXXRecordDecl *cRecDecl, std::string line) // test if the struct/class is the state (must be derived from simple_state)
- {
- std::string super_class = get_super_class(line), base;
- if(cRecDecl->getNumBases()>1)
- {
- for(unsigned i = 0; i<cRecDecl->getNumBases();i++ )
- {
- if(i!=cRecDecl->getNumBases()-1) base = get_first_base(super_class);
- else base = super_class;
- if(is_state(super_class))
- {
- //std::cout<<get_params(super_class);
- states.push_back(get_params(super_class));
- return true;
- }
- else
- {
- super_class = get_next_base(super_class);
- }
- }
- return false;
- }
- else
- {
- if(is_state(super_class))
- {
- //std::cout<<get_params(super_class);
- states.push_back(get_params(super_class));
- return true;
- }
- else return false;
- }
- }
-
- void find_name_of_machine(const CXXRecordDecl *cRecDecl, std::string line) // find name of the state machine and the start state
- {
- std::string super_class = get_super_class(line), base, params;
-
- int pos = 0;
- if(cRecDecl->getNumBases()>1)
- {
- for(unsigned i = 0; i<cRecDecl->getNumBases();i++ )
- {
- if(i!=cRecDecl->getNumBases()-1) base = get_first_base(super_class);
- else base = super_class;
- if(is_machine(base))
- {
- params = get_params(base);
- pos = params.find(",");
- name_of_machine = params.substr(0,pos);
- name_of_start = params.substr(pos);
- std::cout<<"Name of the state machine: "<<name_of_machine<<"\n";
- std::cout<<"Name of the first state: "<<name_of_start<<"\n";
- }
- else
- {
- super_class = get_next_base(super_class);
- }
- }
- }
- else
- {
- if(is_machine(super_class))
- {
- //std::cout<<super_class;
- params = get_params(super_class);
- //std::cout<<params;
- pos = params.find(",");
- name_of_machine = cut_namespaces(params.substr(0,pos));
- name_of_start = cut_namespaces(params.substr(pos+1));
- std::cout<<"Name of the state machine:"<<name_of_machine<<"\n";
- std::cout<<"Name of the first state:"<<name_of_start<<"\n";
- }
- }
- }
+ sc.name = RecordDecl->getQualifiedNameAsString();
+ Diag(RecordDecl->getLocStart(), diag_found_statemachine) << sc.name;
- void find_transitions (const std::string name_of_state,const DeclContext *declCont) // traverse all methods for finding declarations of transitions
- {
- std::string output, line, dest, params, base;
- llvm::raw_string_ostream x(output);
- int num;
- for (DeclContext::decl_iterator i = declCont->decls_begin(), e = declCont->decls_end(); i != e; ++i)
- {
- const Decl *decl = *i;
- if (const TypedefDecl *typedDecl = dyn_cast<TypedefDecl>(decl))
- {
- decl->print(x);
- output = x.str();
- line = clean_spaces(cut_typedef(output));
- num = count(output,'<');
- if(line.compare(0,12,"intreactions")==0)
- {
- std::cout<<"Error during finding transitions. At least one of the transitions in this state("<<name_of_state<<") is not valid.\n";
- dump_error(decl);
- exit(1);
- }
- if(num>1)
- {
- num-=1;
- if(is_list(line))
- {
- line = get_inner_part(line);
- }
- }
- for(int j = 0;j<num;j++)
- {
- if(j!=num-1) base = get_first_base(line);
- else base = line;
- if(is_transition(base))
- {
- dest = name_of_state;
- params = get_params(base);
- dest.append(",");
- dest.append(params);
- transitions.push_back(dest);
- line = get_next_base(line);
- }
- else
- {
- line = get_next_base(line);
- }
- }
- output = "";
- }
- }
- }
- void dump_error (const Decl *decl)
- {
- std::string output;
- int pos1, pos2;
- const SourceManager &sman = fSloc->getManager();
- const SourceLocation loc = decl->getLocation();
- llvm::raw_string_ostream x(output);
- loc.print(x,sman);
- output = x.str();
- pos1 = output.find(":");
- pos2 = output.rfind(":");
- std::cout<<"In file: "<<output.substr(0,pos1)<<" at line: "<<output.substr(pos1+1, pos2-pos1-1) <<"\n";
+ if (const ElaboratedType *ET = dyn_cast<ElaboratedType>(Base->getType())) {
+ if (const TemplateSpecializationType *TST = dyn_cast<TemplateSpecializationType>(ET->getNamedType())) {
+ sc.name_of_start = TST->getArg(1).getAsType()->getAsCXXRecordDecl()->getName();
+ }
+ }
}
- void save_to_file(std::string output)
+ else if (RecordDecl->isDerivedFrom("boost::statechart::event"))
{
- std::string state, str, context, ctx;
- int pos1, pos2, cnt, subs;
- std::ofstream filestr(output.c_str());
- std::cout<<output<<"\n";
- filestr<<"digraph "<< name_of_machine<< " {\n";
- context = name_of_machine;
- for(list<string>::iterator i = states.begin();i!=states.end();i++) // write all states in the context of the automaton
- {
- state = *i;
- cnt = count(state,',');
- if(cnt==1)
- {
- pos1 = state.find(",");
- ctx = cut_namespaces(state.substr(pos1+1));
- //std::cout<<name_of_machine.length();
- if(ctx.compare(0,context.length(),context)==0)
- {
- filestr<<cut_namespaces(state.substr(0,pos1))<<";\n";
- states.erase(i);
- i--;
- }
- }
- if(cnt==2)
- {
- pos1 = state.find(",");
- pos2 = state.rfind(",");
- ctx = cut_namespaces(state.substr(pos1+1,pos2-pos1-1));
- //std::cout<<ctx<<" "<<context<<"\n";
- if(ctx.compare(0,context.length(),context)==0)
- {
- filestr<<cut_namespaces(state.substr(0,pos1))<<";\n";
- }
- }
- }
- filestr<<name_of_start<<" [peripheries=2] ;\n";
- subs = 0;
- while(!states.empty()) // substates ?
- {
- state = states.front();
- filestr<<"subgraph cluster"<<subs<<" {\n";
- pos1 = state.find(",");
- pos2 = state.rfind(",");
- context = cut_namespaces(state.substr(0,pos1));
- filestr<<"label=\""<<context<<"\";\n";
- filestr<<cut_namespaces(state.substr(pos2+1))<<" [peripheries=2] ;\n";
- states.pop_front();
- //std::cout<<states.size();
- for(list<string>::iterator i = states.begin();i!=states.end();i++)
- {
- state = *i;
- cnt = count(state,',');
- //std::cout<<state<<" \n";
- if(cnt==1)
- {
- pos1 = state.find(",");
- ctx = cut_namespaces(state.substr(pos1+1));
-
- //std::cout<<ctx<<" "<<context<<"\n";
- if(ctx.compare(0,context.length(),context)==0)
- {
- filestr<<cut_namespaces(state.substr(0,pos1))<<";\n";
- states.erase(i);
- i--;
- }
- }
- if(cnt==2)
- {
- pos1 = state.find(",");
- pos2 = state.rfind(",");
- ctx = cut_namespaces(state.substr(pos1+1,pos2-pos1-1));
- if(ctx.compare(0,context.length(),context)==0)
- {
- filestr<<cut_namespaces(state.substr(0,pos1))<<";\n";
- //std::cout<<ctx<<"\n";
- }
- }
- }
- filestr<<"}\n";
- subs+=1;
- }
- for(list<string>::iterator i = transitions.begin();i!=transitions.end();i++) // write all transitions
- {
- state = *i;
- pos1 = state.find(",");
- filestr<<cut_namespaces(state.substr(0,pos1))<<"->";
- pos2 = state.rfind(",");
- filestr<<cut_namespaces(state.substr(pos2+1));
- filestr<<"[label=\""<<cut_namespaces(state.substr(pos1+1,pos2-pos1-1))<<"\"];\n";
- }
- filestr<<"}";
- filestr.close();
+ sc.events.push_back(RecordDecl->getNameAsString());
}
+ return true;
+ }
};
-int main(int argc, char *argv[])
+
+class VisualizeStatechartConsumer : public clang::ASTConsumer
{
- llvm::cl::ParseCommandLineOptions(argc, argv);
- std::cout<<"Input file: "<<inputFilename<<"\n";
- DiagnosticOptions diagnosticOptions;
- TextDiagnosticPrinter *tdp = new TextDiagnosticPrinter(llvm::nulls(), diagnosticOptions);
- llvm::IntrusiveRefCntPtr<DiagnosticIDs> dis(new DiagnosticIDs());
- Diagnostic diag(dis,tdp);
- FileSystemOptions fileSysOpt;
- LangOptions lang;
- lang.BCPLComment=1;
- lang.CPlusPlus=1;
- FileManager fm (fileSysOpt);
-
- SourceManager sm ( diag, fm);
- HeaderSearch *headers = new HeaderSearch(fm);
- CompilerInvocation::setLangDefaults(lang, IK_ObjCXX);
-
- HeaderSearchOptions hsopts;
- hsopts.ResourceDir=LLVM_PREFIX "/lib/clang/" CLANG_VERSION_STRING;
- for(unsigned i = 0; i<includeFiles.size();i++)
- {
- hsopts.AddPath(includeFiles[i],
- clang::frontend::Angled,
- false,
- false,
- true);
- }
- TargetOptions to;
- to.Triple = llvm::sys::getHostTriple();
- TargetInfo *ti = TargetInfo::CreateTargetInfo(diag, to);
- clang::ApplyHeaderSearchOptions(
- *headers,
- hsopts,
- lang,
- ti->getTriple());
- Preprocessor pp(diag, lang, *ti, sm, *headers);
- FrontendOptions f;
- PreprocessorOptions ppio;
- InitializePreprocessor(pp, ppio,hsopts,f);
- const FileEntry *file = fm.getFile(inputFilename);
- sm.createMainFileID(file);
- IdentifierTable tab(lang);
- SelectorTable sel;
- Builtin::Context builtins(*ti);
- FindStates c;
- ASTContext ctx(lang, sm, *ti, tab, sel, builtins,0);
- tdp->BeginSourceFile(lang, &pp);
- ParseAST(pp, &c, ctx, false, false);
- tdp->EndSourceFile();
- c.save_to_file(outputFile);
- return 0;
-
-}
+ Statechart statechart;
+ Visitor visitor;
+ string destFileName;
+public:
+ explicit VisualizeStatechartConsumer(ASTContext *Context, std::string destFileName,
+ DiagnosticsEngine &D)
+ : visitor(Context, statechart, D), destFileName(destFileName) {}
+
+ virtual void HandleTranslationUnit(clang::ASTContext &Context) {
+ visitor.TraverseDecl(Context.getTranslationUnitDecl());
+ statechart.write_dot_file(destFileName);
+ }
+};
+
+class VisualizeStatechartAction : public PluginASTAction
+{
+protected:
+ ASTConsumer *CreateASTConsumer(CompilerInstance &CI, llvm::StringRef) {
+ size_t dot = getCurrentFile().find_last_of('.');
+ std::string dest = getCurrentFile().substr(0, dot);
+ dest.append(".dot");
+ return new VisualizeStatechartConsumer(&CI.getASTContext(), dest, CI.getDiagnostics());
+ }
+
+ bool ParseArgs(const CompilerInstance &CI,
+ const std::vector<std::string>& args) {
+ for (unsigned i = 0, e = args.size(); i != e; ++i) {
+ llvm::errs() << "Visualizer arg = " << args[i] << "\n";
+
+ // Example error handling.
+ if (args[i] == "-an-error") {
+ DiagnosticsEngine &D = CI.getDiagnostics();
+ unsigned DiagID = D.getCustomDiagID(
+ DiagnosticsEngine::Error, "invalid argument '" + args[i] + "'");
+ D.Report(DiagID);
+ return false;
+ }
+ }
+ if (args.size() && args[0] == "help")
+ PrintHelp(llvm::errs());
+
+ return true;
+ }
+ void PrintHelp(llvm::raw_ostream& ros) {
+ ros << "Help for Visualize Statechart plugin goes here\n";
+ }
+
+};
+
+static FrontendPluginRegistry::Add<VisualizeStatechartAction> X("visualize-statechart", "visualize statechart");
+
+// Local Variables:
+// c-basic-offset: 4
+// End: