Antlr4.Tool.Grammar.GetAllImportedGrammars C# (CSharp) Method

        public virtual IList<Grammar> GetAllImportedGrammars()
        {
            if (importedGrammars == null)
            {
                return null;
            }

            LinkedHashMap<string, Grammar> delegates = new LinkedHashMap<string, Grammar>();
            foreach (Grammar d in importedGrammars)
            {
                delegates[d.fileName] = d;
                IList<Grammar> ds = d.GetAllImportedGrammars();
                if (ds != null)
                {
                    foreach (Grammar imported in ds)
                    {
                        delegates[imported.fileName] = imported;
                    }
                }
            }

            return new List<Grammar>(delegates.Values);
        }

        public virtual void GenerateATNs(Grammar g)
        {
            DOTGenerator dotGenerator = new DOTGenerator(g);
            IList<Grammar> grammars = new List<Grammar>();
            grammars.Add(g);
            IList<Grammar> imported = g.GetAllImportedGrammars();
            if (imported != null)
            {
                foreach (Grammar importedGrammar in imported)
                    grammars.Add(importedGrammar);
            }

            foreach (Grammar ig in grammars)
            {
                foreach (Rule r in ig.rules.Values)
                {
                    try
                    {
                        string dot = dotGenerator.GetDOT(g.atn.ruleToStartState[r.index], g.IsLexer());
                        if (dot != null)
                        {
                            WriteDOTFile(g, r, dot);
                        }
                    }
                    catch (IOException ioe)
                    {
                        errMgr.ToolError(ErrorType.CANNOT_WRITE_FILE, ioe);
                    }
                }
            }
        }