Antlr4.Codegen.Model.RuleFunction.AddContextGetters C# (CSharp) Метод

        public virtual void AddContextGetters(OutputModelFactory factory, ICollection<RuleAST> contextASTs)
        {
            IList<AltAST> unlabeledAlternatives = new List<AltAST>();
            IDictionary<string, IList<AltAST>> labeledAlternatives = new Dictionary<string, IList<AltAST>>();

            foreach (RuleAST ast in contextASTs)
            {
                try
                {
                    foreach (var altAst in rule.g.GetUnlabeledAlternatives(ast))
                        unlabeledAlternatives.Add(altAst);

                    foreach (KeyValuePair<string, IList<System.Tuple<int, AltAST>>> entry in rule.g.GetLabeledAlternatives(ast))
                    {
                        IList<AltAST> list;
                        if (!labeledAlternatives.TryGetValue(entry.Key, out list))
                        {
                            list = new List<AltAST>();
                            labeledAlternatives[entry.Key] = list;
                        }

                        foreach (System.Tuple<int, AltAST> tuple in entry.Value)
                        {
                            list.Add(tuple.Item2);
                        }
                    }
                }
                catch (RecognitionException)
                {
                }
            }

            // Add ctx labels for elements in alts with no '#' label
            if (unlabeledAlternatives.Count > 0)
            {
                ISet<Decl.Decl> decls = GetDeclsForAllElements(unlabeledAlternatives);

                // put directly in base context
                foreach (Decl.Decl decl in decls)
                {
                    ruleCtx.AddDecl(decl);
                }
            }

            // make structs for '#' labeled alts, define ctx labels for elements
            altLabelCtxs = new Dictionary<string, AltLabelStructDecl>();
            if (labeledAlternatives.Count > 0)
            {
                foreach (KeyValuePair<string, IList<AltAST>> entry in labeledAlternatives)
                {
                    AltLabelStructDecl labelDecl = new AltLabelStructDecl(factory, rule, entry.Key);
                    altLabelCtxs[entry.Key] = labelDecl;
                    ISet<Decl.Decl> decls = GetDeclsForAllElements(entry.Value);
                    foreach (Decl.Decl decl in decls)
                    {
                        labelDecl.AddDecl(decl);
                    }
                }
            }
        }