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

        public virtual IList<Grammar> GetGrammarAncestors()
        {
            Grammar root = GetOutermostGrammar();
            if (this == root)
                return null;
            IList<Grammar> grammars = new List<Grammar>();
            // walk backwards to root, collecting grammars
            Grammar p = this.parent;
            while (p != null)
            {
                grammars.Insert(0, p); // add to head so in order later
                p = p.parent;
            }
            return grammars;
        }