Antlr4.Semantics.BasicSemanticChecks.ModeDef C# (CSharp) Method

        public override void ModeDef(GrammarAST m, GrammarAST ID)
        {
            if (!g.IsLexer())
            {
                g.tool.errMgr.GrammarError(ErrorType.MODE_NOT_IN_LEXER, g.fileName,
                                           ID.Token, ID.Token.Text, g);
            }
        }