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

        internal virtual bool LegalGrammarOption(string key)
        {
            switch (g.Type)
            {
            case ANTLRParser.LEXER:
                return Grammar.lexerOptions.Contains(key);
            case ANTLRParser.PARSER:
                return Grammar.parserOptions.Contains(key);
            default:
                return Grammar.parserOptions.Contains(key);
            }
        }