code: def visitNonRefValueType(self, ctx: jsgParser.NonRefValueTypeContext):
          
          if ctx.LEXER_ID_REF():                  # Reference to a lexer token
              self._lexeridref = as_token(ctx)
          elif ctx.STRING():                      # Anonymous lexer token
              from pyjsg.parser_impl.jsg_lexerruleblock_parser import JSGLexerRuleBlock
              lrb = JSGLexerRuleBlock(self._context)
              lrb.add_string(ctx.getText()[1:-1], False)
              self._lexeridref = self._context.anon_id()
              self._context.grammarelts[self._lexeridref] = lrb
          else:
              self.visitChildren(ctx)
docs: nonRefValueType: LEXER_ID_REF | STRING | builtinValueType | objectExpr | arrayExpr  
                               | OPREN typeAlternatives CPREN | ANY