code: public final void entryRuleXFunctionTypeRef() throws RecognitionException {
          try {
              // InternalXtype.g:109:1: ( ruleXFunctionTypeRef EOF )
              // InternalXtype.g:110:1: ruleXFunctionTypeRef EOF
              {
              if ( state.backtracking==0 ) {
                 before(grammarAccess.getXFunctionTypeRefRule()); 
              }
              pushFollow(FOLLOW_1);
              ruleXFunctionTypeRef();
  
              state._fsp--;
              if (state.failed) return ;
              if ( state.backtracking==0 ) {
                 after(grammarAccess.getXFunctionTypeRefRule()); 
              }
              match(input,EOF,FOLLOW_2); if (state.failed) return ;
  
              }
  
          }
          catch (RecognitionException re) {
              reportError(re);
              recover(input,re);
          }
          finally {
          }
          return ;
      }
docs: InternalXtype.g:108:1: entryRuleXFunctionTypeRef : ruleXFunctionTypeRef EOF ;