code: public final void ruleParameterReference() throws RecognitionException {
  
          		int stackSize = keepStackSize();
          	
          try {
              // InternalXtext.g:758:2: ( ( ( rule__ParameterReference__ParameterAssignment ) ) )
              // InternalXtext.g:759:2: ( ( rule__ParameterReference__ParameterAssignment ) )
              {
              // InternalXtext.g:759:2: ( ( rule__ParameterReference__ParameterAssignment ) )
              // InternalXtext.g:760:3: ( rule__ParameterReference__ParameterAssignment )
              {
               before(grammarAccess.getParameterReferenceAccess().getParameterAssignment()); 
              // InternalXtext.g:761:3: ( rule__ParameterReference__ParameterAssignment )
              // InternalXtext.g:761:4: rule__ParameterReference__ParameterAssignment
              {
              pushFollow(FollowSets000.FOLLOW_2);
              rule__ParameterReference__ParameterAssignment();
  
              state._fsp--;
  
  
              }
  
               after(grammarAccess.getParameterReferenceAccess().getParameterAssignment()); 
  
              }
  
  
              }
  
          }
          catch (RecognitionException re) {
              reportError(re);
              recover(input,re);
          }
          finally {
  
              	restoreStackSize(stackSize);
  
          }
          return ;
      }
docs: InternalXtext.g:754:1: ruleParameterReference : ( ( rule__ParameterReference__ParameterAssignment ) ) ;