/*
* @(#) $(JCGO)/jtrsrc/com/ivmaisoft/jcgo/FormalParamList.java --
* a part of JCGO translator.
**
* Project: JCGO (http://www.ivmaisoft.com/jcgo/)
* Copyright (C) 2001-2012 Ivan Maidanski <ivmai@mail.ru>
* All rights reserved.
*/
/*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
**
* This software is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License (GPL) for more details.
**
* Linking this library statically or dynamically with other modules is
* making a combined work based on this library. Thus, the terms and
* conditions of the GNU General Public License cover the whole
* combination.
**
* As a special exception, the copyright holders of this library give you
* permission to link this library with independent modules to produce an
* executable, regardless of the license terms of these independent
* modules, and to copy and distribute the resulting executable under
* terms of your choice, provided that you also meet, for each linked
* independent module, the terms and conditions of the license of that
* module. An independent module is a module which is not derived from
* or based on this library. If you modify this library, you may extend
* this exception to your version of the library, but you are not
* obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
package com.ivmaisoft.jcgo;
import java.util.Enumeration;
/**
* Grammar production for a list of formal parameters.
**
* Format: FormalParameter COMMA FormalParameter FormalParameter COMMA
* FormalParamList
*/
final class FormalParamList extends LexNode {
FormalParamList(Term a, Term c) {
super(a, c);
}
static Term prepend(Term param, Term paramList) {
return paramList.notEmpty() ? new FormalParamList(param, paramList)
: param;
}
Term joinParamLists(Term paramList) {
return paramList.notEmpty() ? new FormalParamList(terms[0],
terms[1].joinParamLists(paramList)) : this;
}
Term getTermAt(int index) {
assertCond(index == 0 || index == 1);
return terms[index];
}
Term getArgumentTerm(int index) {
return index > 0 ? terms[1].getArgumentTerm(index - 1) : terms[0]
.getArgumentTerm(0);
}
Term copyParamList(int[] skip) {
Term left = terms[0].copyParamList(skip);
Term right = terms[1].copyParamList(skip);
return left.notEmpty() ? (right.notEmpty() ? new FormalParamList(left,
right) : left) : right;
}
Term makeArgumentList() {
return new ParameterList(terms[0].makeArgumentList(),
terms[1].makeArgumentList());
}
int tokenCount() {
return terms[0].tokenCount() + terms[1].tokenCount();
}
void parameterOutput(OutputContext oc, boolean asArg, int type) {
terms[0].parameterOutput(oc, asArg, type);
terms[1].parameterOutput(oc, asArg, type);
}
void setTraceExprType(Enumeration en) {
terms[0].setTraceExprType(en);
terms[1].setTraceExprType(en);
}
}