Super.java

/*
 * @(#) $(JCGO)/jtrsrc/com/ivmaisoft/jcgo/Super.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;

/**
 * Grammar production for super.
 ** 
 * Formats: SUPER Expression(QualifiedName) DOT SUPER
 */

final class Super extends This {

    Super() {
    }

    Super(Term a) {
        super(a);
    }

    void processPass1(Context c) {
        if (super.exprType() == null && terms[0].notEmpty()) {
            terms[0] = new ClassOrIfaceType(new LexTerm(LexTerm.ID,
                    terms[0].dottedName()));
        }
        super.processPass1(c);
    }

    ExpressionType exprType() {
        ExpressionType classDefnExpr = super.exprType();
        assertCond(classDefnExpr != null);
        ClassDefinition classDefn = classDefnExpr.receiverClass();
        ClassDefinition aclass = classDefn.superClass();
        if (aclass == null) {
            aclass = classDefn;
        }
        return aclass;
    }

    ExpressionType actualExprType() {
        ExpressionType classDefnExpr = super.exprType();
        assertCond(classDefnExpr != null);
        ClassDefinition classDefn = classDefnExpr.receiverClass();
        ClassDefinition aclass = classDefn.superClass();
        if (aclass == null) {
            aclass = classDefn;
        }
        return aclass.asExactClassType();
    }

    boolean isSuper(boolean onlyEmpty) {
        return !onlyEmpty || !terms[0].notEmpty();
    }

    int tokenCount() {
        return 0;
    }

    ExpressionType traceClassInit() {
        return null;
    }
}