usr/src/usr.bin/pascal/pxp/var.c

/*-
 * Copyright (c) 1980 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char sccsid[] = "@(#)var.c       5.2 (Berkeley) 4/16/91";
#endif /* not lint */

/*
 * pxp - Pascal execution profiler
 *
 * Bill Joy UCB
 * Version 1.2 January 1979
 */

#include "0.h"
#include "tree.h"

STATIC  int varcnt = -1;
/*
 * Var declaration part
 */
varbeg(l, vline)
        int l, vline;
{

        line = l;
        if (nodecl)
                printoff();
        puthedr();
        putcm();
        ppnl();
        indent();
        ppkw("var");
        ppgoin(DECL);
        varcnt = 0;
        setline(vline);
}

var(vline, vidl, vtype)
        int vline;
        register int *vidl;
        int *vtype;
{

        if (varcnt)
                putcm();
        setline(vline);
        ppitem();
        if (vidl != NIL)
                for (;;) {
                        ppid(vidl[1]);
                        vidl = vidl[2];
                        if (vidl == NIL)
                                break;
                        ppsep(", ");
                }
        else
                ppid("{identifier list}");
        ppsep(":");
        gtype(vtype);
        ppsep(";");
        setinfo(vline);
        putcml();
        varcnt++;
}

varend()
{

        if (varcnt == -1)
                return;
        if (varcnt == 0)
                ppid("{variable decls}");
        ppgoout(DECL);
        varcnt = -1;
}