usr/src/usr.bin/pascal/pdx/sym/sym.rep

/*-
 * Copyright (c) 1982 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.
 *
 *      @(#)sym.rep     5.3 (Berkeley) 4/16/91
 */

/*
 * This file contains the definition of the representation of the SYM type.
 */

struct sym {
        char *symbol;
        char class;
        char blkno;
        SYM *type;
        SYM *chain;
        union {
                int offset;             /* variable address */
                long iconval;           /* integer constant value */
                double fconval;         /* floating constant value */
                struct {                /* range bounds */
                        long lower;
                        long upper;
                } rangev;
                struct {                /* address of function value, code */
                        int offset;
                        ADDRESS codeloc;
                } funcv;
                struct {                /* variant record info */
                        int size;
                        SYM *vtorec;
                        SYM *vtag;
                } varnt;
                struct {                /* information for reserved words */
                        int toknum;
                        int tokval;
                } token;
        } symvalue;
        SYM *func;
        SYM *next_sym;
};