token.c

/*
 *  TccGen - The Tiny C Compiler backend
 *
 *  Copyright (c) 2001-2004 Fabrice Bellard
 *            (c) 2024 Rochus Keller
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "token.h"
#include "helper.h"
#include "tccstate.h"
#include "values.h"

void tok_str_new(TokenString *s)
{
    s->str = NULL;
    s->len = s->lastlen = 0;
    s->allocated_len = 0;
    s->last_line_num = -1;
}

TokenString *tok_str_alloc(void)
{
    TokenString *str = (TokenString *)tcc_realloc(0, sizeof *str);
    tok_str_new(str);
    return str;
}

int *tok_str_realloc(TokenString *s, int new_size)
{
    int *str, size;

    size = s->allocated_len;
    if (size < 16)
        size = 16;
    while (size < new_size)
        size = size * 2;
    if (size > s->allocated_len) {
        void* tmp = (void*)s->str;
        str = (int*)tcc_realloc(tmp, size * sizeof(int));
        s->allocated_len = size;
        s->str = str;
    }
    return s->str;
}

void tok_str_add(TokenString *s, int t)
{
    int len, *str;

    len = s->len;
    str = s->str;
    if (len >= s->allocated_len)
        str = tok_str_realloc(s, len + 1);
    str[len++] = t;
    s->len = len;
}

void tok_str_free(TokenString *s)
{
    tcc_free(s);
}