155682Smarkm/* 2233294Sstas * Copyright (c) 1997 - 2005 Kungliga Tekniska H��gskolan 3178825Sdfr * (Royal Institute of Technology, Stockholm, Sweden). 4178825Sdfr * All rights reserved. 555682Smarkm * 6178825Sdfr * Redistribution and use in source and binary forms, with or without 7178825Sdfr * modification, are permitted provided that the following conditions 8178825Sdfr * are met: 955682Smarkm * 10178825Sdfr * 1. Redistributions of source code must retain the above copyright 11178825Sdfr * notice, this list of conditions and the following disclaimer. 1255682Smarkm * 13178825Sdfr * 2. Redistributions in binary form must reproduce the above copyright 14178825Sdfr * notice, this list of conditions and the following disclaimer in the 15178825Sdfr * documentation and/or other materials provided with the distribution. 1655682Smarkm * 17178825Sdfr * 3. Neither the name of the Institute nor the names of its contributors 18178825Sdfr * may be used to endorse or promote products derived from this software 19178825Sdfr * without specific prior written permission. 2055682Smarkm * 21178825Sdfr * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22178825Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23178825Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24178825Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25178825Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26178825Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27178825Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28178825Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29178825Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30178825Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31178825Sdfr * SUCH DAMAGE. 3255682Smarkm */ 3355682Smarkm 3455682Smarkm#include "gen_locl.h" 35178825Sdfr#include "lex.h" 3655682Smarkm 3755682Smarkmstatic Hashtab *htab; 3855682Smarkm 3955682Smarkmstatic int 40178825Sdfrcmp(void *a, void *b) 4155682Smarkm{ 42178825Sdfr Symbol *s1 = (Symbol *) a; 43178825Sdfr Symbol *s2 = (Symbol *) b; 4455682Smarkm 45178825Sdfr return strcmp(s1->name, s2->name); 4655682Smarkm} 4755682Smarkm 4855682Smarkmstatic unsigned 49178825Sdfrhash(void *a) 5055682Smarkm{ 51178825Sdfr Symbol *s = (Symbol *) a; 5255682Smarkm 53178825Sdfr return hashjpw(s->name); 5455682Smarkm} 5555682Smarkm 5655682Smarkmvoid 57178825Sdfrinitsym(void) 5855682Smarkm{ 59178825Sdfr htab = hashtabnew(101, cmp, hash); 6055682Smarkm} 6155682Smarkm 6255682Smarkm 6355682Smarkmvoid 64178825Sdfroutput_name(char *s) 6555682Smarkm{ 66178825Sdfr char *p; 6755682Smarkm 68178825Sdfr for (p = s; *p; ++p) 69233294Sstas if (*p == '-' || *p == '.') 70178825Sdfr *p = '_'; 7155682Smarkm} 7255682Smarkm 73178825SdfrSymbol * 74178825Sdfraddsym(char *name) 7555682Smarkm{ 76178825Sdfr Symbol key, *s; 7755682Smarkm 78178825Sdfr key.name = name; 79178825Sdfr s = (Symbol *) hashtabsearch(htab, (void *) &key); 80178825Sdfr if (s == NULL) { 81178825Sdfr s = (Symbol *) emalloc(sizeof(*s)); 82178825Sdfr s->name = name; 83178825Sdfr s->gen_name = estrdup(name); 84178825Sdfr output_name(s->gen_name); 85178825Sdfr s->stype = SUndefined; 86178825Sdfr hashtabadd(htab, s); 87178825Sdfr } 88178825Sdfr return s; 8955682Smarkm} 90178825Sdfr 91178825Sdfrstatic int 92178825Sdfrcheckfunc(void *ptr, void *arg) 93178825Sdfr{ 94178825Sdfr Symbol *s = ptr; 95178825Sdfr if (s->stype == SUndefined) { 96233294Sstas lex_error_message("%s is still undefined\n", s->name); 97178825Sdfr *(int *) arg = 1; 98178825Sdfr } 99178825Sdfr return 0; 100178825Sdfr} 101178825Sdfr 102178825Sdfrint 103178825Sdfrcheckundefined(void) 104178825Sdfr{ 105178825Sdfr int f = 0; 106178825Sdfr hashtabforeach(htab, checkfunc, &f); 107178825Sdfr return f; 108178825Sdfr} 109