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/*
** Splint - annotation-assisted static program checker
** Copyright (C) 1994-2003 University of Virginia,
** Massachusetts Institute of Technology
**
** This program 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 of the License, or (at your
** option) any later version.
**
** This program 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 for more details.
**
** The GNU General Public License is available from http://www.gnu.org/ or
** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
** MA 02111-1307, USA.
**
** For information on splint: info@splint.org
** To report a bug: splint-bug@splint.org
** For more information: http://www.splint.org
*/
/*
** tokentable.c
*/
# include "splintMacros.nf"
# include "basic.h"
# include "osd.h"
# include "tokentable.h"
static long unsigned MaxToken;
static /*@null@*/ /*@only@*/ o_ltoken *TokenTable;
static void AllocTokenTable (void) /*@modifies TokenTable, MaxToken@*/ ;
ltoken
LSLInsertToken (ltokenCode cod, lsymbol sym, lsymbol rTxt, bool def)
{
while (sym >= MaxToken)
{
AllocTokenTable ();
}
llassert (TokenTable != NULL);
if (ltoken_isUndefined (TokenTable[sym]))
{
TokenTable[sym] = ltoken_create (cod, sym);
ltoken_setRawText (TokenTable[sym], rTxt);
ltoken_setDefined (TokenTable[sym], def);
}
return TokenTable[sym];
}
void
LSLUpdateToken (ltokenCode cod, lsymbol sym, bool def)
{
llassert (TokenTable != NULL);
if (!ltoken_isUndefined (TokenTable[sym]))
{
ltoken_setCode (TokenTable[sym], cod);
ltoken_setDefined (TokenTable[sym], def);
}
else
{
llfatalbug (message ("LSLUpdateToken: token not in table: %d, text: %s",
(int) cod, cstring_fromChars (lsymbol_toChars (sym))));
}
}
void
LSLSetTokenHasSyn (lsymbol sym, bool syn)
{
llassert (TokenTable != NULL);
if (!ltoken_isUndefined (TokenTable[sym]))
{
ltoken_setHasSyn (TokenTable[sym], syn);
}
else
{
llbuglit ("LSLSetTokenHasSyn: null token");
}
}
ltoken LSLGetToken (lsymbol sym)
{
llassert (TokenTable != NULL);
if (!((sym < MaxToken) || (!ltoken_isUndefined (TokenTable[sym]))))
{
llcontbuglit ("LSLGetToken: bad argument");
return TokenTable[0];
}
return TokenTable[sym];
}
/*@exposed@*/ ltoken
LSLReserveToken (ltokenCode cod, char *txt)
{
lsymbol sym;
sym = lsymbol_fromChars (txt);
/*
** Reserved tokens never have raw text like synonyms.
*/
return LSLInsertToken (cod, sym, lsymbol_undefined, TRUE);
}
static void
AllocTokenTable (void)
{
long unsigned oldSize, newSize;
long unsigned int i;
oldSize = MaxToken;
if (oldSize == 0)
{
newSize = INITTOKENTABLE;
llassert (TokenTable == NULL);
TokenTable = (ltoken *)
dmalloc (size_fromLongUnsigned (newSize * sizeof (*TokenTable)));
}
else
{
o_ltoken *oldTokenTable = TokenTable;
newSize = (long unsigned) (DELTATOKENTABLE * oldSize);
TokenTable = (ltoken *)
dmalloc (size_fromLongUnsigned (newSize * sizeof (*TokenTable)));
llassert (oldSize > 0);
llassert (oldTokenTable != NULL);
for (i = 0; i < oldSize; i++)
{
TokenTable[i] = oldTokenTable[i];
}
sfree (oldTokenTable);
}
/*@+loopexec@*/
for (i = oldSize; i < newSize; i++)
{
TokenTable[i] = ltoken_undefined;
}
/*@=loopexec@*/
MaxToken = newSize;
/*@-compdef@*/ } /*=compdef@*/
void
ltokenTableInit (void)
{
MaxToken = 0;
}
void
ltokenTableCleanup (void)
{
if (TokenTable != NULL)
{
long unsigned i;
for (i = 0; i < MaxToken; i++)
{
ltoken_free (TokenTable[i]);
}
sfree (TokenTable);
TokenTable = NULL;
}
}
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