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/* arg.c: ARGUMENT LISTS
*
* $Id$
* Copyright (c) 2013-2020 Ravenbrook Limited. See end of file for license.
*
* .source: <design/keyword-arguments.rst>.
*/
#include "config.h"
#include "check.h"
#include "mpm.h"
#include "dbgpool.h"
SRCID(arg, "$Id$");
/* ArgCheckCant -- default argument checker
*
* This is a default value for the KeyStruct check field for keywords
* that don't have any meaningful checking they can do.
*/
Bool ArgCheckCant(Arg arg)
{
UNUSED(arg);
return TRUE;
}
static Bool ArgCheckShouldnt(Arg arg)
{
UNUSED(arg);
NOTREACHED;
return FALSE;
}
Bool ArgCheckFormat(Arg arg)
{
CHECKD(Format, arg->val.format);
return TRUE;
}
Bool ArgCheckChain(Arg arg)
{
CHECKD(Chain, arg->val.chain);
return TRUE;
}
Bool ArgCheckSize(Arg arg)
{
UNUSED(arg); /* TODO: Add and call SizeCheck */
return TRUE;
}
Bool ArgCheckAddr(Arg arg)
{
UNUSED(arg); /* TODO: Add and call AddrCheck */
return TRUE;
}
Bool ArgCheckPoolDebugOptions(Arg arg)
{
CHECKD_NOSIG(PoolDebugOptions, (PoolDebugOptions)arg->val.pool_debug_options);
return TRUE;
}
Bool ArgCheckFun(Arg arg)
{
/* TODO: Fix potential pun here on Harvard architectures where
function pointers are not compatible with other pointers. */
CHECKL(FUNCHECK(arg->val.addr_method));
return TRUE;
}
Bool ArgCheckAlign(Arg arg)
{
CHECKL(AlignCheck(arg->val.align));
return TRUE;
}
Bool ArgCheckBool(Arg arg)
{
CHECKL(BoolCheck(arg->val.b));
return TRUE;
}
Bool ArgCheckCount(Arg arg)
{
UNUSED(arg); /* TODO: Add and call CountCheck */
return TRUE;
}
Bool ArgCheckPointer(Arg arg)
{
CHECKL(arg != NULL);
return TRUE;
}
Bool ArgCheckRankSet(Arg arg)
{
CHECKL(COMPATTYPE(RankSet, unsigned));
CHECKL(RankSetCheck(arg->val.u));
return TRUE;
}
Bool ArgCheckRank(Arg arg)
{
CHECKL(RankCheck(arg->val.rank));
return TRUE;
}
Bool ArgCheckdouble(Arg arg)
{
/* Don't call isfinite() here because it's not in C89, and because
infinity is a valid value for MPS_KEY_PAUSE_TIME. */
UNUSED(arg);
return TRUE;
}
Bool ArgCheckPool(Arg arg)
{
CHECKD(Pool, arg->val.pool);
return TRUE;
}
ARG_DEFINE_KEY(ARGS_END, Shouldnt);
ArgStruct mps_args_none[] = {{MPS_KEY_ARGS_END, {0}}};
/* KeyCheck -- check the validity of an argument key */
Bool KeyCheck(Key key)
{
CHECKS(Key, key);
CHECKL(key->name != NULL);
CHECKL(FUNCHECK(key->check));
return TRUE;
}
Bool ArgCheck(Arg arg)
{
CHECKL(arg != NULL);
CHECKD(Key, arg->key);
CHECKL(arg->key->check(arg));
return TRUE;
}
/* ArgCheck -- check the validity of an argument list */
Bool ArgListCheck(ArgList args)
{
Index i;
CHECKL(args != NULL);
for (i = 0; args[i].key != MPS_KEY_ARGS_END; ++i) {
CHECKL(i < MPS_ARGS_MAX);
CHECKD_NOSIG(Arg, &args[i]);
}
return TRUE;
}
/* ArgPick -- try to pick an argument out of the argument list by keyword */
Bool ArgPick(ArgStruct *argOut, ArgList args, Key key)
{
Index i;
AVER(argOut != NULL);
AVERT(ArgList, args);
AVERT(Key, key);
for (i = 0; args[i].key != MPS_KEY_ARGS_END; ++i)
if (args[i].key == key)
goto found;
return FALSE;
found:
AVERT(Arg, &args[i]);
*argOut = args[i];
for(;;) {
args[i] = args[i + 1];
if (args[i].key == MPS_KEY_ARGS_END)
break;
++i;
}
return TRUE;
}
/* ArgRequire -- take a required argument out of the argument list by keyword */
void ArgRequire(ArgStruct *argOut, ArgList args, Key key)
{
Bool b = ArgPick(argOut, args, key);
ASSERT(b, key->name);
}
/* ArgTrivVarargs -- class method to ignore deprecated varargs */
void ArgTrivVarargs(ArgStruct args[MPS_ARGS_MAX], va_list varargs)
{
UNUSED(varargs);
args[0].key = MPS_KEY_ARGS_END;
AVERT(ArgList, args);
}
/* C. COPYRIGHT AND LICENSE
*
* Copyright (C) 2001-2020 Ravenbrook Limited <https://www.ravenbrook.com/>.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
* HOLDER 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.
*/
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