mirror of
git://git.sv.gnu.org/emacs.git
synced 2025-12-21 13:10:37 -08:00
105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
/* pool.c: PROTOCOL IMPLEMENTATION
|
|
*
|
|
* $Id$
|
|
* Copyright (c) 2001-2016 Ravenbrook Limited. See end of file for license.
|
|
*
|
|
* See design.mps.protocol.
|
|
*/
|
|
|
|
#include "mpm.h"
|
|
|
|
SRCID(protocol, "$Id$");
|
|
|
|
|
|
/* ProtocolClassCheck -- check a protocol class */
|
|
|
|
Bool ProtocolClassCheck(ProtocolClass class)
|
|
{
|
|
CHECKS(ProtocolClass, class);
|
|
CHECKU(ProtocolClass, class->superclass);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* ProtocolInstCheck -- check a protocol instance */
|
|
|
|
Bool ProtocolInstCheck(ProtocolInst inst)
|
|
{
|
|
CHECKS(ProtocolInst, inst);
|
|
CHECKD(ProtocolClass, inst->class);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* ProtocolIsSubclass -- a predicate for testing subclass relationships
|
|
*
|
|
* A protocol class is always a subclass of itself.
|
|
*/
|
|
|
|
Bool ProtocolIsSubclass(ProtocolClass sub, ProtocolClass super)
|
|
{
|
|
ProtocolClass root = CLASS(ProtocolClass);
|
|
|
|
AVERT(ProtocolClass, sub);
|
|
AVERT(ProtocolClass, super);
|
|
|
|
while (sub != super) {
|
|
AVERT(ProtocolClass, sub);
|
|
if (sub == root)
|
|
return FALSE;
|
|
sub = sub->superclass;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* The class definition for the root of the hierarchy */
|
|
|
|
DEFINE_CLASS(ProtocolClass, theClass)
|
|
{
|
|
theClass->sig = ProtocolClassSig;
|
|
theClass->superclass = theClass;
|
|
AVERT(ProtocolClass, theClass);
|
|
}
|
|
|
|
|
|
/* C. COPYRIGHT AND LICENSE
|
|
*
|
|
* Copyright (C) 2001-2016 Ravenbrook Limited <http://www.ravenbrook.com/>.
|
|
* All rights reserved. This is an open source license. Contact
|
|
* Ravenbrook for commercial licensing options.
|
|
*
|
|
* 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. Redistributions in any form must be accompanied by information on how
|
|
* to obtain complete source code for this software and any accompanying
|
|
* software that uses this software. The source code must either be
|
|
* included in the distribution or be available for no more than the cost
|
|
* of distribution plus a nominal fee, and must be freely redistributable
|
|
* under reasonable conditions. For an executable file, complete source
|
|
* code means the source code for all modules it contains. It does not
|
|
* include source code for modules or files that typically accompany the
|
|
* major components of the operating system on which the executable file
|
|
* runs.
|
|
*
|
|
* 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, FITNESS FOR A PARTICULAR
|
|
* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT HOLDERS AND 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.
|
|
*/
|