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classinf.c
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/*******************************************************/
/* "C" Language Integrated Production System */
/* */
/* CLIPS Version 6.24 07/01/05 */
/* */
/* CLASS INFO PROGRAMMATIC ACCESS MODULE */
/*******************************************************/
/**************************************************************/
/* Purpose: Class Information Interface Support Routines */
/* */
/* Principal Programmer(s): */
/* Brian L. Dantes */
/* */
/* Contributing Programmer(s): */
/* */
/* Revision History: */
/* 6.23: Correction for FalseSymbol/TrueSymbol. DR0859 */
/* */
/* Changed name of variable exp to theExp */
/* because of Unix compiler warnings of shadowed */
/* definitions. */
/* */
/* 6.24: Added allowed-classes slot facet. */
/* */
/* Converted INSTANCE_PATTERN_MATCHING to */
/* DEFRULE_CONSTRUCT. */
/* */
/* Renamed BOOLEAN macro type to intBool. */
/* */
/**************************************************************/
/* =========================================
*****************************************
EXTERNAL DEFINITIONS
=========================================
***************************************** */
#include "setup.h"
#if OBJECT_SYSTEM
#ifndef _STDIO_INCLUDED_
#define _STDIO_INCLUDED_
#include <stdio.h>
#endif
#include <string.h>
#include "argacces.h"
#include "classcom.h"
#include "classexm.h"
#include "classfun.h"
#include "classini.h"
#include "envrnmnt.h"
#include "memalloc.h"
#include "insfun.h"
#include "msgcom.h"
#include "msgfun.h"
#include "multifld.h"
#include "prntutil.h"
#define _CLASSINF_SOURCE_
#include "classinf.h"
/* =========================================
*****************************************
INTERNALLY VISIBLE FUNCTION HEADERS
=========================================
***************************************** */
static void SlotInfoSupportFunction(void *,DATA_OBJECT *,char *,void (*)(void *,void *,char *,DATA_OBJECT *));
static unsigned CountSubclasses(DEFCLASS *,int,int);
static unsigned StoreSubclasses(void *,unsigned,DEFCLASS *,int,int,short);
static SLOT_DESC *SlotInfoSlot(void *,DATA_OBJECT *,DEFCLASS *,char *,char *);
/*********************************************************************
NAME : ClassAbstractPCommand
DESCRIPTION : Determines if direct instances of a class can be made
INPUTS : None
RETURNS : TRUE (1) if class is abstract, FALSE (0) if concrete
SIDE EFFECTS : None
NOTES : Syntax: (class-abstractp <class>)
*********************************************************************/
globle int ClassAbstractPCommand(
void *theEnv)
{
DATA_OBJECT tmp;
DEFCLASS *cls;
if (EnvArgTypeCheck(theEnv,"class-abstractp",1,SYMBOL,&tmp) == FALSE)
return(FALSE);
cls = LookupDefclassByMdlOrScope(theEnv,DOToString(tmp));
if (cls == NULL)
{
ClassExistError(theEnv,"class-abstractp",ValueToString(tmp.value));
return(FALSE);
}
return(EnvClassAbstractP(theEnv,(void *) cls));
}
#if DEFRULE_CONSTRUCT
/*****************************************************************
NAME : ClassReactivePCommand
DESCRIPTION : Determines if instances of a class can match rule
patterns
INPUTS : None
RETURNS : TRUE (1) if class is reactive, FALSE (0)
if non-reactive
SIDE EFFECTS : None
NOTES : Syntax: (class-reactivep <class>)
*****************************************************************/
globle int ClassReactivePCommand(
void *theEnv)
{
DATA_OBJECT tmp;
DEFCLASS *cls;
if (EnvArgTypeCheck(theEnv,"class-reactivep",1,SYMBOL,&tmp) == FALSE)
return(FALSE);
cls = LookupDefclassByMdlOrScope(theEnv,DOToString(tmp));
if (cls == NULL)
{
ClassExistError(theEnv,"class-reactivep",ValueToString(tmp.value));
return(FALSE);
}
return(EnvClassReactiveP(theEnv,(void *) cls));
}
#endif
/***********************************************************
NAME : ClassInfoFnxArgs
DESCRIPTION : Examines arguments for:
class-slots, get-defmessage-handler-list,
class-superclasses and class-subclasses
INPUTS : 1) Name of function
2) A buffer to hold a flag indicating if
the inherit keyword was specified
RETURNS : Pointer to the class on success,
NULL on errors
SIDE EFFECTS : inhp flag set
error flag set
NOTES : None
***********************************************************/
globle void *ClassInfoFnxArgs(
void *theEnv,
char *fnx,
int *inhp)
{
void *clsptr;
DATA_OBJECT tmp;
*inhp = 0;
if (EnvRtnArgCount(theEnv) == 0)
{
ExpectedCountError(theEnv,fnx,AT_LEAST,1);
SetEvaluationError(theEnv,TRUE);
return(NULL);
}
if (EnvArgTypeCheck(theEnv,fnx,1,SYMBOL,&tmp) == FALSE)
return(NULL);
clsptr = (void *) LookupDefclassByMdlOrScope(theEnv,DOToString(tmp));
if (clsptr == NULL)
{
ClassExistError(theEnv,fnx,ValueToString(tmp.value));
return(NULL);
}
if (EnvRtnArgCount(theEnv) == 2)
{
if (EnvArgTypeCheck(theEnv,fnx,2,SYMBOL,&tmp) == FALSE)
return(NULL);
if (strcmp(ValueToString(tmp.value),"inherit") == 0)
*inhp = 1;
else
{
SyntaxErrorMessage(theEnv,fnx);
SetEvaluationError(theEnv,TRUE);
return(NULL);
}
}
return(clsptr);
}
/********************************************************************
NAME : ClassSlotsCommand
DESCRIPTION : Groups slot info for a class into a multifield value
for dynamic perusal
INPUTS : Data object buffer to hold the slots of the class
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the names of
the slots of the class
NOTES : Syntax: (class-slots <class> [inherit])
********************************************************************/
globle void ClassSlotsCommand(
void *theEnv,
DATA_OBJECT *result)
{
int inhp;
void *clsptr;
clsptr = ClassInfoFnxArgs(theEnv,"class-slots",&inhp);
if (clsptr == NULL)
{
EnvSetMultifieldErrorValue(theEnv,result);
return;
}
EnvClassSlots(theEnv,clsptr,result,inhp);
}
/************************************************************************
NAME : ClassSuperclassesCommand
DESCRIPTION : Groups superclasses for a class into a multifield value
for dynamic perusal
INPUTS : Data object buffer to hold the superclasses of the class
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the names of
the superclasses of the class
NOTES : Syntax: (class-superclasses <class> [inherit])
************************************************************************/
globle void ClassSuperclassesCommand(
void *theEnv,
DATA_OBJECT *result)
{
int inhp;
void *clsptr;
clsptr = ClassInfoFnxArgs(theEnv,"class-superclasses",&inhp);
if (clsptr == NULL)
{
EnvSetMultifieldErrorValue(theEnv,result);
return;
}
EnvClassSuperclasses(theEnv,clsptr,result,inhp);
}
/************************************************************************
NAME : ClassSubclassesCommand
DESCRIPTION : Groups subclasses for a class into a multifield value
for dynamic perusal
INPUTS : Data object buffer to hold the subclasses of the class
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the names of
the subclasses of the class
NOTES : Syntax: (class-subclasses <class> [inherit])
************************************************************************/
globle void ClassSubclassesCommand(
void *theEnv,
DATA_OBJECT *result)
{
int inhp;
void *clsptr;
clsptr = ClassInfoFnxArgs(theEnv,"class-subclasses",&inhp);
if (clsptr == NULL)
{
EnvSetMultifieldErrorValue(theEnv,result);
return;
}
EnvClassSubclasses(theEnv,clsptr,result,inhp);
}
/***********************************************************************
NAME : GetDefmessageHandlersListCmd
DESCRIPTION : Groups message-handlers for a class into a multifield
value for dynamic perusal
INPUTS : Data object buffer to hold the handlers of the class
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the names of
the message-handlers of the class
NOTES : Syntax: (get-defmessage-handler-list <class> [inherit])
***********************************************************************/
globle void GetDefmessageHandlersListCmd(
void *theEnv,
DATA_OBJECT *result)
{
int inhp;
void *clsptr;
if (EnvRtnArgCount(theEnv) == 0)
EnvGetDefmessageHandlerList(theEnv,NULL,result,0);
else
{
clsptr = ClassInfoFnxArgs(theEnv,"get-defmessage-handler-list",&inhp);
if (clsptr == NULL)
{
EnvSetMultifieldErrorValue(theEnv,result);
return;
}
EnvGetDefmessageHandlerList(theEnv,clsptr,result,inhp);
}
}
/*********************************
Slot Information Access Functions
*********************************/
globle void SlotFacetsCommand(
void *theEnv,
DATA_OBJECT *result)
{
SlotInfoSupportFunction(theEnv,result,"slot-facets",EnvSlotFacets);
}
globle void SlotSourcesCommand(
void *theEnv,
DATA_OBJECT *result)
{
SlotInfoSupportFunction(theEnv,result,"slot-sources",EnvSlotSources);
}
globle void SlotTypesCommand(
void *theEnv,
DATA_OBJECT *result)
{
SlotInfoSupportFunction(theEnv,result,"slot-types",EnvSlotTypes);
}
globle void SlotAllowedValuesCommand(
void *theEnv,
DATA_OBJECT *result)
{
SlotInfoSupportFunction(theEnv,result,"slot-allowed-values",EnvSlotAllowedValues);
}
globle void SlotAllowedClassesCommand(
void *theEnv,
DATA_OBJECT *result)
{
SlotInfoSupportFunction(theEnv,result,"slot-allowed-classes",EnvSlotAllowedClasses);
}
globle void SlotRangeCommand(
void *theEnv,
DATA_OBJECT *result)
{
SlotInfoSupportFunction(theEnv,result,"slot-range",EnvSlotRange);
}
globle void SlotCardinalityCommand(
void *theEnv,
DATA_OBJECT *result)
{
SlotInfoSupportFunction(theEnv,result,"slot-cardinality",EnvSlotCardinality);
}
/********************************************************************
NAME : EnvClassAbstractP
DESCRIPTION : Determines if a class is abstract or not
INPUTS : Generic pointer to class
RETURNS : 1 if class is abstract, 0 otherwise
SIDE EFFECTS : None
NOTES : None
********************************************************************/
#if WIN_BTC
#pragma argsused
#endif
globle intBool EnvClassAbstractP(
void *theEnv,
void *clsptr)
{
#if MAC_MCW || WIN_MCW || MAC_XCD
#pragma unused(theEnv)
#endif
return(((DEFCLASS *) clsptr)->abstract);
}
#if DEFRULE_CONSTRUCT
/********************************************************************
NAME : EnvClassReactiveP
DESCRIPTION : Determines if a class is reactive or not
INPUTS : Generic pointer to class
RETURNS : 1 if class is reactive, 0 otherwise
SIDE EFFECTS : None
NOTES : None
********************************************************************/
#if WIN_BTC
#pragma argsused
#endif
globle intBool EnvClassReactiveP(
void *theEnv,
void *clsptr)
{
#if MAC_MCW || WIN_MCW || MAC_XCD
#pragma unused(theEnv)
#endif
return(((DEFCLASS *) clsptr)->reactive);
}
#endif
/********************************************************************
NAME : EnvClassSlots
DESCRIPTION : Groups slot info for a class into a multifield value
for dynamic perusal
INPUTS : 1) Generic pointer to class
2) Data object buffer to hold the slots of the class
3) Include (1) or exclude (0) inherited slots
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the names of
the slots of the class
NOTES : None
********************************************************************/
globle void EnvClassSlots(
void *theEnv,
void *clsptr,
DATA_OBJECT *result,
int inhp)
{
long size;
register DEFCLASS *cls;
long i;
cls = (DEFCLASS *) clsptr;
size = inhp ? cls->instanceSlotCount : cls->slotCount;
result->type = MULTIFIELD;
SetpDOBegin(result,1);
SetpDOEnd(result,size);
result->value = (void *) EnvCreateMultifield(theEnv,size);
if (size == 0)
return;
if (inhp)
{
for (i = 0 ; i < cls->instanceSlotCount ; i++)
{
SetMFType(result->value,i+1,SYMBOL);
SetMFValue(result->value,i+1,cls->instanceTemplate[i]->slotName->name);
}
}
else
{
for (i = 0 ; i < cls->slotCount ; i++)
{
SetMFType(result->value,i+1,SYMBOL);
SetMFValue(result->value,i+1,cls->slots[i].slotName->name);
}
}
}
/************************************************************************
NAME : EnvGetDefmessageHandlerList
DESCRIPTION : Groups handler info for a class into a multifield value
for dynamic perusal
INPUTS : 1) Generic pointer to class (NULL to get handlers for
all classes)
2) Data object buffer to hold the handlers of the class
3) Include (1) or exclude (0) inherited handlers
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the names and types of
the message-handlers of the class
NOTES : None
************************************************************************/
globle void EnvGetDefmessageHandlerList(
void *theEnv,
void *clsptr,
DATA_OBJECT *result,
int inhp)
{
DEFCLASS *cls,*svcls,*svnxt,*supcls;
long j;
register int classi,classiLimit;
unsigned long i, sublen, len;
if (clsptr == NULL)
{
inhp = 0;
cls = (DEFCLASS *) EnvGetNextDefclass(theEnv,NULL);
svnxt = (DEFCLASS *) EnvGetNextDefclass(theEnv,(void *) cls);
}
else
{
cls = (DEFCLASS *) clsptr;
svnxt = (DEFCLASS *) EnvGetNextDefclass(theEnv,(void *) cls);
SetNextDefclass((void *) cls,NULL);
}
for (svcls = cls , i = 0 ;
cls != NULL ;
cls = (DEFCLASS *) EnvGetNextDefclass(theEnv,(void *) cls))
{
classiLimit = inhp ? cls->allSuperclasses.classCount : 1;
for (classi = 0 ; classi < classiLimit ; classi++)
i += cls->allSuperclasses.classArray[classi]->handlerCount;
}
len = i * 3;
result->type = MULTIFIELD;
SetpDOBegin(result,1);
SetpDOEnd(result,len);
result->value = (void *) EnvCreateMultifield(theEnv,len);
for (cls = svcls , sublen = 0 ;
cls != NULL ;
cls = (DEFCLASS *) EnvGetNextDefclass(theEnv,(void *) cls))
{
classiLimit = inhp ? cls->allSuperclasses.classCount : 1;
for (classi = 0 ; classi < classiLimit ; classi++)
{
supcls = cls->allSuperclasses.classArray[classi];
if (inhp == 0)
i = sublen + 1;
else
i = len - (supcls->handlerCount * 3) - sublen + 1;
for (j = 0 ; j < supcls->handlerCount ; j++)
{
SetMFType(result->value,i,SYMBOL);
SetMFValue(result->value,i++,GetDefclassNamePointer((void *) supcls));
SetMFType(result->value,i,SYMBOL);
SetMFValue(result->value,i++,supcls->handlers[j].name);
SetMFType(result->value,i,SYMBOL);
SetMFValue(result->value,i++,EnvAddSymbol(theEnv,MessageHandlerData(theEnv)->hndquals[supcls->handlers[j].type]));
}
sublen += supcls->handlerCount * 3;
}
}
if (svcls != NULL)
SetNextDefclass((void *) svcls,(void *) svnxt);
}
/***************************************************************************
NAME : EnvClassSuperclasses
DESCRIPTION : Groups the names of superclasses into a multifield
value for dynamic perusal
INPUTS : 1) Generic pointer to class
2) Data object buffer to hold the superclasses of the class
3) Include (1) or exclude (0) indirect superclasses
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the names of
the superclasses of the class
NOTES : None
***************************************************************************/
globle void EnvClassSuperclasses(
void *theEnv,
void *clsptr,
DATA_OBJECT *result,
int inhp)
{
PACKED_CLASS_LINKS *plinks;
unsigned offset;
long i,j;
if (inhp)
{
plinks = &((DEFCLASS *) clsptr)->allSuperclasses;
offset = 1;
}
else
{
plinks = &((DEFCLASS *) clsptr)->directSuperclasses;
offset = 0;
}
result->type = MULTIFIELD;
result->begin = 0;
SetpDOEnd(result,plinks->classCount - offset);
result->value = (void *) EnvCreateMultifield(theEnv,result->end + 1U);
if (result->end == -1)
return;
for (i = offset , j = 1 ; i < plinks->classCount ; i++ , j++)
{
SetMFType(result->value,j,SYMBOL);
SetMFValue(result->value,j,GetDefclassNamePointer((void *) plinks->classArray[i]));
}
}
/**************************************************************************
NAME : EnvClassSubclasses
DESCRIPTION : Groups the names of subclasses for a class into a
multifield value for dynamic perusal
INPUTS : 1) Generic pointer to class
2) Data object buffer to hold the sublclasses of the class
3) Include (1) or exclude (0) indirect subclasses
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the names
the subclasses of the class
NOTES : None
**************************************************************************/
globle void EnvClassSubclasses(
void *theEnv,
void *clsptr,
DATA_OBJECT *result,
int inhp)
{
register unsigned i;
register int id;
if ((id = GetTraversalID(theEnv)) == -1)
return;
i = CountSubclasses((DEFCLASS *) clsptr,inhp,id);
ReleaseTraversalID(theEnv);
result->type = MULTIFIELD;
result->begin = 0;
SetpDOEnd(result,i);
result->value = (void *) EnvCreateMultifield(theEnv,i);
if (i == 0)
return;
if ((id = GetTraversalID(theEnv)) == -1)
return;
StoreSubclasses(result->value,1,(DEFCLASS *) clsptr,inhp,id,TRUE);
ReleaseTraversalID(theEnv);
}
/**************************************************************************
NAME : ClassSubclassAddresses
DESCRIPTION : Groups the class addresses of subclasses for a class into a
multifield value for dynamic perusal
INPUTS : 1) Generic pointer to class
2) Data object buffer to hold the sublclasses of the class
3) Include (1) or exclude (0) indirect subclasses
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the subclass
addresss of the class
NOTES : None
**************************************************************************/
globle void ClassSubclassAddresses(
void *theEnv,
void *clsptr,
DATA_OBJECT *result,
int inhp)
{
register unsigned i;
register int id;
if ((id = GetTraversalID(theEnv)) == -1)
return;
i = CountSubclasses((DEFCLASS *) clsptr,inhp,id);
ReleaseTraversalID(theEnv);
result->type = MULTIFIELD;
result->begin = 0;
SetpDOEnd(result,i);
result->value = (void *) EnvCreateMultifield(theEnv,i);
if (i == 0)
return;
if ((id = GetTraversalID(theEnv)) == -1)
return;
StoreSubclasses(result->value,1,(DEFCLASS *) clsptr,inhp,id,FALSE);
ReleaseTraversalID(theEnv);
}
/**************************************************************************
NAME : Slot... Slot information access functions
DESCRIPTION : Groups the sources/facets/types/allowed-values/range or
cardinality of a slot for a class into a multifield
value for dynamic perusal
INPUTS : 1) Generic pointer to class
2) Name of the slot
3) Data object buffer to hold the attributes of the class
RETURNS : Nothing useful
SIDE EFFECTS : Creates a multifield storing the attributes for the slot
of the class
NOTES : None
**************************************************************************/
globle void EnvSlotFacets(
void *theEnv,
void *clsptr,
char *sname,
DATA_OBJECT *result)
{
register int i;
register SLOT_DESC *sp;
if ((sp = SlotInfoSlot(theEnv,result,(DEFCLASS *) clsptr,sname,"slot-facets")) == NULL)
return;
#if DEFRULE_CONSTRUCT
result->end = 9;
result->value = (void *) EnvCreateMultifield(theEnv,10L);
for (i = 1 ; i <= 10 ; i++)
SetMFType(result->value,i,SYMBOL);
#else
result->end = 8;
result->value = (void *) EnvCreateMultifield(theEnv,9L);
for (i = 1 ; i <= 9 ; i++)
SetMFType(result->value,i,SYMBOL);
#endif
if (sp->multiple)
SetMFValue(result->value,1,EnvAddSymbol(theEnv,"MLT"));
else
SetMFValue(result->value,1,EnvAddSymbol(theEnv,"SGL"));
if (sp->noDefault)
SetMFValue(result->value,2,EnvAddSymbol(theEnv,"NIL"));
else
{
if (sp->dynamicDefault)
SetMFValue(result->value,2,EnvAddSymbol(theEnv,"DYN"));
else
SetMFValue(result->value,2,EnvAddSymbol(theEnv,"STC"));
}
if (sp->noInherit)
SetMFValue(result->value,3,EnvAddSymbol(theEnv,"NIL"));
else
SetMFValue(result->value,3,EnvAddSymbol(theEnv,"INH"));
if (sp->initializeOnly)
SetMFValue(result->value,4,EnvAddSymbol(theEnv,"INT"));
else if (sp->noWrite)
SetMFValue(result->value,4,EnvAddSymbol(theEnv,"R"));
else
SetMFValue(result->value,4,EnvAddSymbol(theEnv,"RW"));
if (sp->shared)
SetMFValue(result->value,5,EnvAddSymbol(theEnv,"SHR"));
else
SetMFValue(result->value,5,EnvAddSymbol(theEnv,"LCL"));
#if DEFRULE_CONSTRUCT
if (sp->reactive)
SetMFValue(result->value,6,EnvAddSymbol(theEnv,"RCT"));
else
SetMFValue(result->value,6,EnvAddSymbol(theEnv,"NIL"));
if (sp->composite)
SetMFValue(result->value,7,EnvAddSymbol(theEnv,"CMP"));
else
SetMFValue(result->value,7,EnvAddSymbol(theEnv,"EXC"));
if (sp->publicVisibility)
SetMFValue(result->value,8,EnvAddSymbol(theEnv,"PUB"));
else
SetMFValue(result->value,8,EnvAddSymbol(theEnv,"PRV"));
SetMFValue(result->value,9,EnvAddSymbol(theEnv,GetCreateAccessorString((void *) sp)));
SetMFValue(result->value,10,sp->noWrite ? EnvAddSymbol(theEnv,"NIL") : (void *) sp->overrideMessage);
#else
if (sp->composite)
SetMFValue(result->value,6,EnvAddSymbol(theEnv,"CMP"));
else
SetMFValue(result->value,6,EnvAddSymbol(theEnv,"EXC"));
if (sp->publicVisibility)
SetMFValue(result->value,7,EnvAddSymbol(theEnv,"PUB"));
else
SetMFValue(result->value,7,EnvAddSymbol(theEnv,"PRV"));
SetMFValue(result->value,8,EnvAddSymbol(theEnv,GetCreateAccessorString((void *) sp)));
SetMFValue(result->value,9,sp->noWrite ? EnvAddSymbol(theEnv,"NIL") : (void *) sp->overrideMessage);
#endif
}
globle void EnvSlotSources(
void *theEnv,
void *clsptr,
char *sname,
DATA_OBJECT *result)
{
register unsigned i;
register int classi;
register SLOT_DESC *sp,*csp;
CLASS_LINK *ctop,*ctmp;
DEFCLASS *cls;
if ((sp = SlotInfoSlot(theEnv,result,(DEFCLASS *) clsptr,sname,"slot-sources")) == NULL)
return;
i = 1;
ctop = get_struct(theEnv,classLink);
ctop->cls = sp->cls;
ctop->nxt = NULL;
if (sp->composite)
{
for (classi = 1 ; classi < sp->cls->allSuperclasses.classCount ; classi++)
{
cls = sp->cls->allSuperclasses.classArray[classi];
csp = FindClassSlot(cls,sp->slotName->name);
if ((csp != NULL) ? (csp->noInherit == 0) : FALSE)
{
ctmp = get_struct(theEnv,classLink);
ctmp->cls = cls;
ctmp->nxt = ctop;
ctop = ctmp;
i++;
if (csp->composite == 0)
break;
}
}
}
SetpDOEnd(result,i);
result->value = (void *) EnvCreateMultifield(theEnv,i);
for (ctmp = ctop , i = 1 ; ctmp != NULL ; ctmp = ctmp->nxt , i++)
{
SetMFType(result->value,i,SYMBOL);
SetMFValue(result->value,i,GetDefclassNamePointer((void *) ctmp->cls));
}
DeleteClassLinks(theEnv,ctop);
}
globle void EnvSlotTypes(
void *theEnv,
void *clsptr,
char *sname,
DATA_OBJECT *result)
{
register unsigned i,j;
register SLOT_DESC *sp;
char typemap[2];
unsigned msize;
if ((sp = SlotInfoSlot(theEnv,result,(DEFCLASS *) clsptr,sname,"slot-types")) == NULL)
return;
if ((sp->constraint != NULL) ? sp->constraint->anyAllowed : TRUE)
{
typemap[0] = typemap[1] = (char) 0xFF;
ClearBitMap(typemap,MULTIFIELD);
msize = 8;
}
else
{
typemap[0] = typemap[1] = (char) 0x00;
msize = 0;
if (sp->constraint->symbolsAllowed)
{
msize++;
SetBitMap(typemap,SYMBOL);
}
if (sp->constraint->stringsAllowed)
{
msize++;
SetBitMap(typemap,STRING);
}
if (sp->constraint->floatsAllowed)
{
msize++;
SetBitMap(typemap,FLOAT);
}
if (sp->constraint->integersAllowed)
{
msize++;
SetBitMap(typemap,INTEGER);
}
if (sp->constraint->instanceNamesAllowed)
{
msize++;
SetBitMap(typemap,INSTANCE_NAME);
}
if (sp->constraint->instanceAddressesAllowed)
{
msize++;
SetBitMap(typemap,INSTANCE_ADDRESS);
}
if (sp->constraint->externalAddressesAllowed)
{
msize++;
SetBitMap(typemap,EXTERNAL_ADDRESS);
}
if (sp->constraint->factAddressesAllowed)
{
msize++;
SetBitMap(typemap,FACT_ADDRESS);
}
}
SetpDOEnd(result,msize);
result->value = EnvCreateMultifield(theEnv,msize);
i = 1;
j = 0;
while (i <= msize)
{
if (TestBitMap(typemap,j))
{
SetMFType(result->value,i,SYMBOL);
SetMFValue(result->value,i,
(void *) GetDefclassNamePointer((void *)
DefclassData(theEnv)->PrimitiveClassMap[j]));
i++;
}
j++;
}
}
globle void EnvSlotAllowedValues(
void *theEnv,
void *clsptr,
char *sname,
DATA_OBJECT *result)
{
register int i;
register SLOT_DESC *sp;
register EXPRESSION *theExp;
if ((sp = SlotInfoSlot(theEnv,result,(DEFCLASS *) clsptr,sname,"slot-allowed-values")) == NULL)
return;
if ((sp->constraint != NULL) ? (sp->constraint->restrictionList == NULL) : TRUE)
{
result->type = SYMBOL;
result->value = EnvFalseSymbol(theEnv);
return;
}
result->end = ExpressionSize(sp->constraint->restrictionList) - 1;
result->value = EnvCreateMultifield(theEnv,(unsigned long) (result->end + 1));
i = 1;
theExp = sp->constraint->restrictionList;
while (theExp != NULL)
{
SetMFType(result->value,i,theExp->type);
SetMFValue(result->value,i,theExp->value);
theExp = theExp->nextArg;
i++;
}
}
globle void EnvSlotAllowedClasses(
void *theEnv,
void *clsptr,
char *sname,
DATA_OBJECT *result)
{
register int i;
register SLOT_DESC *sp;
register EXPRESSION *theExp;
if ((sp = SlotInfoSlot(theEnv,result,(DEFCLASS *) clsptr,sname,"slot-allowed-classes")) == NULL)
return;
if ((sp->constraint != NULL) ? (sp->constraint->classList == NULL) : TRUE)
{
result->type = SYMBOL;
result->value = EnvFalseSymbol(theEnv);
return;
}
result->end = ExpressionSize(sp->constraint->classList) - 1;
result->value = EnvCreateMultifield(theEnv,(unsigned long) (result->end + 1));
i = 1;
theExp = sp->constraint->classList;
while (theExp != NULL)
{
SetMFType(result->value,i,theExp->type);
SetMFValue(result->value,i,theExp->value);
theExp = theExp->nextArg;
i++;
}
}
globle void EnvSlotRange(
void *theEnv,
void *clsptr,
char *sname,
DATA_OBJECT *result)
{
register SLOT_DESC *sp;
if ((sp = SlotInfoSlot(theEnv,result,(DEFCLASS *) clsptr,sname,"slot-range")) == NULL)
return;
if ((sp->constraint == NULL) ? FALSE :
(sp->constraint->anyAllowed || sp->constraint->floatsAllowed ||
sp->constraint->integersAllowed))
{
result->end = 1;
result->value = EnvCreateMultifield(theEnv,2L);
SetMFType(result->value,1,sp->constraint->minValue->type);
SetMFValue(result->value,1,sp->constraint->minValue->value);
SetMFType(result->value,2,sp->constraint->maxValue->type);
SetMFValue(result->value,2,sp->constraint->maxValue->value);
}
else
{
result->type = SYMBOL;
result->value = EnvFalseSymbol(theEnv);
return;
}
}
globle void EnvSlotCardinality(
void *theEnv,
void *clsptr,
char *sname,
DATA_OBJECT *result)
{
register SLOT_DESC *sp;
if ((sp = SlotInfoSlot(theEnv,result,(DEFCLASS *) clsptr,sname,"slot-cardinality")) == NULL)
return;
if (sp->multiple == 0)
{
EnvSetMultifieldErrorValue(theEnv,result);
return;
}
result->end = 1;
result->value = EnvCreateMultifield(theEnv,2L);
if (sp->constraint != NULL)
{
SetMFType(result->value,1,sp->constraint->minFields->type);
SetMFValue(result->value,1,sp->constraint->minFields->value);
SetMFType(result->value,2,sp->constraint->maxFields->type);
SetMFValue(result->value,2,sp->constraint->maxFields->value);
}
else
{
SetMFType(result->value,1,INTEGER);
SetMFValue(result->value,1,SymbolData(theEnv)->Zero);
SetMFType(result->value,2,SYMBOL);
SetMFValue(result->value,2,SymbolData(theEnv)->PositiveInfinity);
}
}
/* =========================================
*****************************************
INTERNALLY VISIBLE FUNCTIONS
=========================================
***************************************** */
/*****************************************************
NAME : SlotInfoSupportFunction
DESCRIPTION : Support routine for slot-sources,
slot-facets, et. al.