globle BOOLEAN CheckRHSSlotTypes(
struct expr *rhsSlots,
struct templateSlot *slotPtr,
char *thePlace)
{
int rv;
char *theName;
if (GetStaticConstraintChecking() == FALSE) return(TRUE);
rv = ConstraintCheckExpressionChain(rhsSlots,slotPtr->constraints);
if (rv != NO_VIOLATION)
{
if (rv != CARDINALITY_VIOLATION) theName = "A literal slot value";
else theName = "Literal slot values";
ConstraintViolationErrorMessage(theName,thePlace,TRUE,0,
slotPtr->slotName,0,rv,slotPtr->constraints,TRUE);
return(0);
}
return(1);
}
bool CheckRHSSlotTypes(
void *theEnv,
struct expr *rhsSlots,
struct templateSlot *slotPtr,
const char *thePlace)
{
int rv;
const char *theName;
rv = ConstraintCheckExpressionChain(theEnv,rhsSlots,slotPtr->constraints);
if (rv != NO_VIOLATION)
{
if (rv != CARDINALITY_VIOLATION) theName = "A literal slot value";
else theName = "Literal slot values";
ConstraintViolationErrorMessage(theEnv,theName,thePlace,true,0,
slotPtr->slotName,0,rv,slotPtr->constraints,true);
return(0);
}
return(1);
}
globle void CheckTemplateFact(
struct fact *theFact)
{
struct field *sublist;
int i;
struct deftemplate *theDeftemplate;
struct templateSlot *slotPtr;
DATA_OBJECT theData;
char thePlace[20];
int rv;
if (! GetDynamicConstraintChecking()) return;
sublist = theFact->theProposition.theFields;
/*========================================================*/
/* If the deftemplate corresponding to the first field of */
/* of the fact cannot be found, then the fact cannot be */
/* checked against the deftemplate format. */
/*========================================================*/
theDeftemplate = theFact->whichDeftemplate;
if (theDeftemplate == NULL) return;
if (theDeftemplate->implied) return;
/*=============================================*/
/* Check each of the slots of the deftemplate. */
/*=============================================*/
i = 0;
for (slotPtr = theDeftemplate->slotList;
slotPtr != NULL;
slotPtr = slotPtr->next)
{
/*================================================*/
/* Store the slot value in the appropriate format */
/* for a call to the constraint checking routine. */
/*================================================*/
if (slotPtr->multislot == FALSE)
{
theData.type = sublist[i].type;
theData.value = sublist[i].value;
i++;
}
else
{
theData.type = MULTIFIELD;
theData.value = (void *) sublist[i].value;
theData.begin = 0;
theData.end = ((struct multifield *) sublist[i].value)->multifieldLength-1;
i++;
}
/*=============================================*/
/* Call the constraint checking routine to see */
/* if a constraint violation occurred. */
/*=============================================*/
rv = ConstraintCheckDataObject(&theData,slotPtr->constraints);
if (rv != NO_VIOLATION)
{
sprintf(thePlace,"fact f-%-5ld ",theFact->factIndex);
PrintErrorID("CSTRNCHK",1,TRUE);
PrintRouter(WERROR,"Slot value ");
PrintDataObject(WERROR,&theData);
PrintRouter(WERROR," ");
ConstraintViolationErrorMessage(NULL,thePlace,FALSE,0,slotPtr->slotName,
0,rv,slotPtr->constraints,TRUE);
SetHaltExecution(TRUE);
return;
}
}
return;
}
globle BOOLEAN ProcessConnectedConstraints(
struct lhsParseNode *theNode,
struct lhsParseNode *multifieldHeader,
struct lhsParseNode *patternHead)
{
struct constraintRecord *orConstraints = NULL, *andConstraints;
struct constraintRecord *tmpConstraints, *rvConstraints;
struct lhsParseNode *orNode, *andNode;
struct expr *tmpExpr;
/*============================================*/
/* Loop through all of the or (|) constraints */
/* found in the connected constraint. */
/*============================================*/
for (orNode = theNode->bottom; orNode != NULL; orNode = orNode->bottom)
{
/*=================================================*/
/* Intersect all of the &'ed constraints together. */
/*=================================================*/
andConstraints = NULL;
for (andNode = orNode; andNode != NULL; andNode = andNode->right)
{
if (! andNode->negated)
{
if (andNode->type == RETURN_VALUE_CONSTRAINT)
{
if (andNode->expression->type == FCALL)
{
rvConstraints = FunctionCallToConstraintRecord(andNode->expression->value);
tmpConstraints = andConstraints;
andConstraints = IntersectConstraints(andConstraints,rvConstraints);
RemoveConstraint(tmpConstraints);
RemoveConstraint(rvConstraints);
}
}
else if (ConstantType(andNode->type))
{
tmpExpr = GenConstant(andNode->type,andNode->value);
rvConstraints = ExpressionToConstraintRecord(tmpExpr);
tmpConstraints = andConstraints;
andConstraints = IntersectConstraints(andConstraints,rvConstraints);
RemoveConstraint(tmpConstraints);
RemoveConstraint(rvConstraints);
ReturnExpression(tmpExpr);
}
else if (andNode->constraints != NULL)
{
tmpConstraints = andConstraints;
andConstraints = IntersectConstraints(andConstraints,andNode->constraints);
RemoveConstraint(tmpConstraints);
}
}
}
/*===========================================================*/
/* Intersect the &'ed constraints with the slot constraints. */
/*===========================================================*/
tmpConstraints = andConstraints;
andConstraints = IntersectConstraints(andConstraints,theNode->constraints);
RemoveConstraint(tmpConstraints);
/*===============================================================*/
/* Remove any negated constants from the list of allowed values. */
/*===============================================================*/
for (andNode = orNode; andNode != NULL; andNode = andNode->right)
{
if ((andNode->negated) && ConstantType(andNode->type))
{ RemoveConstantFromConstraint(andNode->type,andNode->value,andConstraints); }
}
/*=======================================================*/
/* Union the &'ed constraints with the |'ed constraints. */
/*=======================================================*/
tmpConstraints = orConstraints;
orConstraints = UnionConstraints(orConstraints,andConstraints);
RemoveConstraint(tmpConstraints);
RemoveConstraint(andConstraints);
}
/*===============================================*/
/* Replace the constraints for the slot with the */
/* constraints derived from the connected */
/* constraints (which should be a subset. */
/*===============================================*/
if (orConstraints != NULL)
{
if (theNode->derivedConstraints) RemoveConstraint(theNode->constraints);
theNode->constraints = orConstraints;
theNode->derivedConstraints = TRUE;
}
/*==================================*/
/* Check for constraint violations. */
/*==================================*/
if (CheckForUnmatchableConstraints(theNode,(int) patternHead->whichCE))
{ return(TRUE); }
/*=========================================*/
/* If the constraints are for a multifield */
/* slot, check for cardinality violations. */
/*=========================================*/
if ((multifieldHeader != NULL) && (theNode->right == NULL))
{
if (MultifieldCardinalityViolation(multifieldHeader))
{
ConstraintViolationErrorMessage("The group of restrictions",
NULL,FALSE,
(int) patternHead->whichCE,
multifieldHeader->slot,
multifieldHeader->index,
CARDINALITY_VIOLATION,
multifieldHeader->constraints,TRUE);
return(TRUE);
}
}
/*=======================================*/
/* Return FALSE indicating no constraint */
/* violations were detected. */
/*=======================================*/
return(FALSE);
}
static struct templateSlot *ParseSlot(
void *theEnv,
char *readSource,
struct token *inputToken,
struct templateSlot *slotList)
{
int parsingMultislot;
SYMBOL_HN *slotName;
struct templateSlot *newSlot;
int rv;
/*=====================================================*/
/* Slots must begin with keyword field or multifield. */
/*=====================================================*/
if ((strcmp(ValueToString(inputToken->value),"field") != 0) &&
(strcmp(ValueToString(inputToken->value),"multifield") != 0) &&
(strcmp(ValueToString(inputToken->value),"slot") != 0) &&
(strcmp(ValueToString(inputToken->value),"multislot") != 0))
{
SyntaxErrorMessage(theEnv,"deftemplate");
DeftemplateData(theEnv)->DeftemplateError = TRUE;
return(NULL);
}
/*===============================================*/
/* Determine if multifield slot is being parsed. */
/*===============================================*/
if ((strcmp(ValueToString(inputToken->value),"multifield") == 0) ||
(strcmp(ValueToString(inputToken->value),"multislot") == 0))
{ parsingMultislot = TRUE; }
else
{ parsingMultislot = FALSE; }
/*========================================*/
/* The name of the slot must be a symbol. */
/*========================================*/
SavePPBuffer(theEnv," ");
GetToken(theEnv,readSource,inputToken);
if (inputToken->type != SYMBOL)
{
SyntaxErrorMessage(theEnv,"deftemplate");
DeftemplateData(theEnv)->DeftemplateError = TRUE;
return(NULL);
}
slotName = (SYMBOL_HN *) inputToken->value;
/*================================================*/
/* Determine if the slot has already been parsed. */
/*================================================*/
while (slotList != NULL)
{
if (slotList->slotName == slotName)
{
AlreadyParsedErrorMessage(theEnv,"slot ",ValueToString(slotList->slotName));
DeftemplateData(theEnv)->DeftemplateError = TRUE;
return(NULL);
}
slotList = slotList->next;
}
/*===================================*/
/* Parse the attributes of the slot. */
/*===================================*/
newSlot = DefinedSlots(theEnv,readSource,slotName,parsingMultislot,inputToken);
if (newSlot == NULL)
{
DeftemplateData(theEnv)->DeftemplateError = TRUE;
return(NULL);
}
/*=================================*/
/* Check for slot conflict errors. */
/*=================================*/
if (CheckConstraintParseConflicts(theEnv,newSlot->constraints) == FALSE)
{
ReturnSlots(theEnv,newSlot);
DeftemplateData(theEnv)->DeftemplateError = TRUE;
return(NULL);
}
if ((newSlot->defaultPresent) || (newSlot->defaultDynamic))
{ rv = ConstraintCheckExpressionChain(theEnv,newSlot->defaultList,newSlot->constraints); }
else
{ rv = NO_VIOLATION; }
if ((rv != NO_VIOLATION) && EnvGetStaticConstraintChecking(theEnv))
{
char *temp;
if (newSlot->defaultDynamic) temp = "the default-dynamic attribute";
else temp = "the default attribute";
ConstraintViolationErrorMessage(theEnv,"An expression",temp,FALSE,0,
newSlot->slotName,0,rv,newSlot->constraints,TRUE);
ReturnSlots(theEnv,newSlot);
DeftemplateData(theEnv)->DeftemplateError = TRUE;
return(NULL);
}
/*==================*/
/* Return the slot. */
/*==================*/
return(newSlot);
}
/*********************************************************
NAME : CheckSlotReference
DESCRIPTION : Examines a ?self:<slot-name> reference
If the reference is a single-field or
global variable, checking and evaluation
is delayed until run-time. If the
reference is a symbol, this routine
verifies that the slot is a legal
slot for the reference (i.e., it exists
in the class to which the message-handler
is being attached, it is visible and it
is writable for write reference)
INPUTS : 1) A buffer holding the class
of the handler being parsed
2) The type of the slot reference
3) The value of the slot reference
4) A flag indicating if this is a read
or write access
5) Value expression for write
RETURNS : Class slot on success, NULL on errors
SIDE EFFECTS : Messages printed on errors.
NOTES : For static references, this function
insures that the slot is either
publicly visible or that the handler
is being attached to the same class in
which the private slot is defined.
*********************************************************/
static SLOT_DESC *CheckSlotReference(
void *theEnv,
DEFCLASS *theDefclass,
int theType,
void *theValue,
CLIPS_BOOLEAN writeFlag,
EXPRESSION *writeExpression)
{
int slotIndex;
SLOT_DESC *sd;
int vCode;
if (theType != SYMBOL)
{
PrintErrorID(theEnv,"MSGPSR",7,FALSE);
EnvPrintRouter(theEnv,WERROR,"Illegal value for ?self reference.\n");
return(NULL);
}
slotIndex = FindInstanceTemplateSlot(theEnv,theDefclass,(SYMBOL_HN *) theValue);
if (slotIndex == -1)
{
PrintErrorID(theEnv,"MSGPSR",6,FALSE);
EnvPrintRouter(theEnv,WERROR,"No such slot ");
EnvPrintRouter(theEnv,WERROR,ValueToString(theValue));
EnvPrintRouter(theEnv,WERROR," in class ");
EnvPrintRouter(theEnv,WERROR,EnvGetDefclassName(theEnv,(void *) theDefclass));
EnvPrintRouter(theEnv,WERROR," for ?self reference.\n");
return(NULL);
}
sd = theDefclass->instanceTemplate[slotIndex];
if ((sd->publicVisibility == 0) && (sd->cls != theDefclass))
{
SlotVisibilityViolationError(theEnv,sd,theDefclass);
return(NULL);
}
if (! writeFlag)
return(sd);
/* =================================================
If a slot is initialize-only, the WithinInit flag
still needs to be checked at run-time, for the
handler could be called out of the context of
an init.
================================================= */
if (sd->noWrite && (sd->initializeOnly == 0))
{
SlotAccessViolationError(theEnv,ValueToString(theValue),
FALSE,(void *) theDefclass);
return(NULL);
}
if (EnvGetStaticConstraintChecking(theEnv))
{
vCode = ConstraintCheckExpressionChain(theEnv,writeExpression,sd->constraint);
if (vCode != NO_VIOLATION)
{
PrintErrorID(theEnv,"CSTRNCHK",1,FALSE);
EnvPrintRouter(theEnv,WERROR,"Expression for ");
PrintSlot(theEnv,WERROR,sd,NULL,"direct slot write");
ConstraintViolationErrorMessage(theEnv,NULL,NULL,0,0,NULL,0,
vCode,sd->constraint,FALSE);
return(NULL);
}
}
return(sd);
}
/********************************************************************
NAME : EvaluateSlotDefaultValue
DESCRIPTION : Checks the default value against the slot
constraints and evaluates static default values
INPUTS : 1) The slot descriptor
2) The bitmap marking which facets were specified in
the original slot definition
RETURNS : TRUE if all OK, FALSE otherwise
SIDE EFFECTS : Static default value expressions deleted and
replaced with data object evaluation
NOTES : On errors, slot is marked as dynamix so that
DeleteSlots() will erase the slot expression
********************************************************************/
static intBool EvaluateSlotDefaultValue(
void *theEnv,
EXEC_STATUS,
SLOT_DESC *sd,
char *specbits)
{
DATA_OBJECT temp;
int oldce,olddcc,vCode;
/* ===================================================================
Slot default value expression is marked as dynamic until now so
that DeleteSlots() would erase in the event of an error. The delay
was so that the evaluation of a static default value could be
delayed until all the constraints were parsed.
=================================================================== */
if (TestBitMap(specbits,DEFAULT_DYNAMIC_BIT) == 0)
sd->dynamicDefault = 0;
if (sd->noDefault)
return(TRUE);
if (sd->dynamicDefault == 0)
{
if (TestBitMap(specbits,DEFAULT_BIT))
{
oldce = ExecutingConstruct(theEnv,execStatus);
SetExecutingConstruct(theEnv,execStatus,TRUE);
olddcc = EnvSetDynamicConstraintChecking(theEnv,execStatus,EnvGetStaticConstraintChecking(theEnv,execStatus));
vCode = EvaluateAndStoreInDataObject(theEnv,execStatus,(int) sd->multiple,
(EXPRESSION *) sd->defaultValue,&temp,TRUE);
if (vCode != FALSE)
vCode = ValidSlotValue(theEnv,execStatus,&temp,sd,NULL,"slot default value");
EnvSetDynamicConstraintChecking(theEnv,execStatus,olddcc);
SetExecutingConstruct(theEnv,execStatus,oldce);
if (vCode)
{
ExpressionDeinstall(theEnv,execStatus,(EXPRESSION *) sd->defaultValue);
ReturnPackedExpression(theEnv,execStatus,(EXPRESSION *) sd->defaultValue);
sd->defaultValue = (void *) get_struct(theEnv,execStatus,dataObject);
GenCopyMemory(DATA_OBJECT,1,sd->defaultValue,&temp);
ValueInstall(theEnv,execStatus,(DATA_OBJECT *) sd->defaultValue);
}
else
{
sd->dynamicDefault = 1;
return(FALSE);
}
}
else if (sd->defaultSpecified == 0)
{
sd->defaultValue = (void *) get_struct(theEnv,execStatus,dataObject);
DeriveDefaultFromConstraints(theEnv,execStatus,sd->constraint,
(DATA_OBJECT *) sd->defaultValue,(int) sd->multiple,TRUE);
ValueInstall(theEnv,execStatus,(DATA_OBJECT *) sd->defaultValue);
}
}
else if (EnvGetStaticConstraintChecking(theEnv,execStatus))
{
vCode = ConstraintCheckExpressionChain(theEnv,execStatus,(EXPRESSION *) sd->defaultValue,sd->constraint);
if (vCode != NO_VIOLATION)
{
PrintErrorID(theEnv,execStatus,"CSTRNCHK",1,FALSE);
EnvPrintRouter(theEnv,execStatus,WERROR,"Expression for ");
PrintSlot(theEnv,execStatus,WERROR,sd,NULL,"dynamic default value");
ConstraintViolationErrorMessage(theEnv,execStatus,NULL,NULL,0,0,NULL,0,
vCode,sd->constraint,FALSE);
return(FALSE);
}
}
return(TRUE);
}
void CheckTemplateFact(
Environment *theEnv,
Fact *theFact)
{
CLIPSValue *sublist;
int i;
Deftemplate *theDeftemplate;
struct templateSlot *slotPtr;
UDFValue theData;
char thePlace[20];
ConstraintViolationType rv;
if (! GetDynamicConstraintChecking(theEnv)) return;
sublist = theFact->theProposition.contents;
/*========================================================*/
/* If the deftemplate corresponding to the first field of */
/* of the fact cannot be found, then the fact cannot be */
/* checked against the deftemplate format. */
/*========================================================*/
theDeftemplate = theFact->whichDeftemplate;
if (theDeftemplate == NULL) return;
if (theDeftemplate->implied) return;
/*=============================================*/
/* Check each of the slots of the deftemplate. */
/*=============================================*/
i = 0;
for (slotPtr = theDeftemplate->slotList;
slotPtr != NULL;
slotPtr = slotPtr->next)
{
/*================================================*/
/* Store the slot value in the appropriate format */
/* for a call to the constraint checking routine. */
/*================================================*/
if (slotPtr->multislot == false)
{
theData.value = sublist[i].value;
i++;
}
else
{
theData.value = (void *) sublist[i].value;
theData.begin = 0;
theData.range = sublist[i].multifieldValue->length;
i++;
}
/*=============================================*/
/* Call the constraint checking routine to see */
/* if a constraint violation occurred. */
/*=============================================*/
rv = ConstraintCheckDataObject(theEnv,&theData,slotPtr->constraints);
if (rv != NO_VIOLATION)
{
gensprintf(thePlace,"fact f-%lld",theFact->factIndex);
PrintErrorID(theEnv,"CSTRNCHK",1,true);
WriteString(theEnv,STDERR,"Slot value ");
WriteUDFValue(theEnv,STDERR,&theData);
ConstraintViolationErrorMessage(theEnv,NULL,thePlace,false,0,slotPtr->slotName,
0,rv,slotPtr->constraints,true);
SetHaltExecution(theEnv,true);
return;
}
}
return;
}
/********************************************************************
NAME : EvaluateSlotDefaultValue
DESCRIPTION : Checks the default value against the slot
constraints and evaluates static default values
INPUTS : 1) The slot descriptor
2) The bitmap marking which facets were specified in
the original slot definition
RETURNS : True if all OK, false otherwise
SIDE EFFECTS : Static default value expressions deleted and
replaced with data object evaluation
NOTES : On errors, slot is marked as dynamix so that
DeleteSlots() will erase the slot expression
********************************************************************/
static bool EvaluateSlotDefaultValue(
Environment *theEnv,
SlotDescriptor *sd,
const char *specbits)
{
UDFValue temp;
bool oldce,olddcc, vPass;
ConstraintViolationType vCode;
/* ===================================================================
Slot default value expression is marked as dynamic until now so
that DeleteSlots() would erase in the event of an error. The delay
was so that the evaluation of a static default value could be
delayed until all the constraints were parsed.
=================================================================== */
if (! TestBitMap(specbits,DEFAULT_DYNAMIC_BIT))
sd->dynamicDefault = 0;
if (sd->noDefault)
return true;
if (sd->dynamicDefault == 0)
{
if (TestBitMap(specbits,DEFAULT_BIT))
{
oldce = ExecutingConstruct(theEnv);
SetExecutingConstruct(theEnv,true);
olddcc = SetDynamicConstraintChecking(theEnv,true);
vPass = EvaluateAndStoreInDataObject(theEnv,sd->multiple,
(Expression *) sd->defaultValue,&temp,true);
if (vPass != false)
vPass = (ValidSlotValue(theEnv,&temp,sd,NULL,"the 'default' facet") == PSE_NO_ERROR);
SetDynamicConstraintChecking(theEnv,olddcc);
SetExecutingConstruct(theEnv,oldce);
if (vPass)
{
ExpressionDeinstall(theEnv,(Expression *) sd->defaultValue);
ReturnPackedExpression(theEnv,(Expression *) sd->defaultValue);
sd->defaultValue = get_struct(theEnv,udfValue);
GenCopyMemory(UDFValue,1,sd->defaultValue,&temp);
RetainUDFV(theEnv,(UDFValue *) sd->defaultValue);
}
else
{
sd->dynamicDefault = 1;
return false;
}
}
else if (sd->defaultSpecified == 0)
{
sd->defaultValue = get_struct(theEnv,udfValue);
DeriveDefaultFromConstraints(theEnv,sd->constraint,
(UDFValue *) sd->defaultValue,sd->multiple,true);
RetainUDFV(theEnv,(UDFValue *) sd->defaultValue);
}
}
else
{
vCode = ConstraintCheckExpressionChain(theEnv,(Expression *) sd->defaultValue,sd->constraint);
if (vCode != NO_VIOLATION)
{
PrintErrorID(theEnv,"CSTRNCHK",1,false);
WriteString(theEnv,STDERR,"Expression for ");
PrintSlot(theEnv,STDERR,sd,NULL,"dynamic default value");
ConstraintViolationErrorMessage(theEnv,NULL,NULL,0,0,NULL,0,
vCode,sd->constraint,false);
return false;
}
}
return true;
}
static intBool UnboundVariablesInPattern(
void *theEnv,
struct lhsParseNode *theSlot,
int pattern)
{
struct lhsParseNode *andField;
struct lhsParseNode *rv;
int result;
struct lhsParseNode *orField;
struct symbolHashNode *slotName;
CONSTRAINT_RECORD *theConstraints;
int theField;
/*===================================================*/
/* If a multifield slot is being checked, then check */
/* each of the fields grouped with the multifield. */
/*===================================================*/
if (theSlot->multifieldSlot)
{
theSlot = theSlot->bottom;
while (theSlot != NULL)
{
if (UnboundVariablesInPattern(theEnv,theSlot,pattern))
{ return(TRUE); }
theSlot = theSlot->right;
}
return(FALSE);
}
/*=======================*/
/* Check a single field. */
/*=======================*/
slotName = theSlot->slot;
theField = theSlot->index;
theConstraints = theSlot->constraints;
/*===========================================*/
/* Loop through each of the '|' constraints. */
/*===========================================*/
for (orField = theSlot->bottom;
orField != NULL;
orField = orField->bottom)
{
/*===========================================*/
/* Loop through each of the fields connected */
/* by the '&' within the '|' constraint. */
/*===========================================*/
for (andField = orField;
andField != NULL;
andField = andField->right)
{
/*=======================================================*/
/* If this is not a binding occurence of a variable and */
/* there is no previous binding occurence of a variable, */
/* then generate an error message for a variable that is */
/* referred to but not bound. */
/*=======================================================*/
if (((andField->type == SF_VARIABLE) || (andField->type == MF_VARIABLE)) &&
(andField->referringNode == NULL))
{
VariableReferenceErrorMessage(theEnv,(SYMBOL_HN *) andField->value,NULL,pattern,
slotName,theField);
return(TRUE);
}
/*==============================================*/
/* Check predicate and return value constraints */
/* to insure that all variables used within the */
/* constraint have been previously bound. */
/*==============================================*/
else if ((andField->type == PREDICATE_CONSTRAINT) ||
(andField->type == RETURN_VALUE_CONSTRAINT))
{
rv = CheckExpression(theEnv,andField->expression,NULL,pattern,slotName,theField);
if (rv != NULL) return(TRUE);
}
/*========================================================*/
/* If static constraint checking is being performed, then */
/* determine if constant values have violated the set of */
/* derived constraints for the slot/field (based on the */
/* deftemplate definition and propagated constraints). */
/*========================================================*/
else if (((andField->type == INTEGER) || (andField->type == FLOAT) ||
(andField->type == SYMBOL) || (andField->type == STRING) ||
(andField->type == INSTANCE_NAME)) &&
EnvGetStaticConstraintChecking(theEnv))
{
result = ConstraintCheckValue(theEnv,andField->type,andField->value,theConstraints);
if (result != NO_VIOLATION)
{
ConstraintViolationErrorMessage(theEnv,"A literal restriction value",
NULL,FALSE,pattern,
slotName,theField,result,
theConstraints,TRUE);
return(TRUE);
}
}
}
}
/*===============================*/
/* Return FALSE to indicate that */
/* no errors were detected. */
/*===============================*/
return(FALSE);
}
