internal void UpdateWhereClause(MemberDomainMap domainMap)
{
List <BoolExpression> boolExpressionList = new List <BoolExpression>();
foreach (BoolExpression atom in this.WhereClause.Atoms)
{
MemberRestriction asLiteral = atom.AsLiteral as MemberRestriction;
IEnumerable <Constant> domain = domainMap.GetDomain(asLiteral.RestrictedMemberSlot.MemberPath);
MemberRestriction memberRestriction = asLiteral.CreateCompleteMemberRestriction(domain);
ScalarRestriction scalarRestriction = asLiteral as ScalarRestriction;
bool flag = scalarRestriction != null && !scalarRestriction.Domain.Contains(Constant.Null) && !scalarRestriction.Domain.Contains(Constant.NotNull) && !scalarRestriction.Domain.Contains(Constant.Undefined);
if (flag)
{
domainMap.AddSentinel(memberRestriction.RestrictedMemberSlot.MemberPath);
}
boolExpressionList.Add(BoolExpression.CreateLiteral((BoolLiteral)memberRestriction, domainMap));
if (flag)
{
domainMap.RemoveSentinel(memberRestriction.RestrictedMemberSlot.MemberPath);
}
}
if (boolExpressionList.Count <= 0)
{
return;
}
this.m_whereClause = BoolExpression.CreateAnd(boolExpressionList.ToArray());
}
// <summary>
// Fixes the range of the restriction in accordance with <paramref name="range" />.
// Member restriction must be complete for this operation.
// </summary>
internal override DomainBoolExpr FixRange(Set<Constant> range, MemberDomainMap memberDomainMap)
{
Debug.Assert(IsComplete, "Ranges are fixed only for complete scalar restrictions.");
var newPossibleValues = memberDomainMap.GetDomain(RestrictedMemberSlot.MemberPath);
BoolLiteral newLiteral = new ScalarRestriction(RestrictedMemberSlot, new Domain(range, newPossibleValues));
return newLiteral.GetDomainBoolExpression(memberDomainMap);
}
// <summary>
// Fixes the range of the restriction in accordance with <paramref name="range" />.
// Member restriction must be complete for this operation.
// </summary>
internal override DomainBoolExpr FixRange(Set <Constant> range, MemberDomainMap memberDomainMap)
{
Debug.Assert(IsComplete, "Ranges are fixed only for complete scalar restrictions.");
var newPossibleValues = memberDomainMap.GetDomain(RestrictedMemberSlot.MemberPath);
BoolLiteral newLiteral = new ScalarRestriction(RestrictedMemberSlot, new Domain(range, newPossibleValues));
return(newLiteral.GetDomainBoolExpression(memberDomainMap));
}
internal override BoolExpr <DomainConstraint <BoolLiteral, Constant> > FixRange(
Set <Constant> range,
MemberDomainMap memberDomainMap)
{
IEnumerable <Constant> domain = memberDomainMap.GetDomain(this.RestrictedMemberSlot.MemberPath);
return(new ScalarRestriction(this.RestrictedMemberSlot, new Domain((IEnumerable <Constant>)range, domain)).GetDomainBoolExpression(memberDomainMap));
}
// <summary>
// Returns a boolean expression that is domain-aware and ready for optimizations etc.
// </summary>
// <param name="domainMap"> Maps members to the values that each member can take; it can be null in which case the possible and actual values are the same. </param>
internal override DomainBoolExpr GetDomainBoolExpression(MemberDomainMap domainMap)
{
// Get the variable name from the slot's memberpath and the possible domain values from the slot
DomainTermExpr result;
if (domainMap != null)
{
// Look up the domain from the domainMap
var domain = domainMap.GetDomain(m_restrictedMemberSlot.MemberPath);
result = MakeTermExpression(this, domain, m_domain.Values);
}
else
{
result = MakeTermExpression(this, m_domain.AllPossibleValues, m_domain.Values);
}
return(result);
}
// requires: The CellConstantDomains in the OneOfConsts of the where
// clause are partially done
// effects: Given the domains of different variables in domainMap,
// fixes the whereClause of this such that all the
// CellConstantDomains in OneOfConsts are complete
internal void UpdateWhereClause(MemberDomainMap domainMap)
{
var atoms = new List <BoolExpression>();
foreach (var atom in WhereClause.Atoms)
{
var literal = atom.AsLiteral;
var restriction = literal as MemberRestriction;
Debug.Assert(restriction != null, "All bool literals must be OneOfConst at this point");
// The oneOfConst needs to be fixed with the new possible values from the domainMap.
var possibleValues = domainMap.GetDomain(restriction.RestrictedMemberSlot.MemberPath);
var newOneOf = restriction.CreateCompleteMemberRestriction(possibleValues);
// Prevent optimization of single constraint e.g: "300 in (300)"
// But we want to optimize type constants e.g: "category in (Category)"
// To prevent optimization of bool expressions we add a Sentinel OneOF
var scalarConst = restriction as ScalarRestriction;
var addSentinel =
scalarConst != null &&
!scalarConst.Domain.Contains(Constant.Null) &&
!scalarConst.Domain.Contains(Constant.NotNull) &&
!scalarConst.Domain.Contains(Constant.Undefined);
if (addSentinel)
{
domainMap.AddSentinel(newOneOf.RestrictedMemberSlot.MemberPath);
}
atoms.Add(BoolExpression.CreateLiteral(newOneOf, domainMap));
if (addSentinel)
{
domainMap.RemoveSentinel(newOneOf.RestrictedMemberSlot.MemberPath);
}
}
// We create a new whereClause that has the memberDomainMap set
if (atoms.Count > 0)
{
m_whereClause = BoolExpression.CreateAnd(atoms.ToArray());
}
}
// requires: The CellConstantDomains in the OneOfConsts of the where
// clause are partially done
// effects: Given the domains of different variables in domainMap,
// fixes the whereClause of this such that all the
// CellConstantDomains in OneOfConsts are complete
internal void UpdateWhereClause(MemberDomainMap domainMap)
{
var atoms = new List<BoolExpression>();
foreach (var atom in WhereClause.Atoms)
{
var literal = atom.AsLiteral;
var restriction = literal as MemberRestriction;
Debug.Assert(restriction != null, "All bool literals must be OneOfConst at this point");
// The oneOfConst needs to be fixed with the new possible values from the domainMap.
var possibleValues = domainMap.GetDomain(restriction.RestrictedMemberSlot.MemberPath);
var newOneOf = restriction.CreateCompleteMemberRestriction(possibleValues);
// Prevent optimization of single constraint e.g: "300 in (300)"
// But we want to optimize type constants e.g: "category in (Category)"
// To prevent optimization of bool expressions we add a Sentinel OneOF
var scalarConst = restriction as ScalarRestriction;
var addSentinel =
scalarConst != null &&
!scalarConst.Domain.Contains(Constant.Null) &&
!scalarConst.Domain.Contains(Constant.NotNull) &&
!scalarConst.Domain.Contains(Constant.Undefined);
if (addSentinel)
{
domainMap.AddSentinel(newOneOf.RestrictedMemberSlot.MemberPath);
}
atoms.Add(BoolExpression.CreateLiteral(newOneOf, domainMap));
if (addSentinel)
{
domainMap.RemoveSentinel(newOneOf.RestrictedMemberSlot.MemberPath);
}
}
// We create a new whereClause that has the memberDomainMap set
if (atoms.Count > 0)
{
m_whereClause = BoolExpression.CreateAnd(atoms.ToArray());
}
}
/// <summary>
/// Returns a boolean expression that is domain-aware and ready for optimizations etc.
/// </summary>
/// <param name="domainMap">Maps members to the values that each member can take;
/// it can be null in which case the possible and actual values are the same.</param>
internal override DomainBoolExpr GetDomainBoolExpression(MemberDomainMap domainMap)
{
// Get the variable name from the slot's memberpath and the possible domain values from the slot
DomainTermExpr result;
if (domainMap != null)
{
// Look up the domain from the domainMap
var domain = domainMap.GetDomain(m_restrictedMemberSlot.MemberPath);
result = MakeTermExpression(this, domain, m_domain.Values);
}
else
{
result = MakeTermExpression(this, m_domain.AllPossibleValues, m_domain.Values);
}
return result;
}
internal override BoolExpr <DomainConstraint <BoolLiteral, Constant> > GetDomainBoolExpression(
MemberDomainMap domainMap)
{
return(domainMap == null ? (BoolExpr <DomainConstraint <BoolLiteral, Constant> >)BoolLiteral.MakeTermExpression((BoolLiteral)this, this.m_domain.AllPossibleValues, this.m_domain.Values) : (BoolExpr <DomainConstraint <BoolLiteral, Constant> >)BoolLiteral.MakeTermExpression((BoolLiteral)this, domainMap.GetDomain(this.m_restrictedMemberSlot.MemberPath), this.m_domain.Values));
}
