void DefinePredicate(IComparisonOperator op, BinaryExpression X)
{
if (!SpecifiesMemberPredicate(X))
{
return;
}
var member = X.TryGetAccessedMember();
if (!member)
{
return;
}
var value = X.GetValue();
if (!value)
{
return;
}
var predicate = MemberValuePredicate.Define(op, member.Require(), value.Require());
if (CurrentJunction != null)
{
CurrentJunction.Item2.Criteria.Add(predicate);
}
}
public void Register(IComparisonOperator @operator)
{
Require.NotNull(@operator, "operator");
if (!_operatorsByName.TryAdd(@operator.Name, @operator))
{
throw new InvalidOperationException("A comparison operator with name '" + @operator.Name + "' already exists.");
}
else
{
if (!String.IsNullOrWhiteSpace(@operator.Alias))
{
if (!_operatorsByName.TryAdd(@operator.Alias, @operator))
{
IComparisonOperator temp;
_operatorsByName.TryRemove(@operator.Name, out temp);
throw new InvalidOperationException("Comparison operator alias '" + @operator.Alias + "' already exists.");
}
}
}
}
public ComparisonOperatorModel(IComparisonOperator @operator)
{
Name = @operator.Name;
Alias = @operator.Alias;
DisplayName = String.IsNullOrWhiteSpace(@operator.Alias) ? Name : Alias;
}
public ComparisonOperatorModel(IComparisonOperator @operator)
{
Name = @operator.Name;
Alias = @operator.Alias;
DisplayName = String.IsNullOrWhiteSpace(@operator.Alias) ? Name : Alias;
}