protected CompositeSpecification([NotNull] ISpecification<T> left, [NotNull] ISpecification<T> right,
[NotNull] Func<Expression, Expression, Expression> mergeExpression)
{
left = left ?? throw new ArgumentNullException(nameof(left));
right = right ?? throw new ArgumentNullException(nameof(right));
mergeExpression = mergeExpression ?? throw new ArgumentNullException(nameof(mergeExpression));
_left = left.AsComplexSpecification();
_right = right.AsComplexSpecification();
_expression = ExpressionComposer.Compose(_left.GetExpression(), _right.GetExpression(), mergeExpression);
_grouping = right is CompositeSpecification<T>;
}
public NotSpecification(ISpecification <T> baseSpecification)
{
baseSpecification = baseSpecification ?? throw new ArgumentNullException(nameof(baseSpecification));
_baseSpecification = baseSpecification.AsComplexSpecification();
if (_baseSpecification is INegatableLinqSpecification <T> negatableSpecification)
{
_expression = negatableSpecification.GetNegationExpression();
}
else
{
_expression = ExpressionComposer.Compose(_baseSpecification.GetExpression(), Expression.Not);
}
}
