public NotSpecification(IClause <TEntity> originalSpecification)
{
if (originalSpecification == null)
{
throw new ArgumentNullException(nameof(originalSpecification));
}
_originalCriteria = originalSpecification.SatisfiedBy();
}
public override Expression <Func <TEntity, bool> > SatisfiedBy()
{
var leftExpression = _left.SatisfiedBy();
var rightExpression = _right.SatisfiedBy();
var parameter = Expression.Parameter(typeof(TEntity));
var leftVisitor = new ReplaceExpressionVisitor(leftExpression.Parameters[0], parameter);
var left = leftVisitor.Visit(leftExpression.Body);
var rightVisitor = new ReplaceExpressionVisitor(rightExpression.Parameters[0], parameter);
var right = rightVisitor.Visit(rightExpression.Body);
return(Expression.Lambda <Func <TEntity, bool> >(
Expression.AndAlso(left, right), parameter));
}