public Expression BoolUnaryExpression(BoolUnaryExpression expression)
{
if (expression.Operator != Operator.Not)
{
throw new NotSupportedException();
}
return(expression.Expression);
}
public override ICriterion BoolUnaryExpression(BoolUnaryExpression expression)
{
var criterion = CreateCriterion(expression.Expression);
switch (expression.Operator)
{
case Operator.Not: return(Restrictions.Not(criterion));
default: throw new NotSupportedException();
}
}
private Expression ResolveBoolUnaryLiteral(BoolUnaryExpression expression, LiteralExpression literal)
{
if (expression.Operator != Operator.Not)
{
throw new NotSupportedException();
}
// CoerceBoolExpression takes care of the type of the literal.
Debug.Assert(literal.LiteralType == LiteralType.Boolean);
return(new LiteralExpression(!(bool)literal.Value, LiteralType.Boolean));
}
public Expression BoolUnaryExpression(BoolUnaryExpression expression)
{
var result = expression.Expression.Visit(this);
var literal = result as LiteralExpression;
if (literal != null)
{
return(ResolveBoolUnaryLiteral(expression, literal));
}
return(new BoolUnaryExpression(expression.Operator, result));
}
public virtual T BoolUnaryExpression(BoolUnaryExpression expression)
{
throw new QueryNotSupportException();
}