protected virtual Expression VisitIf(DbIFCommand ifx)
{
var check = this.Visit(ifx.Check);
var ifTrue = this.Visit(ifx.IfTrue);
var ifFalse = this.Visit(ifx.IfFalse);
return(this.UpdateIf(ifx, check, ifTrue, ifFalse));
}
protected DbIFCommand UpdateIf(DbIFCommand ifx, Expression check, Expression ifTrue, Expression ifFalse)
{
if (check != ifx.Check || ifTrue != ifx.IfTrue || ifFalse != ifx.IfFalse)
{
return(new DbIFCommand(check, ifTrue, ifFalse));
}
return(ifx);
}
protected override Expression VisitIf(DbIFCommand ifx)
{
var test = Expression.Condition
(
ifx.Check,
ifx.IfTrue,
ifx.IfFalse ?? (ifx.IfTrue.Type == typeof(int) ? Expression.Property(this.executor, nameof(QueryExecutor.RowsAffected)) as Expression : Expression.Constant(TypeHelper.GetDefault(ifx.IfTrue.Type), ifx.IfTrue.Type) as Expression)
);
return(this.Visit(test));
}
protected virtual bool CompareIf(DbIFCommand x, DbIFCommand y)
{
return(this.Compare(x.Check, y.Check) && this.Compare(x.IfTrue, y.IfTrue) && this.Compare(x.IfFalse, y.IfFalse));
}
protected override Expression VisitIf(DbIFCommand ifx)
{
throw new NotSupportedException();
}