internal SqlUnary Unary(SqlNodeType nodeType, SqlExpression expression, MethodInfo method, Expression sourceExpression)
{
Type clrType = null;
ProviderType sqlType = null;
if (nodeType == SqlNodeType.Count)
{
clrType = typeof(int);
sqlType = typeProvider.From(typeof(int));
}
else if (nodeType == SqlNodeType.LongCount)
{
clrType = typeof(long);
sqlType = typeProvider.From(typeof(long));
}
else if (nodeType == SqlNodeType.ClrLength)
{
clrType = typeof(int);
sqlType = typeProvider.From(typeof(int));
}
else
{
if (nodeType.IsPredicateUnaryOperator())
{
// DevDiv 201730 - Do not ignore nullability of bool type
clrType = expression.ClrType.Equals(typeof(bool?)) ? typeof(bool?) : typeof(bool);
}
else
{
clrType = expression.ClrType;
}
sqlType = typeProvider.PredictTypeForUnary(nodeType, expression.SqlType);
}
return(new SqlUnary(nodeType, clrType, sqlType, expression, method, sourceExpression));
}
