public CsvResult(string fileName, IEnumerable <T> records)
: this(fileName)
{
if (records == null)
{
throw new ArgumentNullException(nameof(records));
}
_records = OneOf <IEnumerable <T>, IAsyncEnumerable <T> > .FromT0(records);
}
public static void IsSuccess3()
{
var value = OneOf <int, NoElements, NoElements> .FromT0(1);
int dotValue = value.Value();
// Versus the built in
object regularValue = value.Value;
Assert.AreEqual(1, dotValue);
Assert.AreEqual(regularValue, dotValue);
}
public static void RepeatedlySlideToBottomOfMap(this TobogganPosition self, Slope slope, Action <TobogganPosition> actionBetweenEachSlide)
{
var tobogganPosition = OneOf <TobogganPosition, BottomOfMap> .FromT0(self);
do
{
tobogganPosition = tobogganPosition.Match(tp => tp.Slide(slope), _ => throw new InvalidOperationException());
tobogganPosition.Switch(actionBetweenEachSlide, _ => { });
}while (tobogganPosition.Match(_ => true, _ => false));
}
public static void IsSuccess3()
{
var value = OneOf <int, NoElements, NoElements> .FromT0(1);
Assert.Throws <InvalidOperationException>(
() => value.WhyNot());
Assert.Throws <InvalidOperationException>(
() =>
{
var _ = value.AsT1;
}, "because parity");
}
public void AssertOption_OneOf_NotApplicableCase()
{
var itemToCheck = OneOf <Some <int>, None> .FromT0(new Some <int>
{
Value = 3
});
Action failureAction = () => itemToCheck.Should().BeCase <None>();
failureAction.Should().Throw <AssertionException>().WithMessage(
"Value should be assignable to \"None\" but found \"Some<Int32>\" instead");
}
public static OneOf <IEnumerable <TResult>, TError> SelectMany <TSource, TSuccess, TError, TResult>(
this IEnumerable <TSource> source,
Func <TSource, OneOf <TSuccess, TError> > selector,
Func <TSource, TSuccess, TResult> resultSelector)
{
return(source.Aggregate(
OneOf <ImmutableArray <TResult>, TError> .FromT0(ImmutableArray <TResult> .Empty),
(previousAggregate, currentItem) =>
previousAggregate.Match(
previousSuccesses => selector(currentItem).Match <OneOf <ImmutableArray <TResult>, TError> >(
itemSuccess => previousSuccesses.Add(resultSelector(currentItem, itemSuccess)),
itemError => itemError),
previousError => previousError),
aggregate => aggregate.Match <OneOf <IEnumerable <TResult>, TError> >(allSuccesses => allSuccesses, error => error)));
}
public void AssertOption_OneOf_CaseNotPresent()
{
var itemToCheck =
OneOf <Some <int>, None>
.FromT0(
new Some <int>
{
Value = 3
});
Action failureAction = () => itemToCheck.Should().BeCase <int>();
failureAction.Should().Throw <AssertionException>().WithMessage(
"Unable to find any Discriminated Union method on type \"OneOf<Some<Int32>,None>\" for expected type \"Int32\"");
}
private async Task <Option <OneOf <PostReadModel, NotApprovedResult <PostReadModel> > > > FindApprovedPost(Expression <Func <PostEntity, bool> > predicate)
{
var postEntity = await CreateBasePostQuery().FirstOrDefaultAsync(predicate);
if (postEntity == null)
{
return(Option.None <OneOf <PostReadModel, NotApprovedResult <PostReadModel> > >());
}
else
{
var claims = await GetCreatorClaims(postEntity.CreatedBy.Id);
var post = postEntity.ToReadModel(claims);
var result = post.IsApproved ?
OneOf <PostReadModel, NotApprovedResult <PostReadModel> > .FromT0(post) :
OneOf <PostReadModel, NotApprovedResult <PostReadModel> > .FromT1(new NotApprovedResult <PostReadModel>(post));
return(Option.Some(result));
}
}
public void AssertOption_OneOf_SomeFound()
{
//Arrange
var itemToCheck = OneOf <Some <int>, None> .FromT0(new Some <int>
{
Value = 3
});
//Assert
itemToCheck
.Should()
.BeCase <Some <int> >()
.And
.Should()
.BeEquivalentTo(
new Some <int>
{
Value = 3
});
}
public static OneOf <TobogganPosition, BottomOfMap> Slide(this TobogganPosition self, Slope slope)
{
var result = OneOf <TobogganPosition, BottomOfMap> .FromT0(Enumerable.Range(0, slope.right).Aggregate(self, (p, _) => p.MoveRight()));
return(Enumerable.Range(0, slope.down).Aggregate(result, (p, _) => p.Match(p => p.MoveDown(), p => p)));
}
public void ResolveIFooFromResultMethod()
{
var result = OneOf <IFoo, int> .FromT0(new Foo());
}
public static void IsSuccess3()
{
var value = OneOf <int, NoElements, NoElements> .FromT0(1);
Assert.IsTrue(value.IsSuccess());
}