/// <summary>
/// Lifts an inner Task out of the OneOf.
/// </summary>
/// <typeparam name="TA"></typeparam>
/// <typeparam name="TB"></typeparam>
/// <param name="oneOf"></param>
/// <returns></returns>
public static async Task <OneOf <TA, TB> > LiftTask <TA, TB>(this OneOf <TA, Task <TB> > oneOf)
{
var isA = oneOf.Extract(x => true, x => false);
if (isA)
{
var a = oneOf.Extract(x => x, x => throw new InvalidOperationException());
return(new OneOf <TA, TB>(a));
}
var b = await oneOf.Extract(x => throw new InvalidOperationException(), x => x);
return(new OneOf <TA, TB>(b));
}
private static JToken Unwrap <TA, TB>(OneOf <TA, TB> oneOf)
{
// TODO: Handle primitives
return(oneOf.Extract(
a => JToken.FromObject(a),
b => JToken.FromObject(b)
));
}
/// <summary>
/// Extracts a value after awaiting the previous result.
/// </summary>
public static Task <TResult> Extract <TA, TB, TResult>(
this OneOf <Task <TA>, Task <TB> > oneOf,
Func <TA, TResult> fA,
Func <TB, TResult> fB
)
{
return(oneOf.Extract(
async x => fA(await x),
async x => fB(await x)
));
}