public static async Task <Result <TResult, TError> > FoldAsync <TResult, T, TError>(
this IEnumerable <Result <T, TError> > values,
Result <TResult, TError> seed, Func <TError, TError, TError> mergeFunc,
Func <TResult, T, Task <TResult> > aggrFunc)
=> await EnumerableExtensions.FoldAsync(values, seed,
(acc, value) => AggrHelper.FuncAsync(acc, value, aggrFunc, mergeFunc))
.ConfigureAwait(false);
//Reduce on List<Option<T>>
public static async Task <Option <T> > ReduceAsync <T>(this IEnumerable <Option <T> > values, Func <T, T, Task <T> > aggrFunc)
{
using (var enumerator = values.ThrowIfDefault(nameof(values)).GetEnumerator())
{
return(await InternalList.ReduceInternalAsync(enumerator,
(acc, val) => AggrHelper.FuncAsync(acc, val, aggrFunc))
.ConfigureAwait(false));
}
}
//TryReduceUntil on Result<T, TError>
public static Task <Option <Result <T, TError> > > TryReduceUntilAsync <T, TError>(this IEnumerable <Result <T, TError> > values,
Func <T, T, Task <T> > aggrFunc)
=> values.ThrowIfDefault(nameof(values)).TryReduceUntilAsync(
(acc, val) => AggrHelper.FuncUntilAsync(acc, val, aggrFunc));
public static Task <Option <Result <T, TError> > > TryReduceAsync <T, TError>(this IEnumerable <Result <T, TError> > values,
Func <T, T, Task <T> > aggrFunc) where TError : IPlus <TError, TError>
=> values.ThrowIfDefault(nameof(values)).TryReduceAsync(
(acc, value) => AggrHelper.FuncAsync(acc, value, aggrFunc, PlusHelper.Plus));
//Reduce on Result<T, TError>
public static Task <Result <T, TError> > ReduceAsync <T, TError>(this IEnumerable <Result <T, TError> > values,
Func <TError, TError, TError> mergeFunc, Func <T, T, Task <T> > aggrFunc)
=> values.ThrowIfDefault(nameof(values)).ReduceAsync(
(acc, value) => AggrHelper.FuncAsync(acc, value, aggrFunc, mergeFunc));
public static Task <Result <TResult, TError> > FoldUntilAsync <TResult, T, TError>(this IEnumerable <Result <T, TError> > values,
Result <TResult, TError> seed, Func <TResult, T, Task <TResult> > aggrFunc)
=> values.ThrowIfDefault(nameof(values)).FoldUntilAsync(seed,
(acc, value) => AggrHelper.FuncUntilAsync(acc, value, aggrFunc));
public static async Task <Result <TResult> > FoldUntilAsync <TResult, T>(this IEnumerable <Result <T> > values,
Result <TResult> seed, Func <TResult, T, Task <TResult> > aggrFunc) =>
await values.FoldUntilAsync(seed,
(acc, value) => AggrHelper.FuncUntilAsync(acc, value, aggrFunc))
.ConfigureAwait(false);
