public static ICommandBuilder <T> Add <T>(this ICommandBuilder <T> builder, AsyncContextHandler <T> action) =>
builder.Add(new AsyncCommand <T>(async(c, ct) =>
{
await action(c, ct).ConfigureAwait(false);
return(c);
}).ToSync());
private static AsyncContextTransformation <TContext> Compose(AsyncContextTransformation <TContext> f1, AsyncContextHandler <TContext> f2) =>
async(c, ct) =>
{
var r = await f1(c, ct).ConfigureAwait(false);
if (!ct.IsCancellationRequested)
{
await f2(r, ct).ConfigureAwait(false);
}
return(r);
};
public static IAsyncCommandBuilder <T> AddIf <T>(this IAsyncCommandBuilder <T> builder, Predicate <T> predicate, AsyncContextHandler <T> action) =>
builder.Add(new AsyncCommand <T>(async(i, ct) =>
{
if (predicate(i))
{
await action(i, ct).ConfigureAwait(false);
}
return(i);
}));
