Support async methods in MapResult extension method

[kensykora]

Inside my verb handlers I have async calls, and it'd be nice if there were support for async methods this way.

e.g.,

int Main(string[] args) {
  return Parser.Default.ParseArguments<AddOptions, CommitOptions, CloneOptions>(args)
    .MapResultAsync(
      async (AddOptions opts) => RunAddAndReturnExitCodeAsync(opts),
      async (CommitOptions opts) => RunCommitAndReturnExitCodeAsync(opts),
      async (CloneOptions opts) => RunCloneAndReturnExitCodeAsync(opts),
      errs => 1);
}

[gsscoder]

📎 Please read: #250. Thanks for collaboration and patience! 😅
Giacomo
P.S.: valid only for me, if a main contrib. is available he's obviously free to support devs/users of the project.

[bpug]

Try this :

var result = Parser.Default.ParseArguments<AddOptions, CommitOptions>(args);
var test = await  result.MapResult(
                async (AddOptions opts) => await RunAddAndReturnExitCodeAsync(opts),
                async (CommitOptionsopts) => await RunCommitAndReturnExitCodeAsync(opts),
                err => Task.FromResult(-1));

[xabikos]

The suggestion from @bpug worked for me.

[kensykora]

Thanks, seems like a viable workaround.