[jira] [Commented] (ARROW-7086) [C++] Provide a wrapper for invoking factories to produce a Result

["Ben Kietzman (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-7086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16969288#comment-16969288 ] 

Ben Kietzman commented on ARROW-7086:
-------------------------------------

[~emkornfield]

> [C++] Provide a wrapper for invoking factories to produce a Result
> ------------------------------------------------------------------
>
>                 Key: ARROW-7086
>                 URL: https://issues.apache.org/jira/browse/ARROW-7086
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>    Affects Versions: 0.15.1
>            Reporter: Ben Kietzman
>            Assignee: Ben Kietzman
>            Priority: Major
>             Fix For: 1.0.0
>
>
> There is a proliferation of code like:
> {code}
> Result<int> SafeAdd(int a, int b) {
>   int out;
>   RETURN_NOT_OK(DoSafeAdd(a, b, &out));
>   return out;
> }
> {code}
> Ideally, this should be resolved by moving the implementation of SafeAdd into the Result returning function then using {{Result::Value}} in the Status returning function. In cases where this is inconvenient, it'd be helpful to have an adapter for doing this more efficiently:
> {code}
> Result<int> SafeAdd(int a, int b) {
>   return ResultInvoke(DoSafeAdd, a, b);
> }
> {code}



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