[ghc-steering-committee] #330: Decorate exceptions with backtraceinformation, rec: accept

[Eric Seidel]

Strong accept from me. I left one question about the backtrace collection defaults on GitHub.

On Mon, Mar 6, 2023, at 08:44, Vladislav Zavialov wrote:
> Dear Committee,
>
> Ben Gamari has proposed #330 "Decorate exceptions with backtrace 
> information". Read it here:
>
> https://github.com/bgamari/ghc-proposals/blob/stacktraces/proposals/0000-exception-backtraces.rst
>
> The proposal attaches contextual information to thrown exceptions. This 
> information includes (but is not limited to) backtraces, making it 
> possible to debug uncaught exceptions more effectively.
>
> This is a very nuanced change, since it modifies SomeException, throw, 
> catch, and other exception-related definitions whose use is extremely 
> widespread. We might end up affecting our users in unexpected ways. 
> Because of that, I ask the committee to review the proposal with the 
> appropriate amount of care.
>
> I am recommending acceptance because adding observability to our 
> programs is an important part of developer ergonomics. From the 
> proposal discussion, I have got the impression that there are numerous 
> commercial users who would benefit from this.
>
> Please take a look at the proposal text and share your thoughts either 
> here or directly on GitHub.
>
> - Vlad 
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