Proposal: Deprecate decodeUtf8

David Feuer david.feuer at
Thu Aug 18 17:19:28 UTC 2016

Being the disruptive sort.... What if we DEPRECATE it for a cycle and then
change its type? Almost all code that is no longer correct will fail to

On Aug 18, 2016 12:52 PM, "Bryan O'Sullivan" <bos at> wrote:

> On Thu, Aug 18, 2016 at 2:08 AM, Niklas Hamb├╝chen <mail at> wrote:
>> I propose to add a deprecation pragma to the partial function
>> Data.Text.decodeUtf8.
> I'm not terribly open to adding a pragma for this, I'm afraid. Its
> documentation already clearly states that it will throw an exception. I
> understand that developers often fail to read documentation, but I don't
> want to train them to also ignore compiler output because they get
> permanent warnings that they can't suppress.
> I do of course agree that in hindsight, it would have been best to provide
> a safer function with this name.
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