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Source overload breaks `match!`

See original GitHub issue

In https://github.com/demystifyfp/FsToolkit.ErrorHandling/pull/83 I started using the Source member to help with maintainability. However after using it in a work project, match! expressions became broken. @baronfel identified the issue in the F# compiler and have a PR open https://github.com/dotnet/fsharp/pull/9407.

This is just a tracking issue for the upstream problem so others can find this easily.

Issue Analytics

State:
Created 3 years ago
Reactions:1
Comments:7

Top GitHub Comments

1reaction

baronfelcommented, Sep 20, 2021

@JohnTheGr8 I’d say that’s the correct way to think of it, yeah. Adding many Bind overloads like this library did previously may have made it feel more ‘open’, but it was a maintenance nightmare and also very hard to reason about what actually was happening in every possible case. With Source, the mental and technical overhead is greatly reduced, which should mean it’s easier for users as well! I think a good example of the type of code that this fixes is in this PR/Comment thread.

0reactions

JohnTheGr8commented, Sep 20, 2021

Thanks for taking the time to explain!

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