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  • #15044

Closed
Open
Opened Apr 16, 2018 by lyxia@trac-lyxia

Option to output instance resolution process

Would it be possible to see what instances get picked by the constraint solver? For example, see coq's Set Typeclass Debug..

The following comment also shows what it might look like: https://www.reddit.com/r/haskell/comments/8cmn4i/algorithmically_scrapping_your_typeclasses/dxg8fes/

Trac metadata
Trac field Value
Version 8.2.2
Type FeatureRequest
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
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CC lyxia
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Architecture
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Reference: ghc/ghc#15044