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  • #11139

Closed
Open
Opened Nov 27, 2015 by quchen@trac-quchen

Add Semigroup warnings

Similar to #8004 (closed), do the following for Semigroup/Monoid:

  1. Warn when an instance of a class has been given, but the type does not

have a certain superclass instance

  1. Warn when top-level definitions conflict with future Prelude names
Trac metadata
Trac field Value
Version
Type Task
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC hvr
Operating system
Architecture
Assignee
Assign to
8.0.1
Milestone
8.0.1 (Past due)
Assign milestone
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None
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Reference: ghc/ghc#11139