Add Applicative instance for STM
I propose adding an Applicative instance for STM.
The first attached patch adds an Applicative instance for STM to base/GHC/Cons.lhs.
Note I had to create a base/Control/Applicative.hs-boot file and import Applicative using {-# SOURCE #-} because I got a "Module imports form a cycle for modules" error.
The second attached patch adds an Applicative instance for the sequential STM to: stm/Control/Sequential/STM.hs
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.12.2 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | libraries/base |
| Test case | |
| Differential revisions | |
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| Blocking | |
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| Operating system | |
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