Improve documentation for Data.Traversable.fmapDefault
Data.Traversable.fmapDefault in fact only works with Traversable instances which override the definition of traverse, not with instances which only override sequenceA (although such instances are perfectly valid). I've attached a patch noting this in the fmapDefault documentation.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.0.3 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | libraries/base |
| Test case | |
| Differential revisions | |
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| Operating system | |
| Architecture |