Add Functor, Applicative, Monad, and Monoid instances for ParseResult
In the haskell-src package, add the following instances to !ParseResult:
instance Functor ParseResult
instance Applicative ParseResult
instance Monad ParseResult
instance Monoid m => Monoid (ParseResult m)
This makes it more convenient to traverse and modify a syntax tree that is the result of the parser.
Trac metadata
Trac field | Value |
---|---|
Version | 6.10.3 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | libraries (other) |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |