Maxwell mxswd
mxswd
/ gist:b2e7c6a9c3f8ddd67793
Last active
August 29, 2015 14:02
— forked from joshaber/gist:1a3d6af1a81e86fb6322
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| class F<A> { | |
| } | |
| protocol Functor { | |
| typealias A | |
| typealias B | |
| typealias FA = F<A> | |
| typealias FB = F<B> | |
| func fmap(a: FA, fn: (A -> B)) -> FB | |
| } |