diff options
Diffstat (limited to 'src/Propellor')
| -rw-r--r-- | src/Propellor/Property.hs | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/src/Propellor/Property.hs b/src/Propellor/Property.hs index 10730710..111756ff 100644 --- a/src/Propellor/Property.hs +++ b/src/Propellor/Property.hs @@ -269,13 +269,9 @@ isNewerThan x y = do -- If neither input property supports the targeted OS, calls -- `unsupportedOS`. Using the example above on a Fedora system would -- fail that way. --- --- (It would be better if this constrained its return type to the Union --- of the targets of the inputs, but that does not seems to currently --- be possible with ghc.) -{- For some reason, ghc does not like this type signature, or indeed the - - version of this that it emits. But this does compile! Until a type - - signature can be written down, cannot add the Union constraint. +{- I have not yet managed to write down a type signature for this + - that ghc will accept. Until a type signature can be written down, + - cannot add the Union constraint. - http://stackoverflow.com/questions/36256557/what-is-the-type-of-matches-m-s-m-fromsing-s pickOS :: |