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| author | Joey Hess <joeyh@joeyh.name> | 2016-11-11 17:29:11 -0400 |
|---|---|---|
| committer | Joey Hess <joeyh@joeyh.name> | 2016-11-11 17:29:25 -0400 |
| commit | c0d0e57257fe8dee1f9d37a6d49b6322af985a69 (patch) | |
| tree | be921c1ad45c42e6ed1c987fc51d6e9b7e013689 /src/Propellor/Container.hs | |
| parent | c24acf55af190bc332b29d0ef4a04dda9335b01a (diff) | |
Clean up build warnings about redundant constraints when built with ghc 8.0.
Only a couple of the constraints were really redundant. The rest are
essential to propellor's tracking of Info propigation, so I silenced the
warning for those.
It would be better to only silence the warning for the functions with the
extra constraints, but IIRC warnings can only be silenced on an entire file
basis.
This commit was sponsored by Andreas on Patreon.
Diffstat (limited to 'src/Propellor/Container.hs')
| -rw-r--r-- | src/Propellor/Container.hs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/Propellor/Container.hs b/src/Propellor/Container.hs index c4d6f864..5c365f59 100644 --- a/src/Propellor/Container.hs +++ b/src/Propellor/Container.hs @@ -1,4 +1,5 @@ {-# LANGUAGE DataKinds, TypeFamilies #-} +{-# OPTIONS_GHC -fno-warn-redundant-constraints #-} module Propellor.Container where @@ -43,6 +44,9 @@ propagateContainer :: -- Since the children being added probably have info, -- require the Property's metatypes to have info. + -- -Wredundant-constraints is turned off because + -- this constraint appears redundant, but is actually + -- crucial. ( IncludesInfo metatypes ~ 'True , IsContainer c ) |