path: root/src/Propellor.hs
diff options
authorJoey Hess2015-01-24 22:38:10 -0400
committerJoey Hess2015-01-24 22:38:51 -0400
commit0ee04ecc43e047b00437fb660e71f7dd67dd3afc (patch)
tree621e0ebc68a2afb9410ce6f368bec865f31cc507 /src/Propellor.hs
parent141a7c028bba8d5b9743f2ab1397e69c313a523c (diff)
GADT properties seem to work (untested)
* Property has been converted to a GADT, and will be Property NoInfo or Property HasInfo. This was done to make sure that ensureProperty is only used on properties that do not have Info. Transition guide: - Change all "Property" to "Property NoInfo" or "Property WithInfo" (The compiler can tell you if you got it wrong!) - To construct a RevertableProperty, it is useful to use the new (<!>) operator - Constructing a list of properties can be problimatic, since Property NoInto and Property WithInfo are different types and cannot appear in the same list. To deal with this, "props" has been added, and can built up a list of properties of different types, using the same (&) and (!) operators that are used to build up a host's properties.
Diffstat (limited to 'src/Propellor.hs')
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Propellor.hs b/src/Propellor.hs
index 3eddd8d7..51079ed0 100644
--- a/src/Propellor.hs
+++ b/src/Propellor.hs
@@ -32,6 +32,7 @@
module Propellor (
module Propellor.Types
, module Propellor.Property
+ , module Propellor.Property.List
, module Propellor.Property.Cmd
, module Propellor.PropAccum
, module Propellor.Info
@@ -48,6 +49,7 @@ module Propellor (
import Propellor.Types
import Propellor.Property
import Propellor.Engine
+import Propellor.Property.List
import Propellor.Property.Cmd
import Propellor.PrivData
import Propellor.Types.PrivData