cadey
/
propellor
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

update

This commit is contained in:
Joey Hess 2014-12-06 16:15:08 -04:00
parent d782c413eb
commit dd40a05ced
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
doc/todo/info_propigation_out_of_nested_properties.mdwn
View File

@ -13,6 +13,10 @@ Here, the Info of `foo` is not propigated out. Nor is `bar`'s Info.
Of course, only one of them will be run, and only its info should be propigated
out..
This commonly afflicts eg, privData. For example, `User.hasPassword'`
has this problem, and this prevents --list-fields from listing privdata
that's not set from that property.
One approach might be to make the Propellor monad be able to be run in two
modes. In one mode, it actually perform IO, etc. In the other mode, all
liftIO is a no-op, but all Info encountered is accumulated using a Reader
@ -24,5 +28,7 @@ properties have been examined for info!
Perhaps that can be finessed. We don't really need to propigate out OS info.
Just DNS and PrivDataField Info. So info could be collected in 2 passes,
first as it's done now by static propertyInfo values. Then by running
the Properties in the Reader monad.
first as it's done now by static propertyInfo values. Then take that
and use it as the Info when running the Properties in the Reader monad.
Combine what the Reader accumulates with the static info to get the full
info.