Store hidden modules in .haddock files

We store documentation for an entity in the 'InstalledInterface' of the
definition site module, and never in the same structure for a module which
re-exports the entity. So when a client of the Haddock library wants to look up
some documentation, he/she might need to access a hidden module. But we
currently don't store hidden modules in the .haddock files.

So we add the hidden modules and the Haddock options to the .haddock files.
The options will be used to filter the module list to obtain the visible
modules only, which is necessary for generating the contents and index for
installed packages.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/Haddock/Types.hs b/src/Haddock/Types.hs
index 88b6f87a..44cc9161 100644
--- a/src/Haddock/Types.hs
+++ b/src/Haddock/Types.hs
@@ -167,7 +167,8 @@ data InstalledInterface = InstalledInterface {
   instInfo           :: HaddockModInfo Name,
   instDocMap         :: Map Name (HsDoc DocName),
   instExports        :: [Name],
-  instVisibleExports :: [Name]
+  instVisibleExports :: [Name],
+  instOptions        :: [DocOption]
 }
 
 
@@ -178,7 +179,8 @@ toInstalledIface interface = InstalledInterface {
   instInfo           = ifaceInfo           interface,
   instDocMap         = ifaceRnDocMap       interface,
   instExports        = ifaceExports        interface,
-  instVisibleExports = ifaceVisibleExports interface
+  instVisibleExports = ifaceVisibleExports interface,
+  instOptions        = ifaceOptions        interface
 }