diff options
Diffstat (limited to 'compiler/GHC/Unit/Module/Deps.hs')
| -rw-r--r-- | compiler/GHC/Unit/Module/Deps.hs | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/compiler/GHC/Unit/Module/Deps.hs b/compiler/GHC/Unit/Module/Deps.hs index 2cafbbdcd4..9832383d8a 100644 --- a/compiler/GHC/Unit/Module/Deps.hs +++ b/compiler/GHC/Unit/Module/Deps.hs @@ -110,7 +110,7 @@ data Usage usg_mod :: Module, -- ^ External package module depended on usg_mod_hash :: Fingerprint, - -- ^ Cached module fingerprint + -- ^ Cached module ABI fingerprint (corresponds to mi_mod_hash) usg_safe :: IsSafeImport -- ^ Was this module imported as a safe import } @@ -119,7 +119,10 @@ data Usage usg_mod_name :: ModuleName, -- ^ Name of the module usg_mod_hash :: Fingerprint, - -- ^ Cached module fingerprint + -- ^ Cached module ABI fingerprint (corresponds to mi_mod_hash). + -- This may be out dated after recompilation was avoided, but is + -- still used as a fast initial check for change during + -- recompilation avoidance. usg_entities :: [(OccName,Fingerprint)], -- ^ Entities we depend on, sorted by occurrence name and fingerprinted. -- NB: usages are for parent names only, e.g. type constructors |