Add a WARNING pragma

[ghc-hetmet.git] / compiler / main / HscTypes.lhs

diff --git a/compiler/main/HscTypes.lhs b/compiler/main/HscTypes.lhs
index 244b312..d5b6231 100644 (file)
--- a/compiler/main/HscTypes.lhs
+++ b/compiler/main/HscTypes.lhs
@@ -32,8 +32,8 @@ module HscTypes (
        icPrintUnqual, mkPrintUnqualified, extendInteractiveContext,
         substInteractiveContext,
 
-       ModIface(..), mkIfaceDepCache, mkIfaceHashCache, mkIfaceFixCache,
-       emptyIfaceDepCache,
+       ModIface(..), mkIfaceWarnCache, mkIfaceHashCache, mkIfaceFixCache,
+       emptyIfaceWarnCache,
 
        FixityEnv, FixItem(..), lookupFixity, emptyFixityEnv,
 
@@ -52,7 +52,7 @@ module HscTypes (
        GenAvailInfo(..), AvailInfo, RdrAvailInfo, 
        IfaceExport,
 
-       Deprecations(..), DeprecTxt, plusDeprecs,
+       Warnings(..), WarningTxt(..), plusWarns,
 
        PackageInstEnv, PackageRuleBase,
 
@@ -101,7 +101,7 @@ import PrelNames    ( gHC_PRIM )
 import Packages hiding ( Version(..) )
 import DynFlags                ( DynFlags(..), isOneShot, HscTarget (..) )
 import DriverPhases    ( HscSource(..), isHsBoot, hscSourceString, Phase )
-import BasicTypes      ( IPName, Fixity, defaultFixity, DeprecTxt )
+import BasicTypes      ( IPName, Fixity, defaultFixity, WarningTxt(..) )
 import OptimizationFuel        ( OptFuelState )
 import IfaceSyn
 import FiniteMap       ( FiniteMap )
@@ -445,8 +445,8 @@ data ModIface
         mi_fixities :: [(OccName,Fixity)],
                -- NOT STRICT!  we read this field lazily from the interface file
 
-               -- Deprecations
-       mi_deprecs  :: Deprecations,
+               -- Warnings
+       mi_warns  :: Warnings,
                -- NOT STRICT!  we read this field lazily from the interface file
 
                -- Type, class and variable declarations
@@ -485,7 +485,7 @@ data ModIface
                -- Cached environments for easy lookup
                -- These are computed (lazily) from other fields
                -- and are not put into the interface file
-       mi_dep_fn  :: Name -> Maybe DeprecTxt,  -- Cached lookup for mi_deprecs
+       mi_warn_fn  :: Name -> Maybe WarningTxt,        -- Cached lookup for mi_warns
        mi_fix_fn  :: OccName -> Fixity,        -- Cached lookup for mi_fixities
        mi_hash_fn :: OccName -> Maybe (OccName, Fingerprint),
                         -- Cached lookup for mi_decls
@@ -546,7 +546,7 @@ data ModGuts
         mg_rules     :: ![CoreRule],    -- Rules from this module
        mg_binds     :: ![CoreBind],     -- Bindings for this module
        mg_foreign   :: !ForeignStubs,
-       mg_deprecs   :: !Deprecations,   -- Deprecations declared in the module
+       mg_warns     :: !Warnings,       -- Warnings declared in the module
        mg_hpc_info  :: !HpcInfo,        -- info about coverage tick boxes
         mg_modBreaks :: !ModBreaks,
         mg_vect_info :: !VectInfo,        -- Pool of vectorised declarations
@@ -656,7 +656,7 @@ emptyModIface mod
               mi_exports  = [],
               mi_exp_hash = fingerprint0,
               mi_fixities = [],
-              mi_deprecs  = NoDeprecs,
+              mi_warns    = NoWarnings,
               mi_insts     = [],
               mi_fam_insts = [],
               mi_rules     = [],
@@ -664,7 +664,7 @@ emptyModIface mod
               mi_globals   = Nothing,
               mi_orphan_hash = fingerprint0,
                mi_vect_info = noIfaceVectInfo,
-              mi_dep_fn    = emptyIfaceDepCache,
+              mi_warn_fn    = emptyIfaceWarnCache,
               mi_fix_fn    = emptyIfaceFixCache,
               mi_hash_fn   = emptyIfaceHashCache,
               mi_hpc       = False
@@ -1004,11 +1004,11 @@ These types are defined here because they are mentioned in ModDetails,
 but they are mostly elaborated elsewhere
 
 \begin{code}
------------------- Deprecations -------------------------
-data Deprecations
-  = NoDeprecs
-  | DeprecAll DeprecTxt                -- Whole module deprecated
-  | DeprecSome [(OccName,DeprecTxt)] -- Some specific things deprecated
+------------------ Warnings -------------------------
+data Warnings
+  = NoWarnings
+  | WarnAll WarningTxt         -- Whole module deprecated
+  | WarnSome [(OccName,WarningTxt)] -- Some specific things deprecated
      -- Only an OccName is needed because
      --    (1) a deprecation always applies to a binding
      --        defined in the module in which the deprecation appears.
@@ -1031,20 +1031,20 @@ data Deprecations
      --        a Name to its fixity declaration.
   deriving( Eq )
 
-mkIfaceDepCache :: Deprecations -> Name -> Maybe DeprecTxt
-mkIfaceDepCache NoDeprecs        = \_ -> Nothing
-mkIfaceDepCache (DeprecAll t)    = \_ -> Just t
-mkIfaceDepCache (DeprecSome pairs) = lookupOccEnv (mkOccEnv pairs) . nameOccName
+mkIfaceWarnCache :: Warnings -> Name -> Maybe WarningTxt
+mkIfaceWarnCache NoWarnings  = \_ -> Nothing
+mkIfaceWarnCache (WarnAll t) = \_ -> Just t
+mkIfaceWarnCache (WarnSome pairs) = lookupOccEnv (mkOccEnv pairs) . nameOccName
 
-emptyIfaceDepCache :: Name -> Maybe DeprecTxt
-emptyIfaceDepCache _ = Nothing
+emptyIfaceWarnCache :: Name -> Maybe WarningTxt
+emptyIfaceWarnCache _ = Nothing
 
-plusDeprecs :: Deprecations -> Deprecations -> Deprecations
-plusDeprecs d NoDeprecs = d
-plusDeprecs NoDeprecs d = d
-plusDeprecs _ (DeprecAll t) = DeprecAll t
-plusDeprecs (DeprecAll t) _ = DeprecAll t
-plusDeprecs (DeprecSome v1) (DeprecSome v2) = DeprecSome (v1 ++ v2)
+plusWarns :: Warnings -> Warnings -> Warnings
+plusWarns d NoWarnings = d
+plusWarns NoWarnings d = d
+plusWarns _ (WarnAll t) = WarnAll t
+plusWarns (WarnAll t) _ = WarnAll t
+plusWarns (WarnSome v1) (WarnSome v2) = WarnSome (v1 ++ v2)
 \end{code}
 
 
@@ -1230,7 +1230,7 @@ data ExternalPackageState
                --      * Fingerprint info
                --      * Its exports
                --      * Fixities
-               --      * Deprecations
+               --      * Warnings
 
        eps_PTE :: !PackageTypeEnv,        -- Domain = external-package modules