Add warning for probable identities (fromIntegral and friends)

[ghc-hetmet.git] / compiler / prelude / PrelNames.lhs

diff --git a/compiler/prelude/PrelNames.lhs b/compiler/prelude/PrelNames.lhs
index 84e7ee9..40910f6 100644 (file)
--- a/compiler/prelude/PrelNames.lhs
+++ b/compiler/prelude/PrelNames.lhs
@@ -136,9 +136,12 @@ basicKnownKeyNames
        traversableClassName,
 
        -- Numeric stuff
-       negateName, minusName, 
-       fromRationalName, fromIntegerName, 
-       geName, eqName, 
+        negateName, minusName, geName, eqName,
+
+        -- Conversion functions
+        fromRationalName, fromIntegerName,
+        toIntegerName, toRationalName,
+        fromIntegralName, realToFracName,
 
         -- String stuff
         fromStringName,
@@ -172,7 +175,7 @@ basicKnownKeyNames
        newStablePtrName,
 
     -- GHC Extensions
-    groupWithName,
+        groupWithName,
 
        -- Strings and lists
        unpackCStringName, unpackCStringAppendName,
@@ -182,6 +185,8 @@ basicKnownKeyNames
        concatName, filterName, mapName,
        zipName, foldrName, buildName, augmentName, appendName,
 
+        dollarName,        -- The ($) apply function
+
         -- Parallel array operations
        nullPName, lengthPName, replicatePName, singletonPName, mapPName,
        filterPName, zipPName, crossMapPName, indexPName,
@@ -234,7 +239,9 @@ genericTyConNames = [crossTyConName, plusTyConName, genUnitTyConName]
 pRELUDE :: Module
 pRELUDE                = mkBaseModule_ pRELUDE_NAME
 
-gHC_PRIM, gHC_TYPES, gHC_BOOL, gHC_UNIT, gHC_ORDERING, gHC_GENERICS, gHC_CLASSES, gHC_BASE, gHC_ENUM,
+gHC_PRIM, gHC_TYPES, gHC_UNIT, gHC_ORDERING, gHC_GENERICS,
+    gHC_MAGIC,
+    gHC_CLASSES, gHC_BASE, gHC_ENUM,
     gHC_SHOW, gHC_READ, gHC_NUM, gHC_INTEGER, gHC_INTEGER_TYPE, gHC_LIST, gHC_PARR,
     gHC_TUPLE, dATA_TUPLE, dATA_EITHER, dATA_STRING, dATA_FOLDABLE, dATA_TRAVERSABLE,
     gHC_PACK, gHC_CONC, gHC_IO, gHC_IO_Exception,
@@ -246,9 +253,9 @@ gHC_PRIM, gHC_TYPES, gHC_BOOL, gHC_UNIT, gHC_ORDERING, gHC_GENERICS, gHC_CLASSES
 gHC_PRIM       = mkPrimModule (fsLit "GHC.Prim")   -- Primitive types and values
 gHC_TYPES       = mkPrimModule (fsLit "GHC.Types")
 gHC_UNIT       = mkPrimModule (fsLit "GHC.Unit")
-gHC_BOOL       = mkPrimModule (fsLit "GHC.Bool")
 gHC_ORDERING   = mkPrimModule (fsLit "GHC.Ordering")
 gHC_GENERICS   = mkPrimModule (fsLit "GHC.Generics")
+gHC_MAGIC      = mkPrimModule (fsLit "GHC.Magic")
 
 gHC_CLASSES    = mkBaseModule (fsLit "GHC.Classes")
 gHC_BASE       = mkBaseModule (fsLit "GHC.Base")
@@ -564,7 +571,7 @@ stringTyConName         = tcQual  gHC_BASE (fsLit "String") stringTyConKey
 
 -- The 'inline' function
 inlineIdName :: Name
-inlineIdName           = varQual gHC_BASE (fsLit "inline") inlineIdKey
+inlineIdName           = varQual gHC_MAGIC (fsLit "inline") inlineIdKey
 
 -- Base classes (Eq, Ord, Functor)
 eqClassName, eqName, ordClassName, geName, functorClassName :: Name
@@ -596,14 +603,15 @@ groupWithName = varQual gHC_EXTS (fsLit "groupWith") groupWithIdKey
 fromStringName, otherwiseIdName, foldrName, buildName, augmentName,
     mapName, appendName, assertName,
     breakpointName, breakpointCondName, breakpointAutoName,
-    opaqueTyConName :: Name
+    dollarName, opaqueTyConName :: Name
 fromStringName = methName dATA_STRING (fsLit "fromString") fromStringClassOpKey
 otherwiseIdName   = varQual gHC_BASE (fsLit "otherwise")  otherwiseIdKey
 foldrName        = varQual gHC_BASE (fsLit "foldr")      foldrIdKey
 buildName        = varQual gHC_BASE (fsLit "build")      buildIdKey
 augmentName      = varQual gHC_BASE (fsLit "augment")    augmentIdKey
-mapName       = varQual gHC_BASE (fsLit "map")        mapIdKey
+mapName           = varQual gHC_BASE (fsLit "map")        mapIdKey
 appendName       = varQual gHC_BASE (fsLit "++")         appendIdKey
+dollarName       = varQual gHC_BASE (fsLit "$")          dollarIdKey
 assertName        = varQual gHC_BASE (fsLit "assert")     assertIdKey
 breakpointName    = varQual gHC_BASE (fsLit "breakpoint") breakpointIdKey
 breakpointCondName= varQual gHC_BASE (fsLit "breakpointCond") breakpointCondIdKey
@@ -634,7 +642,7 @@ fstName, sndName :: Name
 fstName                  = varQual dATA_TUPLE (fsLit "fst") fstIdKey
 sndName                  = varQual dATA_TUPLE (fsLit "snd") sndIdKey
 
--- Module PrelNum
+-- Module GHC.Num
 numClassName, fromIntegerName, minusName, negateName, plusIntegerName,
     timesIntegerName,
     integerTyConName, smallIntegerName :: Name
@@ -647,10 +655,11 @@ timesIntegerName  = varQual  gHC_INTEGER (fsLit "timesInteger") timesIntegerIdKe
 integerTyConName  = tcQual   gHC_INTEGER_TYPE (fsLit "Integer") integerTyConKey
 smallIntegerName = varQual gHC_INTEGER (fsLit "smallInteger") smallIntegerIdKey
 
--- PrelReal types and classes
+-- GHC.Real types and classes
 rationalTyConName, ratioTyConName, ratioDataConName, realClassName,
     integralClassName, realFracClassName, fractionalClassName,
-    fromRationalName :: Name
+    fromRationalName, toIntegerName, toRationalName, fromIntegralName,
+    realToFracName :: Name
 rationalTyConName   = tcQual  gHC_REAL (fsLit "Rational") rationalTyConKey
 ratioTyConName     = tcQual  gHC_REAL (fsLit "Ratio") ratioTyConKey
 ratioDataConName    = conName gHC_REAL (fsLit ":%") ratioDataConKey
@@ -658,7 +667,11 @@ realClassName          = clsQual gHC_REAL (fsLit "Real") realClassKey
 integralClassName   = clsQual gHC_REAL (fsLit "Integral") integralClassKey
 realFracClassName   = clsQual gHC_REAL (fsLit "RealFrac") realFracClassKey
 fractionalClassName = clsQual gHC_REAL (fsLit "Fractional") fractionalClassKey
-fromRationalName    = methName gHC_REAL  (fsLit "fromRational") fromRationalClassOpKey
+fromRationalName    = methName gHC_REAL (fsLit "fromRational") fromRationalClassOpKey
+toIntegerName       = methName gHC_REAL (fsLit "toInteger") toIntegerClassOpKey
+toRationalName      = methName gHC_REAL (fsLit "toRational") toRationalClassOpKey
+fromIntegralName    = varQual  gHC_REAL (fsLit "fromIntegral") fromIntegralIdKey
+realToFracName      = varQual  gHC_REAL (fsLit "realToFrac") realToFracIdKey
 
 -- PrelFloat classes
 floatingClassName, realFloatClassName :: Name
@@ -1107,7 +1120,7 @@ rightDataConKey                           = mkPreludeDataConUnique 26
 
 \begin{code}
 absentErrorIdKey, augmentIdKey, appendIdKey, buildIdKey, errorIdKey,
-    foldlIdKey, foldrIdKey, recSelErrorIdKey,
+    foldlIdKey, foldrIdKey, recSelErrorIdKey, 
     integerMinusOneIdKey, integerPlusOneIdKey,
     integerPlusTwoIdKey, integerZeroIdKey,
     int2IntegerIdKey, seqIdKey, irrefutPatErrorIdKey, eqStringIdKey,
@@ -1196,9 +1209,10 @@ breakpointAutoJumpIdKey       = mkPreludeMiscIdUnique 67
 inlineIdKey :: Unique
 inlineIdKey                  = mkPreludeMiscIdUnique 68
 
-mapIdKey, groupWithIdKey :: Unique
-mapIdKey                     = mkPreludeMiscIdUnique 69
+mapIdKey, groupWithIdKey, dollarIdKey :: Unique
+mapIdKey             = mkPreludeMiscIdUnique 69
 groupWithIdKey        = mkPreludeMiscIdUnique 70
+dollarIdKey           = mkPreludeMiscIdUnique 71
 
 -- Parallel array functions
 singletonPIdKey, nullPIdKey, lengthPIdKey, replicatePIdKey, mapPIdKey,
@@ -1280,6 +1294,12 @@ fromStringClassOpKey           = mkPreludeMiscIdUnique 125
 toAnnotationWrapperIdKey :: Unique
 toAnnotationWrapperIdKey      = mkPreludeMiscIdUnique 126
 
+-- Conversion functions
+fromIntegralIdKey, realToFracIdKey, toIntegerClassOpKey, toRationalClassOpKey :: Unique
+fromIntegralIdKey    = mkPreludeMiscIdUnique 127
+realToFracIdKey      = mkPreludeMiscIdUnique 128
+toIntegerClassOpKey  = mkPreludeMiscIdUnique 129
+toRationalClassOpKey = mkPreludeMiscIdUnique 130
 
 ---------------- Template Haskell -------------------
 --     USES IdUniques 200-399