X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcoreSyn%2FCoreSyn.lhs;h=3db1a33b93fa36779301d3f7e2cfc2f9f222d039;hb=5e0ea427646a5474dd7c659b0713c6a62d8c99c7;hp=f83845f3f5b26fd35074854fef8745aca6a04ade;hpb=afbc90b056b31768e243f3b4900034aec1c6b706;p=ghc-hetmet.git

diff --git a/compiler/coreSyn/CoreSyn.lhs b/compiler/coreSyn/CoreSyn.lhs
index f83845f..3db1a33 100644
--- a/compiler/coreSyn/CoreSyn.lhs
+++ b/compiler/coreSyn/CoreSyn.lhs
@@ -50,11 +50,13 @@ import StaticFlags	( opt_RuntimeTypes )
 import CostCentre	( CostCentre, noCostCentre )
 import Var		( Var, Id, TyVar, isTyVar, isId )
 import Type		( Type, mkTyVarTy, seqType )
+import TyCon            ( isNewTyCon )
 import Coercion         ( Coercion )
 import Name		( Name )
 import OccName		( OccName )
 import Literal	        ( Literal, mkMachInt )
-import DataCon		( DataCon, dataConWorkId, dataConTag )
+import DataCon		( DataCon, dataConWorkId, dataConTag, dataConTyCon,
+                          dataConWrapId )
 import BasicTypes	( Activation )
 import FastString
 import Outputable
@@ -112,7 +114,8 @@ type Arg b = Expr b		-- Can be a Type
 
 type Alt b = (AltCon, [b], Expr b)	-- (DEFAULT, [], rhs) is the default alternative
 
-data AltCon = DataAlt DataCon
+data AltCon = DataAlt DataCon	-- Invariant: the DataCon is always from 
+				-- a *data* type, and never from a *newtype*
 	    | LitAlt  Literal
 	    | DEFAULT
 	 deriving (Eq, Ord)
@@ -439,7 +442,7 @@ mkLets	      :: [Bind b] -> Expr b -> Expr b
 mkLams	      :: [b] -> Expr b -> Expr b
 
 mkLit lit	  = Lit lit
-mkConApp con args = pprTrace "mkConApp" (ppr con) $ mkApps (Var (dataConWorkId con)) args
+mkConApp con args = mkApps (Var (dataConWorkId con)) args
 
 mkLams binders body = foldr Lam body binders
 mkLets binds body   = foldr Let body binds