X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcoreSyn%2FExternalCore.lhs;h=07a1dfbd8ee1b8bcc7f48a41d2be7ba071425d1d;hb=14a496fd0b3aa821b69eb02736d5f41086576761;hp=44f4e8c76662620e4d215bfd79f510b8a2dc6ccb;hpb=7fc749a43b4b6b85d234fa95d4928648259584f4;p=ghc-hetmet.git

diff --git a/compiler/coreSyn/ExternalCore.lhs b/compiler/coreSyn/ExternalCore.lhs
index 44f4e8c..07a1dfb 100644
--- a/compiler/coreSyn/ExternalCore.lhs
+++ b/compiler/coreSyn/ExternalCore.lhs
@@ -2,13 +2,6 @@
 % (c) The University of Glasgow 2001-2006
 %
 \begin{code}
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
---     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
--- for details
-
 module ExternalCore where
 
 
@@ -17,17 +10,19 @@ data Module
 
 data Tdef 
   = Data (Qual Tcon) [Tbind] [Cdef]
-  | Newtype (Qual Tcon) [Tbind] (Maybe Ty)
+  | Newtype (Qual Tcon) (Qual Tcon) [Tbind] Ty
 
 data Cdef 
-  = Constr Dcon [Tbind] [Ty]
-  | GadtConstr Dcon Ty
+  = Constr (Qual Dcon) [Tbind] [Ty]
+  | GadtConstr (Qual Dcon) Ty
 
 data Vdefg 
   = Rec [Vdef]
   | Nonrec Vdef
 
-type Vdef = (Bool,Var,Ty,Exp) 	-- Top level bindings are unqualified now
+-- Top-level bindings are qualified, so that the printer doesn't have to pass
+-- around the module name.
+type Vdef = (Bool,Qual Var,Ty,Exp)
 
 data Exp 
   = Var (Qual Var)
@@ -61,6 +56,16 @@ data Ty
   | Tcon (Qual Tcon)
   | Tapp Ty Ty
   | Tforall Tbind Ty 
+-- We distinguish primitive coercions
+-- (represented in GHC by wired-in names), because
+-- External Core treats them specially, so we have
+-- to print them out with special syntax.
+  | TransCoercion Ty Ty
+  | SymCoercion Ty
+  | UnsafeCoercion Ty Ty
+  | InstCoercion Ty Ty
+  | LeftCoercion Ty
+  | RightCoercion Ty
 
 data Kind 
   = Klifted
@@ -87,7 +92,10 @@ type Qual t = (Mname,t)
 
 type Id = String
 
-primMname = "base:GHC.Prim"
+primMname :: Mname
+-- For truly horrible reasons, this must be z-encoded.
+-- With any hope, the z-encoding will die soon.
+primMname = "ghczmprim:GHCziPrim"
 
 tcArrow :: Qual Tcon
 tcArrow = (primMname, "(->)")