Change syntax for qualified names in External Core

[ghc-hetmet.git] / compiler / coreSyn / PprExternalCore.lhs

diff --git a/compiler/coreSyn/PprExternalCore.lhs b/compiler/coreSyn/PprExternalCore.lhs
index 22449df..c58144c 100644 (file)
--- a/compiler/coreSyn/PprExternalCore.lhs
+++ b/compiler/coreSyn/PprExternalCore.lhs
@@ -80,7 +80,10 @@ pname id = text (zEncodeString id)
 
 pqname :: Qual Id -> Doc
 pqname ("",id) = pname id
-pqname (m,id)  = text m <> char '.' <> pname id
+-- We print out a special character before a qualified name so as to
+-- disambiguate unqualified names like "m" from qualified names like
+-- "m:Foo.Bar.y". This makes the ext-core parser easier.
+pqname (m,id)  = char '^' <> text m <> char '.' <> pname id
 
 ptbind, pattbind :: Tbind -> Doc
 ptbind (t,Klifted) = pname t