X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FhsSyn%2FHsUtils.lhs;h=5d7132ec74399dccfd54752de134ba4f18b925b6;hp=da0e24c6c107de650f6fdb75e29a8c4f8af5526d;hb=190f24892156953d73b55401d0467a6f1a88ce5d;hpb=aa8e9422469f1ccb3c52444fa56aae34de799334

diff --git a/compiler/hsSyn/HsUtils.lhs b/compiler/hsSyn/HsUtils.lhs
index da0e24c..5d7132e 100644
--- a/compiler/hsSyn/HsUtils.lhs
+++ b/compiler/hsSyn/HsUtils.lhs
@@ -22,6 +22,7 @@ import HsExpr
 import HsPat
 import HsTypes	
 import HsLit
+import HsDecls
 
 import RdrName		( RdrName, getRdrName, mkRdrUnqual )
 import Var		( Id )
@@ -416,3 +417,21 @@ collect_pat (TuplePat pats _ _) acc = foldr collect_lpat acc pats
 collect_pat (ConPatIn c ps)     acc = foldr collect_lpat acc (hsConArgs ps)
 collect_pat other	        acc = acc 	-- Literals, vars, wildcard
 \end{code}
+
+%************************************************************************
+%*									*
+%* 	Getting the main binder name of a top declaration
+%*									*
+%************************************************************************
+
+\begin{code}
+
+getMainDeclBinder :: HsDecl name -> Maybe name
+getMainDeclBinder (TyClD d) = Just (tcdName d)
+getMainDeclBinder (ValD d) = Just ((unLoc . head) (collectAcc d []))
+getMainDeclBinder (SigD d) = sigNameNoLoc d
+getMainDeclBinder (ForD (ForeignImport name _ _)) = Just (unLoc name)
+getMainDeclBinder (ForD (ForeignExport name _ _)) = Just (unLoc name)
+getMainDeclBinder _ = Nothing
+
+\end{code}