From: Rémy Oudompheng <oudomphe@phare.normalesup.org>
Date: Tue, 7 Jan 2014 17:25:11 +0000 (+0100)
Subject: cmd/gc: add missing dupok flag for interface method wrappers.
X-Git-Tag: go1.3beta1~1039
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=095de8795ab55184c2c0029a9609f9d114d27234;p=gostls13.git

cmd/gc: add missing dupok flag for interface method wrappers.

R=rsc
CC=golang-codereviews
https://golang.org/cl/48420044
---

diff --git a/src/cmd/gc/subr.c b/src/cmd/gc/subr.c
index f8e321c962..779580295f 100644
--- a/src/cmd/gc/subr.c
+++ b/src/cmd/gc/subr.c
@@ -2591,8 +2591,10 @@ genwrapper(Type *rcvr, Type *method, Sym *newnam, int iface)
 
 	funcbody(fn);
 	curfn = fn;
-	// wrappers where T is anonymous (struct{ NamedType }) can be duplicated.
-	if(rcvr->etype == TSTRUCT || isptr[rcvr->etype] && rcvr->type->etype == TSTRUCT)
+	// wrappers where T is anonymous (struct or interface) can be duplicated.
+	if(rcvr->etype == TSTRUCT ||
+		rcvr->etype == TINTER ||
+		isptr[rcvr->etype] && rcvr->type->etype == TSTRUCT)
 		fn->dupok = 1;
 	typecheck(&fn, Etop);
 	typechecklist(fn->nbody, Etop);