From: Russ Cox <rsc@golang.org>
Date: Thu, 7 Oct 2010 07:33:42 +0000 (-0400)
Subject: gc: fix error for 1 <- "foo"
X-Git-Tag: weekly.2010-10-13~53
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=42c26b734cf8cf148cf08ae30bf1e05a29bc8851;p=gostls13.git

gc: fix error for 1 <- "foo"

was
x.go:4: invalid operation: 1 <- "foo" (send to receive-only type int)

now
x.go:4: invalid operation: 1 <- "foo" (send to non-chan type int)

R=ken2
CC=golang-dev
https://golang.org/cl/2330042
---

diff --git a/src/cmd/gc/typecheck.c b/src/cmd/gc/typecheck.c
index bb4571d9ff..f139ee8210 100644
--- a/src/cmd/gc/typecheck.c
+++ b/src/cmd/gc/typecheck.c
@@ -644,6 +644,10 @@ reswitch:
 		l = n->left;
 		if((t = l->type) == T)
 			goto error;
+		if(t->etype != TCHAN) {
+			yyerror("invalid operation: %#N (send to non-chan type %T)", n, t);
+			goto error;
+		}
 		if(!(t->chan & Csend)) {
 			yyerror("invalid operation: %#N (send to receive-only type %T)", n, t);
 			goto error;