diff options
| -rw-r--r-- | src/cmd/gc/range.c | 4 | ||||
| -rw-r--r-- | test/chan/perm.go | 5 |
2 files changed, 8 insertions, 1 deletions
diff --git a/src/cmd/gc/range.c b/src/cmd/gc/range.c index 1909c9ec7..25d1131ec 100644 --- a/src/cmd/gc/range.c +++ b/src/cmd/gc/range.c @@ -46,6 +46,10 @@ typecheckrange(Node *n) break; case TCHAN: + if(!(t->chan & Crecv)) { + yyerror("invalid operation: range %N (receive from send-only type %T)", n->right, n->right->type); + goto out; + } t1 = t->type; t2 = nil; if(count(n->list) == 2) diff --git a/test/chan/perm.go b/test/chan/perm.go index af054450e..a43df1982 100644 --- a/test/chan/perm.go +++ b/test/chan/perm.go @@ -48,7 +48,10 @@ func main() { case x := <-cs: // ERROR "receive" _ = x } - + + for _ = range cs {// ERROR "receive" + } + close(c) close(cs) close(cr) // ERROR "receive" |