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-rw-r--r--test/fixedbugs/issue43111.go70
1 files changed, 70 insertions, 0 deletions
diff --git a/test/fixedbugs/issue43111.go b/test/fixedbugs/issue43111.go
new file mode 100644
index 0000000..76d7beb
--- /dev/null
+++ b/test/fixedbugs/issue43111.go
@@ -0,0 +1,70 @@
+// run
+
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+var ch chan int
+var x int
+
+func f() int {
+ close(ch)
+ ch = nil
+ return 0
+}
+
+func g() int {
+ ch = nil
+ x = 0
+ return 0
+}
+
+func main() {
+ var nilch chan int
+ var v int
+ var ok bool
+ _, _ = v, ok
+
+ ch = make(chan int)
+ select {
+ case <-ch:
+ case nilch <- f():
+ }
+
+ ch = make(chan int)
+ select {
+ case v = <-ch:
+ case nilch <- f():
+ }
+
+ ch = make(chan int)
+ select {
+ case v := <-ch: _ = v
+ case nilch <- f():
+ }
+
+ ch = make(chan int)
+ select {
+ case v, ok = <-ch:
+ case nilch <- f():
+ }
+
+ ch = make(chan int)
+ select {
+ case v, ok := <-ch: _, _ = v, ok
+ case nilch <- f():
+ }
+
+ ch1 := make(chan int, 1)
+ ch = ch1
+ x = 42
+ select {
+ case ch <- x:
+ case nilch <- g():
+ }
+ if got := <-ch1; got != 42 {
+ panic(got)
+ }
+}