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-rw-r--r--src/cmd/gc/walk.c2
-rw-r--r--test/fixedbugs/issue8017.go26
2 files changed, 28 insertions, 0 deletions
diff --git a/src/cmd/gc/walk.c b/src/cmd/gc/walk.c
index ce0f3eb95..a30fa62a6 100644
--- a/src/cmd/gc/walk.c
+++ b/src/cmd/gc/walk.c
@@ -137,6 +137,8 @@ walkstmt(Node **np)
n = *np;
if(n == N)
return;
+ if(n->dodata == 2) // don't walk, generated by anylit.
+ return;
setlineno(n);
diff --git a/test/fixedbugs/issue8017.go b/test/fixedbugs/issue8017.go
new file mode 100644
index 000000000..22056e08c
--- /dev/null
+++ b/test/fixedbugs/issue8017.go
@@ -0,0 +1,26 @@
+// compile
+
+// Copyright 2014 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.
+
+// Issues 8017 and 8058: walk modifies nodes generated
+// by slicelit and causes an internal error afterwards
+// when gen_as_init parses it back.
+
+package main
+
+func F() {
+ var ch chan int
+ select {
+ case <-ch:
+ case <-make(chan int, len([2][]int{([][]int{})[len(ch)], []int{}})):
+ }
+}
+
+func G() {
+ select {
+ case <-([1][]chan int{[]chan int{}})[0][0]:
+ default:
+ }
+}