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-rw-r--r--test/fixedbugs/issue4620.go21
1 files changed, 21 insertions, 0 deletions
diff --git a/test/fixedbugs/issue4620.go b/test/fixedbugs/issue4620.go
new file mode 100644
index 0000000..5aa2908
--- /dev/null
+++ b/test/fixedbugs/issue4620.go
@@ -0,0 +1,21 @@
+// run
+
+// Copyright 2013 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.
+
+// Issue 4620: map indexes are not evaluated before assignment of other elements
+
+package main
+
+import "fmt"
+
+func main() {
+ m := map[int]int{0:1}
+ i := 0
+ i, m[i] = 1, 2
+ if m[0] != 2 {
+ fmt.Println(m)
+ panic("m[i] != 2")
+ }
+}