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-rw-r--r--test/fixedbugs/issue28078.go34
1 files changed, 34 insertions, 0 deletions
diff --git a/test/fixedbugs/issue28078.go b/test/fixedbugs/issue28078.go
new file mode 100644
index 0000000..2e4c4b5
--- /dev/null
+++ b/test/fixedbugs/issue28078.go
@@ -0,0 +1,34 @@
+// compile
+
+// Copyright 2018 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.
+
+// Non-constant duplicate keys/cases should not be reported
+// as errors by the compiler.
+
+package p
+
+import "unsafe"
+
+func f() {
+ _ = map[uintptr]int{
+ 0: 0,
+ uintptr(unsafe.Pointer(nil)): 0,
+ }
+
+ switch uintptr(0) {
+ case 0:
+ case uintptr(unsafe.Pointer(nil)):
+ }
+
+ switch interface{}(nil) {
+ case nil:
+ case nil:
+ }
+
+ _ = map[interface{}]int{
+ nil: 0,
+ nil: 0,
+ }
+}