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-rw-r--r--test/fixedbugs/bug491.go110
1 files changed, 110 insertions, 0 deletions
diff --git a/test/fixedbugs/bug491.go b/test/fixedbugs/bug491.go
new file mode 100644
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+++ b/test/fixedbugs/bug491.go
@@ -0,0 +1,110 @@
+// run
+
+// 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.
+
+// Test order of calls to builtin functions.
+// Discovered during CL 144530045 review.
+
+package main
+
+func main() {
+ // append
+ {
+ x := make([]int, 0)
+ f := func() int { x = make([]int, 2); return 2 }
+ a, b, c := append(x, 1), f(), append(x, 1)
+ if len(a) != 1 || len(c) != 3 {
+ bug()
+ println("append call not ordered:", len(a), b, len(c))
+ }
+ }
+
+ // cap
+ {
+ x := make([]int, 1)
+ f := func() int { x = make([]int, 3); return 2 }
+ a, b, c := cap(x), f(), cap(x)
+ if a != 1 || c != 3 {
+ bug()
+ println("cap call not ordered:", a, b, c)
+ }
+ }
+
+ // complex
+ {
+ x := 1.0
+ f := func() int { x = 3; return 2 }
+ a, b, c := complex(x, 0), f(), complex(x, 0)
+ if real(a) != 1 || real(c) != 3 {
+ bug()
+ println("complex call not ordered:", a, b, c)
+ }
+ }
+
+ // copy
+ {
+ tmp := make([]int, 100)
+ x := make([]int, 1)
+ f := func() int { x = make([]int, 3); return 2 }
+ a, b, c := copy(tmp, x), f(), copy(tmp, x)
+ if a != 1 || c != 3 {
+ bug()
+ println("copy call not ordered:", a, b, c)
+ }
+ }
+
+ // imag
+ {
+ x := 1i
+ f := func() int { x = 3i; return 2 }
+ a, b, c := imag(x), f(), imag(x)
+ if a != 1 || c != 3 {
+ bug()
+ println("imag call not ordered:", a, b, c)
+ }
+ }
+
+ // len
+ {
+ x := make([]int, 1)
+ f := func() int { x = make([]int, 3); return 2 }
+ a, b, c := len(x), f(), len(x)
+ if a != 1 || c != 3 {
+ bug()
+ println("len call not ordered:", a, b, c)
+ }
+ }
+
+ // make
+ {
+ x := 1
+ f := func() int { x = 3; return 2 }
+ a, b, c := make([]int, x), f(), make([]int, x)
+ if len(a) != 1 || len(c) != 3 {
+ bug()
+ println("make call not ordered:", len(a), b, len(c))
+ }
+ }
+
+ // real
+ {
+ x := 1 + 0i
+ f := func() int { x = 3; return 2 }
+ a, b, c := real(x), f(), real(x)
+ if a != 1 || c != 3 {
+ bug()
+ println("real call not ordered:", a, b, c)
+ }
+ }
+}
+
+var bugged = false
+
+func bug() {
+ if !bugged {
+ println("BUG")
+ bugged = true
+ }
+} \ No newline at end of file