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-rw-r--r--test/escape_selfassign.go32
1 files changed, 32 insertions, 0 deletions
diff --git a/test/escape_selfassign.go b/test/escape_selfassign.go
new file mode 100644
index 0000000..b4fa208
--- /dev/null
+++ b/test/escape_selfassign.go
@@ -0,0 +1,32 @@
+// errorcheck -0 -m -l
+
+// Copyright 2019 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 escape analysis for self assignments.
+
+package escape
+
+type S struct {
+ i int
+ pi *int
+}
+
+var sink S
+
+func f(p *S) { // ERROR "leaking param: p"
+ p.pi = &p.i
+ sink = *p
+}
+
+// BAD: "leaking param: p" is too conservative
+func g(p *S) { // ERROR "leaking param: p"
+ p.pi = &p.i
+}
+
+func h() {
+ var s S // ERROR "moved to heap: s"
+ g(&s)
+ sink = s
+}