Initial commit: Go 1.23 release state

test/escape_struct_return.go

@@ -0,0 +1,74 @@
+// errorcheck -0 -m -l
+
+// Copyright 2015 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 function parameters.
+
+package foo
+
+var Ssink *string
+
+type U struct {
+	_sp  *string
+	_spp **string
+}
+
+func A(sp *string, spp **string) U { // ERROR "leaking param: sp to result ~r0 level=0$" "leaking param: spp to result ~r0 level=0$"
+	return U{sp, spp}
+}
+
+func B(spp **string) U { // ERROR "leaking param: spp to result ~r0 level=0$"
+	return U{*spp, spp}
+}
+
+func tA1() {
+	s := "cat"
+	sp := &s
+	spp := &sp
+	u := A(sp, spp)
+	_ = u
+	println(s)
+}
+
+func tA2() {
+	s := "cat"
+	sp := &s
+	spp := &sp
+	u := A(sp, spp)
+	println(*u._sp)
+}
+
+func tA3() {
+	s := "cat"
+	sp := &s
+	spp := &sp
+	u := A(sp, spp)
+	println(**u._spp)
+}
+
+func tB1() {
+	s := "cat"
+	sp := &s
+	spp := &sp
+	u := B(spp)
+	_ = u
+	println(s)
+}
+
+func tB2() {
+	s := "cat"
+	sp := &s
+	spp := &sp
+	u := B(spp)
+	println(*u._sp)
+}
+
+func tB3() {
+	s := "cat"
+	sp := &s
+	spp := &sp
+	u := B(spp)
+	println(**u._spp)
+}