Initial commit: Go 1.23 release state

test/fixedbugs/issue23017.go

@@ -0,0 +1,113 @@
+// run
+
+// Copyright 2020 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.
+
+// assignment order in multiple assignments.
+// See issue #23017
+
+package main
+
+import "fmt"
+
+func main() {}
+
+func init() {
+	var m = map[int]int{}
+	var p *int
+
+	defer func() {
+		recover()
+		check(1, len(m))
+		check(42, m[2])
+	}()
+	m[2], *p = 42, 2
+}
+
+func init() {
+	var m = map[int]int{}
+	p := []int{}
+
+	defer func() {
+		recover()
+		check(1, len(m))
+		check(2, m[2])
+	}()
+	m[2], p[1] = 2, 2
+}
+
+func init() {
+	type P struct{ i int }
+	var m = map[int]int{}
+	var p *P
+
+	defer func() {
+		recover()
+		check(1, len(m))
+		check(3, m[2])
+	}()
+	m[2], p.i = 3, 2
+}
+
+func init() {
+	type T struct{ i int }
+	var x T
+	p := &x
+	p, p.i = new(T), 4
+	check(4, x.i)
+}
+
+func init() {
+	var m map[int]int
+	var a int
+	var p = &a
+
+	defer func() {
+		recover()
+		check(5, *p)
+	}()
+	*p, m[2] = 5, 2
+}
+
+var g int
+
+func init() {
+	var m map[int]int
+	defer func() {
+		recover()
+		check(0, g)
+	}()
+	m[0], g = 1, 2
+}
+
+func init() {
+	type T struct{ x struct{ y int } }
+	var x T
+	p := &x
+	p, p.x.y = new(T), 7
+	check(7, x.x.y)
+	check(0, p.x.y)
+}
+
+func init() {
+	type T *struct{ x struct{ y int } }
+	x := struct{ y int }{0}
+	var q T = &struct{ x struct{ y int } }{x}
+	p := q
+	p, p.x.y = nil, 7
+	check(7, q.x.y)
+}
+
+func init() {
+	x, y := 1, 2
+	x, y = y, x
+	check(2, x)
+	check(1, y)
+}
+
+func check(want, got int) {
+	if want != got {
+		panic(fmt.Sprintf("wanted %d, but got %d", want, got))
+	}
+}