blob: 67d07523b41d8cef1bfac362b7c1fceaf8c65ea2 [file] [log] [blame]
 // \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out // Copyright 2011 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. // Check reordering of assignments. package main import "fmt" func main() { p1() p2() p3() p4() p5() p6() p7() p8() } var gx []int func f(i int) int { return gx[i] } func check(x []int, x0, x1, x2 int) { if x[0] != x0 || x[1] != x1 || x[2] != x2 { fmt.Printf("%v, want %d,%d,%d\n", x, x0, x1, x2) panic("failed") } } func check3(x, y, z, xx, yy, zz int) { if x != xx || y != yy || z != zz { fmt.Printf("%d,%d,%d, want %d,%d,%d\n", x, y, z, xx, yy, zz) panic("failed") } } func p1() { x := []int{1,2,3} i := 0 i, x[i] = 1, 100 _ = i check(x, 100, 2, 3) } func p2() { x := []int{1,2,3} i := 0 x[i], i = 100, 1 _ = i check(x, 100, 2, 3) } func p3() { x := []int{1,2,3} y := x gx = x x[1], y[0] = f(0), f(1) check(x, 2, 1, 3) } func p4() { x := []int{1,2,3} y := x gx = x x[1], y[0] = gx[0], gx[1] check(x, 2, 1, 3) } func p5() { x := []int{1,2,3} y := x p := &x[0] q := &x[1] *p, *q = x[1], y[0] check(x, 2, 1, 3) } func p6() { x := 1 y := 2 z := 3 px := &x py := &y *px, *py = y, x check3(x, y, z, 2, 1, 3) } func f1(x, y, z int) (xx, yy, zz int) { return x, y, z } func f2() (x, y, z int) { return f1(2, 1, 3) } func p7() { x, y, z := f2() check3(x, y, z, 2, 1, 3) } func p8() { x := []int{1,2,3} defer func() { err := recover() if err == nil { panic("not panicking") } check(x, 100, 2, 3) }() i := 0 i, x[i], x[5] = 1, 100, 500 }