From 109be507377fe7f6e8819ac94041d3fdcdf6fd2f Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:18:25 +0200 Subject: Adding upstream version 1.19.8. Signed-off-by: Daniel Baumann --- test/fixedbugs/issue23188.go | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 test/fixedbugs/issue23188.go (limited to 'test/fixedbugs/issue23188.go') diff --git a/test/fixedbugs/issue23188.go b/test/fixedbugs/issue23188.go new file mode 100644 index 0000000..c224340 --- /dev/null +++ b/test/fixedbugs/issue23188.go @@ -0,0 +1,32 @@ +// run + +// Copyright 2018 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 evaluation of index operations. + +package main + +func main() { + arr := []int{1, 2} + + // The spec says that in an assignment statement the operands + // of all index expressions and pointer indirections on the + // left, and the expressions on the right, are evaluated in + // the usual order. The usual order means function calls and + // channel operations are done first. Then the assignments are + // carried out one at a time. The operands of an index + // expression include both the array and the index. So this + // evaluates as + // tmp1 := arr + // tmp2 := len(arr) - 1 + // tmp3 := len(arr) + // arr = arr[:tmp3-1] + // tmp1[tmp2] = 3 + arr, arr[len(arr)-1] = arr[:len(arr)-1], 3 + + if len(arr) != 1 || arr[0] != 1 || arr[:2][1] != 3 { + panic(arr) + } +} -- cgit v1.2.3