go sliceopt 源码
golang sliceopt 代码
文件路径：/test/sliceopt.go
// errorcheck -0 -d=append,slice
// 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.
// Check optimization results for append and slicing.
package main
func a1(x []int, y int) []int {
x = append(x, y) // ERROR "append: len-only update \(in local slice\)$"
return x
}
func a2(x []int, y int) []int {
return append(x, y)
}
func a3(x *[]int, y int) {
*x = append(*x, y) // ERROR "append: len-only update$"
}
func s1(x **[]int, xs **string, i, j int) {
var z []int
z = (**x)[0:] // ERROR "slice: omit slice operation$"
println(z)
var zs string
zs = (**xs)[0:] // ERROR "slice: omit slice operation$"
println(zs)
}
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