mirror of
https://github.com/golang/go
synced 2024-11-25 06:07:58 -07:00
b4e92cee97
Design doc at golang.org/s/go12slice. This is an experimental feature and may not be included in the release. R=golang-dev, r CC=golang-dev https://golang.org/cl/10743046
122 lines
4.4 KiB
Go
122 lines
4.4 KiB
Go
// errorcheck
|
|
|
|
// Copyright 2013 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.
|
|
|
|
package p
|
|
|
|
var array *[10]int
|
|
var slice []int
|
|
var str string
|
|
var i, j, k int
|
|
|
|
func f() {
|
|
// check what missing arguments are allowed
|
|
_ = array[:]
|
|
_ = array[i:]
|
|
_ = array[:j]
|
|
_ = array[i:j]
|
|
_ = array[::] // ERROR "middle index required in 3-index slice" "final index required in 3-index slice"
|
|
_ = array[i::] // ERROR "middle index required in 3-index slice" "final index required in 3-index slice"
|
|
_ = array[:j:] // ERROR "final index required in 3-index slice"
|
|
_ = array[i:j:] // ERROR "final index required in 3-index slice"
|
|
_ = array[::k] // ERROR "middle index required in 3-index slice"
|
|
_ = array[i::k] // ERROR "middle index required in 3-index slice"
|
|
_ = array[:j:k]
|
|
_ = array[i:j:k]
|
|
|
|
_ = slice[:]
|
|
_ = slice[i:]
|
|
_ = slice[:j]
|
|
_ = slice[i:j]
|
|
_ = slice[::] // ERROR "middle index required in 3-index slice" "final index required in 3-index slice"
|
|
_ = slice[i::] // ERROR "middle index required in 3-index slice" "final index required in 3-index slice"
|
|
_ = slice[:j:] // ERROR "final index required in 3-index slice"
|
|
_ = slice[i:j:] // ERROR "final index required in 3-index slice"
|
|
_ = slice[::k] // ERROR "middle index required in 3-index slice"
|
|
_ = slice[i::k] // ERROR "middle index required in 3-index slice"
|
|
_ = slice[:j:k]
|
|
_ = slice[i:j:k]
|
|
|
|
_ = str[:]
|
|
_ = str[i:]
|
|
_ = str[:j]
|
|
_ = str[i:j]
|
|
_ = str[::] // ERROR "3-index slice of string" "middle index required in 3-index slice" "final index required in 3-index slice"
|
|
_ = str[i::] // ERROR "3-index slice of string" "middle index required in 3-index slice" "final index required in 3-index slice"
|
|
_ = str[:j:] // ERROR "3-index slice of string" "final index required in 3-index slice"
|
|
_ = str[i:j:] // ERROR "3-index slice of string" "final index required in 3-index slice"
|
|
_ = str[::k] // ERROR "3-index slice of string" "middle index required in 3-index slice"
|
|
_ = str[i::k] // ERROR "3-index slice of string" "middle index required in 3-index slice"
|
|
_ = str[:j:k] // ERROR "3-index slice of string"
|
|
_ = str[i:j:k] // ERROR "3-index slice of string"
|
|
|
|
// check invalid indices
|
|
_ = array[1:2]
|
|
_ = array[2:1] // ERROR "invalid slice index"
|
|
_ = array[2:2]
|
|
_ = array[i:1]
|
|
_ = array[1:j]
|
|
_ = array[1:2:3]
|
|
_ = array[1:3:2] // ERROR "invalid slice index"
|
|
_ = array[2:1:3] // ERROR "invalid slice index"
|
|
_ = array[2:3:1] // ERROR "invalid slice index"
|
|
_ = array[3:1:2] // ERROR "invalid slice index"
|
|
_ = array[3:2:1] // ERROR "invalid slice index"
|
|
_ = array[i:1:2]
|
|
_ = array[i:2:1] // ERROR "invalid slice index"
|
|
_ = array[1:j:2]
|
|
_ = array[2:j:1] // ERROR "invalid slice index"
|
|
_ = array[1:2:k]
|
|
_ = array[2:1:k] // ERROR "invalid slice index"
|
|
|
|
_ = slice[1:2]
|
|
_ = slice[2:1] // ERROR "invalid slice index"
|
|
_ = slice[2:2]
|
|
_ = slice[i:1]
|
|
_ = slice[1:j]
|
|
_ = slice[1:2:3]
|
|
_ = slice[1:3:2] // ERROR "invalid slice index"
|
|
_ = slice[2:1:3] // ERROR "invalid slice index"
|
|
_ = slice[2:3:1] // ERROR "invalid slice index"
|
|
_ = slice[3:1:2] // ERROR "invalid slice index"
|
|
_ = slice[3:2:1] // ERROR "invalid slice index"
|
|
_ = slice[i:1:2]
|
|
_ = slice[i:2:1] // ERROR "invalid slice index"
|
|
_ = slice[1:j:2]
|
|
_ = slice[2:j:1] // ERROR "invalid slice index"
|
|
_ = slice[1:2:k]
|
|
_ = slice[2:1:k] // ERROR "invalid slice index"
|
|
|
|
_ = str[1:2]
|
|
_ = str[2:1] // ERROR "invalid slice index"
|
|
_ = str[2:2]
|
|
_ = str[i:1]
|
|
_ = str[1:j]
|
|
|
|
// check out of bounds indices on array
|
|
_ = array[11:11] // ERROR "out of bounds for 10-element array"
|
|
_ = array[11:12] // ERROR "out of bounds for 10-element array"
|
|
_ = array[11:] // ERROR "out of bounds for 10-element array"
|
|
_ = array[:11] // ERROR "out of bounds for 10-element array"
|
|
_ = array[1:11] // ERROR "out of bounds for 10-element array"
|
|
_ = array[1:11:12] // ERROR "out of bounds for 10-element array"
|
|
_ = array[1:2:11] // ERROR "out of bounds for 10-element array"
|
|
_ = array[1:11:3] // ERROR "out of bounds for 10-element array"
|
|
_ = array[11:2:3] // ERROR "out of bounds for 10-element array"
|
|
_ = array[11:12:13] // ERROR "out of bounds for 10-element array"
|
|
|
|
// slice bounds not checked
|
|
_ = slice[11:11]
|
|
_ = slice[11:12]
|
|
_ = slice[11:]
|
|
_ = slice[:11]
|
|
_ = slice[1:11]
|
|
_ = slice[1:11:12]
|
|
_ = slice[1:2:11]
|
|
_ = slice[1:11:3] // ERROR "invalid slice index"
|
|
_ = slice[11:2:3] // ERROR "invalid slice index"
|
|
_ = slice[11:12:13]
|
|
}
|