| Russ Cox | b4e92ce | 2013-07-01 20:32:36 -0400 | [diff] [blame] | 1 | // errorcheck |
| 2 | |
| 3 | // Copyright 2013 The Go Authors. All rights reserved. |
| 4 | // Use of this source code is governed by a BSD-style |
| 5 | // license that can be found in the LICENSE file. |
| 6 | |
| 7 | package p |
| 8 | |
| 9 | var array *[10]int |
| 10 | var slice []int |
| 11 | var str string |
| 12 | var i, j, k int |
| 13 | |
| 14 | func f() { |
| 15 | // check what missing arguments are allowed |
| 16 | _ = array[:] |
| 17 | _ = array[i:] |
| 18 | _ = array[:j] |
| 19 | _ = array[i:j] |
| 20 | _ = array[::] // ERROR "middle index required in 3-index slice" "final index required in 3-index slice" |
| 21 | _ = array[i::] // ERROR "middle index required in 3-index slice" "final index required in 3-index slice" |
| 22 | _ = array[:j:] // ERROR "final index required in 3-index slice" |
| Rob Pike | a8fe176 | 2013-08-19 12:05:33 +1000 | [diff] [blame^] | 23 | _ = array[i:j:] // ERROR "final index required in 3-index slice" |
| Russ Cox | b4e92ce | 2013-07-01 20:32:36 -0400 | [diff] [blame] | 24 | _ = array[::k] // ERROR "middle index required in 3-index slice" |
| 25 | _ = array[i::k] // ERROR "middle index required in 3-index slice" |
| 26 | _ = array[:j:k] |
| 27 | _ = array[i:j:k] |
| 28 | |
| 29 | _ = slice[:] |
| 30 | _ = slice[i:] |
| 31 | _ = slice[:j] |
| 32 | _ = slice[i:j] |
| 33 | _ = slice[::] // ERROR "middle index required in 3-index slice" "final index required in 3-index slice" |
| 34 | _ = slice[i::] // ERROR "middle index required in 3-index slice" "final index required in 3-index slice" |
| 35 | _ = slice[:j:] // ERROR "final index required in 3-index slice" |
| 36 | _ = slice[i:j:] // ERROR "final index required in 3-index slice" |
| 37 | _ = slice[::k] // ERROR "middle index required in 3-index slice" |
| 38 | _ = slice[i::k] // ERROR "middle index required in 3-index slice" |
| 39 | _ = slice[:j:k] |
| 40 | _ = slice[i:j:k] |
| 41 | |
| 42 | _ = str[:] |
| 43 | _ = str[i:] |
| 44 | _ = str[:j] |
| 45 | _ = str[i:j] |
| 46 | _ = str[::] // ERROR "3-index slice of string" "middle index required in 3-index slice" "final index required in 3-index slice" |
| 47 | _ = str[i::] // ERROR "3-index slice of string" "middle index required in 3-index slice" "final index required in 3-index slice" |
| 48 | _ = str[:j:] // ERROR "3-index slice of string" "final index required in 3-index slice" |
| 49 | _ = str[i:j:] // ERROR "3-index slice of string" "final index required in 3-index slice" |
| 50 | _ = str[::k] // ERROR "3-index slice of string" "middle index required in 3-index slice" |
| 51 | _ = str[i::k] // ERROR "3-index slice of string" "middle index required in 3-index slice" |
| 52 | _ = str[:j:k] // ERROR "3-index slice of string" |
| 53 | _ = str[i:j:k] // ERROR "3-index slice of string" |
| 54 | |
| 55 | // check invalid indices |
| 56 | _ = array[1:2] |
| 57 | _ = array[2:1] // ERROR "invalid slice index" |
| 58 | _ = array[2:2] |
| 59 | _ = array[i:1] |
| 60 | _ = array[1:j] |
| 61 | _ = array[1:2:3] |
| 62 | _ = array[1:3:2] // ERROR "invalid slice index" |
| 63 | _ = array[2:1:3] // ERROR "invalid slice index" |
| 64 | _ = array[2:3:1] // ERROR "invalid slice index" |
| 65 | _ = array[3:1:2] // ERROR "invalid slice index" |
| 66 | _ = array[3:2:1] // ERROR "invalid slice index" |
| 67 | _ = array[i:1:2] |
| 68 | _ = array[i:2:1] // ERROR "invalid slice index" |
| 69 | _ = array[1:j:2] |
| 70 | _ = array[2:j:1] // ERROR "invalid slice index" |
| 71 | _ = array[1:2:k] |
| 72 | _ = array[2:1:k] // ERROR "invalid slice index" |
| 73 | |
| 74 | _ = slice[1:2] |
| 75 | _ = slice[2:1] // ERROR "invalid slice index" |
| 76 | _ = slice[2:2] |
| 77 | _ = slice[i:1] |
| 78 | _ = slice[1:j] |
| 79 | _ = slice[1:2:3] |
| 80 | _ = slice[1:3:2] // ERROR "invalid slice index" |
| 81 | _ = slice[2:1:3] // ERROR "invalid slice index" |
| 82 | _ = slice[2:3:1] // ERROR "invalid slice index" |
| 83 | _ = slice[3:1:2] // ERROR "invalid slice index" |
| 84 | _ = slice[3:2:1] // ERROR "invalid slice index" |
| 85 | _ = slice[i:1:2] |
| 86 | _ = slice[i:2:1] // ERROR "invalid slice index" |
| 87 | _ = slice[1:j:2] |
| 88 | _ = slice[2:j:1] // ERROR "invalid slice index" |
| 89 | _ = slice[1:2:k] |
| 90 | _ = slice[2:1:k] // ERROR "invalid slice index" |
| 91 | |
| 92 | _ = str[1:2] |
| 93 | _ = str[2:1] // ERROR "invalid slice index" |
| 94 | _ = str[2:2] |
| 95 | _ = str[i:1] |
| 96 | _ = str[1:j] |
| 97 | |
| 98 | // check out of bounds indices on array |
| 99 | _ = array[11:11] // ERROR "out of bounds for 10-element array" |
| 100 | _ = array[11:12] // ERROR "out of bounds for 10-element array" |
| 101 | _ = array[11:] // ERROR "out of bounds for 10-element array" |
| 102 | _ = array[:11] // ERROR "out of bounds for 10-element array" |
| 103 | _ = array[1:11] // ERROR "out of bounds for 10-element array" |
| 104 | _ = array[1:11:12] // ERROR "out of bounds for 10-element array" |
| 105 | _ = array[1:2:11] // ERROR "out of bounds for 10-element array" |
| 106 | _ = array[1:11:3] // ERROR "out of bounds for 10-element array" |
| 107 | _ = array[11:2:3] // ERROR "out of bounds for 10-element array" |
| 108 | _ = array[11:12:13] // ERROR "out of bounds for 10-element array" |
| 109 | |
| 110 | // slice bounds not checked |
| 111 | _ = slice[11:11] |
| 112 | _ = slice[11:12] |
| 113 | _ = slice[11:] |
| 114 | _ = slice[:11] |
| 115 | _ = slice[1:11] |
| 116 | _ = slice[1:11:12] |
| 117 | _ = slice[1:2:11] |
| 118 | _ = slice[1:11:3] // ERROR "invalid slice index" |
| 119 | _ = slice[11:2:3] // ERROR "invalid slice index" |
| 120 | _ = slice[11:12:13] |
| 121 | } |
