2020-09-16 05:13:50 -06:00
|
|
|
// errorcheck
|
|
|
|
|
|
|
|
// Copyright 2020 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 "cannot assign" errors
|
|
|
|
|
|
|
|
package main
|
|
|
|
|
|
|
|
func main() {
|
|
|
|
var s string = "hello"
|
2020-11-30 22:38:49 -07:00
|
|
|
s[1:2] = "a" // ERROR "cannot assign to .* (\(strings are immutable\))?"
|
|
|
|
s[3] = "b" // ERROR "cannot assign to .* (\(strings are immutable\))?"
|
2020-09-16 05:13:50 -06:00
|
|
|
|
|
|
|
const n int = 1
|
|
|
|
const cs string = "hello"
|
2020-11-30 22:38:49 -07:00
|
|
|
n = 2 // ERROR "cannot assign to .* (\(declared const\))?"
|
|
|
|
cs = "hi" // ERROR "cannot assign to .* (\(declared const\))?"
|
|
|
|
true = false // ERROR "cannot assign to .* (\(declared const\))?"
|
2020-09-16 05:13:50 -06:00
|
|
|
|
|
|
|
var m map[int]struct{ n int }
|
|
|
|
m[0].n = 7 // ERROR "cannot assign to struct field .* in map$"
|
|
|
|
|
2020-11-30 22:38:49 -07:00
|
|
|
1 = 7 // ERROR "cannot assign to 1"
|
|
|
|
"hi" = 7 // ERROR `cannot assign to "hi"`
|
|
|
|
nil = 7 // ERROR "cannot assign to nil"
|
|
|
|
len("") = 7 // ERROR `cannot assign to len\(""\)`
|
|
|
|
[]int{} = nil // ERROR "cannot assign to \[\]int\{\}"
|
2020-09-16 05:13:50 -06:00
|
|
|
|
|
|
|
var x int = 7
|
2020-11-30 22:38:49 -07:00
|
|
|
x + 1 = 7 // ERROR "cannot assign to x \+ 1"
|
2020-09-16 05:13:50 -06:00
|
|
|
}
|