1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
// Copyright 2019 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.
// This file contains tests for the errorsas checker.
package a
import "errors"
type myError int
func (myError) Error() string { return "" }
func perr() *error { return nil }
type iface interface {
m()
}
func two() (error, interface{}) { return nil, nil }
func _() {
var (
e error
m myError
i int
f iface
ei interface{}
)
errors.As(nil, &e) // *error
errors.As(nil, &m) // *T where T implemements error
errors.As(nil, &f) // *interface
errors.As(nil, perr()) // *error, via a call
errors.As(nil, ei) // empty interface
errors.As(nil, nil) // want `second argument to errors.As must be a non-nil pointer to either a type that implements error, or to any interface type`
errors.As(nil, e) // want `second argument to errors.As must be a non-nil pointer to either a type that implements error, or to any interface type`
errors.As(nil, m) // want `second argument to errors.As must be a non-nil pointer to either a type that implements error, or to any interface type`
errors.As(nil, f) // want `second argument to errors.As must be a non-nil pointer to either a type that implements error, or to any interface type`
errors.As(nil, &i) // want `second argument to errors.As must be a non-nil pointer to either a type that implements error, or to any interface type`
errors.As(two())
}
|
