1 package configx
2
3 import (
4 "fmt"
5
6 "github.com/pkg/errors"
7 )
8
9 type ImmutableError struct {
10 From interface{}
11 To interface{}
12 Key string
13 error
14 }
15
16 func NewImmutableError(key string, from, to interface{}) error {
17 return &ImmutableError{
18 From: from,
19 To: to,
20 Key: key,
21 error: errors.Errorf("immutable configuration key \"%s\" was changed from \"%v\" to \"%v\"", key, from, to),
22 }
23 }
24
25 func (e *ImmutableError) Error() string {
26 return fmt.Sprintf("immutable configuration key \"%s\" was changed from \"%v\" to \"%v\"", e.Key, e.From, e.To)
27 }
28
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