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Commit | Line | Data |
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bae9f6d2 JC |
1 | package mapstructure |
2 | ||
3 | import ( | |
4 | "errors" | |
5 | "fmt" | |
6 | "sort" | |
7 | "strings" | |
8 | ) | |
9 | ||
10 | // Error implements the error interface and can represents multiple | |
11 | // errors that occur in the course of a single decode. | |
12 | type Error struct { | |
13 | Errors []string | |
14 | } | |
15 | ||
16 | func (e *Error) Error() string { | |
17 | points := make([]string, len(e.Errors)) | |
18 | for i, err := range e.Errors { | |
19 | points[i] = fmt.Sprintf("* %s", err) | |
20 | } | |
21 | ||
22 | sort.Strings(points) | |
23 | return fmt.Sprintf( | |
24 | "%d error(s) decoding:\n\n%s", | |
25 | len(e.Errors), strings.Join(points, "\n")) | |
26 | } | |
27 | ||
28 | // WrappedErrors implements the errwrap.Wrapper interface to make this | |
29 | // return value more useful with the errwrap and go-multierror libraries. | |
30 | func (e *Error) WrappedErrors() []error { | |
31 | if e == nil { | |
32 | return nil | |
33 | } | |
34 | ||
35 | result := make([]error, len(e.Errors)) | |
36 | for i, e := range e.Errors { | |
37 | result[i] = errors.New(e) | |
38 | } | |
39 | ||
40 | return result | |
41 | } | |
42 | ||
43 | func appendErrors(errors []string, err error) []string { | |
44 | switch e := err.(type) { | |
45 | case *Error: | |
46 | return append(errors, e.Errors...) | |
47 | default: | |
48 | return append(errors, e.Error()) | |
49 | } | |
50 | } |