/usr/share/gocode/src/github.com/gin-gonic/gin/errors.go is in golang-github-gin-gonic-gin-dev 1.2+dfsg1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 | // Copyright 2014 Manu Martinez-Almeida. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package gin
import (
"bytes"
"encoding/json"
"fmt"
"reflect"
)
type ErrorType uint64
const (
ErrorTypeBind ErrorType = 1 << 63 // used when c.Bind() fails
ErrorTypeRender ErrorType = 1 << 62 // used when c.Render() fails
ErrorTypePrivate ErrorType = 1 << 0
ErrorTypePublic ErrorType = 1 << 1
ErrorTypeAny ErrorType = 1<<64 - 1
ErrorTypeNu = 2
)
type (
Error struct {
Err error
Type ErrorType
Meta interface{}
}
errorMsgs []*Error
)
var _ error = &Error{}
func (msg *Error) SetType(flags ErrorType) *Error {
msg.Type = flags
return msg
}
func (msg *Error) SetMeta(data interface{}) *Error {
msg.Meta = data
return msg
}
func (msg *Error) JSON() interface{} {
json := H{}
if msg.Meta != nil {
value := reflect.ValueOf(msg.Meta)
switch value.Kind() {
case reflect.Struct:
return msg.Meta
case reflect.Map:
for _, key := range value.MapKeys() {
json[key.String()] = value.MapIndex(key).Interface()
}
default:
json["meta"] = msg.Meta
}
}
if _, ok := json["error"]; !ok {
json["error"] = msg.Error()
}
return json
}
// MarshalJSON implements the json.Marshaller interface
func (msg *Error) MarshalJSON() ([]byte, error) {
return json.Marshal(msg.JSON())
}
// Implements the error interface
func (msg Error) Error() string {
return msg.Err.Error()
}
func (msg *Error) IsType(flags ErrorType) bool {
return (msg.Type & flags) > 0
}
// Returns a readonly copy filtered the byte.
// ie ByType(gin.ErrorTypePublic) returns a slice of errors with type=ErrorTypePublic
func (a errorMsgs) ByType(typ ErrorType) errorMsgs {
if len(a) == 0 {
return nil
}
if typ == ErrorTypeAny {
return a
}
var result errorMsgs
for _, msg := range a {
if msg.IsType(typ) {
result = append(result, msg)
}
}
return result
}
// Returns the last error in the slice. It returns nil if the array is empty.
// Shortcut for errors[len(errors)-1]
func (a errorMsgs) Last() *Error {
length := len(a)
if length > 0 {
return a[length-1]
}
return nil
}
// Returns an array will all the error messages.
// Example:
// c.Error(errors.New("first"))
// c.Error(errors.New("second"))
// c.Error(errors.New("third"))
// c.Errors.Errors() // == []string{"first", "second", "third"}
func (a errorMsgs) Errors() []string {
if len(a) == 0 {
return nil
}
errorStrings := make([]string, len(a))
for i, err := range a {
errorStrings[i] = err.Error()
}
return errorStrings
}
func (a errorMsgs) JSON() interface{} {
switch len(a) {
case 0:
return nil
case 1:
return a.Last().JSON()
default:
json := make([]interface{}, len(a))
for i, err := range a {
json[i] = err.JSON()
}
return json
}
}
func (a errorMsgs) MarshalJSON() ([]byte, error) {
return json.Marshal(a.JSON())
}
func (a errorMsgs) String() string {
if len(a) == 0 {
return ""
}
var buffer bytes.Buffer
for i, msg := range a {
fmt.Fprintf(&buffer, "Error #%02d: %s\n", (i + 1), msg.Err)
if msg.Meta != nil {
fmt.Fprintf(&buffer, " Meta: %v\n", msg.Meta)
}
}
return buffer.String()
}
|