55 lines
1.7 KiB
Go
55 lines
1.7 KiB
Go
|
// Copyright 2012-2017 Charles Banning. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style
|
||
|
|
// license that can be found in the LICENSE file
|
||
|
|
|
||
|
|
package mxj
|
||
|
|
|
||
|
|
import (
|
||
|
|
"encoding/json"
|
||
|
|
"errors"
|
||
|
|
"reflect"
|
||
|
|
|
||
|
|
// "github.com/fatih/structs"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Create a new Map value from a structure. Error returned if argument is not a structure.
|
||
|
|
// Only public structure fields are decoded in the Map value. See github.com/fatih/structs#Map
|
||
|
|
// for handling of "structs" tags.
|
||
|
|
|
||
|
|
// DEPRECATED - import github.com/fatih/structs and cast result of structs.Map to mxj.Map.
|
||
|
|
// import "github.com/fatih/structs"
|
||
|
|
// ...
|
||
|
|
// sm, err := structs.Map(<some struct>)
|
||
|
|
// if err != nil {
|
||
|
|
// // handle error
|
||
|
|
// }
|
||
|
|
// m := mxj.Map(sm)
|
||
|
|
// Alernatively uncomment the old source and import in struct.go.
|
||
|
|
func NewMapStruct(structVal interface{}) (Map, error) {
|
||
|
|
return nil, errors.New("deprecated - see package documentation")
|
||
|
|
/*
|
||
|
|
if !structs.IsStruct(structVal) {
|
||
|
|
return nil, errors.New("NewMapStruct() error: argument is not type Struct")
|
||
|
|
}
|
||
|
|
return structs.Map(structVal), nil
|
||
|
|
*/
|
||
|
|
}
|
||
|
|
|
||
|
|
// Marshal a map[string]interface{} into a structure referenced by 'structPtr'. Error returned
|
||
|
|
// if argument is not a pointer or if json.Unmarshal returns an error.
|
||
|
|
// json.Unmarshal structure encoding rules are followed to encode public structure fields.
|
||
|
|
func (mv Map) Struct(structPtr interface{}) error {
|
||
|
|
// should check that we're getting a pointer.
|
||
|
|
if reflect.ValueOf(structPtr).Kind() != reflect.Ptr {
|
||
|
|
return errors.New("mv.Struct() error: argument is not type Ptr")
|
||
|
|
}
|
||
|
|
|
||
|
|
m := map[string]interface{}(mv)
|
||
|
|
j, err := json.Marshal(m)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
return json.Unmarshal(j, structPtr)
|
||
|
|
}
|