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@@ -1,446 +0,0 @@
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-package simplejson
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-
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-import (
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- "encoding/json"
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- "errors"
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- "log"
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-)
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-
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-// returns the current implementation version
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-func Version() string {
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- return "0.5.0"
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-}
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-
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-type Json struct {
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- data interface{}
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-}
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-
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-// NewJson returns a pointer to a new `Json` object
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-// after unmarshaling `body` bytes
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-func NewJson(body []byte) (*Json, error) {
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- j := new(Json)
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- err := j.UnmarshalJSON(body)
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- if err != nil {
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- return nil, err
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- }
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- return j, nil
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-}
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-
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-// New returns a pointer to a new, empty `Json` object
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-func New() *Json {
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- return &Json{
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- data: make(map[string]interface{}),
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- }
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-}
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-
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-// Interface returns the underlying data
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-func (j *Json) Interface() interface{} {
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- return j.data
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-}
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-
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-// Encode returns its marshaled data as `[]byte`
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-func (j *Json) Encode() ([]byte, error) {
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- return j.MarshalJSON()
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-}
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-
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-// EncodePretty returns its marshaled data as `[]byte` with indentation
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-func (j *Json) EncodePretty() ([]byte, error) {
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- return json.MarshalIndent(&j.data, "", " ")
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-}
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-
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-// Implements the json.Marshaler interface.
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-func (j *Json) MarshalJSON() ([]byte, error) {
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- return json.Marshal(&j.data)
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-}
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-
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-// Set modifies `Json` map by `key` and `value`
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-// Useful for changing single key/value in a `Json` object easily.
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-func (j *Json) Set(key string, val interface{}) {
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- m, err := j.Map()
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- if err != nil {
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- return
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- }
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- m[key] = val
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-}
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-
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-// SetPath modifies `Json`, recursively checking/creating map keys for the supplied path,
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-// and then finally writing in the value
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-func (j *Json) SetPath(branch []string, val interface{}) {
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- if len(branch) == 0 {
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- j.data = val
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- return
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- }
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-
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- // in order to insert our branch, we need map[string]interface{}
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- if _, ok := (j.data).(map[string]interface{}); !ok {
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- // have to replace with something suitable
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- j.data = make(map[string]interface{})
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- }
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- curr := j.data.(map[string]interface{})
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-
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- for i := 0; i < len(branch)-1; i++ {
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- b := branch[i]
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- // key exists?
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- if _, ok := curr[b]; !ok {
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- n := make(map[string]interface{})
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- curr[b] = n
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- curr = n
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- continue
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- }
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-
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- // make sure the value is the right sort of thing
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- if _, ok := curr[b].(map[string]interface{}); !ok {
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- // have to replace with something suitable
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- n := make(map[string]interface{})
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- curr[b] = n
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- }
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-
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- curr = curr[b].(map[string]interface{})
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- }
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-
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- // add remaining k/v
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- curr[branch[len(branch)-1]] = val
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-}
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-
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-// Del modifies `Json` map by deleting `key` if it is present.
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-func (j *Json) Del(key string) {
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- m, err := j.Map()
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- if err != nil {
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- return
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- }
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- delete(m, key)
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-}
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-
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-// Get returns a pointer to a new `Json` object
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-// for `key` in its `map` representation
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-//
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-// useful for chaining operations (to traverse a nested JSON):
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-// js.Get("top_level").Get("dict").Get("value").Int()
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-func (j *Json) Get(key string) *Json {
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- m, err := j.Map()
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- if err == nil {
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- if val, ok := m[key]; ok {
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- return &Json{val}
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- }
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- }
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- return &Json{nil}
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-}
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-
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-// GetPath searches for the item as specified by the branch
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-// without the need to deep dive using Get()'s.
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-//
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-// js.GetPath("top_level", "dict")
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-func (j *Json) GetPath(branch ...string) *Json {
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- jin := j
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- for _, p := range branch {
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- jin = jin.Get(p)
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- }
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- return jin
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-}
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-
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-// GetIndex returns a pointer to a new `Json` object
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-// for `index` in its `array` representation
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-//
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-// this is the analog to Get when accessing elements of
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-// a json array instead of a json object:
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-// js.Get("top_level").Get("array").GetIndex(1).Get("key").Int()
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-func (j *Json) GetIndex(index int) *Json {
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- a, err := j.Array()
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- if err == nil {
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- if len(a) > index {
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- return &Json{a[index]}
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- }
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- }
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- return &Json{nil}
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-}
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-
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-// CheckGet returns a pointer to a new `Json` object and
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-// a `bool` identifying success or failure
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-//
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-// useful for chained operations when success is important:
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-// if data, ok := js.Get("top_level").CheckGet("inner"); ok {
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-// log.Println(data)
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-// }
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-func (j *Json) CheckGet(key string) (*Json, bool) {
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- m, err := j.Map()
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- if err == nil {
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- if val, ok := m[key]; ok {
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- return &Json{val}, true
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- }
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- }
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- return nil, false
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-}
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-
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-// Map type asserts to `map`
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-func (j *Json) Map() (map[string]interface{}, error) {
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- if m, ok := (j.data).(map[string]interface{}); ok {
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- return m, nil
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- }
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- return nil, errors.New("type assertion to map[string]interface{} failed")
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-}
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-
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-// Array type asserts to an `array`
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-func (j *Json) Array() ([]interface{}, error) {
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- if a, ok := (j.data).([]interface{}); ok {
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- return a, nil
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- }
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- return nil, errors.New("type assertion to []interface{} failed")
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-}
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-
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-// Bool type asserts to `bool`
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-func (j *Json) Bool() (bool, error) {
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- if s, ok := (j.data).(bool); ok {
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- return s, nil
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- }
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- return false, errors.New("type assertion to bool failed")
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-}
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-
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-// String type asserts to `string`
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-func (j *Json) String() (string, error) {
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- if s, ok := (j.data).(string); ok {
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- return s, nil
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- }
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- return "", errors.New("type assertion to string failed")
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-}
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-
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-// Bytes type asserts to `[]byte`
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-func (j *Json) Bytes() ([]byte, error) {
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- if s, ok := (j.data).(string); ok {
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- return []byte(s), nil
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- }
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- return nil, errors.New("type assertion to []byte failed")
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-}
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-
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-// StringArray type asserts to an `array` of `string`
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-func (j *Json) StringArray() ([]string, error) {
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- arr, err := j.Array()
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- if err != nil {
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- return nil, err
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- }
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- retArr := make([]string, 0, len(arr))
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- for _, a := range arr {
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- if a == nil {
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- retArr = append(retArr, "")
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- continue
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- }
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- s, ok := a.(string)
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- if !ok {
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- return nil, err
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- }
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- retArr = append(retArr, s)
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- }
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- return retArr, nil
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-}
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-
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-// MustArray guarantees the return of a `[]interface{}` (with optional default)
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-//
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-// useful when you want to interate over array values in a succinct manner:
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-// for i, v := range js.Get("results").MustArray() {
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-// fmt.Println(i, v)
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-// }
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-func (j *Json) MustArray(args ...[]interface{}) []interface{} {
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- var def []interface{}
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-
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- switch len(args) {
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- case 0:
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- case 1:
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- def = args[0]
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- default:
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- log.Panicf("MustArray() received too many arguments %d", len(args))
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- }
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-
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- a, err := j.Array()
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- if err == nil {
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- return a
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- }
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-
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- return def
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-}
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-
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-// MustMap guarantees the return of a `map[string]interface{}` (with optional default)
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-//
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-// useful when you want to interate over map values in a succinct manner:
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-// for k, v := range js.Get("dictionary").MustMap() {
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-// fmt.Println(k, v)
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-// }
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-func (j *Json) MustMap(args ...map[string]interface{}) map[string]interface{} {
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- var def map[string]interface{}
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-
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- switch len(args) {
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- case 0:
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- case 1:
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- def = args[0]
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- default:
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- log.Panicf("MustMap() received too many arguments %d", len(args))
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- }
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-
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- a, err := j.Map()
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- if err == nil {
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- return a
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- }
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-
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- return def
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-}
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-
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-// MustString guarantees the return of a `string` (with optional default)
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-//
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-// useful when you explicitly want a `string` in a single value return context:
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-// myFunc(js.Get("param1").MustString(), js.Get("optional_param").MustString("my_default"))
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-func (j *Json) MustString(args ...string) string {
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- var def string
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-
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- switch len(args) {
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- case 0:
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- case 1:
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- def = args[0]
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- default:
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- log.Panicf("MustString() received too many arguments %d", len(args))
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- }
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-
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- s, err := j.String()
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- if err == nil {
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- return s
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- }
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-
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- return def
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-}
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-
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-// MustStringArray guarantees the return of a `[]string` (with optional default)
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-//
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-// useful when you want to interate over array values in a succinct manner:
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-// for i, s := range js.Get("results").MustStringArray() {
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-// fmt.Println(i, s)
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-// }
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-func (j *Json) MustStringArray(args ...[]string) []string {
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- var def []string
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-
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- switch len(args) {
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- case 0:
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- case 1:
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- def = args[0]
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- default:
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- log.Panicf("MustStringArray() received too many arguments %d", len(args))
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- }
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-
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- a, err := j.StringArray()
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- if err == nil {
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- return a
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- }
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-
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- return def
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-}
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-
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-// MustInt guarantees the return of an `int` (with optional default)
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-//
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-// useful when you explicitly want an `int` in a single value return context:
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-// myFunc(js.Get("param1").MustInt(), js.Get("optional_param").MustInt(5150))
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-func (j *Json) MustInt(args ...int) int {
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- var def int
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-
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- switch len(args) {
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- case 0:
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- case 1:
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- def = args[0]
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- default:
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- log.Panicf("MustInt() received too many arguments %d", len(args))
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- }
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-
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- i, err := j.Int()
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- if err == nil {
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- return i
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- }
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-
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- return def
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-}
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-
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-// MustFloat64 guarantees the return of a `float64` (with optional default)
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-//
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-// useful when you explicitly want a `float64` in a single value return context:
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-// myFunc(js.Get("param1").MustFloat64(), js.Get("optional_param").MustFloat64(5.150))
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-func (j *Json) MustFloat64(args ...float64) float64 {
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- var def float64
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-
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- switch len(args) {
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- case 0:
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- case 1:
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- def = args[0]
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- default:
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- log.Panicf("MustFloat64() received too many arguments %d", len(args))
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- }
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-
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- f, err := j.Float64()
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- if err == nil {
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- return f
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- }
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-
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- return def
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-}
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-
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-// MustBool guarantees the return of a `bool` (with optional default)
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-//
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-// useful when you explicitly want a `bool` in a single value return context:
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-// myFunc(js.Get("param1").MustBool(), js.Get("optional_param").MustBool(true))
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-func (j *Json) MustBool(args ...bool) bool {
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- var def bool
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-
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- switch len(args) {
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- case 0:
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- case 1:
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- def = args[0]
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- default:
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- log.Panicf("MustBool() received too many arguments %d", len(args))
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- }
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-
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- b, err := j.Bool()
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- if err == nil {
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- return b
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- }
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-
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- return def
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-}
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-
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-// MustInt64 guarantees the return of an `int64` (with optional default)
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-//
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-// useful when you explicitly want an `int64` in a single value return context:
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-// myFunc(js.Get("param1").MustInt64(), js.Get("optional_param").MustInt64(5150))
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-func (j *Json) MustInt64(args ...int64) int64 {
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- var def int64
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-
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- switch len(args) {
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- case 0:
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- case 1:
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- def = args[0]
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- default:
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- log.Panicf("MustInt64() received too many arguments %d", len(args))
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- }
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-
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- i, err := j.Int64()
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- if err == nil {
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- return i
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- }
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-
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- return def
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-}
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-
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-// MustUInt64 guarantees the return of an `uint64` (with optional default)
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-//
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-// useful when you explicitly want an `uint64` in a single value return context:
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-// myFunc(js.Get("param1").MustUint64(), js.Get("optional_param").MustUint64(5150))
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-func (j *Json) MustUint64(args ...uint64) uint64 {
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- var def uint64
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-
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- switch len(args) {
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- case 0:
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- case 1:
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- def = args[0]
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- default:
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- log.Panicf("MustUint64() received too many arguments %d", len(args))
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- }
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-
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- i, err := j.Uint64()
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- if err == nil {
|
|
|
- return i
|
|
|
- }
|
|
|
-
|
|
|
- return def
|
|
|
-}
|