1107 lines
22 KiB
Go
1107 lines
22 KiB
Go
// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package data
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import (
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"fmt"
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"reflect"
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"strconv"
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"strings"
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"encoding/json"
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"github.com/abcum/surreal/util/deep"
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"github.com/abcum/surreal/util/pack"
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)
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const (
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one int8 = iota
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many
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)
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const (
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choose int8 = iota
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remove
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)
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// Doc holds a reference to the core data object, or a selected path.
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type Doc struct {
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data interface{}
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}
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// Fetcher is used when fetching values.
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type Fetcher func(key string, val interface{}, path []string) interface{}
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// Iterator is used when iterating over items.
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type Iterator func(key string, val interface{}) error
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// New creates a new data object.
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func New() *Doc {
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return &Doc{data: map[string]interface{}{}}
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}
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// Consume converts a GO interface into a data object.
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func Consume(input interface{}) *Doc {
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return &Doc{data: input}
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}
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// Data returns the internal data object as an interface.
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func (d *Doc) Data() interface{} {
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return d.data
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}
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// Copy returns a duplicated copy of the internal data object.
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func (d *Doc) Copy() *Doc {
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return &Doc{data: deep.Copy(d.data)}
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}
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// Encode encodes the data object to a byte slice.
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func (d *Doc) Encode() (dst []byte) {
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dst = pack.Encode(d.data)
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return
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}
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// Decode decodes the byte slice into a data object.
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func (d *Doc) Decode(src []byte) *Doc {
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pack.Decode(src, &d.data)
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return d
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}
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func (d *Doc) MarshalJSON() ([]byte, error) {
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return json.Marshal(d.Data())
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}
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func (d *Doc) UnmarshalJSON(data []byte) error {
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return json.Unmarshal(data, &d.data)
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}
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// --------------------------------------------------------------------------------
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func (d *Doc) path(path ...string) (paths []string) {
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for _, p := range path {
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for j, i, o := 0, 0, false; i < len(p); i++ {
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switch {
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case i == len(p)-1:
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if len(p[j:]) > 0 {
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paths = append(paths, p[j:])
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}
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case p[i] == '.':
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if len(p[j:i]) > 0 {
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paths = append(paths, p[j:i])
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}
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j, i = i+1, i+0
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case p[i] == '[':
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if len(p[j:i]) > 0 {
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paths = append(paths, p[j:i])
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}
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j, i, o = i, i+1, true
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case p[i] == ']' && o:
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if len(p[j:i+1]) > 0 {
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paths = append(paths, p[j:i+1])
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}
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j, i, o = i+1, i+0, false
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}
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}
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}
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return
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}
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func min(a, b int) int {
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if a < b {
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return a
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}
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return b
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}
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func max(a, b int) int {
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if a > b {
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return a
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}
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return b
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}
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func trim(s string) string {
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if s[0] == '[' && s[len(s)-1] == ']' {
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return s[1 : len(s)-1]
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}
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return s
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}
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func (d *Doc) what(p string, a []interface{}, t int8) (o []interface{}, i []int, r int8) {
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p = trim(p)
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i = []int{}
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o = []interface{}{}
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// If there are no items in the
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// original array, then return
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// an empty array immediately.
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if len(a) == 0 {
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if strings.ContainsAny(p, ":*") {
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return o, i, many
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} else {
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return o, i, one
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}
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}
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// If the array index is a star
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// or a colon only, then return
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// the full array immediately
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if p == "*" || p == ":" {
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switch t {
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case choose:
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for k := range a {
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i = append(i, k)
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}
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return a, i, many
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case remove:
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for k := range a {
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i = append(i, k)
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}
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return o, i, many
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}
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}
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// Split the specified array index
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// by colons, so that we can get
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// the specified array items.
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c := strings.Count(p, ":")
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if c == 0 {
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switch p {
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case "0", "first":
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if t == choose {
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i = append(i, 0)
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o = append(o, a[0])
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} else {
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for k := range a[1:] {
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i = append(i, k)
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}
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o = append(o, a[1:]...)
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}
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case "$", "last":
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if t == choose {
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i = append(i, len(a)-1)
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o = append(o, a[len(a)-1])
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} else {
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for k := range a[:len(a)-1] {
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i = append(i, k)
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}
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o = append(o, a[:len(a)-1]...)
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}
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default:
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if z, e := strconv.Atoi(p); e == nil {
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if len(a) > z {
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switch t {
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case choose:
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i = append(i, z)
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o = append(o, a[z])
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case remove:
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for k := range append(a[:z], a[z+1:]...) {
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i = append(i, k)
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}
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o = append(o, append(a[:z], a[z+1:]...)...)
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}
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} else {
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switch t {
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case remove:
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for k := range a {
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i = append(i, k)
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}
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o = append(o, a[:]...)
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}
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}
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}
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}
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return o, i, one
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}
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if c == 1 {
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var e error
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var s, f int
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b := []int{0, len(a)}
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x := strings.Split(p, ":")
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for k := range x {
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switch x[k] {
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case "":
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case "0", "first":
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b[k] = 0
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case "$", "last":
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b[k] = len(a)
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default:
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if b[k], e = strconv.Atoi(x[k]); e != nil {
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return nil, nil, many
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}
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}
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}
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s = b[0]
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s = max(s, 0)
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s = min(s, len(a))
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f = b[1]
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f = max(f, 0)
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f = min(f, len(a))
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if t == choose {
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for k, v := range a[s:f] {
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i = append(i, k)
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o = append(o, v)
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}
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} else {
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for k, v := range append(a[:s], a[f+1:]...) {
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i = append(i, k)
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o = append(o, v)
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}
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}
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return o, i, many
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}
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return nil, nil, many
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}
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// --------------------------------------------------------------------------------
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// Reset empties and resets the data at the specified path.
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func (d *Doc) Reset(path ...string) (*Doc, error) {
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return d.Set(map[string]interface{}{}, path...)
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}
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// Valid checks whether the value at the specified path is nil.
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func (d *Doc) Valid(path ...string) bool {
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if !d.Exists(path...) {
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return false
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}
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return d.Get(path...).Data() != nil
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}
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// Array sets the specified path to an array.
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func (d *Doc) Array(path ...string) (*Doc, error) {
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return d.Set([]interface{}{}, path...)
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}
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// Object sets the specified path to an object.
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func (d *Doc) Object(path ...string) (*Doc, error) {
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return d.Set(map[string]interface{}{}, path...)
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}
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// --------------------------------------------------------------------------------
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// New sets the value at the specified path if it does not exist.
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func (d *Doc) New(value interface{}, path ...string) (*Doc, error) {
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if !d.Exists(path...) {
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return d.Set(value, path...)
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}
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return d.Get(path...), nil
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}
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// Iff sets the value at the specified path if it is not nil, or deletes it.
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func (d *Doc) Iff(value interface{}, path ...string) (*Doc, error) {
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if value != nil {
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return d.Set(value, path...)
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}
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return &Doc{data: nil}, d.Del(path...)
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}
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// Keys retrieves the object keys at the specified path.
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func (d *Doc) Keys(path ...string) *Doc {
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path = d.path(path...)
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out := []interface{}{}
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if m, ok := d.Get(path...).Data().(map[string]interface{}); ok {
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for k := range m {
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out = append(out, k)
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}
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}
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return &Doc{data: out}
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}
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// Vals retrieves the object values at the specified path.
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func (d *Doc) Vals(path ...string) *Doc {
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path = d.path(path...)
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out := []interface{}{}
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if m, ok := d.Get(path...).Data().(map[string]interface{}); ok {
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for _, v := range m {
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out = append(out, v)
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}
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}
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return &Doc{data: out}
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}
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// --------------------------------------------------------------------------------
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// Exists checks whether the specified path exists.
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func (d *Doc) Exists(path ...string) bool {
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path = d.path(path...)
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// If the value found at the current
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// path part is undefined, then just
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// return false immediately
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if d.data == nil {
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return false
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}
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// Define the temporary object so
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// that we can loop over and traverse
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// down the path parts of the data
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object := d.data
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// Loop over each part of the path
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// whilst detecting if the data at
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// the current path is an {} or []
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for k, p := range path {
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p = trim(p)
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// If the value found at the current
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// path part is an object, then move
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// to the next part of the path
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if m, ok := object.(map[string]interface{}); ok {
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if object, ok = m[p]; !ok {
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return false
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}
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continue
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}
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// If the value found at the current
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// path part is an array, then perform
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// the query on the specified items
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if a, ok := object.([]interface{}); ok {
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c, _, r := d.what(p, a, choose)
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if len(c) == 0 {
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return false
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}
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if r == one {
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return Consume(c[0]).Exists(path[k+1:]...)
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}
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if r == many {
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for _, v := range c {
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if !Consume(v).Exists(path[k+1:]...) {
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return false
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}
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}
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return true
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}
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}
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return false
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}
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return true
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}
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// --------------------------------------------------------------------------------
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// Get gets the value or values at a specified path.
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func (d *Doc) Get(path ...string) *Doc {
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return d.Fetch(nil, path...)
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}
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// Fetch gets the value or values at a specified path, allowing for a custom fetch method.
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func (d *Doc) Fetch(call Fetcher, path ...string) *Doc {
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path = d.path(path...)
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// If the value found at the current
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// path part is undefined, then just
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// return false immediately
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if d.data == nil {
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return &Doc{data: nil}
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}
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// Define the temporary object so
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// that we can loop over and traverse
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// down the path parts of the data
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object := d.data
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// Loop over each part of the path
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// whilst detecting if the data at
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// the current path is an {} or []
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for k, p := range path {
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p = trim(p)
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// If the value found at the current
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// path part is an object, then move
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// to the next part of the path
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if m, ok := object.(map[string]interface{}); ok {
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switch p {
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default:
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if call != nil {
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object = call(p, m[p], path[k+1:])
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} else {
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object = m[p]
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}
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case "*":
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object = m
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}
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continue
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}
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// If the value found at the current
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// path part is an array, then perform
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// the query on the specified items
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if a, ok := object.([]interface{}); ok {
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c, _, r := d.what(p, a, choose)
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if len(c) == 0 {
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return &Doc{data: nil}
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}
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if r == one {
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if call != nil {
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c[0] = call(p, c[0], path[k+1:])
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}
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return Consume(c[0]).Fetch(call, path[k+1:]...)
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}
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if r == many {
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out := []interface{}{}
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for _, v := range c {
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if call != nil {
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v = call(p, v, path[k+1:])
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}
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res := Consume(v).Fetch(call, path[k+1:]...)
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out = append(out, res.data)
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}
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return &Doc{data: out}
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}
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}
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return &Doc{data: nil}
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|
}
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return &Doc{data: object}
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}
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|
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// --------------------------------------------------------------------------------
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|
|
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// Set sets the value or values at a specified path.
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func (d *Doc) Set(value interface{}, path ...string) (*Doc, error) {
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path = d.path(path...)
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if len(path) == 0 {
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d.data = value
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return d, nil
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}
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|
|
|
// If the value found at the current
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// path part is undefined, then ensure
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// that it is an object
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|
|
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if d.data == nil {
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d.data = map[string]interface{}{}
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}
|
|
|
|
// Define the temporary object so
|
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// that we can loop over and traverse
|
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// down the path parts of the data
|
|
|
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object := d.data
|
|
|
|
// Loop over each part of the path
|
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// whilst detecting if the data at
|
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// the current path is an {} or []
|
|
|
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for k, p := range path {
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|
|
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p = trim(p)
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|
|
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// If the value found at the current
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// path part is an object, then move
|
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// to the next part of the path
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|
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if m, ok := object.(map[string]interface{}); ok {
|
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if k == len(path)-1 {
|
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m[p] = value
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} else if m[p] == nil {
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m[p] = map[string]interface{}{}
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}
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object = m[p]
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continue
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}
|
|
|
|
// If the value found at the current
|
|
// path part is an array, then perform
|
|
// the query on the specified items
|
|
|
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if a, ok := object.([]interface{}); ok {
|
|
|
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c, i, r := d.what(p, a, choose)
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|
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if len(c) == 0 {
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return &Doc{data: nil}, nil
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}
|
|
|
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if r == one {
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if k == len(path)-1 {
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a[i[0]] = value
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object = a[i[0]]
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continue
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} else {
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return Consume(a[i[0]]).Set(value, path[k+1:]...)
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}
|
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}
|
|
|
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if r == many {
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out := []interface{}{}
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for j, v := range c {
|
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if k == len(path)-1 {
|
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a[i[j]] = value
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out = append(out, value)
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} else {
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res, _ := Consume(v).Set(value, path[k+1:]...)
|
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if res.data != nil {
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out = append(out, res.data)
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}
|
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}
|
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}
|
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return &Doc{data: out}, nil
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}
|
|
|
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}
|
|
|
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}
|
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|
|
return &Doc{data: object}, nil
|
|
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------
|
|
|
|
// Del deletes the value or values at a specified path.
|
|
func (d *Doc) Del(path ...string) error {
|
|
|
|
path = d.path(path...)
|
|
|
|
// If the value found at the current
|
|
// path part is undefined, then return
|
|
// a not an object error
|
|
|
|
if d.data == nil {
|
|
return fmt.Errorf("Item is not an object")
|
|
}
|
|
|
|
// Define the temporary object so
|
|
// that we can loop over and traverse
|
|
// down the path parts of the data
|
|
|
|
object := d.data
|
|
|
|
// Loop over each part of the path
|
|
// whilst detecting if the data at
|
|
// the current path is an {} or []
|
|
|
|
for k, p := range path {
|
|
|
|
p = trim(p)
|
|
|
|
// If the value found at the current
|
|
// path part is an object, then move
|
|
// to the next part of the path
|
|
|
|
if m, ok := object.(map[string]interface{}); ok {
|
|
if k == len(path)-1 {
|
|
delete(m, p)
|
|
} else if m[p] == nil {
|
|
return fmt.Errorf("Item at path %s is not an object", path)
|
|
}
|
|
object = m[p]
|
|
continue
|
|
}
|
|
|
|
// If the value found at the current
|
|
// path part is an array, then perform
|
|
// the query on the specified items
|
|
|
|
if a, ok := object.([]interface{}); ok {
|
|
|
|
var r int8
|
|
var c []interface{}
|
|
|
|
if k == len(path)-1 {
|
|
c, _, r = d.what(p, a, remove)
|
|
} else {
|
|
c, _, r = d.what(p, a, choose)
|
|
}
|
|
|
|
if r == one {
|
|
if k == len(path)-1 {
|
|
d.Set(c, path[:len(path)-1]...)
|
|
continue
|
|
} else {
|
|
if len(c) != 0 {
|
|
return Consume(c[0]).Del(path[k+1:]...)
|
|
}
|
|
}
|
|
}
|
|
|
|
if r == many {
|
|
if k == len(path)-1 {
|
|
d.Set(c, path[:len(path)-1]...)
|
|
continue
|
|
} else {
|
|
for _, v := range c {
|
|
Consume(v).Del(path[k+1:]...)
|
|
}
|
|
break
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------
|
|
|
|
// Append appends an item or an array of items to an array at the specified path.
|
|
func (d *Doc) Append(value interface{}, path ...string) (*Doc, error) {
|
|
|
|
a, ok := d.Get(path...).Data().([]interface{})
|
|
if !ok {
|
|
return &Doc{data: nil}, fmt.Errorf("Not an array")
|
|
}
|
|
|
|
if values, ok := value.([]interface{}); ok {
|
|
for _, value := range values {
|
|
a = append(a, value)
|
|
}
|
|
} else {
|
|
a = append(a, value)
|
|
}
|
|
|
|
return d.Set(a, path...)
|
|
|
|
}
|
|
|
|
// ArrayAdd appends an item or an array of items to an array at the specified path.
|
|
func (d *Doc) ArrayAdd(value interface{}, path ...string) (*Doc, error) {
|
|
|
|
a, ok := d.Get(path...).Data().([]interface{})
|
|
if !ok {
|
|
return &Doc{data: nil}, fmt.Errorf("Not an array")
|
|
}
|
|
|
|
if values, ok := value.([]interface{}); ok {
|
|
outer:
|
|
for _, value := range values {
|
|
for _, v := range a {
|
|
if reflect.DeepEqual(v, value) {
|
|
continue outer
|
|
}
|
|
}
|
|
a = append(a, value)
|
|
}
|
|
} else {
|
|
for _, v := range a {
|
|
if reflect.DeepEqual(v, value) {
|
|
return Consume(a), nil
|
|
}
|
|
}
|
|
a = append(a, value)
|
|
}
|
|
|
|
return d.Set(a, path...)
|
|
|
|
}
|
|
|
|
// ArrayDel deletes an item or an array of items from an array at the specified path.
|
|
func (d *Doc) ArrayDel(value interface{}, path ...string) (*Doc, error) {
|
|
|
|
a, ok := d.Get(path...).Data().([]interface{})
|
|
if !ok {
|
|
return &Doc{data: nil}, fmt.Errorf("Not an array")
|
|
}
|
|
|
|
if values, ok := value.([]interface{}); ok {
|
|
for _, value := range values {
|
|
for i := len(a) - 1; i >= 0; i-- {
|
|
v := a[i]
|
|
if reflect.DeepEqual(v, value) {
|
|
copy(a[i:], a[i+1:])
|
|
a[len(a)-1] = nil
|
|
a = a[:len(a)-1]
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for i := len(a) - 1; i >= 0; i-- {
|
|
v := a[i]
|
|
if reflect.DeepEqual(v, value) {
|
|
copy(a[i:], a[i+1:])
|
|
a[len(a)-1] = nil
|
|
a = a[:len(a)-1]
|
|
}
|
|
}
|
|
}
|
|
|
|
return d.Set(a, path...)
|
|
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------
|
|
|
|
// Contains checks whether the value exists within the array at the specified path.
|
|
func (d *Doc) Contains(value interface{}, path ...string) bool {
|
|
|
|
a, ok := d.Get(path...).Data().([]interface{})
|
|
if !ok {
|
|
return false
|
|
}
|
|
|
|
for _, v := range a {
|
|
if reflect.DeepEqual(v, value) {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------
|
|
|
|
// Inc increments an item, or appends an item to an array at the specified path.
|
|
func (d *Doc) Inc(value interface{}, path ...string) (*Doc, error) {
|
|
|
|
switch cur := d.Get(path...).Data().(type) {
|
|
case nil:
|
|
switch inc := value.(type) {
|
|
case int64:
|
|
return d.Set(0+inc, path...)
|
|
case float64:
|
|
return d.Set(0+inc, path...)
|
|
default:
|
|
return d.Set([]interface{}{value}, path...)
|
|
}
|
|
case int64:
|
|
switch inc := value.(type) {
|
|
case int64:
|
|
return d.Set(cur+inc, path...)
|
|
case float64:
|
|
return d.Set(float64(cur)+inc, path...)
|
|
}
|
|
case float64:
|
|
switch inc := value.(type) {
|
|
case int64:
|
|
return d.Set(cur+float64(inc), path...)
|
|
case float64:
|
|
return d.Set(cur+inc, path...)
|
|
}
|
|
case []interface{}:
|
|
return d.ArrayAdd(value, path...)
|
|
}
|
|
|
|
return &Doc{data: nil}, fmt.Errorf("Not possible to increment.")
|
|
|
|
}
|
|
|
|
// Dec decrements an item, or removes an item from an array at the specified path.
|
|
func (d *Doc) Dec(value interface{}, path ...string) (*Doc, error) {
|
|
|
|
switch cur := d.Get(path...).Data().(type) {
|
|
case nil:
|
|
switch inc := value.(type) {
|
|
case int64:
|
|
return d.Set(0-inc, path...)
|
|
case float64:
|
|
return d.Set(0-inc, path...)
|
|
}
|
|
case int64:
|
|
switch inc := value.(type) {
|
|
case int64:
|
|
return d.Set(cur-inc, path...)
|
|
case float64:
|
|
return d.Set(float64(cur)-inc, path...)
|
|
}
|
|
case float64:
|
|
switch inc := value.(type) {
|
|
case int64:
|
|
return d.Set(cur-float64(inc), path...)
|
|
case float64:
|
|
return d.Set(cur-inc, path...)
|
|
}
|
|
case []interface{}:
|
|
return d.ArrayDel(value, path...)
|
|
}
|
|
|
|
return &Doc{data: nil}, fmt.Errorf("Not possible to decrement.")
|
|
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------
|
|
|
|
func (d *Doc) Diff(n *Doc) map[string]interface{} {
|
|
|
|
var initial = make(map[string]interface{})
|
|
var current = make(map[string]interface{})
|
|
var changes = make(map[string]interface{})
|
|
|
|
d.Each(func(key string, val interface{}) error {
|
|
initial[key] = val
|
|
return nil
|
|
})
|
|
|
|
n.Each(func(key string, val interface{}) error {
|
|
current[key] = val
|
|
return nil
|
|
})
|
|
|
|
for k, v := range current {
|
|
if o, ok := initial[k]; ok {
|
|
if reflect.DeepEqual(o, v) {
|
|
continue
|
|
}
|
|
}
|
|
changes[k] = v
|
|
}
|
|
|
|
for k := range initial {
|
|
if _, ok := current[k]; !ok {
|
|
changes[k] = nil
|
|
}
|
|
}
|
|
|
|
return changes
|
|
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------
|
|
|
|
func (d *Doc) join(parts ...[]string) string {
|
|
var path []string
|
|
for _, part := range parts {
|
|
path = append(path, part...)
|
|
}
|
|
return strings.Join(path, ".")
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------
|
|
|
|
// Each loops through the values in the data doc.
|
|
func (d *Doc) Each(exec Iterator) error {
|
|
|
|
return d.each(exec, nil)
|
|
|
|
}
|
|
|
|
func (d *Doc) each(exec Iterator, prev []string) error {
|
|
|
|
// Define the temporary object so
|
|
// that we can loop over and traverse
|
|
// down the path parts of the data
|
|
|
|
object := d.data
|
|
|
|
// If the value found at the current
|
|
// path part is an object, then move
|
|
// to the next part of the path
|
|
|
|
if m, ok := object.(map[string]interface{}); ok {
|
|
exec(d.join(prev), make(map[string]interface{}))
|
|
for k, v := range m {
|
|
var keep []string
|
|
keep = append(keep, prev...)
|
|
keep = append(keep, k)
|
|
Consume(v).each(exec, keep)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// If the value found at the current
|
|
// path part is an array, then perform
|
|
// the query on the specified items
|
|
|
|
if a, ok := object.([]interface{}); ok {
|
|
exec(d.join(prev), make([]interface{}, len(a)))
|
|
for i, v := range a {
|
|
var keep []string
|
|
keep = append(keep, prev...)
|
|
keep = append(keep, fmt.Sprintf("[%d]", i))
|
|
Consume(v).each(exec, keep)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
return exec(d.join(prev), object)
|
|
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------
|
|
|
|
// Walk walks the value or values at a specified path.
|
|
func (d *Doc) Walk(exec Iterator, path ...string) error {
|
|
|
|
path = d.path(path...)
|
|
|
|
return d.walk(exec, nil, path...)
|
|
|
|
}
|
|
|
|
func (d *Doc) walk(exec Iterator, prev []string, path ...string) error {
|
|
|
|
if len(path) == 0 {
|
|
return nil
|
|
}
|
|
|
|
// If the value found at the current
|
|
// path part is undefined, then ensure
|
|
// that it is an object
|
|
|
|
if d.data == nil {
|
|
d.data = map[string]interface{}{}
|
|
}
|
|
|
|
// Define the temporary object so
|
|
// that we can loop over and traverse
|
|
// down the path parts of the data
|
|
|
|
object := d.data
|
|
|
|
// Loop over each part of the path
|
|
// whilst detecting if the data at
|
|
// the current path is an {} or []
|
|
|
|
for k, p := range path {
|
|
|
|
p = trim(p)
|
|
|
|
// If the value found at the current
|
|
// path part is an object, then move
|
|
// to the next part of the path
|
|
|
|
if m, ok := object.(map[string]interface{}); ok {
|
|
if object, ok = m[p]; !ok {
|
|
return exec(d.join(prev, path), nil)
|
|
}
|
|
continue
|
|
}
|
|
|
|
// If the value found at the current
|
|
// path part is an array, then perform
|
|
// the query on the specified items
|
|
|
|
if a, ok := object.([]interface{}); ok {
|
|
|
|
c, i, r := d.what(p, a, choose)
|
|
|
|
if r == one && len(c) == 0 {
|
|
return fmt.Errorf("No item with index %s in array, using path %s", p, path)
|
|
}
|
|
|
|
if r == one {
|
|
if k == len(path)-1 {
|
|
var keep []string
|
|
keep = append(keep, prev...)
|
|
keep = append(keep, path[:k]...)
|
|
keep = append(keep, fmt.Sprintf("[%d]", i[0]))
|
|
return exec(d.join(keep), c[0])
|
|
} else {
|
|
var keep []string
|
|
keep = append(keep, prev...)
|
|
keep = append(keep, path[:k]...)
|
|
keep = append(keep, fmt.Sprintf("[%d]", i[0]))
|
|
return Consume(c[0]).walk(exec, keep, path[k+1:]...)
|
|
}
|
|
}
|
|
|
|
if r == many {
|
|
for j, v := range c {
|
|
if k == len(path)-1 {
|
|
var keep []string
|
|
keep = append(keep, prev...)
|
|
keep = append(keep, path[:k]...)
|
|
keep = append(keep, fmt.Sprintf("[%d]", i[j]))
|
|
if err := exec(d.join(keep), v); err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
var keep []string
|
|
keep = append(keep, prev...)
|
|
keep = append(keep, path[:k]...)
|
|
keep = append(keep, fmt.Sprintf("[%d]", i[j]))
|
|
if err := Consume(v).walk(exec, keep, path[k+1:]...); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
}
|
|
|
|
// The current path item is not an object or an array
|
|
// but there are still other items in the search path.
|
|
|
|
return fmt.Errorf("Can not get path %s from %v", path, object)
|
|
|
|
}
|
|
|
|
return exec(d.join(prev, path), object)
|
|
|
|
}
|