mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-23 20:26:39 +00:00
81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
/*
|
|
* Copyright 2021 ByteDance Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package ast
|
|
|
|
import (
|
|
`github.com/bytedance/sonic/internal/rt`
|
|
`github.com/bytedance/sonic/internal/native/types`
|
|
)
|
|
|
|
type Searcher struct {
|
|
parser Parser
|
|
}
|
|
|
|
func NewSearcher(str string) *Searcher {
|
|
return &Searcher{
|
|
parser: Parser{
|
|
s: str,
|
|
noLazy: false,
|
|
},
|
|
}
|
|
}
|
|
|
|
// GetByPathCopy search in depth from top json and returns a **Copied** json node at the path location
|
|
func (self *Searcher) GetByPathCopy(path ...interface{}) (Node, error) {
|
|
return self.getByPath(true, path...)
|
|
}
|
|
|
|
// GetByPathNoCopy search in depth from top json and returns a **Referenced** json node at the path location
|
|
//
|
|
// WARN: this search directly refer partial json from top json, which has faster speed,
|
|
// may consumes more memory.
|
|
func (self *Searcher) GetByPath(path ...interface{}) (Node, error) {
|
|
return self.getByPath(false, path...)
|
|
}
|
|
|
|
func (self *Searcher) getByPath(copystring bool, path ...interface{}) (Node, error) {
|
|
var err types.ParsingError
|
|
var start int
|
|
|
|
self.parser.p = 0
|
|
start, err = self.parser.getByPath(path...)
|
|
if err != 0 {
|
|
// for compatibility with old version
|
|
if err == types.ERR_NOT_FOUND {
|
|
return Node{}, ErrNotExist
|
|
}
|
|
if err == types.ERR_UNSUPPORT_TYPE {
|
|
panic("path must be either int(>=0) or string")
|
|
}
|
|
return Node{}, self.parser.syntaxError(err)
|
|
}
|
|
|
|
t := switchRawType(self.parser.s[start])
|
|
if t == _V_NONE {
|
|
return Node{}, self.parser.ExportError(err)
|
|
}
|
|
|
|
// copy string to reducing memory usage
|
|
var raw string
|
|
if copystring {
|
|
raw = rt.Mem2Str([]byte(self.parser.s[start:self.parser.p]))
|
|
} else {
|
|
raw = self.parser.s[start:self.parser.p]
|
|
}
|
|
return newRawNode(raw, t), nil
|
|
}
|