134 lines
3.5 KiB
Go
134 lines
3.5 KiB
Go
// +build amd64,go1.16,!go1.23
|
|
|
|
/*
|
|
* Copyright 2022 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 (
|
|
`runtime`
|
|
`unsafe`
|
|
|
|
`github.com/bytedance/sonic/encoder`
|
|
`github.com/bytedance/sonic/internal/native`
|
|
`github.com/bytedance/sonic/internal/native/types`
|
|
`github.com/bytedance/sonic/internal/rt`
|
|
uq `github.com/bytedance/sonic/unquote`
|
|
`github.com/chenzhuoyu/base64x`
|
|
)
|
|
|
|
var typeByte = rt.UnpackEface(byte(0)).Type
|
|
|
|
//go:nocheckptr
|
|
func quote(buf *[]byte, val string) {
|
|
*buf = append(*buf, '"')
|
|
if len(val) == 0 {
|
|
*buf = append(*buf, '"')
|
|
return
|
|
}
|
|
|
|
sp := rt.IndexChar(val, 0)
|
|
nb := len(val)
|
|
b := (*rt.GoSlice)(unsafe.Pointer(buf))
|
|
|
|
// input buffer
|
|
for nb > 0 {
|
|
// output buffer
|
|
dp := unsafe.Pointer(uintptr(b.Ptr) + uintptr(b.Len))
|
|
dn := b.Cap - b.Len
|
|
// call native.Quote, dn is byte count it outputs
|
|
ret := native.Quote(sp, nb, dp, &dn, 0)
|
|
// update *buf length
|
|
b.Len += dn
|
|
|
|
// no need more output
|
|
if ret >= 0 {
|
|
break
|
|
}
|
|
|
|
// double buf size
|
|
*b = growslice(typeByte, *b, b.Cap*2)
|
|
// ret is the complement of consumed input
|
|
ret = ^ret
|
|
// update input buffer
|
|
nb -= ret
|
|
sp = unsafe.Pointer(uintptr(sp) + uintptr(ret))
|
|
}
|
|
|
|
runtime.KeepAlive(buf)
|
|
runtime.KeepAlive(sp)
|
|
*buf = append(*buf, '"')
|
|
}
|
|
|
|
func unquote(src string) (string, types.ParsingError) {
|
|
return uq.String(src)
|
|
}
|
|
|
|
func decodeBase64(src string) ([]byte, error) {
|
|
return base64x.StdEncoding.DecodeString(src)
|
|
}
|
|
|
|
func encodeBase64(src []byte) string {
|
|
return base64x.StdEncoding.EncodeToString(src)
|
|
}
|
|
|
|
func (self *Parser) decodeValue() (val types.JsonState) {
|
|
sv := (*rt.GoString)(unsafe.Pointer(&self.s))
|
|
flag := types.F_USE_NUMBER
|
|
if self.dbuf != nil {
|
|
flag = 0
|
|
val.Dbuf = self.dbuf
|
|
val.Dcap = types.MaxDigitNums
|
|
}
|
|
self.p = native.Value(sv.Ptr, sv.Len, self.p, &val, uint64(flag))
|
|
return
|
|
}
|
|
|
|
func (self *Parser) skip() (int, types.ParsingError) {
|
|
fsm := types.NewStateMachine()
|
|
start := native.SkipOne(&self.s, &self.p, fsm, 0)
|
|
types.FreeStateMachine(fsm)
|
|
|
|
if start < 0 {
|
|
return self.p, types.ParsingError(-start)
|
|
}
|
|
return start, 0
|
|
}
|
|
|
|
func (self *Node) encodeInterface(buf *[]byte) error {
|
|
//WARN: NOT compatible with json.Encoder
|
|
return encoder.EncodeInto(buf, self.packAny(), 0)
|
|
}
|
|
|
|
func (self *Parser) skipFast() (int, types.ParsingError) {
|
|
start := native.SkipOneFast(&self.s, &self.p)
|
|
if start < 0 {
|
|
return self.p, types.ParsingError(-start)
|
|
}
|
|
return start, 0
|
|
}
|
|
|
|
func (self *Parser) getByPath(path ...interface{}) (int, types.ParsingError) {
|
|
fsm := types.NewStateMachine()
|
|
start := native.GetByPath(&self.s, &self.p, &path, fsm)
|
|
types.FreeStateMachine(fsm)
|
|
runtime.KeepAlive(path)
|
|
if start < 0 {
|
|
return self.p, types.ParsingError(-start)
|
|
}
|
|
return start, 0
|
|
}
|