mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-25 05:06:38 +00:00
a5f28fe0c9
Bumps [github.com/gin-contrib/gzip](https://github.com/gin-contrib/gzip) from 1.0.0 to 1.0.1. - [Release notes](https://github.com/gin-contrib/gzip/releases) - [Changelog](https://github.com/gin-contrib/gzip/blob/master/.goreleaser.yaml) - [Commits](https://github.com/gin-contrib/gzip/compare/v1.0.0...v1.0.1) --- updated-dependencies: - dependency-name: github.com/gin-contrib/gzip dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
661 lines
16 KiB
Go
661 lines
16 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 (
|
|
`fmt`
|
|
|
|
`github.com/bytedance/sonic/internal/native/types`
|
|
`github.com/bytedance/sonic/internal/rt`
|
|
)
|
|
|
|
const (
|
|
_DEFAULT_NODE_CAP int = 8
|
|
_APPEND_GROW_SHIFT = 1
|
|
)
|
|
|
|
const (
|
|
_ERR_NOT_FOUND types.ParsingError = 33
|
|
_ERR_UNSUPPORT_TYPE types.ParsingError = 34
|
|
)
|
|
|
|
var (
|
|
// ErrNotExist means both key and value doesn't exist
|
|
ErrNotExist error = newError(_ERR_NOT_FOUND, "value not exists")
|
|
|
|
// ErrUnsupportType means API on the node is unsupported
|
|
ErrUnsupportType error = newError(_ERR_UNSUPPORT_TYPE, "unsupported type")
|
|
)
|
|
|
|
type Parser struct {
|
|
p int
|
|
s string
|
|
noLazy bool
|
|
skipValue bool
|
|
dbuf *byte
|
|
}
|
|
|
|
/** Parser Private Methods **/
|
|
|
|
func (self *Parser) delim() types.ParsingError {
|
|
n := len(self.s)
|
|
p := self.lspace(self.p)
|
|
|
|
/* check for EOF */
|
|
if p >= n {
|
|
return types.ERR_EOF
|
|
}
|
|
|
|
/* check for the delimtier */
|
|
if self.s[p] != ':' {
|
|
return types.ERR_INVALID_CHAR
|
|
}
|
|
|
|
/* update the read pointer */
|
|
self.p = p + 1
|
|
return 0
|
|
}
|
|
|
|
func (self *Parser) object() types.ParsingError {
|
|
n := len(self.s)
|
|
p := self.lspace(self.p)
|
|
|
|
/* check for EOF */
|
|
if p >= n {
|
|
return types.ERR_EOF
|
|
}
|
|
|
|
/* check for the delimtier */
|
|
if self.s[p] != '{' {
|
|
return types.ERR_INVALID_CHAR
|
|
}
|
|
|
|
/* update the read pointer */
|
|
self.p = p + 1
|
|
return 0
|
|
}
|
|
|
|
func (self *Parser) array() types.ParsingError {
|
|
n := len(self.s)
|
|
p := self.lspace(self.p)
|
|
|
|
/* check for EOF */
|
|
if p >= n {
|
|
return types.ERR_EOF
|
|
}
|
|
|
|
/* check for the delimtier */
|
|
if self.s[p] != '[' {
|
|
return types.ERR_INVALID_CHAR
|
|
}
|
|
|
|
/* update the read pointer */
|
|
self.p = p + 1
|
|
return 0
|
|
}
|
|
|
|
func (self *Parser) lspace(sp int) int {
|
|
ns := len(self.s)
|
|
for ; sp<ns && isSpace(self.s[sp]); sp+=1 {}
|
|
|
|
return sp
|
|
}
|
|
|
|
func (self *Parser) decodeArray(ret *linkedNodes) (Node, types.ParsingError) {
|
|
sp := self.p
|
|
ns := len(self.s)
|
|
|
|
/* check for EOF */
|
|
if self.p = self.lspace(sp); self.p >= ns {
|
|
return Node{}, types.ERR_EOF
|
|
}
|
|
|
|
/* check for empty array */
|
|
if self.s[self.p] == ']' {
|
|
self.p++
|
|
return Node{t: types.V_ARRAY}, 0
|
|
}
|
|
|
|
/* allocate array space and parse every element */
|
|
for {
|
|
var val Node
|
|
var err types.ParsingError
|
|
|
|
if self.skipValue {
|
|
/* skip the value */
|
|
var start int
|
|
if start, err = self.skipFast(); err != 0 {
|
|
return Node{}, err
|
|
}
|
|
if self.p > ns {
|
|
return Node{}, types.ERR_EOF
|
|
}
|
|
t := switchRawType(self.s[start])
|
|
if t == _V_NONE {
|
|
return Node{}, types.ERR_INVALID_CHAR
|
|
}
|
|
val = newRawNode(self.s[start:self.p], t)
|
|
}else{
|
|
/* decode the value */
|
|
if val, err = self.Parse(); err != 0 {
|
|
return Node{}, err
|
|
}
|
|
}
|
|
|
|
/* add the value to result */
|
|
ret.Push(val)
|
|
self.p = self.lspace(self.p)
|
|
|
|
/* check for EOF */
|
|
if self.p >= ns {
|
|
return Node{}, types.ERR_EOF
|
|
}
|
|
|
|
/* check for the next character */
|
|
switch self.s[self.p] {
|
|
case ',' : self.p++
|
|
case ']' : self.p++; return newArray(ret), 0
|
|
default:
|
|
// if val.isLazy() {
|
|
// return newLazyArray(self, ret), 0
|
|
// }
|
|
return Node{}, types.ERR_INVALID_CHAR
|
|
}
|
|
}
|
|
}
|
|
|
|
func (self *Parser) decodeObject(ret *linkedPairs) (Node, types.ParsingError) {
|
|
sp := self.p
|
|
ns := len(self.s)
|
|
|
|
/* check for EOF */
|
|
if self.p = self.lspace(sp); self.p >= ns {
|
|
return Node{}, types.ERR_EOF
|
|
}
|
|
|
|
/* check for empty object */
|
|
if self.s[self.p] == '}' {
|
|
self.p++
|
|
return Node{t: types.V_OBJECT}, 0
|
|
}
|
|
|
|
/* decode each pair */
|
|
for {
|
|
var val Node
|
|
var njs types.JsonState
|
|
var err types.ParsingError
|
|
|
|
/* decode the key */
|
|
if njs = self.decodeValue(); njs.Vt != types.V_STRING {
|
|
return Node{}, types.ERR_INVALID_CHAR
|
|
}
|
|
|
|
/* extract the key */
|
|
idx := self.p - 1
|
|
key := self.s[njs.Iv:idx]
|
|
|
|
/* check for escape sequence */
|
|
if njs.Ep != -1 {
|
|
if key, err = unquote(key); err != 0 {
|
|
return Node{}, err
|
|
}
|
|
}
|
|
|
|
/* expect a ':' delimiter */
|
|
if err = self.delim(); err != 0 {
|
|
return Node{}, err
|
|
}
|
|
|
|
|
|
if self.skipValue {
|
|
/* skip the value */
|
|
var start int
|
|
if start, err = self.skipFast(); err != 0 {
|
|
return Node{}, err
|
|
}
|
|
if self.p > ns {
|
|
return Node{}, types.ERR_EOF
|
|
}
|
|
t := switchRawType(self.s[start])
|
|
if t == _V_NONE {
|
|
return Node{}, types.ERR_INVALID_CHAR
|
|
}
|
|
val = newRawNode(self.s[start:self.p], t)
|
|
} else {
|
|
/* decode the value */
|
|
if val, err = self.Parse(); err != 0 {
|
|
return Node{}, err
|
|
}
|
|
}
|
|
|
|
/* add the value to result */
|
|
// FIXME: ret's address may change here, thus previous referred node in ret may be invalid !!
|
|
ret.Push(Pair{Key: key, Value: val})
|
|
self.p = self.lspace(self.p)
|
|
|
|
/* check for EOF */
|
|
if self.p >= ns {
|
|
return Node{}, types.ERR_EOF
|
|
}
|
|
|
|
/* check for the next character */
|
|
switch self.s[self.p] {
|
|
case ',' : self.p++
|
|
case '}' : self.p++; return newObject(ret), 0
|
|
default:
|
|
// if val.isLazy() {
|
|
// return newLazyObject(self, ret), 0
|
|
// }
|
|
return Node{}, types.ERR_INVALID_CHAR
|
|
}
|
|
}
|
|
}
|
|
|
|
func (self *Parser) decodeString(iv int64, ep int) (Node, types.ParsingError) {
|
|
p := self.p - 1
|
|
s := self.s[iv:p]
|
|
|
|
/* fast path: no escape sequence */
|
|
if ep == -1 {
|
|
return NewString(s), 0
|
|
}
|
|
|
|
/* unquote the string */
|
|
out, err := unquote(s)
|
|
|
|
/* check for errors */
|
|
if err != 0 {
|
|
return Node{}, err
|
|
} else {
|
|
return newBytes(rt.Str2Mem(out)), 0
|
|
}
|
|
}
|
|
|
|
/** Parser Interface **/
|
|
|
|
func (self *Parser) Pos() int {
|
|
return self.p
|
|
}
|
|
|
|
func (self *Parser) Parse() (Node, types.ParsingError) {
|
|
switch val := self.decodeValue(); val.Vt {
|
|
case types.V_EOF : return Node{}, types.ERR_EOF
|
|
case types.V_NULL : return nullNode, 0
|
|
case types.V_TRUE : return trueNode, 0
|
|
case types.V_FALSE : return falseNode, 0
|
|
case types.V_STRING : return self.decodeString(val.Iv, val.Ep)
|
|
case types.V_ARRAY:
|
|
if p := skipBlank(self.s, self.p); p >= self.p && self.s[p] == ']' {
|
|
self.p = p + 1
|
|
return Node{t: types.V_ARRAY}, 0
|
|
}
|
|
if self.noLazy {
|
|
return self.decodeArray(new(linkedNodes))
|
|
}
|
|
return newLazyArray(self), 0
|
|
case types.V_OBJECT:
|
|
if p := skipBlank(self.s, self.p); p >= self.p && self.s[p] == '}' {
|
|
self.p = p + 1
|
|
return Node{t: types.V_OBJECT}, 0
|
|
}
|
|
if self.noLazy {
|
|
return self.decodeObject(new(linkedPairs))
|
|
}
|
|
return newLazyObject(self), 0
|
|
case types.V_DOUBLE : return NewNumber(self.s[val.Ep:self.p]), 0
|
|
case types.V_INTEGER : return NewNumber(self.s[val.Ep:self.p]), 0
|
|
default : return Node{}, types.ParsingError(-val.Vt)
|
|
}
|
|
}
|
|
|
|
func (self *Parser) searchKey(match string) types.ParsingError {
|
|
ns := len(self.s)
|
|
if err := self.object(); err != 0 {
|
|
return err
|
|
}
|
|
|
|
/* check for EOF */
|
|
if self.p = self.lspace(self.p); self.p >= ns {
|
|
return types.ERR_EOF
|
|
}
|
|
|
|
/* check for empty object */
|
|
if self.s[self.p] == '}' {
|
|
self.p++
|
|
return _ERR_NOT_FOUND
|
|
}
|
|
|
|
var njs types.JsonState
|
|
var err types.ParsingError
|
|
/* decode each pair */
|
|
for {
|
|
|
|
/* decode the key */
|
|
if njs = self.decodeValue(); njs.Vt != types.V_STRING {
|
|
return types.ERR_INVALID_CHAR
|
|
}
|
|
|
|
/* extract the key */
|
|
idx := self.p - 1
|
|
key := self.s[njs.Iv:idx]
|
|
|
|
/* check for escape sequence */
|
|
if njs.Ep != -1 {
|
|
if key, err = unquote(key); err != 0 {
|
|
return err
|
|
}
|
|
}
|
|
|
|
/* expect a ':' delimiter */
|
|
if err = self.delim(); err != 0 {
|
|
return err
|
|
}
|
|
|
|
/* skip value */
|
|
if key != match {
|
|
if _, err = self.skipFast(); err != 0 {
|
|
return err
|
|
}
|
|
} else {
|
|
return 0
|
|
}
|
|
|
|
/* check for EOF */
|
|
self.p = self.lspace(self.p)
|
|
if self.p >= ns {
|
|
return types.ERR_EOF
|
|
}
|
|
|
|
/* check for the next character */
|
|
switch self.s[self.p] {
|
|
case ',':
|
|
self.p++
|
|
case '}':
|
|
self.p++
|
|
return _ERR_NOT_FOUND
|
|
default:
|
|
return types.ERR_INVALID_CHAR
|
|
}
|
|
}
|
|
}
|
|
|
|
func (self *Parser) searchIndex(idx int) types.ParsingError {
|
|
ns := len(self.s)
|
|
if err := self.array(); err != 0 {
|
|
return err
|
|
}
|
|
|
|
/* check for EOF */
|
|
if self.p = self.lspace(self.p); self.p >= ns {
|
|
return types.ERR_EOF
|
|
}
|
|
|
|
/* check for empty array */
|
|
if self.s[self.p] == ']' {
|
|
self.p++
|
|
return _ERR_NOT_FOUND
|
|
}
|
|
|
|
var err types.ParsingError
|
|
/* allocate array space and parse every element */
|
|
for i := 0; i < idx; i++ {
|
|
|
|
/* decode the value */
|
|
if _, err = self.skipFast(); err != 0 {
|
|
return err
|
|
}
|
|
|
|
/* check for EOF */
|
|
self.p = self.lspace(self.p)
|
|
if self.p >= ns {
|
|
return types.ERR_EOF
|
|
}
|
|
|
|
/* check for the next character */
|
|
switch self.s[self.p] {
|
|
case ',':
|
|
self.p++
|
|
case ']':
|
|
self.p++
|
|
return _ERR_NOT_FOUND
|
|
default:
|
|
return types.ERR_INVALID_CHAR
|
|
}
|
|
}
|
|
|
|
return 0
|
|
}
|
|
|
|
func (self *Node) skipNextNode() *Node {
|
|
if !self.isLazy() {
|
|
return nil
|
|
}
|
|
|
|
parser, stack := self.getParserAndArrayStack()
|
|
ret := &stack.v
|
|
sp := parser.p
|
|
ns := len(parser.s)
|
|
|
|
/* check for EOF */
|
|
if parser.p = parser.lspace(sp); parser.p >= ns {
|
|
return newSyntaxError(parser.syntaxError(types.ERR_EOF))
|
|
}
|
|
|
|
/* check for empty array */
|
|
if parser.s[parser.p] == ']' {
|
|
parser.p++
|
|
self.setArray(ret)
|
|
return nil
|
|
}
|
|
|
|
var val Node
|
|
/* skip the value */
|
|
if start, err := parser.skipFast(); err != 0 {
|
|
return newSyntaxError(parser.syntaxError(err))
|
|
} else {
|
|
t := switchRawType(parser.s[start])
|
|
if t == _V_NONE {
|
|
return newSyntaxError(parser.syntaxError(types.ERR_INVALID_CHAR))
|
|
}
|
|
val = newRawNode(parser.s[start:parser.p], t)
|
|
}
|
|
|
|
/* add the value to result */
|
|
ret.Push(val)
|
|
self.l++
|
|
parser.p = parser.lspace(parser.p)
|
|
|
|
/* check for EOF */
|
|
if parser.p >= ns {
|
|
return newSyntaxError(parser.syntaxError(types.ERR_EOF))
|
|
}
|
|
|
|
/* check for the next character */
|
|
switch parser.s[parser.p] {
|
|
case ',':
|
|
parser.p++
|
|
return ret.At(ret.Len()-1)
|
|
case ']':
|
|
parser.p++
|
|
self.setArray(ret)
|
|
return ret.At(ret.Len()-1)
|
|
default:
|
|
return newSyntaxError(parser.syntaxError(types.ERR_INVALID_CHAR))
|
|
}
|
|
}
|
|
|
|
func (self *Node) skipNextPair() (*Pair) {
|
|
if !self.isLazy() {
|
|
return nil
|
|
}
|
|
|
|
parser, stack := self.getParserAndObjectStack()
|
|
ret := &stack.v
|
|
sp := parser.p
|
|
ns := len(parser.s)
|
|
|
|
/* check for EOF */
|
|
if parser.p = parser.lspace(sp); parser.p >= ns {
|
|
return &Pair{"", *newSyntaxError(parser.syntaxError(types.ERR_EOF))}
|
|
}
|
|
|
|
/* check for empty object */
|
|
if parser.s[parser.p] == '}' {
|
|
parser.p++
|
|
self.setObject(ret)
|
|
return nil
|
|
}
|
|
|
|
/* decode one pair */
|
|
var val Node
|
|
var njs types.JsonState
|
|
var err types.ParsingError
|
|
|
|
/* decode the key */
|
|
if njs = parser.decodeValue(); njs.Vt != types.V_STRING {
|
|
return &Pair{"", *newSyntaxError(parser.syntaxError(types.ERR_INVALID_CHAR))}
|
|
}
|
|
|
|
/* extract the key */
|
|
idx := parser.p - 1
|
|
key := parser.s[njs.Iv:idx]
|
|
|
|
/* check for escape sequence */
|
|
if njs.Ep != -1 {
|
|
if key, err = unquote(key); err != 0 {
|
|
return &Pair{key, *newSyntaxError(parser.syntaxError(err))}
|
|
}
|
|
}
|
|
|
|
/* expect a ':' delimiter */
|
|
if err = parser.delim(); err != 0 {
|
|
return &Pair{key, *newSyntaxError(parser.syntaxError(err))}
|
|
}
|
|
|
|
/* skip the value */
|
|
if start, err := parser.skipFast(); err != 0 {
|
|
return &Pair{key, *newSyntaxError(parser.syntaxError(err))}
|
|
} else {
|
|
t := switchRawType(parser.s[start])
|
|
if t == _V_NONE {
|
|
return &Pair{key, *newSyntaxError(parser.syntaxError(types.ERR_INVALID_CHAR))}
|
|
}
|
|
val = newRawNode(parser.s[start:parser.p], t)
|
|
}
|
|
|
|
/* add the value to result */
|
|
ret.Push(Pair{Key: key, Value: val})
|
|
self.l++
|
|
parser.p = parser.lspace(parser.p)
|
|
|
|
/* check for EOF */
|
|
if parser.p >= ns {
|
|
return &Pair{key, *newSyntaxError(parser.syntaxError(types.ERR_EOF))}
|
|
}
|
|
|
|
/* check for the next character */
|
|
switch parser.s[parser.p] {
|
|
case ',':
|
|
parser.p++
|
|
return ret.At(ret.Len()-1)
|
|
case '}':
|
|
parser.p++
|
|
self.setObject(ret)
|
|
return ret.At(ret.Len()-1)
|
|
default:
|
|
return &Pair{key, *newSyntaxError(parser.syntaxError(types.ERR_INVALID_CHAR))}
|
|
}
|
|
}
|
|
|
|
|
|
/** Parser Factory **/
|
|
|
|
// Loads parse all json into interface{}
|
|
func Loads(src string) (int, interface{}, error) {
|
|
ps := &Parser{s: src}
|
|
np, err := ps.Parse()
|
|
|
|
/* check for errors */
|
|
if err != 0 {
|
|
return 0, nil, ps.ExportError(err)
|
|
} else {
|
|
x, err := np.Interface()
|
|
if err != nil {
|
|
return 0, nil, err
|
|
}
|
|
return ps.Pos(), x, nil
|
|
}
|
|
}
|
|
|
|
// LoadsUseNumber parse all json into interface{}, with numeric nodes casted to json.Number
|
|
func LoadsUseNumber(src string) (int, interface{}, error) {
|
|
ps := &Parser{s: src}
|
|
np, err := ps.Parse()
|
|
|
|
/* check for errors */
|
|
if err != 0 {
|
|
return 0, nil, err
|
|
} else {
|
|
x, err := np.InterfaceUseNumber()
|
|
if err != nil {
|
|
return 0, nil, err
|
|
}
|
|
return ps.Pos(), x, nil
|
|
}
|
|
}
|
|
|
|
// NewParser returns pointer of new allocated parser
|
|
func NewParser(src string) *Parser {
|
|
return &Parser{s: src}
|
|
}
|
|
|
|
// NewParser returns new allocated parser
|
|
func NewParserObj(src string) Parser {
|
|
return Parser{s: src}
|
|
}
|
|
|
|
// decodeNumber controls if parser decodes the number values instead of skip them
|
|
// WARN: once you set decodeNumber(true), please set decodeNumber(false) before you drop the parser
|
|
// otherwise the memory CANNOT be reused
|
|
func (self *Parser) decodeNumber(decode bool) {
|
|
if !decode && self.dbuf != nil {
|
|
types.FreeDbuf(self.dbuf)
|
|
self.dbuf = nil
|
|
return
|
|
}
|
|
if decode && self.dbuf == nil {
|
|
self.dbuf = types.NewDbuf()
|
|
}
|
|
}
|
|
|
|
// ExportError converts types.ParsingError to std Error
|
|
func (self *Parser) ExportError(err types.ParsingError) error {
|
|
if err == _ERR_NOT_FOUND {
|
|
return ErrNotExist
|
|
}
|
|
return fmt.Errorf("%q", SyntaxError{
|
|
Pos : self.p,
|
|
Src : self.s,
|
|
Code: err,
|
|
}.Description())
|
|
}
|
|
|
|
func backward(src string, i int) int {
|
|
for ; i>=0 && isSpace(src[i]); i-- {}
|
|
return i
|
|
}
|