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matterbridge/vendor/github.com/vmihailenco/msgpack/v5/decode_string.go
dependabot[bot] aad60c882e
Bump github.com/mattermost/mattermost-server/v6 from 6.1.0 to 6.3.0 (#1686)
Bumps [github.com/mattermost/mattermost-server/v6](https://github.com/mattermost/mattermost-server) from 6.1.0 to 6.3.0.
- [Release notes](https://github.com/mattermost/mattermost-server/releases)
- [Changelog](https://github.com/mattermost/mattermost-server/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mattermost/mattermost-server/compare/v6.1.0...v6.3.0)

---
updated-dependencies:
- dependency-name: github.com/mattermost/mattermost-server/v6
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2022-01-18 20:24:14 +01:00

193 lines
3.2 KiB
Go

package msgpack
import (
"fmt"
"reflect"
"github.com/vmihailenco/msgpack/v5/msgpcode"
)
func (d *Decoder) bytesLen(c byte) (int, error) {
if c == msgpcode.Nil {
return -1, nil
}
if msgpcode.IsFixedString(c) {
return int(c & msgpcode.FixedStrMask), nil
}
switch c {
case msgpcode.Str8, msgpcode.Bin8:
n, err := d.uint8()
return int(n), err
case msgpcode.Str16, msgpcode.Bin16:
n, err := d.uint16()
return int(n), err
case msgpcode.Str32, msgpcode.Bin32:
n, err := d.uint32()
return int(n), err
}
return 0, fmt.Errorf("msgpack: invalid code=%x decoding string/bytes length", c)
}
func (d *Decoder) DecodeString() (string, error) {
if intern := d.flags&useInternedStringsFlag != 0; intern || len(d.dict) > 0 {
return d.decodeInternedString(intern)
}
c, err := d.readCode()
if err != nil {
return "", err
}
return d.string(c)
}
func (d *Decoder) string(c byte) (string, error) {
n, err := d.bytesLen(c)
if err != nil {
return "", err
}
return d.stringWithLen(n)
}
func (d *Decoder) stringWithLen(n int) (string, error) {
if n <= 0 {
return "", nil
}
b, err := d.readN(n)
return string(b), err
}
func decodeStringValue(d *Decoder, v reflect.Value) error {
s, err := d.DecodeString()
if err != nil {
return err
}
v.SetString(s)
return nil
}
func (d *Decoder) DecodeBytesLen() (int, error) {
c, err := d.readCode()
if err != nil {
return 0, err
}
return d.bytesLen(c)
}
func (d *Decoder) DecodeBytes() ([]byte, error) {
c, err := d.readCode()
if err != nil {
return nil, err
}
return d.bytes(c, nil)
}
func (d *Decoder) bytes(c byte, b []byte) ([]byte, error) {
n, err := d.bytesLen(c)
if err != nil {
return nil, err
}
if n == -1 {
return nil, nil
}
return readN(d.r, b, n)
}
func (d *Decoder) decodeStringTemp() (string, error) {
if intern := d.flags&useInternedStringsFlag != 0; intern || len(d.dict) > 0 {
return d.decodeInternedString(intern)
}
c, err := d.readCode()
if err != nil {
return "", err
}
n, err := d.bytesLen(c)
if err != nil {
return "", err
}
if n == -1 {
return "", nil
}
b, err := d.readN(n)
if err != nil {
return "", err
}
return bytesToString(b), nil
}
func (d *Decoder) decodeBytesPtr(ptr *[]byte) error {
c, err := d.readCode()
if err != nil {
return err
}
return d.bytesPtr(c, ptr)
}
func (d *Decoder) bytesPtr(c byte, ptr *[]byte) error {
n, err := d.bytesLen(c)
if err != nil {
return err
}
if n == -1 {
*ptr = nil
return nil
}
*ptr, err = readN(d.r, *ptr, n)
return err
}
func (d *Decoder) skipBytes(c byte) error {
n, err := d.bytesLen(c)
if err != nil {
return err
}
if n <= 0 {
return nil
}
return d.skipN(n)
}
func decodeBytesValue(d *Decoder, v reflect.Value) error {
c, err := d.readCode()
if err != nil {
return err
}
b, err := d.bytes(c, v.Bytes())
if err != nil {
return err
}
v.SetBytes(b)
return nil
}
func decodeByteArrayValue(d *Decoder, v reflect.Value) error {
c, err := d.readCode()
if err != nil {
return err
}
n, err := d.bytesLen(c)
if err != nil {
return err
}
if n == -1 {
return nil
}
if n > v.Len() {
return fmt.Errorf("%s len is %d, but msgpack has %d elements", v.Type(), v.Len(), n)
}
b := v.Slice(0, n).Bytes()
return d.readFull(b)
}