mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 10:02:47 +00:00
296 lines
5.6 KiB
Go
296 lines
5.6 KiB
Go
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package msgpack
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import (
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"fmt"
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"math"
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"reflect"
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"github.com/vmihailenco/msgpack/v5/msgpcode"
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)
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func (d *Decoder) skipN(n int) error {
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_, err := d.readN(n)
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return err
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}
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func (d *Decoder) uint8() (uint8, error) {
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c, err := d.readCode()
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if err != nil {
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return 0, err
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}
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return c, nil
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}
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func (d *Decoder) int8() (int8, error) {
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n, err := d.uint8()
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return int8(n), err
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}
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func (d *Decoder) uint16() (uint16, error) {
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b, err := d.readN(2)
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if err != nil {
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return 0, err
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}
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return (uint16(b[0]) << 8) | uint16(b[1]), nil
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}
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func (d *Decoder) int16() (int16, error) {
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n, err := d.uint16()
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return int16(n), err
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}
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func (d *Decoder) uint32() (uint32, error) {
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b, err := d.readN(4)
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if err != nil {
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return 0, err
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}
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n := (uint32(b[0]) << 24) |
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(uint32(b[1]) << 16) |
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(uint32(b[2]) << 8) |
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uint32(b[3])
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return n, nil
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}
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func (d *Decoder) int32() (int32, error) {
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n, err := d.uint32()
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return int32(n), err
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}
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func (d *Decoder) uint64() (uint64, error) {
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b, err := d.readN(8)
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if err != nil {
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return 0, err
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}
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n := (uint64(b[0]) << 56) |
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(uint64(b[1]) << 48) |
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(uint64(b[2]) << 40) |
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(uint64(b[3]) << 32) |
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(uint64(b[4]) << 24) |
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(uint64(b[5]) << 16) |
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(uint64(b[6]) << 8) |
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uint64(b[7])
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return n, nil
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}
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func (d *Decoder) int64() (int64, error) {
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n, err := d.uint64()
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return int64(n), err
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}
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// DecodeUint64 decodes msgpack int8/16/32/64 and uint8/16/32/64
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// into Go uint64.
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func (d *Decoder) DecodeUint64() (uint64, error) {
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c, err := d.readCode()
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if err != nil {
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return 0, err
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}
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return d.uint(c)
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}
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func (d *Decoder) uint(c byte) (uint64, error) {
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if c == msgpcode.Nil {
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return 0, nil
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}
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if msgpcode.IsFixedNum(c) {
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return uint64(int8(c)), nil
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}
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switch c {
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case msgpcode.Uint8:
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n, err := d.uint8()
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return uint64(n), err
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case msgpcode.Int8:
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n, err := d.int8()
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return uint64(n), err
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case msgpcode.Uint16:
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n, err := d.uint16()
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return uint64(n), err
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case msgpcode.Int16:
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n, err := d.int16()
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return uint64(n), err
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case msgpcode.Uint32:
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n, err := d.uint32()
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return uint64(n), err
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case msgpcode.Int32:
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n, err := d.int32()
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return uint64(n), err
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case msgpcode.Uint64, msgpcode.Int64:
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return d.uint64()
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}
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return 0, fmt.Errorf("msgpack: invalid code=%x decoding uint64", c)
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}
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// DecodeInt64 decodes msgpack int8/16/32/64 and uint8/16/32/64
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// into Go int64.
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func (d *Decoder) DecodeInt64() (int64, error) {
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c, err := d.readCode()
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if err != nil {
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return 0, err
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}
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return d.int(c)
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}
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func (d *Decoder) int(c byte) (int64, error) {
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if c == msgpcode.Nil {
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return 0, nil
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}
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if msgpcode.IsFixedNum(c) {
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return int64(int8(c)), nil
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}
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switch c {
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case msgpcode.Uint8:
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n, err := d.uint8()
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return int64(n), err
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case msgpcode.Int8:
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n, err := d.uint8()
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return int64(int8(n)), err
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case msgpcode.Uint16:
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n, err := d.uint16()
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return int64(n), err
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case msgpcode.Int16:
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n, err := d.uint16()
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return int64(int16(n)), err
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case msgpcode.Uint32:
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n, err := d.uint32()
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return int64(n), err
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case msgpcode.Int32:
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n, err := d.uint32()
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return int64(int32(n)), err
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case msgpcode.Uint64, msgpcode.Int64:
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n, err := d.uint64()
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return int64(n), err
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}
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return 0, fmt.Errorf("msgpack: invalid code=%x decoding int64", c)
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}
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func (d *Decoder) DecodeFloat32() (float32, error) {
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c, err := d.readCode()
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if err != nil {
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return 0, err
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}
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return d.float32(c)
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}
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func (d *Decoder) float32(c byte) (float32, error) {
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if c == msgpcode.Float {
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n, err := d.uint32()
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if err != nil {
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return 0, err
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}
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return math.Float32frombits(n), nil
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}
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n, err := d.int(c)
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if err != nil {
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return 0, fmt.Errorf("msgpack: invalid code=%x decoding float32", c)
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}
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return float32(n), nil
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}
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// DecodeFloat64 decodes msgpack float32/64 into Go float64.
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func (d *Decoder) DecodeFloat64() (float64, error) {
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c, err := d.readCode()
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if err != nil {
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return 0, err
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}
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return d.float64(c)
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}
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func (d *Decoder) float64(c byte) (float64, error) {
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switch c {
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case msgpcode.Float:
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n, err := d.float32(c)
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if err != nil {
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return 0, err
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}
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return float64(n), nil
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case msgpcode.Double:
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n, err := d.uint64()
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if err != nil {
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return 0, err
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}
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return math.Float64frombits(n), nil
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}
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n, err := d.int(c)
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if err != nil {
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return 0, fmt.Errorf("msgpack: invalid code=%x decoding float32", c)
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}
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return float64(n), nil
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}
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func (d *Decoder) DecodeUint() (uint, error) {
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n, err := d.DecodeUint64()
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return uint(n), err
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}
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func (d *Decoder) DecodeUint8() (uint8, error) {
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n, err := d.DecodeUint64()
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return uint8(n), err
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}
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func (d *Decoder) DecodeUint16() (uint16, error) {
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n, err := d.DecodeUint64()
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return uint16(n), err
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}
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func (d *Decoder) DecodeUint32() (uint32, error) {
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n, err := d.DecodeUint64()
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return uint32(n), err
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}
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func (d *Decoder) DecodeInt() (int, error) {
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n, err := d.DecodeInt64()
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return int(n), err
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}
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func (d *Decoder) DecodeInt8() (int8, error) {
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n, err := d.DecodeInt64()
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return int8(n), err
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}
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func (d *Decoder) DecodeInt16() (int16, error) {
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n, err := d.DecodeInt64()
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return int16(n), err
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}
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func (d *Decoder) DecodeInt32() (int32, error) {
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n, err := d.DecodeInt64()
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return int32(n), err
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}
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func decodeFloat32Value(d *Decoder, v reflect.Value) error {
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f, err := d.DecodeFloat32()
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if err != nil {
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return err
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}
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v.SetFloat(float64(f))
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return nil
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}
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func decodeFloat64Value(d *Decoder, v reflect.Value) error {
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f, err := d.DecodeFloat64()
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if err != nil {
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return err
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}
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v.SetFloat(f)
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return nil
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}
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func decodeInt64Value(d *Decoder, v reflect.Value) error {
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n, err := d.DecodeInt64()
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if err != nil {
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return err
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}
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v.SetInt(n)
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return nil
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}
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func decodeUint64Value(d *Decoder, v reflect.Value) error {
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n, err := d.DecodeUint64()
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if err != nil {
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return err
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}
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v.SetUint(n)
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return nil
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}
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