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112 lines
2.9 KiB
Go
112 lines
2.9 KiB
Go
package ext
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import (
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"reflect"
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)
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type Encoder interface {
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Code() int8
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Type() reflect.Type
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CalcByteSize(value reflect.Value) (int, error)
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WriteToBytes(value reflect.Value, offset int, bytes *[]byte) int
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}
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type EncoderCommon struct {
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}
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func (c *EncoderCommon) SetByte1Int64(value int64, offset int, d *[]byte) int {
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(*d)[offset] = byte(value)
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return offset + 1
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}
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func (c *EncoderCommon) SetByte2Int64(value int64, offset int, d *[]byte) int {
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(*d)[offset+0] = byte(value >> 8)
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(*d)[offset+1] = byte(value)
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return offset + 2
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}
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func (c *EncoderCommon) SetByte4Int64(value int64, offset int, d *[]byte) int {
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(*d)[offset+0] = byte(value >> 24)
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(*d)[offset+1] = byte(value >> 16)
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(*d)[offset+2] = byte(value >> 8)
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(*d)[offset+3] = byte(value)
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return offset + 4
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}
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func (c *EncoderCommon) SetByte8Int64(value int64, offset int, d *[]byte) int {
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(*d)[offset] = byte(value >> 56)
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(*d)[offset+1] = byte(value >> 48)
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(*d)[offset+2] = byte(value >> 40)
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(*d)[offset+3] = byte(value >> 32)
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(*d)[offset+4] = byte(value >> 24)
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(*d)[offset+5] = byte(value >> 16)
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(*d)[offset+6] = byte(value >> 8)
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(*d)[offset+7] = byte(value)
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return offset + 8
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}
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func (c *EncoderCommon) SetByte1Uint64(value uint64, offset int, d *[]byte) int {
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(*d)[offset] = byte(value)
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return offset + 1
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}
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func (c *EncoderCommon) SetByte2Uint64(value uint64, offset int, d *[]byte) int {
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(*d)[offset] = byte(value >> 8)
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(*d)[offset+1] = byte(value)
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return offset + 2
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}
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func (c *EncoderCommon) SetByte4Uint64(value uint64, offset int, d *[]byte) int {
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(*d)[offset] = byte(value >> 24)
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(*d)[offset+1] = byte(value >> 16)
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(*d)[offset+2] = byte(value >> 8)
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(*d)[offset+3] = byte(value)
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return offset + 4
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}
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func (c *EncoderCommon) SetByte8Uint64(value uint64, offset int, d *[]byte) int {
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(*d)[offset] = byte(value >> 56)
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(*d)[offset+1] = byte(value >> 48)
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(*d)[offset+2] = byte(value >> 40)
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(*d)[offset+3] = byte(value >> 32)
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(*d)[offset+4] = byte(value >> 24)
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(*d)[offset+5] = byte(value >> 16)
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(*d)[offset+6] = byte(value >> 8)
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(*d)[offset+7] = byte(value)
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return offset + 8
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}
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func (c *EncoderCommon) SetByte1Int(code, offset int, d *[]byte) int {
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(*d)[offset] = byte(code)
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return offset + 1
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}
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func (c *EncoderCommon) SetByte2Int(value int, offset int, d *[]byte) int {
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(*d)[offset] = byte(value >> 8)
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(*d)[offset+1] = byte(value)
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return offset + 2
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}
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func (c *EncoderCommon) SetByte4Int(value int, offset int, d *[]byte) int {
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(*d)[offset] = byte(value >> 24)
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(*d)[offset+1] = byte(value >> 16)
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(*d)[offset+2] = byte(value >> 8)
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(*d)[offset+3] = byte(value)
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return offset + 4
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}
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func (c *EncoderCommon) SetByte4Uint32(value uint32, offset int, d *[]byte) int {
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(*d)[offset] = byte(value >> 24)
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(*d)[offset+1] = byte(value >> 16)
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(*d)[offset+2] = byte(value >> 8)
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(*d)[offset+3] = byte(value)
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return offset + 4
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}
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func (c *EncoderCommon) SetBytes(bs []byte, offset int, d *[]byte) int {
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for i := range bs {
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(*d)[offset+i] = bs[i]
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}
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return offset + len(bs)
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}
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