You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
1.3 KiB
71 lines
1.3 KiB
package bin |
|
|
|
import ( |
|
"io" |
|
) |
|
|
|
// Buffer implements low level binary (de-)serialization for TL. |
|
type Buffer struct { |
|
Buf []byte |
|
} |
|
|
|
// Encode wrapper. |
|
func (b *Buffer) Encode(e Encoder) error { |
|
return e.Encode(b) |
|
} |
|
|
|
// Decode wrapper. |
|
func (b *Buffer) Decode(d Decoder) error { |
|
return d.Decode(b) |
|
} |
|
|
|
// ResetN resets buffer and expands it to fit n bytes. |
|
func (b *Buffer) ResetN(n int) { |
|
b.Buf = append(b.Buf[:0], make([]byte, n)...) |
|
} |
|
|
|
// Expand expands buffer to add n bytes. |
|
func (b *Buffer) Expand(n int) { |
|
b.Buf = append(b.Buf, make([]byte, n)...) |
|
} |
|
|
|
// Skip moves cursor for next n bytes. |
|
func (b *Buffer) Skip(n int) { |
|
b.Buf = b.Buf[n:] |
|
} |
|
|
|
// Read implements io.Reader. |
|
func (b *Buffer) Read(p []byte) (n int, err error) { |
|
if len(p) == 0 { |
|
return 0, nil |
|
} |
|
if len(b.Buf) == 0 { |
|
return 0, io.EOF |
|
} |
|
n = copy(p, b.Buf) |
|
b.Buf = b.Buf[n:] |
|
return n, nil |
|
} |
|
|
|
// Copy returns new copy of buffer. |
|
func (b *Buffer) Copy() []byte { |
|
return append([]byte{}, b.Buf...) |
|
} |
|
|
|
// Raw returns internal byte slice. |
|
func (b Buffer) Raw() []byte { |
|
return b.Buf |
|
} |
|
|
|
// Len returns length of internal buffer. |
|
func (b Buffer) Len() int { |
|
return len(b.Buf) |
|
} |
|
|
|
// ResetTo sets internal buffer exactly to provided value. |
|
// |
|
// Buffer will retain buf, so user should not modify or read it |
|
// concurrently. |
|
func (b *Buffer) ResetTo(buf []byte) { |
|
b.Buf = buf |
|
}
|
|
|