1 files changed, 0 insertions, 144 deletions
diff --git a/src/pkg/bytes/reader.go b/src/pkg/bytes/reader.go
deleted file mode 100644
index d2d40fa7c..000000000
--- a/src/pkg/bytes/reader.go
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bytes
-
-import (
-	"errors"
-	"io"
-	"unicode/utf8"
-)
-
-// A Reader implements the io.Reader, io.ReaderAt, io.WriterTo, io.Seeker,
-// io.ByteScanner, and io.RuneScanner interfaces by reading from
-// a byte slice.
-// Unlike a Buffer, a Reader is read-only and supports seeking.
-type Reader struct {
-	s        []byte
-	i        int64 // current reading index
-	prevRune int   // index of previous rune; or < 0
-}
-
-// Len returns the number of bytes of the unread portion of the
-// slice.
-func (r *Reader) Len() int {
-	if r.i >= int64(len(r.s)) {
-		return 0
-	}
-	return int(int64(len(r.s)) - r.i)
-}
-
-func (r *Reader) Read(b []byte) (n int, err error) {
-	if len(b) == 0 {
-		return 0, nil
-	}
-	if r.i >= int64(len(r.s)) {
-		return 0, io.EOF
-	}
-	r.prevRune = -1
-	n = copy(b, r.s[r.i:])
-	r.i += int64(n)
-	return
-}
-
-func (r *Reader) ReadAt(b []byte, off int64) (n int, err error) {
-	// cannot modify state - see io.ReaderAt
-	if off < 0 {
-		return 0, errors.New("bytes.Reader.ReadAt: negative offset")
-	}
-	if off >= int64(len(r.s)) {
-		return 0, io.EOF
-	}
-	n = copy(b, r.s[off:])
-	if n < len(b) {
-		err = io.EOF
-	}
-	return
-}
-
-func (r *Reader) ReadByte() (b byte, err error) {
-	r.prevRune = -1
-	if r.i >= int64(len(r.s)) {
-		return 0, io.EOF
-	}
-	b = r.s[r.i]
-	r.i++
-	return
-}
-
-func (r *Reader) UnreadByte() error {
-	r.prevRune = -1
-	if r.i <= 0 {
-		return errors.New("bytes.Reader.UnreadByte: at beginning of slice")
-	}
-	r.i--
-	return nil
-}
-
-func (r *Reader) ReadRune() (ch rune, size int, err error) {
-	if r.i >= int64(len(r.s)) {
-		r.prevRune = -1
-		return 0, 0, io.EOF
-	}
-	r.prevRune = int(r.i)
-	if c := r.s[r.i]; c < utf8.RuneSelf {
-		r.i++
-		return rune(c), 1, nil
-	}
-	ch, size = utf8.DecodeRune(r.s[r.i:])
-	r.i += int64(size)
-	return
-}
-
-func (r *Reader) UnreadRune() error {
-	if r.prevRune < 0 {
-		return errors.New("bytes.Reader.UnreadRune: previous operation was not ReadRune")
-	}
-	r.i = int64(r.prevRune)
-	r.prevRune = -1
-	return nil
-}
-
-// Seek implements the io.Seeker interface.
-func (r *Reader) Seek(offset int64, whence int) (int64, error) {
-	r.prevRune = -1
-	var abs int64
-	switch whence {
-	case 0:
-		abs = offset
-	case 1:
-		abs = int64(r.i) + offset
-	case 2:
-		abs = int64(len(r.s)) + offset
-	default:
-		return 0, errors.New("bytes.Reader.Seek: invalid whence")
-	}
-	if abs < 0 {
-		return 0, errors.New("bytes.Reader.Seek: negative position")
-	}
-	r.i = abs
-	return abs, nil
-}
-
-// WriteTo implements the io.WriterTo interface.
-func (r *Reader) WriteTo(w io.Writer) (n int64, err error) {
-	r.prevRune = -1
-	if r.i >= int64(len(r.s)) {
-		return 0, nil
-	}
-	b := r.s[r.i:]
-	m, err := w.Write(b)
-	if m > len(b) {
-		panic("bytes.Reader.WriteTo: invalid Write count")
-	}
-	r.i += int64(m)
-	n = int64(m)
-	if m != len(b) && err == nil {
-		err = io.ErrShortWrite
-	}
-	return
-}
-
-// NewReader returns a new Reader reading from b.
-func NewReader(b []byte) *Reader { return &Reader{b, 0, -1} }