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Diffstat (limited to 'src/pkg/debug/binary/binary.go')
-rw-r--r--src/pkg/debug/binary/binary.go222
1 files changed, 0 insertions, 222 deletions
diff --git a/src/pkg/debug/binary/binary.go b/src/pkg/debug/binary/binary.go
deleted file mode 100644
index 836a43df09..0000000000
--- a/src/pkg/debug/binary/binary.go
+++ /dev/null
@@ -1,222 +0,0 @@
-// Copyright 2009 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.
-
-// This package implements translation between
-// unsigned integer values and byte sequences.
-package binary
-
-import (
- "math";
- "io";
- "os";
- "reflect";
-)
-
-// A ByteOrder specifies how to convert byte sequences into
-// 16-, 32-, or 64-bit unsigned integers.
-type ByteOrder interface {
- Uint16(b []byte) uint16;
- Uint32(b []byte) uint32;
- Uint64(b []byte) uint64;
- String() string;
-}
-
-// This is byte instead of struct{} so that it can be compared,
-// allowing, e.g., order == binary.LittleEndian.
-type unused byte
-
-var LittleEndian ByteOrder = littleEndian(0)
-var BigEndian ByteOrder = bigEndian(0)
-
-type littleEndian unused
-
-func (littleEndian) Uint16(b []byte) uint16 {
- return uint16(b[0]) | uint16(b[1])<<8;
-}
-
-func (littleEndian) Uint32(b []byte) uint32 {
- return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24;
-}
-
-func (littleEndian) Uint64(b []byte) uint64 {
- return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
- uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56;
-}
-
-func (littleEndian) String() string {
- return "LittleEndian";
-}
-
-func (littleEndian) GoString() string {
- return "binary.LittleEndian";
-}
-
-type bigEndian unused
-
-func (bigEndian) Uint16(b []byte) uint16 {
- return uint16(b[1]) | uint16(b[0])<<8;
-}
-
-func (bigEndian) Uint32(b []byte) uint32 {
- return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24;
-}
-
-func (bigEndian) Uint64(b []byte) uint64 {
- return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
- uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56;
-}
-
-func (bigEndian) String() string {
- return "BigEndian";
-}
-
-func (bigEndian) GoString() string {
- return "binary.BigEndian";
-}
-
-// Read reads structured binary data from r into data.
-// Data must be a pointer to a fixed-size value.
-// A fixed-size value is either a fixed-size integer
-// (int8, uint8, int16, uint16, ...) or an array or struct
-// containing only fixed-size values. Bytes read from
-// r are decoded using order and written to successive
-// fields of the data.
-func Read(r io.Reader, order ByteOrder, data interface{}) os.Error {
- v := reflect.NewValue(data).(*reflect.PtrValue).Elem();
- size := sizeof(v.Type());
- if size < 0 {
- return os.NewError("binary.Read: invalid type " + v.Type().String());
- }
- d := &decoder{order: order, buf: make([]byte, size)};
- if _, err := io.ReadFull(r, d.buf); err != nil {
- return err;
- }
- d.value(v);
- return nil;
-}
-
-func sizeof(t reflect.Type) int {
- switch t := t.(type) {
- case *reflect.ArrayType:
- n := sizeof(t.Elem());
- if n < 0 {
- return -1;
- }
- return t.Len() * n;
-
- case *reflect.StructType:
- sum := 0;
- for i, n := 0, t.NumField(); i < n; i++ {
- s := sizeof(t.Field(i).Type);
- if s < 0 {
- return -1;
- }
- sum += s;
- }
- return sum;
-
- case *reflect.Uint8Type:
- return 1;
- case *reflect.Uint16Type:
- return 2;
- case *reflect.Uint32Type:
- return 4;
- case *reflect.Uint64Type:
- return 8;
- case *reflect.Int8Type:
- return 1;
- case *reflect.Int16Type:
- return 2;
- case *reflect.Int32Type:
- return 4;
- case *reflect.Int64Type:
- return 8;
- case *reflect.Float32Type:
- return 4;
- case *reflect.Float64Type:
- return 8;
- }
- return -1;
-}
-
-type decoder struct {
- order ByteOrder;
- buf []byte;
-}
-
-func (d *decoder) uint8() uint8 {
- x := d.buf[0];
- d.buf = d.buf[1:len(d.buf)];
- return x;
-}
-
-func (d *decoder) uint16() uint16 {
- x := d.order.Uint16(d.buf[0:2]);
- d.buf = d.buf[2:len(d.buf)];
- return x;
-}
-
-func (d *decoder) uint32() uint32 {
- x := d.order.Uint32(d.buf[0:4]);
- d.buf = d.buf[4:len(d.buf)];
- return x;
-}
-
-func (d *decoder) uint64() uint64 {
- x := d.order.Uint64(d.buf[0:8]);
- d.buf = d.buf[8:len(d.buf)];
- return x;
-}
-
-func (d *decoder) int8() int8 {
- return int8(d.uint8());
-}
-
-func (d *decoder) int16() int16 {
- return int16(d.uint16());
-}
-
-func (d *decoder) int32() int32 {
- return int32(d.uint32());
-}
-
-func (d *decoder) int64() int64 {
- return int64(d.uint64());
-}
-
-func (d *decoder) value(v reflect.Value) {
- switch v := v.(type) {
- case *reflect.ArrayValue:
- l := v.Len();
- for i := 0; i < l; i++ {
- d.value(v.Elem(i));
- }
- case *reflect.StructValue:
- l := v.NumField();
- for i := 0; i < l; i++ {
- d.value(v.Field(i));
- }
-
- case *reflect.Uint8Value:
- v.Set(d.uint8());
- case *reflect.Uint16Value:
- v.Set(d.uint16());
- case *reflect.Uint32Value:
- v.Set(d.uint32());
- case *reflect.Uint64Value:
- v.Set(d.uint64());
- case *reflect.Int8Value:
- v.Set(d.int8());
- case *reflect.Int16Value:
- v.Set(d.int16());
- case *reflect.Int32Value:
- v.Set(d.int32());
- case *reflect.Int64Value:
- v.Set(d.int64());
- case *reflect.Float32Value:
- v.Set(math.Float32frombits(d.uint32()));
- case *reflect.Float64Value:
- v.Set(math.Float64frombits(d.uint64()));
- }
-}