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80 lines
1.7 KiB
80 lines
1.7 KiB
package binary
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import "io"
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import "bytes"
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type String string
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type ByteSlice []byte
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// String
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func (self String) Equals(other Binary) bool {
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return self == other
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}
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func (self String) Less(other Binary) bool {
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if o, ok := other.(String); ok {
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return self < o
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} else {
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panic("Cannot compare unequal types")
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}
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}
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func (self String) ByteSize() int {
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return len(self)+4
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}
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func (self String) WriteTo(w io.Writer) (n int64, err error) {
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var n_ int
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_, err = UInt32(len(self)).WriteTo(w)
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if err != nil { return n, err }
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n_, err = w.Write([]byte(self))
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return int64(n_+4), err
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}
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func ReadString(r io.Reader) String {
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length := int(ReadUInt32(r))
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bytes := make([]byte, length)
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_, err := io.ReadFull(r, bytes)
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if err != nil { panic(err) }
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return String(bytes)
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}
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// ByteSlice
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func (self ByteSlice) Equals(other Binary) bool {
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if o, ok := other.(ByteSlice); ok {
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return bytes.Equal(self, o)
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} else {
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return false
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}
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}
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func (self ByteSlice) Less(other Binary) bool {
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if o, ok := other.(ByteSlice); ok {
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return bytes.Compare(self, o) < 0 // -1 if a < b
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} else {
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panic("Cannot compare unequal types")
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}
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}
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func (self ByteSlice) ByteSize() int {
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return len(self)+4
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}
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func (self ByteSlice) WriteTo(w io.Writer) (n int64, err error) {
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var n_ int
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_, err = UInt32(len(self)).WriteTo(w)
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if err != nil { return n, err }
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n_, err = w.Write([]byte(self))
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return int64(n_+4), err
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}
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func ReadByteSlice(r io.Reader) ByteSlice {
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length := int(ReadUInt32(r))
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bytes := make([]byte, length)
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_, err := io.ReadFull(r, bytes)
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if err != nil { panic(err) }
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return ByteSlice(bytes)
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}
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