3f047be5aa
All code outside of cmd/ is licensed as LGPL. The headers now reflect this by calling the whole work "the go-ethereum library".
65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
// Copyright 2015 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// go-ethereum is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
// +build none
|
|
//sed -e 's/_N_/Hash/g' -e 's/_S_/32/g' -e '1d' types_template.go | gofmt -w hash.go
|
|
|
|
package common
|
|
|
|
import "math/big"
|
|
|
|
type _N_ [_S_]byte
|
|
|
|
func BytesTo_N_(b []byte) _N_ {
|
|
var h _N_
|
|
h.SetBytes(b)
|
|
return h
|
|
}
|
|
func StringTo_N_(s string) _N_ { return BytesTo_N_([]byte(s)) }
|
|
func BigTo_N_(b *big.Int) _N_ { return BytesTo_N_(b.Bytes()) }
|
|
func HexTo_N_(s string) _N_ { return BytesTo_N_(FromHex(s)) }
|
|
|
|
// Don't use the default 'String' method in case we want to overwrite
|
|
|
|
// Get the string representation of the underlying hash
|
|
func (h _N_) Str() string { return string(h[:]) }
|
|
func (h _N_) Bytes() []byte { return h[:] }
|
|
func (h _N_) Big() *big.Int { return Bytes2Big(h[:]) }
|
|
func (h _N_) Hex() string { return "0x" + Bytes2Hex(h[:]) }
|
|
|
|
// Sets the hash to the value of b. If b is larger than len(h) it will panic
|
|
func (h *_N_) SetBytes(b []byte) {
|
|
// Use the right most bytes
|
|
if len(b) > len(h) {
|
|
b = b[len(b)-_S_:]
|
|
}
|
|
|
|
// Reverse the loop
|
|
for i := len(b) - 1; i >= 0; i-- {
|
|
h[_S_-len(b)+i] = b[i]
|
|
}
|
|
}
|
|
|
|
// Set string `s` to h. If s is larger than len(h) it will panic
|
|
func (h *_N_) SetString(s string) { h.SetBytes([]byte(s)) }
|
|
|
|
// Sets h to other
|
|
func (h *_N_) Set(other _N_) {
|
|
for i, v := range other {
|
|
h[i] = v
|
|
}
|
|
}
|