forked from TrueCloudLab/neoneo-go
a67728628e
* Created test_data folder with block json files for testing + create separate file for block base. * Fixed bug in WriteVarUint + Trim logic + unit tests * Refactored store and add more tests for it. * restore headerList from chain file * Fix tx decode bug + lots of housekeeping. * Implemented Node restore state from chain file. * Created standalone package for storage. Added couple more methods to Batch and Store interfaces. * Block persisting + tests * bumped version -> 0.31.0
58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package util
|
|
|
|
import (
|
|
"encoding/hex"
|
|
"fmt"
|
|
)
|
|
|
|
const uint160Size = 20
|
|
|
|
// Uint160 is a 20 byte long unsigned integer.
|
|
type Uint160 [uint160Size]uint8
|
|
|
|
// Uint160DecodeString attempts to decode the given string into an Uint160.
|
|
func Uint160DecodeString(s string) (u Uint160, err error) {
|
|
if len(s) != uint160Size*2 {
|
|
return u, fmt.Errorf("expected string size of %d got %d", uint160Size*2, len(s))
|
|
}
|
|
b, err := hex.DecodeString(s)
|
|
if err != nil {
|
|
return u, err
|
|
}
|
|
return Uint160DecodeBytes(b)
|
|
}
|
|
|
|
// Uint160DecodeBytes attempts to decode the given bytes into an Uint160.
|
|
func Uint160DecodeBytes(b []byte) (u Uint160, err error) {
|
|
if len(b) != uint160Size {
|
|
return u, fmt.Errorf("expected byte size of %d got %d", uint160Size, len(b))
|
|
}
|
|
for i := 0; i < uint160Size; i++ {
|
|
u[i] = b[i]
|
|
}
|
|
return
|
|
}
|
|
|
|
// Bytes returns the byte slice representation of u.
|
|
func (u Uint160) Bytes() []byte {
|
|
b := make([]byte, uint160Size)
|
|
for i := 0; i < uint160Size; i++ {
|
|
b[i] = byte(u[i])
|
|
}
|
|
return b
|
|
}
|
|
|
|
// String implements the stringer interface.
|
|
func (u Uint160) String() string {
|
|
return hex.EncodeToString(u.Bytes())
|
|
}
|
|
|
|
// Equals returns true if both Uint256 values are the same.
|
|
func (u Uint160) Equals(other Uint160) bool {
|
|
for i := 0; i < uint160Size; i++ {
|
|
if u[i] != other[i] {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|