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package common
type (
Hash [32]byte
Address [20]byte
)
var (
zeroHash Hash
zeroAddress Address
)
func BytesToHash(b []byte) Hash {
var h Hash
h.SetBytes(b)
return h
}
func StringToHash(s string) Hash { return BytesToHash([]byte(s)) }
func BytesToAddress(b []byte) Address {
var a Address
a.SetBytes(b)
return a
}
func StringToAddress(s string) Address { return BytesToAddress([]byte(s)) }
// Don't use the default 'String' method in case we want to overwrite
// Get the string representation of the underlying hash
func (h Hash) Str() string {
return string(h[:])
}
// Sets the hash to the value of b. If b is larger than len(h) it will panic
func (h Hash) SetBytes(b []byte) {
if len(b) > len(h) {
panic("unable to set bytes. too big")
}
// reverse loop
for i := len(b); i >= 0; i-- {
h[i] = b[i]
}
}
// Set string `s` to h. If s is larger than len(h) it will panic
func (h Hash) SetString(s string) { h.SetBytes([]byte(s)) }
// Sets h to other
func (h Hash) Set(other Hash) {
for i, v := range other {
h[i] = v
}
}
// Get the string representation of the underlying address
func (a Address) Str() string {
return string(a[:])
}
// Sets the address to the value of b. If b is larger than len(a) it will panic
func (a Address) SetBytes(b []byte) {
if len(b) > len(a) {
panic("unable to set bytes. too big")
}
// reverse loop
for i := len(b); i >= 0; i-- {
a[i] = b[i]
}
}
// Set string `s` to a. If s is larger than len(a) it will panic
func (a Address) SetString(s string) { a.SetBytes([]byte(s)) }
// Sets a to other
func (a Address) Set(other Address) {
for i, v := range other {
a[i] = v
}
}
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