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34 lines
1.2 KiB
Go
34 lines
1.2 KiB
Go
package address
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import (
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"github.com/nspcc-dev/neo-go/pkg/interop"
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"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
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"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
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)
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// ToHash160 is a utility function that converts a Neo address to its hash
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// (160 bit BE value in a 20 byte slice). When parameter is known at compile time
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// (it's a constant string) the output is calculated by the compiler and this
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// function is optimized out completely. Otherwise, standard library and system
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// calls are used to perform the conversion and checks (panic will happen on
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// invalid input).
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func ToHash160(address string) interop.Hash160 {
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b := std.Base58CheckDecode([]byte(address))
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if len(b) != interop.Hash160Len+1 {
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panic("invalid address length")
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}
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if int(b[0]) != runtime.GetAddressVersion() {
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panic("invalid address prefix")
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}
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return b[1:21]
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}
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// FromHash160 is a utility function that converts given Hash160 to
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// Base58-encoded Neo address.
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func FromHash160(hash interop.Hash160) string {
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if len(hash) != interop.Hash160Len {
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panic("invalid Hash160 length")
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}
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res := append([]byte{byte(runtime.GetAddressVersion())}, hash...)
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return std.Base58CheckEncode(res)
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}
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