956fd08adb
Add a method that makes a deep copy of all fields and resets size/hash caches. Close #3288 Signed-off-by: Ekaterina Pavlova <ekt@morphbits.io>
50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
package transaction
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import (
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"bytes"
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"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/util"
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)
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const (
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// MaxInvocationScript is the maximum length of allowed invocation
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// script. It should fit 11/21 multisignature for the committee.
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MaxInvocationScript = 1024
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// MaxVerificationScript is the maximum allowed length of verification
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// script. It should be appropriate for 11/21 multisignature committee.
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MaxVerificationScript = 1024
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)
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// Witness contains 2 scripts.
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type Witness struct {
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InvocationScript []byte `json:"invocation"`
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VerificationScript []byte `json:"verification"`
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}
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// DecodeBinary implements the Serializable interface.
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func (w *Witness) DecodeBinary(br *io.BinReader) {
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w.InvocationScript = br.ReadVarBytes(MaxInvocationScript)
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w.VerificationScript = br.ReadVarBytes(MaxVerificationScript)
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}
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// EncodeBinary implements the Serializable interface.
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func (w *Witness) EncodeBinary(bw *io.BinWriter) {
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bw.WriteVarBytes(w.InvocationScript)
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bw.WriteVarBytes(w.VerificationScript)
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}
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// ScriptHash returns the hash of the VerificationScript.
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func (w Witness) ScriptHash() util.Uint160 {
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return hash.Hash160(w.VerificationScript)
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}
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// Copy creates a deep copy of the Witness.
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func (w Witness) Copy() Witness {
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return Witness{
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InvocationScript: bytes.Clone(w.InvocationScript),
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VerificationScript: bytes.Clone(w.VerificationScript),
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}
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}
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