mirror of
https://github.com/luxfi/node.git
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zeekay
7cf87b230b
The module already called itself github.com/luxfi/node while containing no node in Go: cmd/luxd was twenty-one lines that printed the size of a few types, and the Go column of the matrix measured a VM plugin. A repo that fetches the thing it claims to be has not replaced it, so the Go sources move in — 1515 files, the daemon and everything under it — and the build reaches outside this module for nothing. Rust and C++ sit beside it unchanged and are still measured against it by the differential. That is the point of one repo: the reference implementation and the two ports are the same checkout, so parity is a thing you can run rather than a thing you assert. Verified: builds, and the closure carries no lux-private — checked at build time rather than believed. The daemon starts twelve chains on a local network (P X C Q Z A B G K M F, plus D through its plugin) and reports healthy.
102 lines
2.5 KiB
Go
102 lines
2.5 KiB
Go
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package lux
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import (
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"bytes"
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"cmp"
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"errors"
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"fmt"
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"strconv"
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"strings"
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"github.com/luxfi/ids"
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"github.com/luxfi/node/vms/components/verify"
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"github.com/luxfi/util"
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)
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var (
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errNilUTXOID = errors.New("nil utxo ID is not valid")
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errMalformedUTXOIDString = errors.New("unexpected number of tokens in string")
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errFailedDecodingUTXOIDTxID = errors.New("failed decoding UTXOID TxID")
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errFailedDecodingUTXOIDIndex = errors.New("failed decoding UTXOID index")
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_ verify.Verifiable = (*UTXOID)(nil)
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_ utils.Sortable[*UTXOID] = (*UTXOID)(nil)
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)
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type UTXOID struct {
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// Serialized:
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TxID ids.ID `serialize:"true" json:"txID"`
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OutputIndex uint32 `serialize:"true" json:"outputIndex"`
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// Symbol is false if the UTXO should be part of the DB
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Symbol bool `json:"-"`
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// id is the unique ID of a UTXO, it is calculated from TxID and OutputIndex
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id ids.ID
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}
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// InputSource returns the source of the UTXO that this input is spending
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func (utxo *UTXOID) InputSource() (ids.ID, uint32) {
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return utxo.TxID, utxo.OutputIndex
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}
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// InputID returns a unique ID of the UTXO that this input is spending
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func (utxo *UTXOID) InputID() ids.ID {
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if utxo.id == ids.Empty {
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utxo.id = utxo.TxID.Prefix(uint64(utxo.OutputIndex))
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}
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return utxo.id
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}
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// Symbolic returns if this is the ID of a UTXO in the DB, or if it is a
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// symbolic input
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func (utxo *UTXOID) Symbolic() bool {
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return utxo.Symbol
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}
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func (utxo *UTXOID) String() string {
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return fmt.Sprintf("%s:%d", utxo.TxID, utxo.OutputIndex)
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}
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// UTXOIDFromString attempts to parse a string into a UTXOID
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func UTXOIDFromString(s string) (*UTXOID, error) {
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ss := strings.Split(s, ":")
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if len(ss) != 2 {
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return nil, errMalformedUTXOIDString
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}
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txID, err := ids.FromString(ss[0])
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if err != nil {
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return nil, fmt.Errorf("%w: %w", errFailedDecodingUTXOIDTxID, err)
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}
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idx, err := strconv.ParseUint(ss[1], 10, 32)
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if err != nil {
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return nil, fmt.Errorf("%w: %w", errFailedDecodingUTXOIDIndex, err)
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}
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return &UTXOID{
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TxID: txID,
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OutputIndex: uint32(idx),
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}, nil
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}
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func (utxo *UTXOID) Verify() error {
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if utxo == nil {
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return errNilUTXOID
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}
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return nil
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}
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func (utxo *UTXOID) Compare(other *UTXOID) int {
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utxoID, utxoIndex := utxo.InputSource()
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otherID, otherIndex := other.InputSource()
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if txIDComp := bytes.Compare(utxoID[:], otherID[:]); txIDComp != 0 {
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return txIDComp
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}
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return cmp.Compare(utxoIndex, otherIndex)
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}
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