19cc6c6369
Notification and its parameters may have any UTF8-compatible name which is inappropriate for bindings configuration and for the resulting RPC bindings file. This commit stores the prettified version of notification's name and parameters that are ready to be used in the resulting RPC binding without any changes. Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
748 lines
18 KiB
Text
748 lines
18 KiB
Text
// Package structs contains RPC wrappers for Notifications contract.
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package structs
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import (
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"crypto/elliptic"
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"errors"
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"fmt"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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"math/big"
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)
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// Hash contains contract hash.
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var Hash = util.Uint160{0x33, 0x22, 0x11, 0x0, 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88, 0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11, 0x0}
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// LedgerBlock is a contract-specific ledger.Block type used by its methods.
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type LedgerBlock struct {
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Hash util.Uint256
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Version *big.Int
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PrevHash util.Uint256
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MerkleRoot util.Uint256
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Timestamp *big.Int
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Nonce *big.Int
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Index *big.Int
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NextConsensus util.Uint160
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TransactionsLength *big.Int
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}
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// LedgerBlockSR is a contract-specific ledger.BlockSR type used by its methods.
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type LedgerBlockSR struct {
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Hash util.Uint256
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Version *big.Int
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PrevHash util.Uint256
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MerkleRoot util.Uint256
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Timestamp *big.Int
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Nonce *big.Int
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Index *big.Int
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NextConsensus util.Uint160
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TransactionsLength *big.Int
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PrevStateRoot util.Uint256
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}
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// LedgerTransaction is a contract-specific ledger.Transaction type used by its methods.
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type LedgerTransaction struct {
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Hash util.Uint256
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Version *big.Int
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Nonce *big.Int
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Sender util.Uint160
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SysFee *big.Int
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NetFee *big.Int
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ValidUntilBlock *big.Int
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Script []byte
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}
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// LedgerTransactionSigner is a contract-specific ledger.TransactionSigner type used by its methods.
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type LedgerTransactionSigner struct {
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Account util.Uint160
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Scopes *big.Int
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AllowedContracts []util.Uint160
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AllowedGroups keys.PublicKeys
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Rules []*LedgerWitnessRule
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}
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// LedgerWitnessCondition is a contract-specific ledger.WitnessCondition type used by its methods.
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type LedgerWitnessCondition struct {
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Type *big.Int
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Value any
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}
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// LedgerWitnessRule is a contract-specific ledger.WitnessRule type used by its methods.
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type LedgerWitnessRule struct {
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Action *big.Int
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Condition *LedgerWitnessCondition
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}
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// ComplicatedNameEvent represents "! complicated name %$#" event emitted by the contract.
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type ComplicatedNameEvent struct {
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ComplicatedParam string
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}
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// Actor is used by Contract to call state-changing methods.
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type Actor interface {
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MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
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MakeRun(script []byte) (*transaction.Transaction, error)
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MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
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MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
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SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
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SendRun(script []byte) (util.Uint256, uint32, error)
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}
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// Contract implements all contract methods.
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type Contract struct {
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actor Actor
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}
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// New creates an instance of Contract using Hash and the given Actor.
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func New(actor Actor) *Contract {
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return &Contract{actor}
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}
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// Main creates a transaction invoking `main` method of the contract.
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// This transaction is signed and immediately sent to the network.
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// The values returned are its hash, ValidUntilBlock value and error if any.
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func (c *Contract) Main() (util.Uint256, uint32, error) {
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return c.actor.SendCall(Hash, "main")
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}
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// MainTransaction creates a transaction invoking `main` method of the contract.
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// This transaction is signed, but not sent to the network, instead it's
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// returned to the caller.
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func (c *Contract) MainTransaction() (*transaction.Transaction, error) {
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return c.actor.MakeCall(Hash, "main")
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}
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// MainUnsigned creates a transaction invoking `main` method of the contract.
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// This transaction is not signed, it's simply returned to the caller.
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// Any fields of it that do not affect fees can be changed (ValidUntilBlock,
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// Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
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func (c *Contract) MainUnsigned() (*transaction.Transaction, error) {
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return c.actor.MakeUnsignedCall(Hash, "main", nil)
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}
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// itemToLedgerBlock converts stack item into *LedgerBlock.
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func itemToLedgerBlock(item stackitem.Item, err error) (*LedgerBlock, error) {
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if err != nil {
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return nil, err
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}
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var res = new(LedgerBlock)
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err = res.FromStackItem(item)
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return res, err
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}
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// FromStackItem retrieves fields of LedgerBlock from the given stack item
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// and returns an error if so.
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func (res *LedgerBlock) FromStackItem(item stackitem.Item) error {
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arr, ok := item.Value().([]stackitem.Item)
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if !ok {
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return errors.New("not an array")
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}
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if len(arr) != 9 {
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return errors.New("wrong number of structure elements")
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}
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var (
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index = -1
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err error
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)
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index++
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res.Hash, err = func (item stackitem.Item) (util.Uint256, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint256{}, err
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}
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u, err := util.Uint256DecodeBytesBE(b)
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if err != nil {
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return util.Uint256{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field Hash: %w", err)
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}
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index++
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res.Version, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Version: %w", err)
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}
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index++
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res.PrevHash, err = func (item stackitem.Item) (util.Uint256, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint256{}, err
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}
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u, err := util.Uint256DecodeBytesBE(b)
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if err != nil {
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return util.Uint256{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field PrevHash: %w", err)
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}
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index++
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res.MerkleRoot, err = func (item stackitem.Item) (util.Uint256, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint256{}, err
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}
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u, err := util.Uint256DecodeBytesBE(b)
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if err != nil {
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return util.Uint256{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field MerkleRoot: %w", err)
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}
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index++
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res.Timestamp, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Timestamp: %w", err)
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}
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index++
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res.Nonce, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Nonce: %w", err)
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}
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index++
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res.Index, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Index: %w", err)
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}
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index++
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res.NextConsensus, err = func (item stackitem.Item) (util.Uint160, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint160{}, err
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}
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u, err := util.Uint160DecodeBytesBE(b)
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if err != nil {
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return util.Uint160{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field NextConsensus: %w", err)
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}
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index++
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res.TransactionsLength, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field TransactionsLength: %w", err)
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}
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return nil
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}
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// itemToLedgerBlockSR converts stack item into *LedgerBlockSR.
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func itemToLedgerBlockSR(item stackitem.Item, err error) (*LedgerBlockSR, error) {
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if err != nil {
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return nil, err
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}
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var res = new(LedgerBlockSR)
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err = res.FromStackItem(item)
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return res, err
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}
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// FromStackItem retrieves fields of LedgerBlockSR from the given stack item
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// and returns an error if so.
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func (res *LedgerBlockSR) FromStackItem(item stackitem.Item) error {
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arr, ok := item.Value().([]stackitem.Item)
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if !ok {
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return errors.New("not an array")
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}
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if len(arr) != 10 {
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return errors.New("wrong number of structure elements")
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}
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var (
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index = -1
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err error
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)
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index++
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res.Hash, err = func (item stackitem.Item) (util.Uint256, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint256{}, err
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}
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u, err := util.Uint256DecodeBytesBE(b)
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if err != nil {
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return util.Uint256{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field Hash: %w", err)
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}
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index++
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res.Version, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Version: %w", err)
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}
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index++
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res.PrevHash, err = func (item stackitem.Item) (util.Uint256, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint256{}, err
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}
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u, err := util.Uint256DecodeBytesBE(b)
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if err != nil {
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return util.Uint256{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field PrevHash: %w", err)
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}
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index++
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res.MerkleRoot, err = func (item stackitem.Item) (util.Uint256, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint256{}, err
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}
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u, err := util.Uint256DecodeBytesBE(b)
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if err != nil {
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return util.Uint256{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field MerkleRoot: %w", err)
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}
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index++
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res.Timestamp, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Timestamp: %w", err)
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}
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index++
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res.Nonce, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Nonce: %w", err)
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}
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index++
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res.Index, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Index: %w", err)
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}
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index++
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res.NextConsensus, err = func (item stackitem.Item) (util.Uint160, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint160{}, err
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}
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u, err := util.Uint160DecodeBytesBE(b)
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if err != nil {
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return util.Uint160{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field NextConsensus: %w", err)
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}
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index++
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res.TransactionsLength, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field TransactionsLength: %w", err)
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}
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index++
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res.PrevStateRoot, err = func (item stackitem.Item) (util.Uint256, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint256{}, err
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}
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u, err := util.Uint256DecodeBytesBE(b)
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if err != nil {
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return util.Uint256{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field PrevStateRoot: %w", err)
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}
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return nil
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}
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// itemToLedgerTransaction converts stack item into *LedgerTransaction.
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func itemToLedgerTransaction(item stackitem.Item, err error) (*LedgerTransaction, error) {
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if err != nil {
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return nil, err
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}
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var res = new(LedgerTransaction)
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err = res.FromStackItem(item)
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return res, err
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}
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// FromStackItem retrieves fields of LedgerTransaction from the given stack item
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// and returns an error if so.
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func (res *LedgerTransaction) FromStackItem(item stackitem.Item) error {
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arr, ok := item.Value().([]stackitem.Item)
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if !ok {
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return errors.New("not an array")
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}
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if len(arr) != 8 {
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return errors.New("wrong number of structure elements")
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}
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var (
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index = -1
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err error
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)
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index++
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res.Hash, err = func (item stackitem.Item) (util.Uint256, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint256{}, err
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}
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u, err := util.Uint256DecodeBytesBE(b)
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if err != nil {
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return util.Uint256{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field Hash: %w", err)
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}
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index++
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res.Version, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Version: %w", err)
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}
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index++
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res.Nonce, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Nonce: %w", err)
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}
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index++
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res.Sender, err = func (item stackitem.Item) (util.Uint160, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint160{}, err
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}
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u, err := util.Uint160DecodeBytesBE(b)
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if err != nil {
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return util.Uint160{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field Sender: %w", err)
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}
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index++
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res.SysFee, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field SysFee: %w", err)
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}
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index++
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res.NetFee, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field NetFee: %w", err)
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}
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index++
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res.ValidUntilBlock, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field ValidUntilBlock: %w", err)
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}
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index++
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res.Script, err = arr[index].TryBytes()
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if err != nil {
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return fmt.Errorf("field Script: %w", err)
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}
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return nil
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}
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// itemToLedgerTransactionSigner converts stack item into *LedgerTransactionSigner.
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func itemToLedgerTransactionSigner(item stackitem.Item, err error) (*LedgerTransactionSigner, error) {
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if err != nil {
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return nil, err
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}
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var res = new(LedgerTransactionSigner)
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err = res.FromStackItem(item)
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return res, err
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}
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// FromStackItem retrieves fields of LedgerTransactionSigner from the given stack item
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// and returns an error if so.
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func (res *LedgerTransactionSigner) FromStackItem(item stackitem.Item) error {
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arr, ok := item.Value().([]stackitem.Item)
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if !ok {
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return errors.New("not an array")
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}
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if len(arr) != 5 {
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return errors.New("wrong number of structure elements")
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}
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var (
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index = -1
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err error
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)
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index++
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res.Account, err = func (item stackitem.Item) (util.Uint160, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint160{}, err
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}
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u, err := util.Uint160DecodeBytesBE(b)
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if err != nil {
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return util.Uint160{}, err
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}
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return u, nil
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} (arr[index])
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if err != nil {
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return fmt.Errorf("field Account: %w", err)
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}
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index++
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res.Scopes, err = arr[index].TryInteger()
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if err != nil {
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return fmt.Errorf("field Scopes: %w", err)
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}
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index++
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res.AllowedContracts, err = func (item stackitem.Item) ([]util.Uint160, error) {
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arr, ok := item.Value().([]stackitem.Item)
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if !ok {
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return nil, errors.New("not an array")
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}
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res := make([]util.Uint160, len(arr))
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for i := range res {
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res[i], err = func (item stackitem.Item) (util.Uint160, error) {
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b, err := item.TryBytes()
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if err != nil {
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return util.Uint160{}, err
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|
}
|
|
u, err := util.Uint160DecodeBytesBE(b)
|
|
if err != nil {
|
|
return util.Uint160{}, err
|
|
}
|
|
return u, nil
|
|
} (arr[i])
|
|
if err != nil {
|
|
return nil, fmt.Errorf("item %d: %w", i, err)
|
|
}
|
|
}
|
|
return res, nil
|
|
} (arr[index])
|
|
if err != nil {
|
|
return fmt.Errorf("field AllowedContracts: %w", err)
|
|
}
|
|
|
|
index++
|
|
res.AllowedGroups, err = func (item stackitem.Item) (keys.PublicKeys, error) {
|
|
arr, ok := item.Value().([]stackitem.Item)
|
|
if !ok {
|
|
return nil, errors.New("not an array")
|
|
}
|
|
res := make(keys.PublicKeys, len(arr))
|
|
for i := range res {
|
|
res[i], err = func (item stackitem.Item) (*keys.PublicKey, error) {
|
|
b, err := item.TryBytes()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
k, err := keys.NewPublicKeyFromBytes(b, elliptic.P256())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return k, nil
|
|
} (arr[i])
|
|
if err != nil {
|
|
return nil, fmt.Errorf("item %d: %w", i, err)
|
|
}
|
|
}
|
|
return res, nil
|
|
} (arr[index])
|
|
if err != nil {
|
|
return fmt.Errorf("field AllowedGroups: %w", err)
|
|
}
|
|
|
|
index++
|
|
res.Rules, err = func (item stackitem.Item) ([]*LedgerWitnessRule, error) {
|
|
arr, ok := item.Value().([]stackitem.Item)
|
|
if !ok {
|
|
return nil, errors.New("not an array")
|
|
}
|
|
res := make([]*LedgerWitnessRule, len(arr))
|
|
for i := range res {
|
|
res[i], err = itemToLedgerWitnessRule(arr[i], nil)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("item %d: %w", i, err)
|
|
}
|
|
}
|
|
return res, nil
|
|
} (arr[index])
|
|
if err != nil {
|
|
return fmt.Errorf("field Rules: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// itemToLedgerWitnessCondition converts stack item into *LedgerWitnessCondition.
|
|
func itemToLedgerWitnessCondition(item stackitem.Item, err error) (*LedgerWitnessCondition, error) {
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var res = new(LedgerWitnessCondition)
|
|
err = res.FromStackItem(item)
|
|
return res, err
|
|
}
|
|
|
|
// FromStackItem retrieves fields of LedgerWitnessCondition from the given stack item
|
|
// and returns an error if so.
|
|
func (res *LedgerWitnessCondition) FromStackItem(item stackitem.Item) error {
|
|
arr, ok := item.Value().([]stackitem.Item)
|
|
if !ok {
|
|
return errors.New("not an array")
|
|
}
|
|
if len(arr) != 2 {
|
|
return errors.New("wrong number of structure elements")
|
|
}
|
|
|
|
var (
|
|
index = -1
|
|
err error
|
|
)
|
|
index++
|
|
res.Type, err = arr[index].TryInteger()
|
|
if err != nil {
|
|
return fmt.Errorf("field Type: %w", err)
|
|
}
|
|
|
|
index++
|
|
res.Value, err = arr[index].Value(), error(nil)
|
|
if err != nil {
|
|
return fmt.Errorf("field Value: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// itemToLedgerWitnessRule converts stack item into *LedgerWitnessRule.
|
|
func itemToLedgerWitnessRule(item stackitem.Item, err error) (*LedgerWitnessRule, error) {
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var res = new(LedgerWitnessRule)
|
|
err = res.FromStackItem(item)
|
|
return res, err
|
|
}
|
|
|
|
// FromStackItem retrieves fields of LedgerWitnessRule from the given stack item
|
|
// and returns an error if so.
|
|
func (res *LedgerWitnessRule) FromStackItem(item stackitem.Item) error {
|
|
arr, ok := item.Value().([]stackitem.Item)
|
|
if !ok {
|
|
return errors.New("not an array")
|
|
}
|
|
if len(arr) != 2 {
|
|
return errors.New("wrong number of structure elements")
|
|
}
|
|
|
|
var (
|
|
index = -1
|
|
err error
|
|
)
|
|
index++
|
|
res.Action, err = arr[index].TryInteger()
|
|
if err != nil {
|
|
return fmt.Errorf("field Action: %w", err)
|
|
}
|
|
|
|
index++
|
|
res.Condition, err = itemToLedgerWitnessCondition(arr[index], nil)
|
|
if err != nil {
|
|
return fmt.Errorf("field Condition: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// ComplicatedNameEventsFromApplicationLog retrieves a set of all emitted events
|
|
// with "! complicated name %$#" name from the provided ApplicationLog.
|
|
func ComplicatedNameEventsFromApplicationLog(log *result.ApplicationLog) ([]*ComplicatedNameEvent, error) {
|
|
if log == nil {
|
|
return nil, errors.New("nil application log")
|
|
}
|
|
|
|
var res []*ComplicatedNameEvent
|
|
for i, ex := range log.Executions {
|
|
for j, e := range ex.Events {
|
|
if e.Name != "! complicated name %$#" {
|
|
continue
|
|
}
|
|
event := new(ComplicatedNameEvent)
|
|
err := event.FromStackItem(e.Item)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to deserialize ComplicatedNameEvent from stackitem (execution %d, event %d): %w", i, j, err)
|
|
}
|
|
res = append(res, event)
|
|
}
|
|
}
|
|
|
|
return res, nil
|
|
}
|
|
|
|
// FromStackItem converts provided stackitem.Array to ComplicatedNameEvent and
|
|
// returns an error if so.
|
|
func (e *ComplicatedNameEvent) FromStackItem(item *stackitem.Array) error {
|
|
if item == nil {
|
|
return errors.New("nil item")
|
|
}
|
|
arr, ok := item.Value().([]stackitem.Item)
|
|
if !ok {
|
|
return errors.New("not an array")
|
|
}
|
|
if len(arr) != 1 {
|
|
return errors.New("wrong number of structure elements")
|
|
}
|
|
|
|
var (
|
|
index = -1
|
|
err error
|
|
)
|
|
index++
|
|
e.ComplicatedParam, err = func (item stackitem.Item) (string, error) {
|
|
b, err := item.TryBytes()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
if !utf8.Valid(b) {
|
|
return "", errors.New("not a UTF-8 string")
|
|
}
|
|
return string(b), nil
|
|
} (arr[index])
|
|
if err != nil {
|
|
return fmt.Errorf("field ComplicatedParam: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|