core: remove Neo.Header/Witness/Account.* interops
They are not present in NEO3.
This commit is contained in:
Evgenii Stratonikov
parent
4264a758ac
commit
3d3fe9398e
10 changed files with 2 additions and 385 deletions
|
|
@ -1,12 +1,6 @@
|
|||
package compiler
|
||||
|
||||
var syscalls = map[string]map[string]string{
|
||||
"account": {
|
||||
"GetBalance": "Neo.Account.GetBalance",
|
||||
"GetScriptHash": "Neo.Account.GetScriptHash",
|
||||
"GetVotes": "Neo.Account.GetVotes",
|
||||
"IsStandard": "Neo.Account.IsStandard",
|
||||
},
|
||||
"crypto": {
|
||||
"ECDsaVerify": "Neo.Crypto.ECDsaVerify",
|
||||
},
|
||||
|
|
@ -35,25 +29,12 @@ var syscalls = map[string]map[string]string{
|
|||
"Deserialize": "Neo.Runtime.Deserialize",
|
||||
},
|
||||
"blockchain": {
|
||||
"GetAccount": "Neo.Blockchain.GetAccount",
|
||||
"GetBlock": "System.Blockchain.GetBlock",
|
||||
"GetContract": "Neo.Blockchain.GetContract",
|
||||
"GetHeader": "Neo.Blockchain.GetHeader",
|
||||
"GetHeight": "Neo.Blockchain.GetHeight",
|
||||
"GetTransaction": "System.Blockchain.GetTransaction",
|
||||
"GetTransactionFromBlock": "System.Blockchain.GetTransactionFromBlock",
|
||||
"GetTransactionHeight": "System.Blockchain.GetTransactionHeight",
|
||||
"GetValidators": "Neo.Blockchain.GetValidators",
|
||||
},
|
||||
"header": {
|
||||
"GetIndex": "Neo.Header.GetIndex",
|
||||
"GetHash": "Neo.Header.GetHash",
|
||||
"GetPrevHash": "Neo.Header.GetPrevHash",
|
||||
"GetTimestamp": "Neo.Header.GetTimestamp",
|
||||
"GetVersion": "Neo.Header.GetVersion",
|
||||
"GetMerkleRoot": "Neo.Header.GetMerkleRoot",
|
||||
"GetConsensusData": "Neo.Header.GetConsensusData",
|
||||
"GetNextConsensus": "Neo.Header.GetNextConsensus",
|
||||
},
|
||||
"contract": {
|
||||
"GetScript": "Neo.Contract.GetScript",
|
||||
|
|
@ -78,7 +59,4 @@ var syscalls = map[string]map[string]string{
|
|||
"Value": "Neo.Iterator.Value",
|
||||
"Values": "Neo.Iterator.Values",
|
||||
},
|
||||
"witness": {
|
||||
"GetVerificationScript": "Neo.Witness.GetVerificationScript",
|
||||
},
|
||||
}
|
||||
|
|
|
|||
|
|
@ -8,10 +8,8 @@ import (
|
|||
|
||||
"github.com/nspcc-dev/neo-go/pkg/core/interop"
|
||||
"github.com/nspcc-dev/neo-go/pkg/core/state"
|
||||
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
|
||||
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
|
||||
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
|
||||
"github.com/nspcc-dev/neo-go/pkg/util"
|
||||
"github.com/nspcc-dev/neo-go/pkg/vm"
|
||||
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
|
||||
)
|
||||
|
|
@ -27,109 +25,6 @@ const (
|
|||
MaxContractStringLen = 252
|
||||
)
|
||||
|
||||
// headerGetVersion returns version from the header.
|
||||
func headerGetVersion(ic *interop.Context, v *vm.VM) error {
|
||||
header, err := popHeaderFromVM(v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
v.Estack().PushVal(header.Version)
|
||||
return nil
|
||||
}
|
||||
|
||||
// headerGetMerkleRoot returns version from the header.
|
||||
func headerGetMerkleRoot(ic *interop.Context, v *vm.VM) error {
|
||||
header, err := popHeaderFromVM(v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
v.Estack().PushVal(header.MerkleRoot.BytesBE())
|
||||
return nil
|
||||
}
|
||||
|
||||
// headerGetNextConsensus returns version from the header.
|
||||
func headerGetNextConsensus(ic *interop.Context, v *vm.VM) error {
|
||||
header, err := popHeaderFromVM(v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
v.Estack().PushVal(header.NextConsensus.BytesBE())
|
||||
return nil
|
||||
}
|
||||
|
||||
// witnessGetVerificationScript returns current witness' script.
|
||||
func witnessGetVerificationScript(ic *interop.Context, v *vm.VM) error {
|
||||
witInterface := v.Estack().Pop().Value()
|
||||
wit, ok := witInterface.(*transaction.Witness)
|
||||
if !ok {
|
||||
return errors.New("value is not a witness")
|
||||
}
|
||||
// It's important not to share wit.VerificationScript slice with the code running in VM.
|
||||
script := make([]byte, len(wit.VerificationScript))
|
||||
copy(script, wit.VerificationScript)
|
||||
v.Estack().PushVal(script)
|
||||
return nil
|
||||
}
|
||||
|
||||
// bcGetAccount returns or creates an account.
|
||||
func bcGetAccount(ic *interop.Context, v *vm.VM) error {
|
||||
accbytes := v.Estack().Pop().Bytes()
|
||||
acchash, err := util.Uint160DecodeBytesBE(accbytes)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
acc, err := ic.DAO.GetAccountStateOrNew(acchash)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
v.Estack().PushVal(stackitem.NewInterop(acc))
|
||||
return nil
|
||||
}
|
||||
|
||||
// accountGetBalance returns balance for a given account.
|
||||
func accountGetBalance(ic *interop.Context, v *vm.VM) error {
|
||||
accInterface := v.Estack().Pop().Value()
|
||||
acc, ok := accInterface.(*state.Account)
|
||||
if !ok {
|
||||
return fmt.Errorf("%T is not an account state", acc)
|
||||
}
|
||||
asbytes := v.Estack().Pop().Bytes()
|
||||
ashash, err := util.Uint256DecodeBytesBE(asbytes)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
balance, ok := acc.GetBalanceValues()[ashash]
|
||||
if !ok {
|
||||
balance = util.Fixed8(0)
|
||||
}
|
||||
v.Estack().PushVal(int64(balance))
|
||||
return nil
|
||||
}
|
||||
|
||||
// accountGetScriptHash returns script hash of a given account.
|
||||
func accountGetScriptHash(ic *interop.Context, v *vm.VM) error {
|
||||
accInterface := v.Estack().Pop().Value()
|
||||
acc, ok := accInterface.(*state.Account)
|
||||
if !ok {
|
||||
return fmt.Errorf("%T is not an account state", acc)
|
||||
}
|
||||
v.Estack().PushVal(acc.ScriptHash.BytesBE())
|
||||
return nil
|
||||
}
|
||||
|
||||
// accountIsStandard checks whether given account is standard.
|
||||
func accountIsStandard(ic *interop.Context, v *vm.VM) error {
|
||||
accbytes := v.Estack().Pop().Bytes()
|
||||
acchash, err := util.Uint160DecodeBytesBE(accbytes)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
contract, err := ic.DAO.GetContractState(acchash)
|
||||
res := err != nil || vm.IsStandardContract(contract.Script)
|
||||
v.Estack().PushVal(res)
|
||||
return nil
|
||||
}
|
||||
|
||||
// storageFind finds stored key-value pair.
|
||||
func storageFind(ic *interop.Context, v *vm.VM) error {
|
||||
stcInterface := v.Estack().Pop().Value()
|
||||
|
|
|
|||
|
|
@ -2,7 +2,6 @@ package core
|
|||
|
||||
import (
|
||||
"fmt"
|
||||
"math/big"
|
||||
"testing"
|
||||
|
||||
"github.com/nspcc-dev/neo-go/pkg/core/block"
|
||||
|
|
@ -136,64 +135,6 @@ func TestStorageFind(t *testing.T) {
|
|||
})
|
||||
}
|
||||
|
||||
func TestHeaderGetVersion(t *testing.T) {
|
||||
v, block, context, chain := createVMAndPushBlock(t)
|
||||
defer chain.Close()
|
||||
|
||||
err := headerGetVersion(context, v)
|
||||
require.NoError(t, err)
|
||||
value := v.Estack().Pop().Value().(*big.Int)
|
||||
require.Equal(t, uint64(block.Version), value.Uint64())
|
||||
}
|
||||
|
||||
func TestHeaderGetVersion_Negative(t *testing.T) {
|
||||
v := vm.New()
|
||||
block := newDumbBlock()
|
||||
chain := newTestChain(t)
|
||||
defer chain.Close()
|
||||
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), block, nil)
|
||||
v.Estack().PushVal(stackitem.NewBool(false))
|
||||
|
||||
err := headerGetVersion(context, v)
|
||||
require.Errorf(t, err, "value is not a header or block")
|
||||
}
|
||||
|
||||
func TestHeaderGetMerkleRoot(t *testing.T) {
|
||||
v, block, context, chain := createVMAndPushBlock(t)
|
||||
defer chain.Close()
|
||||
|
||||
err := headerGetMerkleRoot(context, v)
|
||||
require.NoError(t, err)
|
||||
value := v.Estack().Pop().Value()
|
||||
require.Equal(t, block.MerkleRoot.BytesBE(), value)
|
||||
}
|
||||
|
||||
func TestHeaderGetNextConsensus(t *testing.T) {
|
||||
v, block, context, chain := createVMAndPushBlock(t)
|
||||
defer chain.Close()
|
||||
|
||||
err := headerGetNextConsensus(context, v)
|
||||
require.NoError(t, err)
|
||||
value := v.Estack().Pop().Value()
|
||||
require.Equal(t, block.NextConsensus.BytesBE(), value)
|
||||
}
|
||||
|
||||
func TestWitnessGetVerificationScript(t *testing.T) {
|
||||
v := vm.New()
|
||||
script := []byte{byte(opcode.PUSHM1), byte(opcode.RET)}
|
||||
witness := transaction.Witness{InvocationScript: nil, VerificationScript: script}
|
||||
|
||||
chain := newTestChain(t)
|
||||
defer chain.Close()
|
||||
|
||||
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, nil)
|
||||
v.Estack().PushVal(stackitem.NewInterop(&witness))
|
||||
err := witnessGetVerificationScript(context, v)
|
||||
require.NoError(t, err)
|
||||
value := v.Estack().Pop().Value().([]byte)
|
||||
require.Equal(t, witness.VerificationScript, value)
|
||||
}
|
||||
|
||||
func TestECDSAVerify(t *testing.T) {
|
||||
priv, err := keys.NewPrivateKey()
|
||||
require.NoError(t, err)
|
||||
|
|
@ -270,17 +211,6 @@ func TestECDSAVerify(t *testing.T) {
|
|||
})
|
||||
}
|
||||
|
||||
func TestAccountGetScriptHash(t *testing.T) {
|
||||
v, accState, context, chain := createVMAndAccState(t)
|
||||
defer chain.Close()
|
||||
v.Estack().PushVal(stackitem.NewInterop(accState))
|
||||
|
||||
err := accountGetScriptHash(context, v)
|
||||
require.NoError(t, err)
|
||||
hash := v.Estack().Pop().Value()
|
||||
require.Equal(t, accState.ScriptHash.BytesBE(), hash)
|
||||
}
|
||||
|
||||
func TestContractGetScript(t *testing.T) {
|
||||
v, contractState, context, chain := createVMAndContractState(t)
|
||||
defer chain.Close()
|
||||
|
|
|
|||
|
|
@ -98,21 +98,6 @@ func bcGetContract(ic *interop.Context, v *vm.VM) error {
|
|||
return nil
|
||||
}
|
||||
|
||||
// bcGetHeader returns block header.
|
||||
func bcGetHeader(ic *interop.Context, v *vm.VM) error {
|
||||
hash, err := getBlockHashFromElement(ic.Chain, v.Estack().Pop())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
header, err := ic.Chain.GetHeader(hash)
|
||||
if err != nil {
|
||||
v.Estack().PushVal([]byte{})
|
||||
} else {
|
||||
v.Estack().PushVal(stackitem.NewInterop(header))
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// bcGetHeight returns blockchain height.
|
||||
func bcGetHeight(ic *interop.Context, v *vm.VM) error {
|
||||
v.Estack().PushVal(ic.Chain.BlockHeight())
|
||||
|
|
|
|||
|
|
@ -64,7 +64,6 @@ func getInteropFromSlice(ic *interop.Context, slice []interop.Function) func(uin
|
|||
var systemInterops = []interop.Function{
|
||||
{Name: "System.Blockchain.GetBlock", Func: bcGetBlock, Price: 250},
|
||||
{Name: "System.Blockchain.GetContract", Func: bcGetContract, Price: 100},
|
||||
{Name: "System.Blockchain.GetHeader", Func: bcGetHeader, Price: 100},
|
||||
{Name: "System.Blockchain.GetHeight", Func: bcGetHeight, Price: 1},
|
||||
{Name: "System.Blockchain.GetTransaction", Func: bcGetTransaction, Price: 100},
|
||||
{Name: "System.Blockchain.GetTransactionFromBlock", Func: bcGetTransactionFromBlock, Price: 100},
|
||||
|
|
@ -77,10 +76,6 @@ var systemInterops = []interop.Function{
|
|||
{Name: "System.ExecutionEngine.GetEntryScriptHash", Func: engineGetEntryScriptHash, Price: 1},
|
||||
{Name: "System.ExecutionEngine.GetExecutingScriptHash", Func: engineGetExecutingScriptHash, Price: 1},
|
||||
{Name: "System.ExecutionEngine.GetScriptContainer", Func: engineGetScriptContainer, Price: 1},
|
||||
{Name: "System.Header.GetHash", Func: headerGetHash, Price: 1},
|
||||
{Name: "System.Header.GetIndex", Func: headerGetIndex, Price: 1},
|
||||
{Name: "System.Header.GetPrevHash", Func: headerGetPrevHash, Price: 1},
|
||||
{Name: "System.Header.GetTimestamp", Func: headerGetTimestamp, Price: 1},
|
||||
{Name: "System.Runtime.CheckWitness", Func: runtime.CheckWitness, Price: 200},
|
||||
{Name: "System.Runtime.Deserialize", Func: runtimeDeserialize, Price: 1},
|
||||
{Name: "System.Runtime.GetTime", Func: runtimeGetTime, Price: 1},
|
||||
|
|
@ -99,12 +94,7 @@ var systemInterops = []interop.Function{
|
|||
}
|
||||
|
||||
var neoInterops = []interop.Function{
|
||||
{Name: "Neo.Account.GetBalance", Func: accountGetBalance, Price: 1},
|
||||
{Name: "Neo.Account.GetScriptHash", Func: accountGetScriptHash, Price: 1},
|
||||
{Name: "Neo.Account.IsStandard", Func: accountIsStandard, Price: 100},
|
||||
{Name: "Neo.Blockchain.GetAccount", Func: bcGetAccount, Price: 100},
|
||||
{Name: "Neo.Blockchain.GetContract", Func: bcGetContract, Price: 100},
|
||||
{Name: "Neo.Blockchain.GetHeader", Func: bcGetHeader, Price: 100},
|
||||
{Name: "Neo.Blockchain.GetHeight", Func: bcGetHeight, Price: 1},
|
||||
{Name: "Neo.Contract.Create", Func: contractCreate, Price: 0},
|
||||
{Name: "Neo.Contract.Destroy", Func: contractDestroy, Price: 1},
|
||||
|
|
@ -119,13 +109,6 @@ var neoInterops = []interop.Function{
|
|||
{Name: "Neo.Enumerator.Create", Func: enumerator.Create, Price: 1},
|
||||
{Name: "Neo.Enumerator.Next", Func: enumerator.Next, Price: 1},
|
||||
{Name: "Neo.Enumerator.Value", Func: enumerator.Value, Price: 1},
|
||||
{Name: "Neo.Header.GetHash", Func: headerGetHash, Price: 1},
|
||||
{Name: "Neo.Header.GetIndex", Func: headerGetIndex, Price: 1},
|
||||
{Name: "Neo.Header.GetMerkleRoot", Func: headerGetMerkleRoot, Price: 1},
|
||||
{Name: "Neo.Header.GetNextConsensus", Func: headerGetNextConsensus, Price: 1},
|
||||
{Name: "Neo.Header.GetPrevHash", Func: headerGetPrevHash, Price: 1},
|
||||
{Name: "Neo.Header.GetTimestamp", Func: headerGetTimestamp, Price: 1},
|
||||
{Name: "Neo.Header.GetVersion", Func: headerGetVersion, Price: 1},
|
||||
{Name: "Neo.Iterator.Concat", Func: iterator.Concat, Price: 1},
|
||||
{Name: "Neo.Iterator.Create", Func: iterator.Create, Price: 1},
|
||||
{Name: "Neo.Iterator.Key", Func: iterator.Key, Price: 1},
|
||||
|
|
@ -146,7 +129,6 @@ var neoInterops = []interop.Function{
|
|||
{Name: "Neo.Storage.GetReadOnlyContext", Func: storageGetReadOnlyContext, Price: 1},
|
||||
{Name: "Neo.Storage.Put", Func: storagePut, Price: 0},
|
||||
{Name: "Neo.StorageContext.AsReadOnly", Func: storageContextAsReadOnly, Price: 1},
|
||||
{Name: "Neo.Witness.GetVerificationScript", Func: witnessGetVerificationScript, Price: 100},
|
||||
|
||||
// Aliases.
|
||||
{Name: "Neo.Iterator.Next", Func: enumerator.Next, Price: 1},
|
||||
|
|
|
|||
|
|
@ -32,25 +32,15 @@ func TestUnexpectedNonInterops(t *testing.T) {
|
|||
|
||||
// All of these functions expect an interop item on the stack.
|
||||
funcs := []func(*interop.Context, *vm.VM) error{
|
||||
accountGetBalance,
|
||||
accountGetScriptHash,
|
||||
contractGetScript,
|
||||
contractGetStorageContext,
|
||||
contractIsPayable,
|
||||
headerGetHash,
|
||||
headerGetIndex,
|
||||
headerGetMerkleRoot,
|
||||
headerGetNextConsensus,
|
||||
headerGetPrevHash,
|
||||
headerGetTimestamp,
|
||||
headerGetVersion,
|
||||
storageContextAsReadOnly,
|
||||
storageDelete,
|
||||
storageFind,
|
||||
storageGet,
|
||||
storagePut,
|
||||
storagePutEx,
|
||||
witnessGetVerificationScript,
|
||||
}
|
||||
for _, f := range funcs {
|
||||
for k, v := range vals {
|
||||
|
|
|
|||
|
|
@ -1,43 +0,0 @@
|
|||
/*
|
||||
Package account provides getter functions for Account interop structure.
|
||||
To use these functions you need to get an Account first via blockchain.GetAccount
|
||||
call.
|
||||
*/
|
||||
package account
|
||||
|
||||
// Account represents NEO account type that is used in interop functions, it's
|
||||
// an opaque data structure that you can get data from only using functions from
|
||||
// this package. It's similar in function to the Account class in the Neo .net
|
||||
// framework.
|
||||
type Account struct{}
|
||||
|
||||
// GetScriptHash returns the script hash of the given Account (20 bytes in BE
|
||||
// representation). It uses `Neo.Account.GetBalance` syscall internally.
|
||||
func GetScriptHash(a Account) []byte {
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetVotes returns current votes of the given account represented as a slice of
|
||||
// public keys. Keys are serialized into byte slices in their compressed form (33
|
||||
// bytes long each). This function uses `Neo.Account.GetVotes` syscall
|
||||
// internally.
|
||||
func GetVotes(a Account) [][]byte {
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetBalance returns current balance of the given asset (by its ID, 256 bit
|
||||
// hash in BE form) for the given account. Only native UTXO assets can be
|
||||
// queiried via this function, for NEP-5 ones use respective contract calls.
|
||||
// The value returned is represented as an integer with original value multiplied
|
||||
// by 10⁸ so you can work with fractional parts of the balance too. This function
|
||||
// uses `Neo.Account.GetBalance` syscall internally.
|
||||
func GetBalance(a Account, assetID []byte) int {
|
||||
return 0
|
||||
}
|
||||
|
||||
// IsStandard checks whether given account uses standard (CHECKSIG or
|
||||
// CHECKMULTISIG) contract. It only works for deployed contracts and uses
|
||||
// `Neo.Account.IsStandard` syscall internally.
|
||||
func IsStandard(a Account) bool {
|
||||
return false
|
||||
}
|
||||
|
|
@ -4,9 +4,7 @@ Package blockchain provides functions to access various blockchain data.
|
|||
package blockchain
|
||||
|
||||
import (
|
||||
"github.com/nspcc-dev/neo-go/pkg/interop/account"
|
||||
"github.com/nspcc-dev/neo-go/pkg/interop/contract"
|
||||
"github.com/nspcc-dev/neo-go/pkg/interop/header"
|
||||
)
|
||||
|
||||
// Transaction represents a NEO transaction. It's similar to Transaction class
|
||||
|
|
@ -63,19 +61,11 @@ type Block struct {
|
|||
// Note that when transaction is being run as a part of new block this block is
|
||||
// considered as not yet accepted (persisted) and thus you'll get an index of
|
||||
// the previous (already accepted) block. This function uses
|
||||
// `Neo.Blockchain.GetHeight` syscall.
|
||||
// `System.Blockchain.GetHeight` syscall.
|
||||
func GetHeight() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
// GetHeader returns header found by the given hash (256 bit hash in BE format
|
||||
// represented as a slice of 32 bytes) or index (integer). Refer to the `header`
|
||||
// package for possible uses of returned structure. This function uses
|
||||
// `Neo.Blockchain.GetHeader` syscall.
|
||||
func GetHeader(heightOrHash interface{}) header.Header {
|
||||
return header.Header{}
|
||||
}
|
||||
|
||||
// GetBlock returns block found by the given hash or index (with the same
|
||||
// encoding as for GetHeader). This function uses `System.Blockchain.GetBlock`
|
||||
// syscall.
|
||||
|
|
@ -108,22 +98,7 @@ func GetTransactionHeight(hash []byte) int {
|
|||
// GetContract returns contract found by the given script hash (160 bit in BE
|
||||
// format represented as a slice of 20 bytes). Refer to the `contract` package
|
||||
// for details on how to use the returned structure. This function uses
|
||||
// `Neo.Blockchain.GetContract` syscall.
|
||||
// `System.Blockchain.GetContract` syscall.
|
||||
func GetContract(scriptHash []byte) contract.Contract {
|
||||
return contract.Contract{}
|
||||
}
|
||||
|
||||
// GetAccount returns account found by the given script hash (160 bit in BE
|
||||
// format represented as a slice of 20 bytes). Refer to the `account` package
|
||||
// for details on how to use the returned structure. This function uses
|
||||
// `Neo.Blockchain.GetAccount` syscall.
|
||||
func GetAccount(scriptHash []byte) account.Account {
|
||||
return account.Account{}
|
||||
}
|
||||
|
||||
// GetValidators returns a slice of current validators public keys represented
|
||||
// as a compressed serialized byte slice (33 bytes long). This function uses
|
||||
// `Neo.Blockchain.GetValidators` syscall.
|
||||
func GetValidators() [][]byte {
|
||||
return nil
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,61 +0,0 @@
|
|||
/*
|
||||
Package header contains functions working with block headers.
|
||||
*/
|
||||
package header
|
||||
|
||||
// Header represents Neo block header type, it's an opaque data structure that
|
||||
// can be used by functions from this package. You can create it with
|
||||
// blockchain.GetHeader. In its function it's similar to the Header class
|
||||
// of the Neo .net framework.
|
||||
type Header struct{}
|
||||
|
||||
// GetIndex returns the index (height) of the given header. It uses
|
||||
// `Neo.Header.GetIndex` syscall.
|
||||
func GetIndex(h Header) int {
|
||||
return 0
|
||||
}
|
||||
|
||||
// GetHash returns the hash (256-bit BE value packed into 32 byte slice) of the
|
||||
// given header (which also is a hash of the block). It uses `Neo.Header.GetHash`
|
||||
// syscall.
|
||||
func GetHash(h Header) []byte {
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetPrevHash returns the hash (256-bit BE value packed into 32 byte slice) of
|
||||
// the previous block stored in the given header. It uses `Neo.Header.GetPrevHash`
|
||||
// syscall.
|
||||
func GetPrevHash(h Header) []byte {
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetTimestamp returns the timestamp of the given header. It uses
|
||||
// `Neo.Header.GetTimestamp` syscall.
|
||||
func GetTimestamp(h Header) int {
|
||||
return 0
|
||||
}
|
||||
|
||||
// GetVersion returns the version of the given header. It uses
|
||||
// `Neo.Header.GetVersion` syscall.
|
||||
func GetVersion(h Header) int {
|
||||
return 0
|
||||
}
|
||||
|
||||
// GetMerkleRoot returns the Merkle root (256-bit BE value packed into 32 byte
|
||||
// slice) of the given header. It uses `Neo.Header.GetMerkleRoot` syscall.
|
||||
func GetMerkleRoot(h Header) []byte {
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetConsensusData returns the consensus data (nonce) of the given header.
|
||||
// It uses `Neo.Header.GetConsensusData` syscall.
|
||||
func GetConsensusData(h Header) int {
|
||||
return 0
|
||||
}
|
||||
|
||||
// GetNextConsensus returns the next consensus field (verification script hash,
|
||||
// 160-bit BE value packed into 20 byte slice) of the given header. It uses
|
||||
// `Neo.Header.GetNextConsensus` syscall.
|
||||
func GetNextConsensus(h Header) []byte {
|
||||
return nil
|
||||
}
|
||||
|
|
@ -1,14 +0,0 @@
|
|||
/*
|
||||
Package witness provides functions dealing with transaction's witnesses.
|
||||
*/
|
||||
package witness
|
||||
|
||||
// Witness is an opaque data structure that can only be created by
|
||||
// transaction.GetWitnesses and representing transaction's witness.
|
||||
type Witness struct{}
|
||||
|
||||
// GetVerificationScript returns verification script stored in the given
|
||||
// witness. It uses `Neo.Witness.GetVerificationScript` syscall.
|
||||
func GetVerificationScript(w Witness) []byte {
|
||||
return nil
|
||||
}
|
||||
Loading…
Reference in a new issue