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Merge pull request #565 from nspcc-dev/hashed-interop-callback

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vm/core: add ID support for SYSCALL, redo interop registration
This commit is contained in:
Roman Khimov 2019-12-19 15:02:53 +03:00 committed by GitHub
commit 26ea4799c3
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7 changed files with 384 additions and 247 deletions
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4
pkg/core/blockchain.go
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@ -1342,8 +1342,8 @@ func (bc *Blockchain) spawnVMWithInterops(interopCtx *interopContext) *vm.VM {
}
return cs.Script
})
vm.RegisterInteropFuncs(interopCtx.getSystemInteropMap())
vm.RegisterInteropFuncs(interopCtx.getNeoInteropMap())
vm.RegisterInteropGetter(interopCtx.getSystemInterop)
vm.RegisterInteropGetter(interopCtx.getNeoInterop)
return vm
}

417
pkg/core/interops.go
View file

@ -8,6 +8,8 @@ package core
*/
import (
"sort"
"github.com/CityOfZion/neo-go/pkg/core/state"
"github.com/CityOfZion/neo-go/pkg/core/storage"
"github.com/CityOfZion/neo-go/pkg/core/transaction"
@ -29,193 +31,240 @@ func newInteropContext(trigger byte, bc Blockchainer, s storage.Store, block *Bl
return &interopContext{bc, trigger, block, tx, dao, nes}
}
// interopedFunction binds function name, id with the function itself and price,
// it's supposed to be inited once for all interopContexts, so it doesn't use
// vm.InteropFuncPrice directly.
type interopedFunction struct {
ID uint32
Name string
Func func(*interopContext, *vm.VM) error
Price int
}
// getSystemInterop returns matching interop function from the System namespace
// for a given id in the current context.
func (ic *interopContext) getSystemInterop(id uint32) *vm.InteropFuncPrice {
return ic.getInteropFromSlice(id, systemInterops)
}
// getNeoInterop returns matching interop function from the Neo and AntShares
// namespaces for a given id in the current context.
func (ic *interopContext) getNeoInterop(id uint32) *vm.InteropFuncPrice {
return ic.getInteropFromSlice(id, neoInterops)
}
// getInteropFromSlice returns matching interop function from the given slice of
// interop functions in the current context.
func (ic *interopContext) getInteropFromSlice(id uint32, slice []interopedFunction) *vm.InteropFuncPrice {
n := sort.Search(len(slice), func(i int) bool {
return slice[i].ID >= id
})
if n < len(slice) && slice[n].ID == id {
// Currying, yay!
return &vm.InteropFuncPrice{Func: func(v *vm.VM) error {
return slice[n].Func(ic, v)
}, Price: slice[n].Price}
}
return nil
}
// All lists are sorted, keep 'em this way, please.
// getSystemInteropMap returns interop mappings for System namespace.
func (ic *interopContext) getSystemInteropMap() map[string]vm.InteropFuncPrice {
return map[string]vm.InteropFuncPrice{
"System.Block.GetTransaction": {Func: ic.blockGetTransaction, Price: 1},
"System.Block.GetTransactionCount": {Func: ic.blockGetTransactionCount, Price: 1},
"System.Block.GetTransactions": {Func: ic.blockGetTransactions, Price: 1},
"System.Blockchain.GetBlock": {Func: ic.bcGetBlock, Price: 200},
"System.Blockchain.GetContract": {Func: ic.bcGetContract, Price: 100},
"System.Blockchain.GetHeader": {Func: ic.bcGetHeader, Price: 100},
"System.Blockchain.GetHeight": {Func: ic.bcGetHeight, Price: 1},
"System.Blockchain.GetTransaction": {Func: ic.bcGetTransaction, Price: 200},
"System.Blockchain.GetTransactionHeight": {Func: ic.bcGetTransactionHeight, Price: 100},
"System.Contract.Destroy": {Func: ic.contractDestroy, Price: 1},
"System.Contract.GetStorageContext": {Func: ic.contractGetStorageContext, Price: 1},
"System.ExecutionEngine.GetCallingScriptHash": {Func: ic.engineGetCallingScriptHash, Price: 1},
"System.ExecutionEngine.GetEntryScriptHash": {Func: ic.engineGetEntryScriptHash, Price: 1},
"System.ExecutionEngine.GetExecutingScriptHash": {Func: ic.engineGetExecutingScriptHash, Price: 1},
"System.ExecutionEngine.GetScriptContainer": {Func: ic.engineGetScriptContainer, Price: 1},
"System.Header.GetHash": {Func: ic.headerGetHash, Price: 1},
"System.Header.GetIndex": {Func: ic.headerGetIndex, Price: 1},
"System.Header.GetPrevHash": {Func: ic.headerGetPrevHash, Price: 1},
"System.Header.GetTimestamp": {Func: ic.headerGetTimestamp, Price: 1},
"System.Runtime.CheckWitness": {Func: ic.runtimeCheckWitness, Price: 200},
"System.Runtime.GetTime": {Func: ic.runtimeGetTime, Price: 1},
"System.Runtime.GetTrigger": {Func: ic.runtimeGetTrigger, Price: 1},
"System.Runtime.Log": {Func: ic.runtimeLog, Price: 1},
"System.Runtime.Notify": {Func: ic.runtimeNotify, Price: 1},
"System.Runtime.Platform": {Func: ic.runtimePlatform, Price: 1},
"System.Storage.Delete": {Func: ic.storageDelete, Price: 100},
"System.Storage.Get": {Func: ic.storageGet, Price: 100},
"System.Storage.GetContext": {Func: ic.storageGetContext, Price: 1},
"System.Storage.GetReadOnlyContext": {Func: ic.storageGetReadOnlyContext, Price: 1},
"System.Storage.Put": {Func: ic.storagePut, Price: 0}, // These don't have static price in C# code.
"System.Storage.PutEx": {Func: ic.storagePutEx, Price: 0},
"System.StorageContext.AsReadOnly": {Func: ic.storageContextAsReadOnly, Price: 1},
"System.Transaction.GetHash": {Func: ic.txGetHash, Price: 1},
"System.Runtime.Deserialize": {Func: ic.runtimeDeserialize, Price: 1},
"System.Runtime.Serialize": {Func: ic.runtimeSerialize, Price: 1},
}
var systemInterops = []interopedFunction{
{Name: "System.Block.GetTransaction", Func: (*interopContext).blockGetTransaction, Price: 1},
{Name: "System.Block.GetTransactionCount", Func: (*interopContext).blockGetTransactionCount, Price: 1},
{Name: "System.Block.GetTransactions", Func: (*interopContext).blockGetTransactions, Price: 1},
{Name: "System.Blockchain.GetBlock", Func: (*interopContext).bcGetBlock, Price: 200},
{Name: "System.Blockchain.GetContract", Func: (*interopContext).bcGetContract, Price: 100},
{Name: "System.Blockchain.GetHeader", Func: (*interopContext).bcGetHeader, Price: 100},
{Name: "System.Blockchain.GetHeight", Func: (*interopContext).bcGetHeight, Price: 1},
{Name: "System.Blockchain.GetTransaction", Func: (*interopContext).bcGetTransaction, Price: 200},
{Name: "System.Blockchain.GetTransactionHeight", Func: (*interopContext).bcGetTransactionHeight, Price: 100},
{Name: "System.Contract.Destroy", Func: (*interopContext).contractDestroy, Price: 1},
{Name: "System.Contract.GetStorageContext", Func: (*interopContext).contractGetStorageContext, Price: 1},
{Name: "System.ExecutionEngine.GetCallingScriptHash", Func: (*interopContext).engineGetCallingScriptHash, Price: 1},
{Name: "System.ExecutionEngine.GetEntryScriptHash", Func: (*interopContext).engineGetEntryScriptHash, Price: 1},
{Name: "System.ExecutionEngine.GetExecutingScriptHash", Func: (*interopContext).engineGetExecutingScriptHash, Price: 1},
{Name: "System.ExecutionEngine.GetScriptContainer", Func: (*interopContext).engineGetScriptContainer, Price: 1},
{Name: "System.Header.GetHash", Func: (*interopContext).headerGetHash, Price: 1},
{Name: "System.Header.GetIndex", Func: (*interopContext).headerGetIndex, Price: 1},
{Name: "System.Header.GetPrevHash", Func: (*interopContext).headerGetPrevHash, Price: 1},
{Name: "System.Header.GetTimestamp", Func: (*interopContext).headerGetTimestamp, Price: 1},
{Name: "System.Runtime.CheckWitness", Func: (*interopContext).runtimeCheckWitness, Price: 200},
{Name: "System.Runtime.Deserialize", Func: (*interopContext).runtimeDeserialize, Price: 1},
{Name: "System.Runtime.GetTime", Func: (*interopContext).runtimeGetTime, Price: 1},
{Name: "System.Runtime.GetTrigger", Func: (*interopContext).runtimeGetTrigger, Price: 1},
{Name: "System.Runtime.Log", Func: (*interopContext).runtimeLog, Price: 1},
{Name: "System.Runtime.Notify", Func: (*interopContext).runtimeNotify, Price: 1},
{Name: "System.Runtime.Platform", Func: (*interopContext).runtimePlatform, Price: 1},
{Name: "System.Runtime.Serialize", Func: (*interopContext).runtimeSerialize, Price: 1},
{Name: "System.Storage.Delete", Func: (*interopContext).storageDelete, Price: 100},
{Name: "System.Storage.Get", Func: (*interopContext).storageGet, Price: 100},
{Name: "System.Storage.GetContext", Func: (*interopContext).storageGetContext, Price: 1},
{Name: "System.Storage.GetReadOnlyContext", Func: (*interopContext).storageGetReadOnlyContext, Price: 1},
{Name: "System.Storage.Put", Func: (*interopContext).storagePut, Price: 0}, // These don't have static price in C# code.
{Name: "System.Storage.PutEx", Func: (*interopContext).storagePutEx, Price: 0},
{Name: "System.StorageContext.AsReadOnly", Func: (*interopContext).storageContextAsReadOnly, Price: 1},
{Name: "System.Transaction.GetHash", Func: (*interopContext).txGetHash, Price: 1},
}
// getSystemInteropMap returns interop mappings for Neo and (legacy) AntShares namespaces.
func (ic *interopContext) getNeoInteropMap() map[string]vm.InteropFuncPrice {
return map[string]vm.InteropFuncPrice{
"Neo.Account.GetBalance": {Func: ic.accountGetBalance, Price: 1},
"Neo.Account.GetScriptHash": {Func: ic.accountGetScriptHash, Price: 1},
"Neo.Account.GetVotes": {Func: ic.accountGetVotes, Price: 1},
"Neo.Account.IsStandard": {Func: ic.accountIsStandard, Price: 100},
"Neo.Asset.Create": {Func: ic.assetCreate, Price: 0},
"Neo.Asset.GetAdmin": {Func: ic.assetGetAdmin, Price: 1},
"Neo.Asset.GetAmount": {Func: ic.assetGetAmount, Price: 1},
"Neo.Asset.GetAssetId": {Func: ic.assetGetAssetID, Price: 1},
"Neo.Asset.GetAssetType": {Func: ic.assetGetAssetType, Price: 1},
"Neo.Asset.GetAvailable": {Func: ic.assetGetAvailable, Price: 1},
"Neo.Asset.GetIssuer": {Func: ic.assetGetIssuer, Price: 1},
"Neo.Asset.GetOwner": {Func: ic.assetGetOwner, Price: 1},
"Neo.Asset.GetPrecision": {Func: ic.assetGetPrecision, Price: 1},
"Neo.Asset.Renew": {Func: ic.assetRenew, Price: 0},
"Neo.Attribute.GetData": {Func: ic.attrGetData, Price: 1},
"Neo.Attribute.GetUsage": {Func: ic.attrGetUsage, Price: 1},
"Neo.Block.GetTransaction": {Func: ic.blockGetTransaction, Price: 1},
"Neo.Block.GetTransactionCount": {Func: ic.blockGetTransactionCount, Price: 1},
"Neo.Block.GetTransactions": {Func: ic.blockGetTransactions, Price: 1},
"Neo.Blockchain.GetAccount": {Func: ic.bcGetAccount, Price: 100},
"Neo.Blockchain.GetAsset": {Func: ic.bcGetAsset, Price: 100},
"Neo.Blockchain.GetBlock": {Func: ic.bcGetBlock, Price: 200},
"Neo.Blockchain.GetContract": {Func: ic.bcGetContract, Price: 100},
"Neo.Blockchain.GetHeader": {Func: ic.bcGetHeader, Price: 100},
"Neo.Blockchain.GetHeight": {Func: ic.bcGetHeight, Price: 1},
"Neo.Blockchain.GetTransaction": {Func: ic.bcGetTransaction, Price: 100},
"Neo.Blockchain.GetTransactionHeight": {Func: ic.bcGetTransactionHeight, Price: 100},
"Neo.Blockchain.GetValidators": {Func: ic.bcGetValidators, Price: 200},
"Neo.Contract.Create": {Func: ic.contractCreate, Price: 0},
"Neo.Contract.Destroy": {Func: ic.contractDestroy, Price: 1},
"Neo.Contract.GetScript": {Func: ic.contractGetScript, Price: 1},
"Neo.Contract.GetStorageContext": {Func: ic.contractGetStorageContext, Price: 1},
"Neo.Contract.IsPayable": {Func: ic.contractIsPayable, Price: 1},
"Neo.Contract.Migrate": {Func: ic.contractMigrate, Price: 0},
"Neo.Header.GetConsensusData": {Func: ic.headerGetConsensusData, Price: 1},
"Neo.Header.GetHash": {Func: ic.headerGetHash, Price: 1},
"Neo.Header.GetIndex": {Func: ic.headerGetIndex, Price: 1},
"Neo.Header.GetMerkleRoot": {Func: ic.headerGetMerkleRoot, Price: 1},
"Neo.Header.GetNextConsensus": {Func: ic.headerGetNextConsensus, Price: 1},
"Neo.Header.GetPrevHash": {Func: ic.headerGetPrevHash, Price: 1},
"Neo.Header.GetTimestamp": {Func: ic.headerGetTimestamp, Price: 1},
"Neo.Header.GetVersion": {Func: ic.headerGetVersion, Price: 1},
"Neo.Input.GetHash": {Func: ic.inputGetHash, Price: 1},
"Neo.Input.GetIndex": {Func: ic.inputGetIndex, Price: 1},
"Neo.Output.GetAssetId": {Func: ic.outputGetAssetID, Price: 1},
"Neo.Output.GetScriptHash": {Func: ic.outputGetScriptHash, Price: 1},
"Neo.Output.GetValue": {Func: ic.outputGetValue, Price: 1},
"Neo.Runtime.CheckWitness": {Func: ic.runtimeCheckWitness, Price: 200},
"Neo.Runtime.GetTime": {Func: ic.runtimeGetTime, Price: 1},
"Neo.Runtime.GetTrigger": {Func: ic.runtimeGetTrigger, Price: 1},
"Neo.Runtime.Log": {Func: ic.runtimeLog, Price: 1},
"Neo.Runtime.Notify": {Func: ic.runtimeNotify, Price: 1},
"Neo.Storage.Delete": {Func: ic.storageDelete, Price: 100},
"Neo.Storage.Get": {Func: ic.storageGet, Price: 100},
"Neo.Storage.GetContext": {Func: ic.storageGetContext, Price: 1},
"Neo.Storage.GetReadOnlyContext": {Func: ic.storageGetReadOnlyContext, Price: 1},
"Neo.Storage.Put": {Func: ic.storagePut, Price: 0},
"Neo.StorageContext.AsReadOnly": {Func: ic.storageContextAsReadOnly, Price: 1},
"Neo.Transaction.GetAttributes": {Func: ic.txGetAttributes, Price: 1},
"Neo.Transaction.GetHash": {Func: ic.txGetHash, Price: 1},
"Neo.Transaction.GetInputs": {Func: ic.txGetInputs, Price: 1},
"Neo.Transaction.GetOutputs": {Func: ic.txGetOutputs, Price: 1},
"Neo.Transaction.GetReferences": {Func: ic.txGetReferences, Price: 200},
"Neo.Transaction.GetType": {Func: ic.txGetType, Price: 1},
"Neo.Transaction.GetUnspentCoins": {Func: ic.txGetUnspentCoins, Price: 200},
"Neo.Transaction.GetWitnesses": {Func: ic.txGetWitnesses, Price: 200},
// "Neo.Enumerator.Concat": {Func: ic.enumeratorConcat, Price: 1},
// "Neo.Enumerator.Create": {Func: ic.enumeratorCreate, Price: 1},
// "Neo.Enumerator.Next": {Func: ic.enumeratorNext, Price: 1},
// "Neo.Enumerator.Value": {Func: ic.enumeratorValue, Price: 1},
// "Neo.InvocationTransaction.GetScript": {ic.invocationTx_GetScript, 1},
// "Neo.Iterator.Concat": {Func: ic.iteratorConcat, Price: 1},
// "Neo.Iterator.Create": {Func: ic.iteratorCreate, Price: 1},
// "Neo.Iterator.Key": {Func: ic.iteratorKey, Price: 1},
// "Neo.Iterator.Keys": {Func: ic.iteratorKeys, Price: 1},
// "Neo.Iterator.Values": {Func: ic.iteratorValues, Price: 1},
"Neo.Runtime.Deserialize": {Func: ic.runtimeDeserialize, Price: 1},
"Neo.Runtime.Serialize": {Func: ic.runtimeSerialize, Price: 1},
// "Neo.Storage.Find": {Func: ic.storageFind, Price: 1},
// "Neo.Witness.GetVerificationScript": {Func: ic.witnessGetVerificationScript, Price: 100},
var neoInterops = []interopedFunction{
{Name: "Neo.Account.GetBalance", Func: (*interopContext).accountGetBalance, Price: 1},
{Name: "Neo.Account.GetScriptHash", Func: (*interopContext).accountGetScriptHash, Price: 1},
{Name: "Neo.Account.GetVotes", Func: (*interopContext).accountGetVotes, Price: 1},
{Name: "Neo.Account.IsStandard", Func: (*interopContext).accountIsStandard, Price: 100},
{Name: "Neo.Asset.Create", Func: (*interopContext).assetCreate, Price: 0},
{Name: "Neo.Asset.GetAdmin", Func: (*interopContext).assetGetAdmin, Price: 1},
{Name: "Neo.Asset.GetAmount", Func: (*interopContext).assetGetAmount, Price: 1},
{Name: "Neo.Asset.GetAssetId", Func: (*interopContext).assetGetAssetID, Price: 1},
{Name: "Neo.Asset.GetAssetType", Func: (*interopContext).assetGetAssetType, Price: 1},
{Name: "Neo.Asset.GetAvailable", Func: (*interopContext).assetGetAvailable, Price: 1},
{Name: "Neo.Asset.GetIssuer", Func: (*interopContext).assetGetIssuer, Price: 1},
{Name: "Neo.Asset.GetOwner", Func: (*interopContext).assetGetOwner, Price: 1},
{Name: "Neo.Asset.GetPrecision", Func: (*interopContext).assetGetPrecision, Price: 1},
{Name: "Neo.Asset.Renew", Func: (*interopContext).assetRenew, Price: 0},
{Name: "Neo.Attribute.GetData", Func: (*interopContext).attrGetData, Price: 1},
{Name: "Neo.Attribute.GetUsage", Func: (*interopContext).attrGetUsage, Price: 1},
{Name: "Neo.Block.GetTransaction", Func: (*interopContext).blockGetTransaction, Price: 1},
{Name: "Neo.Block.GetTransactionCount", Func: (*interopContext).blockGetTransactionCount, Price: 1},
{Name: "Neo.Block.GetTransactions", Func: (*interopContext).blockGetTransactions, Price: 1},
{Name: "Neo.Blockchain.GetAccount", Func: (*interopContext).bcGetAccount, Price: 100},
{Name: "Neo.Blockchain.GetAsset", Func: (*interopContext).bcGetAsset, Price: 100},
{Name: "Neo.Blockchain.GetBlock", Func: (*interopContext).bcGetBlock, Price: 200},
{Name: "Neo.Blockchain.GetContract", Func: (*interopContext).bcGetContract, Price: 100},
{Name: "Neo.Blockchain.GetHeader", Func: (*interopContext).bcGetHeader, Price: 100},
{Name: "Neo.Blockchain.GetHeight", Func: (*interopContext).bcGetHeight, Price: 1},
{Name: "Neo.Blockchain.GetTransaction", Func: (*interopContext).bcGetTransaction, Price: 100},
{Name: "Neo.Blockchain.GetTransactionHeight", Func: (*interopContext).bcGetTransactionHeight, Price: 100},
{Name: "Neo.Blockchain.GetValidators", Func: (*interopContext).bcGetValidators, Price: 200},
{Name: "Neo.Contract.Create", Func: (*interopContext).contractCreate, Price: 0},
{Name: "Neo.Contract.Destroy", Func: (*interopContext).contractDestroy, Price: 1},
{Name: "Neo.Contract.GetScript", Func: (*interopContext).contractGetScript, Price: 1},
{Name: "Neo.Contract.GetStorageContext", Func: (*interopContext).contractGetStorageContext, Price: 1},
{Name: "Neo.Contract.IsPayable", Func: (*interopContext).contractIsPayable, Price: 1},
{Name: "Neo.Contract.Migrate", Func: (*interopContext).contractMigrate, Price: 0},
{Name: "Neo.Header.GetConsensusData", Func: (*interopContext).headerGetConsensusData, Price: 1},
{Name: "Neo.Header.GetHash", Func: (*interopContext).headerGetHash, Price: 1},
{Name: "Neo.Header.GetIndex", Func: (*interopContext).headerGetIndex, Price: 1},
{Name: "Neo.Header.GetMerkleRoot", Func: (*interopContext).headerGetMerkleRoot, Price: 1},
{Name: "Neo.Header.GetNextConsensus", Func: (*interopContext).headerGetNextConsensus, Price: 1},
{Name: "Neo.Header.GetPrevHash", Func: (*interopContext).headerGetPrevHash, Price: 1},
{Name: "Neo.Header.GetTimestamp", Func: (*interopContext).headerGetTimestamp, Price: 1},
{Name: "Neo.Header.GetVersion", Func: (*interopContext).headerGetVersion, Price: 1},
{Name: "Neo.Input.GetHash", Func: (*interopContext).inputGetHash, Price: 1},
{Name: "Neo.Input.GetIndex", Func: (*interopContext).inputGetIndex, Price: 1},
{Name: "Neo.Output.GetAssetId", Func: (*interopContext).outputGetAssetID, Price: 1},
{Name: "Neo.Output.GetScriptHash", Func: (*interopContext).outputGetScriptHash, Price: 1},
{Name: "Neo.Output.GetValue", Func: (*interopContext).outputGetValue, Price: 1},
{Name: "Neo.Runtime.CheckWitness", Func: (*interopContext).runtimeCheckWitness, Price: 200},
{Name: "Neo.Runtime.GetTime", Func: (*interopContext).runtimeGetTime, Price: 1},
{Name: "Neo.Runtime.GetTrigger", Func: (*interopContext).runtimeGetTrigger, Price: 1},
{Name: "Neo.Runtime.Log", Func: (*interopContext).runtimeLog, Price: 1},
{Name: "Neo.Runtime.Notify", Func: (*interopContext).runtimeNotify, Price: 1},
{Name: "Neo.Storage.Delete", Func: (*interopContext).storageDelete, Price: 100},
{Name: "Neo.Storage.Get", Func: (*interopContext).storageGet, Price: 100},
{Name: "Neo.Storage.GetContext", Func: (*interopContext).storageGetContext, Price: 1},
{Name: "Neo.Storage.GetReadOnlyContext", Func: (*interopContext).storageGetReadOnlyContext, Price: 1},
{Name: "Neo.Storage.Put", Func: (*interopContext).storagePut, Price: 0},
{Name: "Neo.StorageContext.AsReadOnly", Func: (*interopContext).storageContextAsReadOnly, Price: 1},
{Name: "Neo.Transaction.GetAttributes", Func: (*interopContext).txGetAttributes, Price: 1},
{Name: "Neo.Transaction.GetHash", Func: (*interopContext).txGetHash, Price: 1},
{Name: "Neo.Transaction.GetInputs", Func: (*interopContext).txGetInputs, Price: 1},
{Name: "Neo.Transaction.GetOutputs", Func: (*interopContext).txGetOutputs, Price: 1},
{Name: "Neo.Transaction.GetReferences", Func: (*interopContext).txGetReferences, Price: 200},
{Name: "Neo.Transaction.GetType", Func: (*interopContext).txGetType, Price: 1},
{Name: "Neo.Transaction.GetUnspentCoins", Func: (*interopContext).txGetUnspentCoins, Price: 200},
{Name: "Neo.Transaction.GetWitnesses", Func: (*interopContext).txGetWitnesses, Price: 200},
// {Name: "Neo.Enumerator.Concat", Func: (*interopContext).enumeratorConcat, Price: 1},
// {Name: "Neo.Enumerator.Create", Func: (*interopContext).enumeratorCreate, Price: 1},
// {Name: "Neo.Enumerator.Next", Func: (*interopContext).enumeratorNext, Price: 1},
// {Name: "Neo.Enumerator.Value", Func: (*interopContext).enumeratorValue, Price: 1},
// {Name: "Neo.InvocationTransaction.GetScript", {ic.invocationTx_GetScript, 1},
// {Name: "Neo.Iterator.Concat", Func: (*interopContext).iteratorConcat, Price: 1},
// {Name: "Neo.Iterator.Create", Func: (*interopContext).iteratorCreate, Price: 1},
// {Name: "Neo.Iterator.Key", Func: (*interopContext).iteratorKey, Price: 1},
// {Name: "Neo.Iterator.Keys", Func: (*interopContext).iteratorKeys, Price: 1},
// {Name: "Neo.Iterator.Values", Func: (*interopContext).iteratorValues, Price: 1},
{Name: "Neo.Runtime.Deserialize", Func: (*interopContext).runtimeDeserialize, Price: 1},
{Name: "Neo.Runtime.Serialize", Func: (*interopContext).runtimeSerialize, Price: 1},
// {Name: "Neo.Storage.Find", Func: (*interopContext).storageFind, Price: 1},
// {Name: "Neo.Witness.GetVerificationScript", Func: (*interopContext).witnessGetVerificationScript, Price: 100},
// Aliases.
// "Neo.Iterator.Next": {Func: ic.enumeratorNext, Price: 1},
// "Neo.Iterator.Value": {Func: ic.enumeratorValue, Price: 1},
// Aliases.
// {Name: "Neo.Iterator.Next", Func: (*interopContext).enumeratorNext, Price: 1},
// {Name: "Neo.Iterator.Value", Func: (*interopContext).enumeratorValue, Price: 1},
// Old compatibility APIs.
"AntShares.Account.GetBalance": {Func: ic.accountGetBalance, Price: 1},
"AntShares.Account.GetScriptHash": {Func: ic.accountGetScriptHash, Price: 1},
"AntShares.Account.GetVotes": {Func: ic.accountGetVotes, Price: 1},
"AntShares.Asset.Create": {Func: ic.assetCreate, Price: 0},
"AntShares.Asset.GetAdmin": {Func: ic.assetGetAdmin, Price: 1},
"AntShares.Asset.GetAmount": {Func: ic.assetGetAmount, Price: 1},
"AntShares.Asset.GetAssetId": {Func: ic.assetGetAssetID, Price: 1},
"AntShares.Asset.GetAssetType": {Func: ic.assetGetAssetType, Price: 1},
"AntShares.Asset.GetAvailable": {Func: ic.assetGetAvailable, Price: 1},
"AntShares.Asset.GetIssuer": {Func: ic.assetGetIssuer, Price: 1},
"AntShares.Asset.GetOwner": {Func: ic.assetGetOwner, Price: 1},
"AntShares.Asset.GetPrecision": {Func: ic.assetGetPrecision, Price: 1},
"AntShares.Asset.Renew": {Func: ic.assetRenew, Price: 0},
"AntShares.Attribute.GetData": {Func: ic.attrGetData, Price: 1},
"AntShares.Attribute.GetUsage": {Func: ic.attrGetUsage, Price: 1},
"AntShares.Block.GetTransaction": {Func: ic.blockGetTransaction, Price: 1},
"AntShares.Block.GetTransactionCount": {Func: ic.blockGetTransactionCount, Price: 1},
"AntShares.Block.GetTransactions": {Func: ic.blockGetTransactions, Price: 1},
"AntShares.Blockchain.GetAccount": {Func: ic.bcGetAccount, Price: 100},
"AntShares.Blockchain.GetAsset": {Func: ic.bcGetAsset, Price: 100},
"AntShares.Blockchain.GetBlock": {Func: ic.bcGetBlock, Price: 200},
"AntShares.Blockchain.GetContract": {Func: ic.bcGetContract, Price: 100},
"AntShares.Blockchain.GetHeader": {Func: ic.bcGetHeader, Price: 100},
"AntShares.Blockchain.GetHeight": {Func: ic.bcGetHeight, Price: 1},
"AntShares.Blockchain.GetTransaction": {Func: ic.bcGetTransaction, Price: 100},
"AntShares.Blockchain.GetValidators": {Func: ic.bcGetValidators, Price: 200},
"AntShares.Contract.Create": {Func: ic.contractCreate, Price: 0},
"AntShares.Contract.Destroy": {Func: ic.contractDestroy, Price: 1},
"AntShares.Contract.GetScript": {Func: ic.contractGetScript, Price: 1},
"AntShares.Contract.GetStorageContext": {Func: ic.contractGetStorageContext, Price: 1},
"AntShares.Contract.Migrate": {Func: ic.contractMigrate, Price: 0},
"AntShares.Header.GetConsensusData": {Func: ic.headerGetConsensusData, Price: 1},
"AntShares.Header.GetHash": {Func: ic.headerGetHash, Price: 1},
"AntShares.Header.GetMerkleRoot": {Func: ic.headerGetMerkleRoot, Price: 1},
"AntShares.Header.GetNextConsensus": {Func: ic.headerGetNextConsensus, Price: 1},
"AntShares.Header.GetPrevHash": {Func: ic.headerGetPrevHash, Price: 1},
"AntShares.Header.GetTimestamp": {Func: ic.headerGetTimestamp, Price: 1},
"AntShares.Header.GetVersion": {Func: ic.headerGetVersion, Price: 1},
"AntShares.Input.GetHash": {Func: ic.inputGetHash, Price: 1},
"AntShares.Input.GetIndex": {Func: ic.inputGetIndex, Price: 1},
"AntShares.Output.GetAssetId": {Func: ic.outputGetAssetID, Price: 1},
"AntShares.Output.GetScriptHash": {Func: ic.outputGetScriptHash, Price: 1},
"AntShares.Output.GetValue": {Func: ic.outputGetValue, Price: 1},
"AntShares.Runtime.CheckWitness": {Func: ic.runtimeCheckWitness, Price: 200},
"AntShares.Runtime.Log": {Func: ic.runtimeLog, Price: 1},
"AntShares.Runtime.Notify": {Func: ic.runtimeNotify, Price: 1},
"AntShares.Storage.Delete": {Func: ic.storageDelete, Price: 100},
"AntShares.Storage.Get": {Func: ic.storageGet, Price: 100},
"AntShares.Storage.GetContext": {Func: ic.storageGetContext, Price: 1},
"AntShares.Storage.Put": {Func: ic.storagePut, Price: 0},
"AntShares.Transaction.GetAttributes": {Func: ic.txGetAttributes, Price: 1},
"AntShares.Transaction.GetHash": {Func: ic.txGetHash, Price: 1},
"AntShares.Transaction.GetInputs": {Func: ic.txGetInputs, Price: 1},
"AntShares.Transaction.GetOutputs": {Func: ic.txGetOutputs, Price: 1},
"AntShares.Transaction.GetReferences": {Func: ic.txGetReferences, Price: 200},
"AntShares.Transaction.GetType": {Func: ic.txGetType, Price: 1},
}
// Old compatibility APIs.
{Name: "AntShares.Account.GetBalance", Func: (*interopContext).accountGetBalance, Price: 1},
{Name: "AntShares.Account.GetScriptHash", Func: (*interopContext).accountGetScriptHash, Price: 1},
{Name: "AntShares.Account.GetVotes", Func: (*interopContext).accountGetVotes, Price: 1},
{Name: "AntShares.Asset.Create", Func: (*interopContext).assetCreate, Price: 0},
{Name: "AntShares.Asset.GetAdmin", Func: (*interopContext).assetGetAdmin, Price: 1},
{Name: "AntShares.Asset.GetAmount", Func: (*interopContext).assetGetAmount, Price: 1},
{Name: "AntShares.Asset.GetAssetId", Func: (*interopContext).assetGetAssetID, Price: 1},
{Name: "AntShares.Asset.GetAssetType", Func: (*interopContext).assetGetAssetType, Price: 1},
{Name: "AntShares.Asset.GetAvailable", Func: (*interopContext).assetGetAvailable, Price: 1},
{Name: "AntShares.Asset.GetIssuer", Func: (*interopContext).assetGetIssuer, Price: 1},
{Name: "AntShares.Asset.GetOwner", Func: (*interopContext).assetGetOwner, Price: 1},
{Name: "AntShares.Asset.GetPrecision", Func: (*interopContext).assetGetPrecision, Price: 1},
{Name: "AntShares.Asset.Renew", Func: (*interopContext).assetRenew, Price: 0},
{Name: "AntShares.Attribute.GetData", Func: (*interopContext).attrGetData, Price: 1},
{Name: "AntShares.Attribute.GetUsage", Func: (*interopContext).attrGetUsage, Price: 1},
{Name: "AntShares.Block.GetTransaction", Func: (*interopContext).blockGetTransaction, Price: 1},
{Name: "AntShares.Block.GetTransactionCount", Func: (*interopContext).blockGetTransactionCount, Price: 1},
{Name: "AntShares.Block.GetTransactions", Func: (*interopContext).blockGetTransactions, Price: 1},
{Name: "AntShares.Blockchain.GetAccount", Func: (*interopContext).bcGetAccount, Price: 100},
{Name: "AntShares.Blockchain.GetAsset", Func: (*interopContext).bcGetAsset, Price: 100},
{Name: "AntShares.Blockchain.GetBlock", Func: (*interopContext).bcGetBlock, Price: 200},
{Name: "AntShares.Blockchain.GetContract", Func: (*interopContext).bcGetContract, Price: 100},
{Name: "AntShares.Blockchain.GetHeader", Func: (*interopContext).bcGetHeader, Price: 100},
{Name: "AntShares.Blockchain.GetHeight", Func: (*interopContext).bcGetHeight, Price: 1},
{Name: "AntShares.Blockchain.GetTransaction", Func: (*interopContext).bcGetTransaction, Price: 100},
{Name: "AntShares.Blockchain.GetValidators", Func: (*interopContext).bcGetValidators, Price: 200},
{Name: "AntShares.Contract.Create", Func: (*interopContext).contractCreate, Price: 0},
{Name: "AntShares.Contract.Destroy", Func: (*interopContext).contractDestroy, Price: 1},
{Name: "AntShares.Contract.GetScript", Func: (*interopContext).contractGetScript, Price: 1},
{Name: "AntShares.Contract.GetStorageContext", Func: (*interopContext).contractGetStorageContext, Price: 1},
{Name: "AntShares.Contract.Migrate", Func: (*interopContext).contractMigrate, Price: 0},
{Name: "AntShares.Header.GetConsensusData", Func: (*interopContext).headerGetConsensusData, Price: 1},
{Name: "AntShares.Header.GetHash", Func: (*interopContext).headerGetHash, Price: 1},
{Name: "AntShares.Header.GetMerkleRoot", Func: (*interopContext).headerGetMerkleRoot, Price: 1},
{Name: "AntShares.Header.GetNextConsensus", Func: (*interopContext).headerGetNextConsensus, Price: 1},
{Name: "AntShares.Header.GetPrevHash", Func: (*interopContext).headerGetPrevHash, Price: 1},
{Name: "AntShares.Header.GetTimestamp", Func: (*interopContext).headerGetTimestamp, Price: 1},
{Name: "AntShares.Header.GetVersion", Func: (*interopContext).headerGetVersion, Price: 1},
{Name: "AntShares.Input.GetHash", Func: (*interopContext).inputGetHash, Price: 1},
{Name: "AntShares.Input.GetIndex", Func: (*interopContext).inputGetIndex, Price: 1},
{Name: "AntShares.Output.GetAssetId", Func: (*interopContext).outputGetAssetID, Price: 1},
{Name: "AntShares.Output.GetScriptHash", Func: (*interopContext).outputGetScriptHash, Price: 1},
{Name: "AntShares.Output.GetValue", Func: (*interopContext).outputGetValue, Price: 1},
{Name: "AntShares.Runtime.CheckWitness", Func: (*interopContext).runtimeCheckWitness, Price: 200},
{Name: "AntShares.Runtime.Log", Func: (*interopContext).runtimeLog, Price: 1},
{Name: "AntShares.Runtime.Notify", Func: (*interopContext).runtimeNotify, Price: 1},
{Name: "AntShares.Storage.Delete", Func: (*interopContext).storageDelete, Price: 100},
{Name: "AntShares.Storage.Get", Func: (*interopContext).storageGet, Price: 100},
{Name: "AntShares.Storage.GetContext", Func: (*interopContext).storageGetContext, Price: 1},
{Name: "AntShares.Storage.Put", Func: (*interopContext).storagePut, Price: 0},
{Name: "AntShares.Transaction.GetAttributes", Func: (*interopContext).txGetAttributes, Price: 1},
{Name: "AntShares.Transaction.GetHash", Func: (*interopContext).txGetHash, Price: 1},
{Name: "AntShares.Transaction.GetInputs", Func: (*interopContext).txGetInputs, Price: 1},
{Name: "AntShares.Transaction.GetOutputs", Func: (*interopContext).txGetOutputs, Price: 1},
{Name: "AntShares.Transaction.GetReferences", Func: (*interopContext).txGetReferences, Price: 200},
{Name: "AntShares.Transaction.GetType", Func: (*interopContext).txGetType, Price: 1},
}
// initIDinInteropsSlice initializes IDs from names in one given
// interopedFunction slice and then sorts it.
func initIDinInteropsSlice(iops []interopedFunction) {
for i := range iops {
iops[i].ID = vm.InteropNameToID([]byte(iops[i].Name))
}
sort.Slice(iops, func(i, j int) bool {
return iops[i].ID < iops[j].ID
})
}
// init initializes IDs in the global interop slices.
func init() {
initIDinInteropsSlice(systemInterops)
initIDinInteropsSlice(neoInterops)
}

57
pkg/vm/interop.go
View file

@ -1,13 +1,63 @@
package vm
import (
"crypto/sha256"
"encoding/binary"
"errors"
"fmt"
"sort"
)
// InteropFunc allows to hook into the VM.
type InteropFunc func(vm *VM) error
// InteropFuncPrice represents an interop function with a price.
type InteropFuncPrice struct {
Func InteropFunc
Price int
}
// interopIDFuncPrice adds an ID to the InteropFuncPrice.
type interopIDFuncPrice struct {
ID uint32
InteropFuncPrice
}
// InteropGetterFunc is a function that returns an interop function-price
// structure by the given interop ID.
type InteropGetterFunc func(uint32) *InteropFuncPrice
var defaultVMInterops = []interopIDFuncPrice{
{InteropNameToID([]byte("Neo.Runtime.Log")),
InteropFuncPrice{runtimeLog, 1}},
{InteropNameToID([]byte("Neo.Runtime.Notify")),
InteropFuncPrice{runtimeNotify, 1}},
{InteropNameToID([]byte("Neo.Runtime.Serialize")),
InteropFuncPrice{RuntimeSerialize, 1}},
{InteropNameToID([]byte("System.Runtime.Serialize")),
InteropFuncPrice{RuntimeSerialize, 1}},
{InteropNameToID([]byte("Neo.Runtime.Deserialize")),
InteropFuncPrice{RuntimeDeserialize, 1}},
{InteropNameToID([]byte("System.Runtime.Deserialize")),
InteropFuncPrice{RuntimeDeserialize, 1}},
}
func getDefaultVMInterop(id uint32) *InteropFuncPrice {
n := sort.Search(len(defaultVMInterops), func(i int) bool {
return defaultVMInterops[i].ID >= id
})
if n < len(defaultVMInterops) && defaultVMInterops[n].ID == id {
return &defaultVMInterops[n].InteropFuncPrice
}
return nil
}
// InteropNameToID returns an identificator of the method based on its name.
func InteropNameToID(name []byte) uint32 {
h := sha256.Sum256(name)
return binary.LittleEndian.Uint32(h[:4])
}
// runtimeLog handles the syscall "Neo.Runtime.Log" for printing and logging stuff.
func runtimeLog(vm *VM) error {
item := vm.Estack().Pop()
@ -50,3 +100,10 @@ func RuntimeDeserialize(vm *VM) error {
return nil
}
// init sorts the global defaultVMInterops value.
func init() {
sort.Slice(defaultVMInterops, func(i, j int) bool {
return defaultVMInterops[i].ID < defaultVMInterops[j].ID
})
}

23
pkg/vm/json_test.go
View file

@ -108,6 +108,18 @@ func TestUT(t *testing.T) {
require.Equal(t, true, testsRan, "neo-vm tests should be available (check submodules)")
}
func getTestingInterop(id uint32) *InteropFuncPrice {
// FIXME in NEO 3.0 it is []byte{0x77, 0x77, 0x77, 0x77} https://github.com/nspcc-dev/neo-go/issues/477
if id == InteropNameToID([]byte("Test.ExecutionEngine.GetScriptContainer")) ||
id == InteropNameToID([]byte("System.ExecutionEngine.GetScriptContainer")) {
return &InteropFuncPrice{InteropFunc(func(v *VM) error {
v.estack.Push(&Element{value: (*InteropItem)(nil)})
return nil
}), 0}
}
return nil
}
func testFile(t *testing.T, filename string) {
data, err := ioutil.ReadFile(filename)
if err != nil {
@ -134,16 +146,7 @@ func testFile(t *testing.T, filename string) {
// FIXME remove when NEO 3.0 https://github.com/nspcc-dev/neo-go/issues/477
vm.getScript = getScript(test.ScriptTable)
// FIXME in NEO 3.0 it is []byte{0x77, 0x77, 0x77, 0x77} https://github.com/nspcc-dev/neo-go/issues/477
vm.RegisterInteropFunc("Test.ExecutionEngine.GetScriptContainer", InteropFunc(func(v *VM) error {
v.estack.Push(&Element{value: (*InteropItem)(nil)})
return nil
}), 0)
vm.RegisterInteropFunc("System.ExecutionEngine.GetScriptContainer", InteropFunc(func(v *VM) error {
v.estack.Push(&Element{value: (*InteropItem)(nil)})
return nil
}), 0)
vm.RegisterInteropGetter(getTestingInterop)
for i := range test.Steps {
execStep(t, vm, test.Steps[i])

25
pkg/vm/tests/vm_test.go
View file

@ -48,9 +48,7 @@ func vmAndCompile(t *testing.T, src string) *vm.VM {
vm := vm.New()
storePlugin := newStoragePlugin()
vm.RegisterInteropFunc("Neo.Storage.Get", storePlugin.Get, 1)
vm.RegisterInteropFunc("Neo.Storage.Put", storePlugin.Put, 1)
vm.RegisterInteropFunc("Neo.Storage.GetContext", storePlugin.GetContext, 1)
vm.RegisterInteropGetter(storePlugin.getInterop)
b, err := compiler.Compile(strings.NewReader(src))
if err != nil {
@ -61,13 +59,28 @@ func vmAndCompile(t *testing.T, src string) *vm.VM {
}
type storagePlugin struct {
mem map[string][]byte
mem map[string][]byte
interops map[uint32]vm.InteropFunc
}
func newStoragePlugin() *storagePlugin {
return &storagePlugin{
mem: make(map[string][]byte),
s := &storagePlugin{
mem: make(map[string][]byte),
interops: make(map[uint32]vm.InteropFunc),
}
s.interops[vm.InteropNameToID([]byte("Neo.Storage.Get"))] = s.Get
s.interops[vm.InteropNameToID([]byte("Neo.Storage.Put"))] = s.Put
s.interops[vm.InteropNameToID([]byte("Neo.Storage.GetContext"))] = s.GetContext
return s
}
func (s *storagePlugin) getInterop(id uint32) *vm.InteropFuncPrice {
f := s.interops[id]
if f != nil {
return &vm.InteropFuncPrice{Func: f, Price: 1}
}
return nil
}
func (s *storagePlugin) Delete(vm *vm.VM) error {

64
pkg/vm/vm.go
View file

@ -60,8 +60,8 @@ const (
type VM struct {
state State
// registered interop hooks.
interop map[string]InteropFuncPrice
// callbacks to get interops.
getInterop []InteropGetterFunc
// callback to get scripts.
getScript func(util.Uint160) []byte
@ -80,19 +80,13 @@ type VM struct {
keys map[string]*keys.PublicKey
}
// InteropFuncPrice represents an interop function with a price.
type InteropFuncPrice struct {
Func InteropFunc
Price int
}
// New returns a new VM object ready to load .avm bytecode scripts.
func New() *VM {
vm := &VM{
interop: make(map[string]InteropFuncPrice),
getScript: nil,
state: haltState,
istack: NewStack("invocation"),
getInterop: make([]InteropGetterFunc, 0, 3), // 3 functions is typical for our default usage.
getScript: nil,
state: haltState,
istack: NewStack("invocation"),
itemCount: make(map[StackItem]int),
keys: make(map[string]*keys.PublicKey),
@ -101,14 +95,7 @@ func New() *VM {
vm.estack = vm.newItemStack("evaluation")
vm.astack = vm.newItemStack("alt")
// Register native interop hooks.
vm.RegisterInteropFunc("Neo.Runtime.Log", runtimeLog, 1)
vm.RegisterInteropFunc("Neo.Runtime.Notify", runtimeNotify, 1)
vm.RegisterInteropFunc("Neo.Runtime.Serialize", RuntimeSerialize, 1)
vm.RegisterInteropFunc("System.Runtime.Serialize", RuntimeSerialize, 1)
vm.RegisterInteropFunc("Neo.Runtime.Deserialize", RuntimeDeserialize, 1)
vm.RegisterInteropFunc("System.Runtime.Deserialize", RuntimeDeserialize, 1)
vm.RegisterInteropGetter(getDefaultVMInterop)
return vm
}
@ -120,18 +107,11 @@ func (v *VM) newItemStack(n string) *Stack {
return s
}
// RegisterInteropFunc registers the given InteropFunc to the VM.
func (v *VM) RegisterInteropFunc(name string, f InteropFunc, price int) {
v.interop[name] = InteropFuncPrice{f, price}
}
// RegisterInteropFuncs registers all interop functions passed in a map in
// the VM. Effectively it's a batched version of RegisterInteropFunc.
func (v *VM) RegisterInteropFuncs(interops map[string]InteropFuncPrice) {
// We allow reregistration here.
for name := range interops {
v.interop[name] = interops[name]
}
// RegisterInteropGetter registers the given InteropGetterFunc into VM. There
// can be many interop getters and they're probed in LIFO order wrt their
// registration time.
func (v *VM) RegisterInteropGetter(f InteropGetterFunc) {
v.getInterop = append(v.getInterop, f)
}
// Estack returns the evaluation stack so interop hooks can utilize this.
@ -1095,9 +1075,23 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
}
case opcode.SYSCALL:
ifunc, ok := v.interop[string(parameter)]
if !ok {
panic(fmt.Sprintf("interop hook (%q) not registered", parameter))
var ifunc *InteropFuncPrice
var interopID uint32
if len(parameter) == 4 {
interopID = binary.LittleEndian.Uint32(parameter)
} else {
interopID = InteropNameToID(parameter)
}
// LIFO interpretation of callbacks.
for i := len(v.getInterop) - 1; i >= 0; i-- {
ifunc = v.getInterop[i](interopID)
if ifunc != nil {
break
}
}
if ifunc == nil {
panic(fmt.Sprintf("interop hook (%q/0x%x) not registered", parameter, interopID))
}
if err := ifunc.Func(v); err != nil {
panic(fmt.Sprintf("failed to invoke syscall: %s", err))

41
pkg/vm/vm_test.go
View file

@ -16,12 +16,19 @@ import (
"github.com/stretchr/testify/require"
)
func fooInteropGetter(id uint32) *InteropFuncPrice {
if id == InteropNameToID([]byte("foo")) {
return &InteropFuncPrice{func(evm *VM) error {
evm.Estack().PushVal(1)
return nil
}, 1}
}
return nil
}
func TestInteropHook(t *testing.T) {
v := New()
v.RegisterInteropFunc("foo", func(evm *VM) error {
evm.Estack().PushVal(1)
return nil
}, 1)
v.RegisterInteropGetter(fooInteropGetter)
buf := new(bytes.Buffer)
EmitSyscall(buf, "foo")
@ -32,13 +39,27 @@ func TestInteropHook(t *testing.T) {
assert.Equal(t, big.NewInt(1), v.estack.Pop().value.Value())
}
func TestRegisterInterop(t *testing.T) {
func TestInteropHookViaID(t *testing.T) {
v := New()
currRegistered := len(v.interop)
v.RegisterInteropFunc("foo", func(evm *VM) error { return nil }, 1)
assert.Equal(t, currRegistered+1, len(v.interop))
_, ok := v.interop["foo"]
assert.Equal(t, true, ok)
v.RegisterInteropGetter(fooInteropGetter)
buf := new(bytes.Buffer)
fooid := InteropNameToID([]byte("foo"))
var id = make([]byte, 4)
binary.LittleEndian.PutUint32(id, fooid)
_ = EmitSyscall(buf, string(id))
_ = EmitOpcode(buf, opcode.RET)
v.Load(buf.Bytes())
runVM(t, v)
assert.Equal(t, 1, v.estack.Len())
assert.Equal(t, big.NewInt(1), v.estack.Pop().value.Value())
}
func TestRegisterInteropGetter(t *testing.T) {
v := New()
currRegistered := len(v.getInterop)
v.RegisterInteropGetter(fooInteropGetter)
assert.Equal(t, currRegistered+1, len(v.getInterop))
}
func TestBytesToPublicKey(t *testing.T) {