diff --git a/pkg/core/interop/context.go b/pkg/core/interop/context.go
index a22980793..93417ecc7 100644
--- a/pkg/core/interop/context.go
+++ b/pkg/core/interop/context.go
@@ -8,13 +8,14 @@ import (
"sort"
"strings"
+ "github.com/nspcc-dev/neo-go/pkg/config"
"github.com/nspcc-dev/neo-go/pkg/core/block"
- "github.com/nspcc-dev/neo-go/pkg/core/blockchainer"
"github.com/nspcc-dev/neo-go/pkg/core/dao"
"github.com/nspcc-dev/neo-go/pkg/core/interop/interopnames"
"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/crypto/hash"
+ "github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
@@ -33,9 +34,22 @@ const (
DefaultBaseExecFee = 30
)
+// Ledger is the interface to Blockchain required for Context functionality.
+type Ledger interface {
+ BlockHeight() uint32
+ CurrentBlockHash() util.Uint256
+ GetBaseExecFee() int64
+ GetBlock(hash util.Uint256) (*block.Block, error)
+ GetConfig() config.ProtocolConfiguration
+ GetHeaderHash(int) util.Uint256
+ GetStandByCommittee() keys.PublicKeys
+ GetStandByValidators() keys.PublicKeys
+ GetStoragePrice() int64
+}
+
// Context represents context in which interops are executed.
type Context struct {
- Chain blockchainer.Blockchainer
+ Chain Ledger
Container hash.Hashable
Network uint32
Natives []Contract
@@ -56,7 +70,7 @@ type Context struct {
}
// NewContext returns new interop context.
-func NewContext(trigger trigger.Type, bc blockchainer.Blockchainer, d dao.DAO,
+func NewContext(trigger trigger.Type, bc Ledger, d dao.DAO,
getContract func(dao.DAO, util.Uint160) (*state.Contract, error), natives []Contract,
block *block.Block, tx *transaction.Transaction, log *zap.Logger) *Context {
baseExecFee := int64(DefaultBaseExecFee)
diff --git a/pkg/core/native/ledger.go b/pkg/core/native/ledger.go
index 2d958d629..496ccc640 100644
--- a/pkg/core/native/ledger.go
+++ b/pkg/core/native/ledger.go
@@ -6,7 +6,6 @@ import (
"math/big"
"github.com/nspcc-dev/neo-go/pkg/core/block"
- "github.com/nspcc-dev/neo-go/pkg/core/blockchainer"
"github.com/nspcc-dev/neo-go/pkg/core/dao"
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
@@ -145,17 +144,17 @@ func (l *Ledger) getTransactionFromBlock(ic *interop.Context, params []stackitem
// isTraceableBlock defines whether we're able to give information about
// the block with index specified.
-func isTraceableBlock(bc blockchainer.Blockchainer, index uint32) bool {
+func isTraceableBlock(bc interop.Ledger, index uint32) bool {
height := bc.BlockHeight()
MaxTraceableBlocks := bc.GetConfig().MaxTraceableBlocks
return index <= height && index+MaxTraceableBlocks > height
}
// getBlockHashFromItem converts given stackitem.Item to block hash using given
-// Blockchainer if needed. Interop functions accept both block numbers and
+// Ledger if needed. Interop functions accept both block numbers and
// block hashes as parameters, thus this function is needed. It's supposed to
// be called within VM context, so it panics if anything goes wrong.
-func getBlockHashFromItem(bc blockchainer.Blockchainer, item stackitem.Item) util.Uint256 {
+func getBlockHashFromItem(bc interop.Ledger, item stackitem.Item) util.Uint256 {
bigindex, err := item.TryInteger()
if err == nil && bigindex.IsUint64() {
index := bigindex.Uint64()
diff --git a/pkg/core/native/native_neo.go b/pkg/core/native/native_neo.go
index 163525080..50f61c989 100644
--- a/pkg/core/native/native_neo.go
+++ b/pkg/core/native/native_neo.go
@@ -10,7 +10,6 @@ import (
"strings"
"sync/atomic"
- "github.com/nspcc-dev/neo-go/pkg/core/blockchainer"
"github.com/nspcc-dev/neo-go/pkg/core/dao"
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/interop/runtime"
@@ -244,7 +243,7 @@ func (n *NEO) Initialize(ic *interop.Context) error {
// InitializeCache initializes all NEO cache with the proper values from storage.
// Cache initialisation should be done apart from Initialize because Initialize is
// called only when deploying native contracts.
-func (n *NEO) InitializeCache(bc blockchainer.Blockchainer, d dao.DAO) error {
+func (n *NEO) InitializeCache(bc interop.Ledger, d dao.DAO) error {
var committee = keysWithVotes{}
si := d.GetStorageItem(n.ID, prefixCommittee)
if err := committee.DecodeBytes(si); err != nil {
@@ -264,7 +263,7 @@ func (n *NEO) InitializeCache(bc blockchainer.Blockchainer, d dao.DAO) error {
return nil
}
-func (n *NEO) updateCache(cvs keysWithVotes, bc blockchainer.Blockchainer) error {
+func (n *NEO) updateCache(cvs keysWithVotes, bc interop.Ledger) error {
n.committee.Store(cvs)
var committee = n.GetCommitteeMembers()
@@ -300,7 +299,7 @@ func (n *NEO) updateCommittee(ic *interop.Context) error {
}
// ShouldUpdateCommittee returns true if committee is updated at block h.
-func ShouldUpdateCommittee(h uint32, bc blockchainer.Blockchainer) bool {
+func ShouldUpdateCommittee(h uint32, bc interop.Ledger) bool {
cfg := bc.GetConfig()
r := len(cfg.StandbyCommittee)
return h%uint32(r) == 0
@@ -925,7 +924,7 @@ func (n *NEO) getAccountState(ic *interop.Context, args []stackitem.Item) stacki
}
// ComputeNextBlockValidators returns an actual list of current validators.
-func (n *NEO) ComputeNextBlockValidators(bc blockchainer.Blockchainer, d dao.DAO) (keys.PublicKeys, error) {
+func (n *NEO) ComputeNextBlockValidators(bc interop.Ledger, d dao.DAO) (keys.PublicKeys, error) {
if vals := n.validators.Load().(keys.PublicKeys); vals != nil {
return vals.Copy(), nil
}
@@ -982,7 +981,7 @@ func toKeysWithVotes(pubs keys.PublicKeys) keysWithVotes {
}
// computeCommitteeMembers returns public keys of nodes in committee.
-func (n *NEO) computeCommitteeMembers(bc blockchainer.Blockchainer, d dao.DAO) (keys.PublicKeys, keysWithVotes, error) {
+func (n *NEO) computeCommitteeMembers(bc interop.Ledger, d dao.DAO) (keys.PublicKeys, keysWithVotes, error) {
key := []byte{prefixVotersCount}
si := d.GetStorageItem(n.ID, key)
if si == nil {