core/vm: minor trivial clean up (ethereum#25880)

XinFinOrg · Oct 17, 2024 · 480adaf · 480adaf
1 parent 69cb57a
commit 480adaf
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Showing 2 changed files with 5 additions and 14 deletions.
diff --git a/core/vm/instructions.go b/core/vm/instructions.go
@@ -22,8 +22,8 @@ import (
 	"github.com/XinFinOrg/XDPoSChain/common"
 	"github.com/XinFinOrg/XDPoSChain/core/types"
 	"github.com/XinFinOrg/XDPoSChain/params"
+	"github.com/XinFinOrg/XDPoSChain/crypto"
 	"github.com/holiman/uint256"
-	"golang.org/x/crypto/sha3"
 )
 
 func opAdd(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
@@ -238,7 +238,7 @@ func opKeccak256(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) (
 	data := scope.Memory.GetPtr(int64(offset.Uint64()), int64(size.Uint64()))
 
 	if interpreter.hasher == nil {
-		interpreter.hasher = sha3.NewLegacyKeccak256().(keccakState)
+		interpreter.hasher = crypto.NewKeccakState()
 	} else {
 		interpreter.hasher.Reset()
 	}

diff --git a/core/vm/interpreter.go b/core/vm/interpreter.go
@@ -17,10 +17,9 @@
 package vm
 
 import (
-	"hash"
-
 	"github.com/XinFinOrg/XDPoSChain/common"
 	"github.com/XinFinOrg/XDPoSChain/common/math"
+	"github.com/XinFinOrg/XDPoSChain/crypto"
 	"github.com/XinFinOrg/XDPoSChain/log"
 )
 
@@ -68,21 +67,13 @@ type ScopeContext struct {
 	Contract *Contract
 }
 
-// keccakState wraps sha3.state. In addition to the usual hash methods, it also supports
-// Read to get a variable amount of data from the hash state. Read is faster than Sum
-// because it doesn't copy the internal state, but also modifies the internal state.
-type keccakState interface {
-	hash.Hash
-	Read([]byte) (int, error)
-}
-
 // EVMInterpreter represents an EVM interpreter
 type EVMInterpreter struct {
 	evm *EVM
 	cfg Config
 
-	hasher    keccakState // Keccak256 hasher instance shared across opcodes
-	hasherBuf common.Hash // Keccak256 hasher result array shared aross opcodes
+	hasher    crypto.KeccakState // Keccak256 hasher instance shared across opcodes
+	hasherBuf common.Hash        // Keccak256 hasher result array shared aross opcodes
 
 	readOnly   bool   // Whether to throw on stateful modifications
 	returnData []byte // Last CALL's return data for subsequent reuse