copy accesslist

eth/core/state/journal/access_list.go

@@ -79,6 +79,11 @@ func (al *accessList) SlotInAccessList(addr common.Address, slot common.Hash) (b
 	return al.Peek().Contains(addr, slot)
 }
 
+func (al *accessList) Snapshot() int {
+	al.Push(al.Peek().Copy())
+	return al.baseJournal.Size() - 1
+}
+
 // Finalize implements `libtypes.Controllable`.
 func (al *accessList) Finalize() {
 	*al = *utils.MustGetAs[*accessList](NewAccesslist())

eth/core/state/journal/access_list_test.go

@@ -21,6 +21,8 @@
 package journal
 
 import (
+	"fmt"
+
 	"pkg.berachain.dev/polaris/eth/common"
 	"pkg.berachain.dev/polaris/lib/utils"
 
@@ -55,12 +57,18 @@ var _ = Describe("AccessList", func() {
 		al.AddSlotToAccessList(a1, s1)
 		al.AddSlotToAccessList(a1, s2)
 
+		fmt.Println(al.Peek())
+		fmt.Println(al.Size())
 		id := al.Snapshot()
-
+		fmt.Println("SNAPSHOT", id)
 		al.AddSlotToAccessList(a2, s1)
+		fmt.Println(al.Peek())
+		fmt.Println(al.Size())
+
 		Expect(al.AddressInAccessList(a2)).To(BeTrue())
 
 		al.RevertToSnapshot(id)
+		fmt.Println(al.Size())
 		Expect(al.AddressInAccessList(a2)).To(BeFalse())
 
 		Expect(func() { al.Finalize() }).ToNot(Panic())