-
Notifications
You must be signed in to change notification settings - Fork 198
/
baseJournalEntries.go
108 lines (88 loc) · 2.84 KB
/
baseJournalEntries.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
package state
//------- BaseJournalEntryCreation
// BaseJournalEntryCreation creates a new account entry in the state trie
// through updater it can revert the created changes.
type BaseJournalEntryCreation struct {
key []byte
updater Updater
}
// NewBaseJournalEntryCreation outputs a new BaseJournalEntry implementation used to revert an account creation
func NewBaseJournalEntryCreation(key []byte, updater Updater) (*BaseJournalEntryCreation, error) {
if updater == nil || updater.IsInterfaceNil() {
return nil, ErrNilUpdater
}
if len(key) == 0 {
return nil, ErrNilOrEmptyKey
}
return &BaseJournalEntryCreation{
key: key,
updater: updater,
}, nil
}
// Revert applies undo operation
func (bjec *BaseJournalEntryCreation) Revert() (AccountHandler, error) {
return nil, bjec.updater.Update(bjec.key, nil)
}
// IsInterfaceNil returns true if there is no value under the interface
func (bjec *BaseJournalEntryCreation) IsInterfaceNil() bool {
if bjec == nil {
return true
}
return false
}
//------- BaseJournalEntryCodeHash
// BaseJournalEntryCodeHash creates a code hash change in account
type BaseJournalEntryCodeHash struct {
account AccountHandler
oldCodeHash []byte
}
// NewBaseJournalEntryCodeHash outputs a new BaseJournalEntry implementation used to save and revert a code hash change
func NewBaseJournalEntryCodeHash(account AccountHandler, oldCodeHash []byte) (*BaseJournalEntryCodeHash, error) {
if account == nil || account.IsInterfaceNil() {
return nil, ErrNilAccountHandler
}
return &BaseJournalEntryCodeHash{
account: account,
oldCodeHash: oldCodeHash,
}, nil
}
// Revert applies undo operation
func (bjech *BaseJournalEntryCodeHash) Revert() (AccountHandler, error) {
bjech.account.SetCodeHash(bjech.oldCodeHash)
return bjech.account, nil
}
// IsInterfaceNil returns true if there is no value under the interface
func (bjech *BaseJournalEntryCodeHash) IsInterfaceNil() bool {
if bjech == nil {
return true
}
return false
}
//------- BaseJournalEntryNonce
// BaseJournalEntryNonce is used to revert a nonce change
type BaseJournalEntryNonce struct {
account AccountHandler
oldNonce uint64
}
// NewBaseJournalEntryNonce outputs a new JournalEntry implementation used to revert a nonce change
func NewBaseJournalEntryNonce(account AccountHandler, oldNonce uint64) (*BaseJournalEntryNonce, error) {
if account == nil || account.IsInterfaceNil() {
return nil, ErrNilAccountHandler
}
return &BaseJournalEntryNonce{
account: account,
oldNonce: oldNonce,
}, nil
}
// Revert applies undo operation
func (bjen *BaseJournalEntryNonce) Revert() (AccountHandler, error) {
bjen.account.SetNonce(bjen.oldNonce)
return bjen.account, nil
}
// IsInterfaceNil returns true if there is no value under the interface
func (bjen *BaseJournalEntryNonce) IsInterfaceNil() bool {
if bjen == nil {
return true
}
return false
}