-
Notifications
You must be signed in to change notification settings - Fork 188
/
account_key_nil.go
101 lines (82 loc) · 3.31 KB
/
account_key_nil.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
// Copyright 2019 The klaytn Authors
// This file is part of the klaytn library.
//
// The klaytn library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The klaytn library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the klaytn library. If not, see <http://www.gnu.org/licenses/>.
package accountkey
import (
"crypto/ecdsa"
"github.com/klaytn/klaytn/kerrors"
"github.com/klaytn/klaytn/ser/rlp"
"io"
)
// AccountKeyNil represents a key having nothing.
// This object is used when executing TxTypeAccountUpdate with a role-based key.
// If an item is an AccountKeyNil object, the corresponding key will not be updated.
// For example, if TxTypeAccountUpdate tries to update the account's key to
// [AccountKeyPublic, AccountKeyNil, AccountKeyPublic], the second item will not be updated in the account.
type AccountKeyNil struct {
}
var globalNilKey = &AccountKeyNil{}
// NewAccountKeyNil creates a new AccountKeyNil object.
// Since AccountKeyNil has no attributes, use one global variable for all allocations.
func NewAccountKeyNil() *AccountKeyNil { return globalNilKey }
func (a *AccountKeyNil) Type() AccountKeyType {
return AccountKeyTypeNil
}
func (a *AccountKeyNil) IsCompositeType() bool {
return false
}
func (a *AccountKeyNil) Equal(b AccountKey) bool {
if _, ok := b.(*AccountKeyNil); !ok {
return false
}
// if b is a type of AccountKeyNil, just return true.
return true
}
func (a *AccountKeyNil) EncodeRLP(w io.Writer) error {
return nil
}
func (a *AccountKeyNil) DecodeRLP(s *rlp.Stream) error {
return nil
}
func (a *AccountKeyNil) Validate(r RoleType, pubkeys []*ecdsa.PublicKey) bool {
logger.ErrorWithStack("this function should not be called. Validation should be done at ValidateSender or ValidateFeePayer")
return false
}
func (a *AccountKeyNil) String() string {
return "AccountKeyNil"
}
func (a *AccountKeyNil) DeepCopy() AccountKey {
return NewAccountKeyNil()
}
func (a *AccountKeyNil) AccountCreationGas(currentBlockNumber uint64) (uint64, error) {
// No gas required to make an account with a nil key.
return 0, nil
}
func (a *AccountKeyNil) SigValidationGas(currentBlockNumber uint64, r RoleType) (uint64, error) {
// No gas required to make an account with a nil key.
return 0, nil
}
func (a *AccountKeyNil) CheckInstallable(currentBlockNumber uint64) error {
// Since AccountKeyNil cannot be assigned to an account, it always returns error.
return kerrors.ErrAccountKeyNilUninitializable
}
func (a *AccountKeyNil) CheckUpdatable(newKey AccountKey, currentBlockNumber uint64) error {
// Since AccountKeyNil cannot be assigned to an account, it should not be called.
return kerrors.ErrAccountKeyNilUninitializable
}
func (a *AccountKeyNil) Update(newKey AccountKey, currentBlockNumber uint64) error {
// Since AccountKeyNil cannot be assigned to an account, it should not be called.
return kerrors.ErrDifferentAccountKeyType
}