-
Notifications
You must be signed in to change notification settings - Fork 0
/
clause.go
108 lines (92 loc) · 2.16 KB
/
clause.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
// Copyright (c) 2018 The VeChainThor developers
// Distributed under the GNU Lesser General Public License v3.0 software license, see the accompanying
// file LICENSE or <https://www.gnu.org/licenses/lgpl-3.0.html>
package tx
import (
"fmt"
"io"
"math/big"
"github.com/ethereum/go-ethereum/rlp"
"github.com/miniBamboo/workshare/workshare"
)
type clauseBody struct {
To *workshare.Address `rlp:"nil"`
Value *big.Int
Data []byte
}
// Clause is the basic execution unit of a transaction.
type Clause struct {
body clauseBody
}
// NewClause create a new clause instance.
func NewClause(to *workshare.Address) *Clause {
if to != nil {
// make a copy of 'to'
cpy := *to
to = &cpy
}
return &Clause{
clauseBody{
to,
&big.Int{},
nil,
},
}
}
// WithValue create a new clause copy with value changed.
func (c *Clause) WithValue(value *big.Int) *Clause {
newClause := *c
newClause.body.Value = new(big.Int).Set(value)
return &newClause
}
// WithData create a new clause copy with data changed.
func (c *Clause) WithData(data []byte) *Clause {
newClause := *c
newClause.body.Data = append([]byte(nil), data...)
return &newClause
}
// To returns 'To' address.
func (c *Clause) To() *workshare.Address {
if c.body.To == nil {
return nil
}
cpy := *c.body.To
return &cpy
}
// Value returns 'Value'.
func (c *Clause) Value() *big.Int {
return new(big.Int).Set(c.body.Value)
}
// Data returns 'Data'.
func (c *Clause) Data() []byte {
return append([]byte(nil), c.body.Data...)
}
// IsCreatingContract return if this clause is going to create a contract.
func (c *Clause) IsCreatingContract() bool {
return c.body.To == nil
}
// EncodeRLP implements rlp.Encoder
func (c *Clause) EncodeRLP(w io.Writer) error {
return rlp.Encode(w, &c.body)
}
// DecodeRLP implements rlp.Decoder
func (c *Clause) DecodeRLP(s *rlp.Stream) error {
var body clauseBody
if err := s.Decode(&body); err != nil {
return err
}
*c = Clause{body}
return nil
}
func (c *Clause) String() string {
var to string
if c.body.To == nil {
to = "nil"
} else {
to = c.body.To.String()
}
return fmt.Sprintf(`
(To: %v
Value: %v
Data: 0x%x)`, to, c.body.Value, c.body.Data)
}