-
Notifications
You must be signed in to change notification settings - Fork 6
/
node.go
138 lines (124 loc) · 3.11 KB
/
node.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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
package base
import (
"encoding/hex"
"fmt"
"regexp"
"strings"
"github.com/dipdup-net/go-lib/tools/consts"
"github.com/dipdup-net/go-lib/tools/types"
jsoniter "github.com/json-iterator/go"
)
var json = jsoniter.ConfigCompatibleWithStandardLibrary
// Node - struct for parsing micheline
type Node struct {
Prim string `json:"prim,omitempty"`
Args []*Node `json:"args,omitempty"`
Annots []string `json:"annots,omitempty"`
StringValue *string `json:"string,omitempty"`
BytesValue *string `json:"bytes,omitempty"`
IntValue *types.BigInt `json:"int,omitempty"`
}
// UnmarshalJSON -
func (node *Node) UnmarshalJSON(data []byte) error {
if len(data) == 0 {
return consts.ErrInvalidJSON
}
if data[0] == '[' {
node.Prim = consts.PrimArray
node.Args = make([]*Node, 0)
return json.Unmarshal(data, &node.Args)
} else if data[0] == '{' {
type buf Node
return json.Unmarshal(data, (*buf)(node))
}
return consts.ErrInvalidJSON
}
// MarshalJSON -
func (node *Node) MarshalJSON() ([]byte, error) {
if node.Prim == consts.PrimArray {
return json.Marshal(node.Args)
}
type buf Node
return json.Marshal((*buf)(node))
}
// GetAnnotations - returns all node`s annotations recursively
func (node *Node) GetAnnotations() map[string]struct{} {
annots := make(map[string]struct{})
for i := range node.Annots {
if len(node.Annots[i]) == 0 {
continue
}
if node.Annots[i][0] == consts.AnnotPrefixFieldName || node.Annots[i][0] == consts.AnnotPrefixrefixTypeName {
annots[node.Annots[i][1:]] = struct{}{}
}
}
for i := range node.Args {
for k := range node.Args[i].GetAnnotations() {
annots[k] = struct{}{}
}
}
return annots
}
// Compare -
func (node *Node) Compare(second *Node) bool {
if node.Prim != second.Prim {
return false
}
if len(node.Args) != len(second.Args) {
return false
}
for i := range node.Args {
if !node.Args[i].Compare(second.Args[i]) {
return false
}
}
return true
}
// String - converts node info to string
func (node *Node) String() string {
return node.print(0) + "\n"
}
func (node *Node) print(depth int) string {
var s strings.Builder
s.WriteByte('\n')
s.WriteString(strings.Repeat(consts.DefaultIndent, depth))
switch {
case node.Prim != "":
s.WriteString(node.Prim)
for i := range node.Args {
s.WriteString(node.Args[i].print(depth + 1))
}
case node.IntValue != nil:
s.WriteString(fmt.Sprintf("Int=%d", *node.IntValue))
case node.BytesValue != nil:
s.WriteString(fmt.Sprintf("Bytes=%s", *node.BytesValue))
case node.StringValue != nil:
s.WriteString(fmt.Sprintf("String=%s", *node.StringValue))
}
return s.String()
}
var lambdaPackedReg = regexp.MustCompile("^0502[0-9a-f]{8}0[3-9]")
// IsLambda -
func (node *Node) IsLambda() bool {
if node.BytesValue == nil {
return false
}
input := *node.BytesValue
if len(input) < 24 {
return false
}
if !lambdaPackedReg.MatchString(input) {
return false
}
b, err := hex.DecodeString(input[22:24])
if err != nil {
return false
}
if len(b) != 1 {
return false
}
if 0x0c > b[0] || 0x75 < b[0] {
return false
}
return 0x58 >= b[0] || 0x6f <= b[0]
}