forked from vetcher/go-astra
-
Notifications
You must be signed in to change notification settings - Fork 0
/
util.go
217 lines (201 loc) · 3.59 KB
/
util.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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
package types
// List of all builtin types.
var BuiltinTypes = map[string]bool{
"bool": true,
"uint8": true,
"uint16": true,
"uint32": true,
"uint64": true,
"int8": true,
"int16": true,
"int32": true,
"int64": true,
"float32": true,
"float64": true,
"complex64": true,
"complex128": true,
"string": true,
"int": true,
"uint": true,
"uintptr": true,
"byte": true,
"rune": true,
"error": true,
}
// List of all builtin functions.
var BuiltinFunctions = map[string]bool{
"append": true,
"copy": true,
"delete": true,
"len": true,
"cap": true,
"make": true,
"new": true,
"complex": true,
"real": true,
"imag": true,
"close": true,
"panic": true,
"recover": true,
"print": true,
"println": true,
}
// Checks is type is builtin type.
func IsBuiltin(t Type) bool {
name, ok := t.(TName)
return ok && IsBuiltinTypeString(name.TypeName)
}
func IsBuiltinTypeString(t string) bool {
return BuiltinTypes[t]
}
func IsBuiltinFuncString(t string) bool {
return BuiltinFunctions[t]
}
func IsBuiltinString(t string) bool {
return IsBuiltinTypeString(t) || IsBuiltinFuncString(t)
}
// Returns name of type if it has it.
// Raw maps and interfaces do not have names.
func TypeName(t Type) *string {
for {
switch tt := t.(type) {
case TName:
return &tt.TypeName
case TInterface:
return nil
case TMap:
return nil
default:
next, ok := tt.(LinearType)
if !ok {
return nil
}
t = next.NextType()
}
}
}
// Returns Import of type or nil.
func TypeImport(t Type) *Import {
for {
switch tt := t.(type) {
case TImport:
return tt.Import
default:
next, ok := tt.(LinearType)
if !ok {
return nil
}
t = next.NextType()
}
}
}
// Returns first array entity of type.
// If array not found, returns nil.
func TypeArray(t Type) Type {
for {
switch tt := t.(type) {
case TArray:
return tt
case TInterface:
return nil
case TMap:
return nil
default:
next, ok := tt.(LinearType)
if !ok {
return nil
}
t = next.NextType()
}
}
}
func TypeMap(t Type) Type {
for {
switch tt := t.(type) {
case TInterface:
return nil
case TMap:
return tt
default:
next, ok := tt.(LinearType)
if !ok {
return nil
}
t = next.NextType()
}
}
}
func TypeInterface(t Type) Type {
for {
switch tt := t.(type) {
case TInterface:
return tt
default:
next, ok := tt.(LinearType)
if !ok {
return nil
}
t = next.NextType()
}
}
}
func TypeEllipsis(t Type) Type {
for {
switch tt := t.(type) {
case TEllipsis:
return tt
default:
next, ok := tt.(LinearType)
if !ok {
return nil
}
t = next.NextType()
}
}
}
func TypeStruct(t Type) Type {
for {
switch tt := t.(type) {
case Struct:
return tt
default:
next, ok := tt.(LinearType)
if !ok {
return nil
}
t = next.NextType()
}
}
}
func TypeFunction(t Type) Type {
for {
switch tt := t.(type) {
case Function:
return tt
default:
next, ok := tt.(LinearType)
if !ok {
return nil
}
t = next.NextType()
}
}
}
func IsType(f func(Type) Type) func(Type) bool {
return func(t Type) bool {
return f(t) != nil
}
}
// Checks, is type contain some type.
// Generic checkers.
var (
// Checks, is type contain array.
IsArray = IsType(TypeArray)
// Checks, is type contain map.
IsMap = IsType(TypeMap)
// Checks, is type contain interface.
IsInterface = IsType(TypeInterface)
IsEllipsis = IsType(TypeEllipsis)
IsStruct = IsType(TypeStruct)
IsFunction = IsType(TypeFunction)
)