-
-
Notifications
You must be signed in to change notification settings - Fork 1.5k
/
gconv_convert.go
358 lines (325 loc) · 8.88 KB
/
gconv_convert.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
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.
package gconv
import (
"context"
"reflect"
"time"
"github.com/gogf/gf/v2/internal/intlog"
"github.com/gogf/gf/v2/internal/json"
"github.com/gogf/gf/v2/os/gtime"
)
// Convert converts the variable `fromValue` to the type `toTypeName`, the type `toTypeName` is specified by string.
//
// The optional parameter `extraParams` is used for additional necessary parameter for this conversion.
// It supports common basic types conversion as its conversion based on type name string.
func Convert(fromValue interface{}, toTypeName string, extraParams ...interface{}) interface{} {
return doConvert(doConvertInput{
FromValue: fromValue,
ToTypeName: toTypeName,
ReferValue: nil,
Extra: extraParams,
})
}
// ConvertWithRefer converts the variable `fromValue` to the type referred by value `referValue`.
//
// The optional parameter `extraParams` is used for additional necessary parameter for this conversion.
// It supports common basic types conversion as its conversion based on type name string.
func ConvertWithRefer(fromValue interface{}, referValue interface{}, extraParams ...interface{}) interface{} {
var referValueRf reflect.Value
if v, ok := referValue.(reflect.Value); ok {
referValueRf = v
} else {
referValueRf = reflect.ValueOf(referValue)
}
return doConvert(doConvertInput{
FromValue: fromValue,
ToTypeName: referValueRf.Type().String(),
ReferValue: referValue,
Extra: extraParams,
})
}
type doConvertInput struct {
FromValue interface{} // Value that is converted from.
ToTypeName string // Target value type name in string.
ReferValue interface{} // Referred value, a value in type `ToTypeName`. Note that its type might be reflect.Value.
Extra []interface{} // Extra values for implementing the converting.
// Marks that the value is already converted and set to `ReferValue`. Caller can ignore the returned result.
// It is an attribute for internal usage purpose.
alreadySetToReferValue bool
}
// doConvert does commonly use types converting.
func doConvert(in doConvertInput) (convertedValue interface{}) {
switch in.ToTypeName {
case "int":
return Int(in.FromValue)
case "*int":
if _, ok := in.FromValue.(*int); ok {
return in.FromValue
}
v := Int(in.FromValue)
return &v
case "int8":
return Int8(in.FromValue)
case "*int8":
if _, ok := in.FromValue.(*int8); ok {
return in.FromValue
}
v := Int8(in.FromValue)
return &v
case "int16":
return Int16(in.FromValue)
case "*int16":
if _, ok := in.FromValue.(*int16); ok {
return in.FromValue
}
v := Int16(in.FromValue)
return &v
case "int32":
return Int32(in.FromValue)
case "*int32":
if _, ok := in.FromValue.(*int32); ok {
return in.FromValue
}
v := Int32(in.FromValue)
return &v
case "int64":
return Int64(in.FromValue)
case "*int64":
if _, ok := in.FromValue.(*int64); ok {
return in.FromValue
}
v := Int64(in.FromValue)
return &v
case "uint":
return Uint(in.FromValue)
case "*uint":
if _, ok := in.FromValue.(*uint); ok {
return in.FromValue
}
v := Uint(in.FromValue)
return &v
case "uint8":
return Uint8(in.FromValue)
case "*uint8":
if _, ok := in.FromValue.(*uint8); ok {
return in.FromValue
}
v := Uint8(in.FromValue)
return &v
case "uint16":
return Uint16(in.FromValue)
case "*uint16":
if _, ok := in.FromValue.(*uint16); ok {
return in.FromValue
}
v := Uint16(in.FromValue)
return &v
case "uint32":
return Uint32(in.FromValue)
case "*uint32":
if _, ok := in.FromValue.(*uint32); ok {
return in.FromValue
}
v := Uint32(in.FromValue)
return &v
case "uint64":
return Uint64(in.FromValue)
case "*uint64":
if _, ok := in.FromValue.(*uint64); ok {
return in.FromValue
}
v := Uint64(in.FromValue)
return &v
case "float32":
return Float32(in.FromValue)
case "*float32":
if _, ok := in.FromValue.(*float32); ok {
return in.FromValue
}
v := Float32(in.FromValue)
return &v
case "float64":
return Float64(in.FromValue)
case "*float64":
if _, ok := in.FromValue.(*float64); ok {
return in.FromValue
}
v := Float64(in.FromValue)
return &v
case "bool":
return Bool(in.FromValue)
case "*bool":
if _, ok := in.FromValue.(*bool); ok {
return in.FromValue
}
v := Bool(in.FromValue)
return &v
case "string":
return String(in.FromValue)
case "*string":
if _, ok := in.FromValue.(*string); ok {
return in.FromValue
}
v := String(in.FromValue)
return &v
case "[]byte":
return Bytes(in.FromValue)
case "[]int":
return Ints(in.FromValue)
case "[]int32":
return Int32s(in.FromValue)
case "[]int64":
return Int64s(in.FromValue)
case "[]uint":
return Uints(in.FromValue)
case "[]uint8":
return Bytes(in.FromValue)
case "[]uint32":
return Uint32s(in.FromValue)
case "[]uint64":
return Uint64s(in.FromValue)
case "[]float32":
return Float32s(in.FromValue)
case "[]float64":
return Float64s(in.FromValue)
case "[]string":
return Strings(in.FromValue)
case "Time", "time.Time":
if len(in.Extra) > 0 {
return Time(in.FromValue, String(in.Extra[0]))
}
return Time(in.FromValue)
case "*time.Time":
var v time.Time
if len(in.Extra) > 0 {
v = Time(in.FromValue, String(in.Extra[0]))
} else {
if _, ok := in.FromValue.(*time.Time); ok {
return in.FromValue
}
v = Time(in.FromValue)
}
return &v
case "GTime", "gtime.Time":
if len(in.Extra) > 0 {
if v := GTime(in.FromValue, String(in.Extra[0])); v != nil {
return *v
} else {
return *gtime.New()
}
}
if v := GTime(in.FromValue); v != nil {
return *v
} else {
return *gtime.New()
}
case "*gtime.Time":
if len(in.Extra) > 0 {
if v := GTime(in.FromValue, String(in.Extra[0])); v != nil {
return v
} else {
return gtime.New()
}
}
if v := GTime(in.FromValue); v != nil {
return v
} else {
return gtime.New()
}
case "Duration", "time.Duration":
return Duration(in.FromValue)
case "*time.Duration":
if _, ok := in.FromValue.(*time.Duration); ok {
return in.FromValue
}
v := Duration(in.FromValue)
return &v
case "map[string]string":
return MapStrStr(in.FromValue)
case "map[string]interface{}":
return Map(in.FromValue)
case "[]map[string]interface{}":
return Maps(in.FromValue)
case "RawMessage", "json.RawMessage":
// issue 3449
bytes, err := json.Marshal(in.FromValue)
if err != nil {
intlog.Errorf(context.TODO(), `%+v`, err)
}
return bytes
default:
if in.ReferValue != nil {
var referReflectValue reflect.Value
if v, ok := in.ReferValue.(reflect.Value); ok {
referReflectValue = v
} else {
referReflectValue = reflect.ValueOf(in.ReferValue)
}
var fromReflectValue reflect.Value
if v, ok := in.FromValue.(reflect.Value); ok {
fromReflectValue = v
} else {
fromReflectValue = reflect.ValueOf(in.FromValue)
}
// custom converter.
if dstReflectValue, ok, _ := callCustomConverterWithRefer(fromReflectValue, referReflectValue); ok {
return dstReflectValue.Interface()
}
defer func() {
if recover() != nil {
in.alreadySetToReferValue = false
if err := bindVarToReflectValue(referReflectValue, in.FromValue, nil); err == nil {
in.alreadySetToReferValue = true
convertedValue = referReflectValue.Interface()
}
}
}()
switch referReflectValue.Kind() {
case reflect.Ptr:
// Type converting for custom type pointers.
// Eg:
// type PayMode int
// type Req struct{
// Mode *PayMode
// }
//
// Struct(`{"Mode": 1000}`, &req)
originType := referReflectValue.Type().Elem()
switch originType.Kind() {
case reflect.Struct:
// Not support some kinds.
default:
in.ToTypeName = originType.Kind().String()
in.ReferValue = nil
refElementValue := reflect.ValueOf(doConvert(in))
originTypeValue := reflect.New(refElementValue.Type()).Elem()
originTypeValue.Set(refElementValue)
in.alreadySetToReferValue = true
return originTypeValue.Addr().Convert(referReflectValue.Type()).Interface()
}
case reflect.Map:
var targetValue = reflect.New(referReflectValue.Type()).Elem()
if err := doMapToMap(in.FromValue, targetValue); err == nil {
in.alreadySetToReferValue = true
}
return targetValue.Interface()
}
in.ToTypeName = referReflectValue.Kind().String()
in.ReferValue = nil
in.alreadySetToReferValue = true
convertedValue = reflect.ValueOf(doConvert(in)).Convert(referReflectValue.Type()).Interface()
return convertedValue
}
return in.FromValue
}
}
func doConvertWithReflectValueSet(reflectValue reflect.Value, in doConvertInput) {
convertedValue := doConvert(in)
if !in.alreadySetToReferValue {
reflectValue.Set(reflect.ValueOf(convertedValue))
}
}