/
in_op.go
49 lines (40 loc) · 834 Bytes
/
in_op.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
package types
import (
"reflect"
)
type inOp struct {
slice reflect.Value
}
var _ ValueAppender = (*inOp)(nil)
func InMulti(values ...interface{}) ValueAppender {
return &inOp{
slice: reflect.ValueOf(values),
}
}
func InSlice(slice interface{}) ValueAppender {
return &inOp{
slice: reflect.ValueOf(slice),
}
}
func (in *inOp) AppendValue(b []byte, quote int) []byte {
return appendIn(b, in.slice, quote)
}
func appendIn(b []byte, slice reflect.Value, quote int) []byte {
for i := 0; i < slice.Len(); i++ {
if i > 0 {
b = append(b, ',')
}
elem := slice.Index(i)
if elem.Kind() == reflect.Interface {
elem = elem.Elem()
}
if elem.Kind() == reflect.Slice {
b = append(b, '(')
b = appendIn(b, elem, quote)
b = append(b, ')')
} else {
b = appendValue(b, elem, quote)
}
}
return b
}