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
|
package dasel
import (
"fmt"
"reflect"
"strings"
)
type ErrPropertyNotFound struct {
Property string
}
func (e ErrPropertyNotFound) Error() string {
return fmt.Sprintf("property not found: %s", e.Property)
}
func (e ErrPropertyNotFound) Is(other error) bool {
o, ok := other.(*ErrPropertyNotFound)
if !ok {
return false
}
if o.Property != "" && o.Property != e.Property {
return false
}
return true
}
var PropertyFunc = BasicFunction{
name: "property",
runFn: func(c *Context, s *Step, args []string) (Values, error) {
if err := requireXOrMoreArgs("property", args, 1); err != nil {
return nil, err
}
input := s.inputs()
if c.CreateWhenMissing() {
input = input.initEmptydencodingMaps()
}
res := make(Values, 0)
for _, val := range input {
for _, property := range args {
isOptional := strings.HasSuffix(property, "?")
if isOptional {
property = strings.TrimSuffix(property, "?")
}
switch val.Kind() {
case reflect.Map:
index := val.MapIndex(ValueOf(property))
if index.IsEmpty() {
if isOptional {
continue
}
if !c.CreateWhenMissing() {
return nil, fmt.Errorf("could not access map index: %w", &ErrPropertyNotFound{Property: property})
}
index = index.asUninitialised()
}
res = append(res, index)
case reflect.Struct:
value := val.FieldByName(property)
if value.IsEmpty() {
if isOptional {
continue
}
return nil, fmt.Errorf("could not access struct field: %w", &ErrPropertyNotFound{Property: property})
}
res = append(res, value)
default:
if val.IsDencodingMap() {
index := val.dencodingMapIndex(ValueOf(property))
if index.IsEmpty() {
if isOptional {
continue
}
if !c.CreateWhenMissing() {
return nil, fmt.Errorf("could not access map index: %w", &ErrPropertyNotFound{Property: property})
}
index = index.asUninitialised()
}
res = append(res, index)
} else {
return nil, fmt.Errorf("cannot use property selector on non map/struct types: %s: %w", val.Kind().String(), &ErrPropertyNotFound{Property: property})
}
}
}
}
return res, nil
},
}
|
