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|
package dasel
import (
"fmt"
"reflect"
)
var MapOfFunc = BasicFunction{
name: "mapOf",
runFn: func(c *Context, s *Step, args []string) (Values, error) {
if err := requireXOrMoreArgs("mapOf", args, 2); err != nil {
return nil, err
}
if err := requireModulusXArgs("mapOf", args, 2); err != nil {
return nil, err
}
input := s.inputs()
type pair struct {
key string
selector string
}
pairs := make([]pair, 0)
currentPair := pair{}
for i, v := range args {
switch i % 2 {
case 0:
currentPair.key = v
case 1:
currentPair.selector = v
pairs = append(pairs, currentPair)
currentPair = pair{}
}
}
getValue := func(value Value, p pair) (Value, error) {
gotValues, err := c.subSelect(value, p.selector)
if err != nil {
return Value{}, err
}
if len(gotValues) != 1 {
return Value{}, fmt.Errorf("mapOf expects selector to return exactly 1 value")
}
return gotValues[0], nil
}
res := make(Values, 0)
for _, val := range input {
result := reflect.MakeMap(mapStringInterfaceType)
for _, p := range pairs {
gotValue, err := getValue(val, p)
if err != nil {
return nil, err
}
result.SetMapIndex(reflect.ValueOf(p.key), gotValue.Value)
}
res = append(res, ValueOf(result))
}
return res, nil
},
}
|
