kyverno/pkg/engine/jsonutils/convert.go

package jsonutils

import jsoniter "github.com/json-iterator/go"

var json = jsoniter.ConfigCompatibleWithStandardLibrary

// DocumentToUntyped converts a typed object to JSON data
// i.e. string, []interface{}, map[string]interface{}
func DocumentToUntyped(doc interface{}) (interface{}, error) {
	switch doc.(type) {
	case string, []any, map[string]any:
		return doc, nil
	}

	jsonDoc, err := json.Marshal(doc)
	if err != nil {
		return nil, err
	}

	var untyped interface{}
	err = json.Unmarshal(jsonDoc, &untyped)
	if err != nil {
		return nil, err
	}

	return untyped, nil
}