Method StripNulls

pkg/util/json/json.go:1569–1615

()

	return j, false, nil
}
func (j jsonObject) StripNulls() (JSON, bool, error) {
	for i, e := range j {
		var json JSON
		var err error
		needToStrip := false
		hasNullValue := e.v.Type() == NullJSONType
		if !hasNullValue {
			json, needToStrip, err = e.v.StripNulls()
			if err != nil {
				return nil, false, err
			}
		}
		if hasNullValue || needToStrip {
			// Cannot return the original content, need to return the result
			// with new JSON object.
			numNotNulls := i
			for _, elem := range j[i:] {
				if elem.v.Type() != NullJSONType {
					numNotNulls++
				}
			}
			// Use number of fields not having null value to construct newObj
			// so that no need to grow the capacity of newObj.
			newObj := make(jsonObject, 0, numNotNulls)
			newObj = append(newObj, j[:i]...)
			if !hasNullValue {
				newObj = append(newObj, jsonKeyValuePair{
					k: e.k,
					v: json,
				})
			}
			for _, elem := range j[i+1:] {
				if elem.v.Type() != NullJSONType {
					if json, _, err = elem.v.StripNulls(); err != nil {
						return nil, false, err
					}
					newObj = append(newObj, jsonKeyValuePair{
						k: elem.k,
						v: json,
					})
				}
			}
			return newObj, true, nil
		}
	}
	return j, false, nil
}

func (jsonNull) ObjectIter() (*ObjectIterator, error) {
	return nil, nil