Function NewFixedKeysObjectBuilder

pkg/util/json/json.go:421–438

NewFixedKeysObjectBuilder creates JSON object builder for the specified set of fixed, unique keys.

(keys []string)

// NewFixedKeysObjectBuilder creates JSON object builder for the specified
// set of fixed, unique keys.
func NewFixedKeysObjectBuilder(keys []string) (*FixedKeysObjectBuilder, error) {
	sort.Strings(keys)
	pairs := make([]jsonKeyValuePair, len(keys))
	keyOrd := make(map[string]int, len(keys))

	for i, k := range keys {
		if _, exists := keyOrd[k]; exists {
			return nil, errors.AssertionFailedf("expected unique keys, found %v", keys)
		}
		pairs[i] = jsonKeyValuePair{k: jsonString(keys[i])}
		keyOrd[k] = i
	}

	return &FixedKeysObjectBuilder{
		pairs:  pairs,
		keyOrd: keyOrd,
	}, nil
}

// Set sets the value for the specified key.
// All previously configured keys must be set before calling Build.