fromJson static method

ValidationError? fromJson(dynamic value)

Returns a new ValidationError instance and imports its values from value if it's a Map, null otherwise.

Implementation

// ignore: prefer_constructors_over_static_methods
static ValidationError? fromJson(dynamic value) {
  if (value is Map) {
    final json = value.cast<String, dynamic>();

    // Ensure that the map contains the required keys.
    // Note 1: the values aren't checked for validity beyond being non-null.
    // Note 2: this code is stripped in release mode!
    assert(() {
      assert(json.containsKey(r'loc'),
          'Required key "ValidationError[loc]" is missing from JSON.');
      assert(json[r'loc'] != null,
          'Required key "ValidationError[loc]" has a null value in JSON.');
      assert(json.containsKey(r'msg'),
          'Required key "ValidationError[msg]" is missing from JSON.');
      assert(json[r'msg'] != null,
          'Required key "ValidationError[msg]" has a null value in JSON.');
      assert(json.containsKey(r'type'),
          'Required key "ValidationError[type]" is missing from JSON.');
      assert(json[r'type'] != null,
          'Required key "ValidationError[type]" has a null value in JSON.');
      return true;
    }());

    return ValidationError(
      loc: LocationInner.listFromJson(json[r'loc']),
      msg: mapValueOfType<String>(json, r'msg')!,
      type: mapValueOfType<String>(json, r'type')!,
      input: mapValueOfType<Object>(json, r'input'),
      ctx: mapValueOfType<Object>(json, r'ctx'),
    );
  }
  return null;
}