WorldManifest.parse constructor

WorldManifest.parse(List<int> bytes)

Parse manifest file bytes (UTF-8 JSON).

Implementation

factory WorldManifest.parse(List<int> bytes) {
  final String text;
  try {
    text = utf8.decode(bytes);
  } on FormatException {
    throw const WorldManifestError(
      'world manifest is not valid UTF-8 --> fix: re-save the manifest '
      'as UTF-8 JSON.',
    );
  }
  final dynamic doc;
  try {
    doc = jsonDecode(text);
  } on FormatException catch (e) {
    throw WorldManifestError(
      'world manifest is not valid JSON (${e.message}) '
      '--> fix: repair the manifest JSON.',
    );
  }
  if (doc is! Map<String, dynamic>) {
    throw const WorldManifestError(
      'world manifest is not a JSON object --> fix: the manifest must '
      'be a JSON object at the top level.',
    );
  }
  return WorldManifest.fromDocument(doc);
}