void expect()

in lib/src/string_scanner.dart [143:157]

• 14 lines of code
• 4 McCabe index (conditional complexity)

  void expect(Pattern pattern, {String? name}) {
    if (scan(pattern)) return;

    if (name == null) {
      if (pattern is RegExp) {
        final source = pattern.pattern;
        name = '/$source/';
      } else {
        name =
            pattern.toString().replaceAll('\\', '\\\\').replaceAll('"', '\\"');
        name = '"$name"';
      }
    }
    _fail(name);
  }