Map toJson()

in lib/parser.dart [435:489]
46 lines of code
10 McCabe index (conditional complexity)

  Map toJson({bool includeSourceContents = false}) {
    var buff = StringBuffer();
    var line = 0;
    var column = 0;
    var srcLine = 0;
    var srcColumn = 0;
    var srcUrlId = 0;
    var srcNameId = 0;
    var first = true;

    for (var entry in lines) {
      var nextLine = entry.line;
      if (nextLine > line) {
        for (var i = line; i < nextLine; ++i) {
          buff.write(';');
        }
        line = nextLine;
        column = 0;
        first = true;
      }

      for (var segment in entry.entries) {
        if (!first) buff.write(',');
        first = false;
        column = _append(buff, column, segment.column);

        // Encoding can be just the column offset if there is no source
        // information.
        var newUrlId = segment.sourceUrlId;
        if (newUrlId == null) continue;
        srcUrlId = _append(buff, srcUrlId, newUrlId);
        srcLine = _append(buff, srcLine, segment.sourceLine!);
        srcColumn = _append(buff, srcColumn, segment.sourceColumn!);

        if (segment.sourceNameId == null) continue;
        srcNameId = _append(buff, srcNameId, segment.sourceNameId!);
      }
    }

    var result = {
      'version': 3,
      'sourceRoot': sourceRoot ?? '',
      'sources': urls,
      'names': names,
      'mappings': buff.toString()
    };
    if (targetUrl != null) result['file'] = targetUrl!;

    if (includeSourceContents) {
      result['sourcesContent'] = files.map((file) => file?.getText(0)).toList();
    }
    extensions.forEach((name, value) => result[name] = value);

    return result;
  }