Source

String get sourceCode {
  if (_sourceCodeCache == null) {
    String contents = getFileContentsFor(element);
    var node = element.computeNode();
    if (node != null) {
      // Find the start of the line, so that we can line up all the indents.
      int i = node.offset;
      while (i > 0) {
        i -= 1;
        if (contents[i] == '\n' || contents[i] == '\r') {
          i += 1;
          break;
        }
      }

      // Trim the common indent from the source snippet.
      var start = node.offset - (node.offset - i);
      String source = contents.substring(start, node.end);

      if (config != null && config.addCrossdart) {
        source = crossdartifySource(_crossdartJson, source, element, start);
      } else {
        source = const HtmlEscape().convert(source);
      }
      source = stripIndentFromSource(source);
      source = stripDartdocCommentsFromSource(source);

      _sourceCodeCache = source.trim();
    } else {
      _sourceCodeCache = '';
    }
  }

  return _sourceCodeCache;
}