Frame.parseV8 constructor

Implementation

factory Frame.parseV8(String frame) => _catchFormatException(frame, () {
      var match = _v8Frame.firstMatch(frame);
      if (match == null) return new UnparsedFrame(frame);

      // v8 location strings can be arbitrarily-nested, since it adds a layer of
      // nesting for each eval performed on that line.
      parseLocation(location, member) {
        var evalMatch = _v8EvalLocation.firstMatch(location);
        while (evalMatch != null) {
          location = evalMatch[1];
          evalMatch = _v8EvalLocation.firstMatch(location);
        }

        if (location == 'native') {
          return new Frame(Uri.parse('native'), null, null, member);
        }

        var urlMatch = _v8UrlLocation.firstMatch(location);
        if (urlMatch == null) return new UnparsedFrame(frame);

        return new Frame(_uriOrPathToUri(urlMatch[1]), int.parse(urlMatch[2]),
            int.parse(urlMatch[3]), member);
      }

      // V8 stack frames can be in two forms.
      if (match[2] != null) {
        // The first form looks like " at FUNCTION (LOCATION)". V8 proper lists
        // anonymous functions within eval as "<anonymous>", while IE10 lists them
        // as "Anonymous function".
        return parseLocation(
            match[2],
            match[1]
                .replaceAll("<anonymous>", "<fn>")
                .replaceAll("Anonymous function", "<fn>")
                .replaceAll("(anonymous function)", "<fn>"));
      } else {
        // The second form looks like " at LOCATION", and is used for anonymous
        // functions.
        return parseLocation(match[3], "<fn>");
      }
    });