function step()

in zeppelin-web-angular/src/assets/helium-packages/helium-vis-example.umd.js [170:231]

• 62 lines of code
• 32 McCabe index (conditional complexity)

    function step(op) {
      if (f) throw new TypeError('Generator is already executing.');
      while (_)
        try {
          if (
            ((f = 1),
            y &&
              (t = op[0] & 2 ? y['return'] : op[0] ? y['throw'] || ((t = y['return']) && t.call(y), 0) : y.next) &&
              !(t = t.call(y, op[1])).done)
          )
            return t;
          if (((y = 0), t)) op = [op[0] & 2, t.value];
          switch (op[0]) {
            case 0:
            case 1:
              t = op;
              break;
            case 4:
              _.label++;
              return { value: op[1], done: false };
            case 5:
              _.label++;
              y = op[1];
              op = [0];
              continue;
            case 7:
              op = _.ops.pop();
              _.trys.pop();
              continue;
            default:
              if (!((t = _.trys), (t = t.length > 0 && t[t.length - 1])) && (op[0] === 6 || op[0] === 2)) {
                _ = 0;
                continue;
              }
              if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) {
                _.label = op[1];
                break;
              }
              if (op[0] === 6 && _.label < t[1]) {
                _.label = t[1];
                t = op;
                break;
              }
              if (t && _.label < t[2]) {
                _.label = t[2];
                _.ops.push(op);
                break;
              }
              if (t[2]) _.ops.pop();
              _.trys.pop();
              continue;
          }
          op = body.call(thisArg, _);
        } catch (e) {
          op = [6, e];
          y = 0;
        } finally {
          f = t = 0;
        }
      if (op[0] & 5) throw op[1];
      return { value: op[0] ? op[1] : void 0, done: true };
    }