Method parse

www/js/_hyperscript.js:9019–9043

(parser)

      this.args = { type: transitionType };
    }
    static parse(parser) {
      if (!parser.matchToken("start")) return;
      parser.matchToken("a");
      parser.requireToken("view");
      parser.requireToken("transition");
      parser.matchToken("using");
      var typeToken = parser.matchTokenType("STRING");
      var transitionType = typeToken ? typeToken.value : null;
      var body = parser.requireElement("commandList");
      var tick = new ViewTransitionTick();
      tick.next = body;
      var endCmd = new ViewTransitionEnd();
      var last = body;
      while (last.next) last = last.next;
      last.next = endCmd;
      if (parser.hasMore()) {
        parser.requireToken("end");
      }
      insertAborts(body, false);
      var cmd = new _ViewTransitionCommand(tick, transitionType);
      parser.setParent(tick, cmd);
      parser.setParent(body, cmd);
      endCmd.parent = cmd;
      return cmd;
    }
    resolve(context, { type }) {
      if (!document.startViewTransition) {
        return this.body;