Function argument

tests/webidl/WebIDLParser.js:265–309

(store)

    };

    var argument = function(store) {
      var ret = { optional: false, variadic: false };
      ret.extAttrs = extended_attrs(store);
      all_ws(store, "pea");
      var opt_token = consume(ID, "optional");
      if (opt_token) {
        ret.optional = true;
        all_ws();
      }
      ret.idlType = type_with_extended_attributes();
      if (!ret.idlType) {
        if (opt_token) tokens.unshift(opt_token);
        return;
      }
      var type_token = last_token;
      if (!ret.optional) {
        all_ws();
        if (tokens.length >= 3 &&
          tokens[0].type === "other" && tokens[0].value === "." &&
          tokens[1].type === "other" && tokens[1].value === "." &&
          tokens[2].type === "other" && tokens[2].value === "."
        ) {
          tokens.shift();
          tokens.shift();
          tokens.shift();
          ret.variadic = true;
        }
      }
      all_ws();
      var name = consume(ID);
      if (!name) {
        if (opt_token) tokens.unshift(opt_token);
        tokens.unshift(type_token);
        return;
      }
      ret.name = name.value;
      if (ret.optional) {
        all_ws();
        var dflt = default_();
        if (typeof dflt !== "undefined") {
          ret["default"] = dflt;
        }
      }
      return ret;
    };

    var argument_list = function(store) {
      var ret = [],