Function functionparams

ServerEditorWeb/ace/worker-javascript.js:4784–4852

(fatarrow)

  }

  function functionparams(fatarrow) {
    var next;
    var params = [];
    var ident;
    var tokens = [];
    var t;
    var pastDefault = false;
    var loneArg = fatarrow && fatarrow.loneArg;

    if (loneArg && loneArg.identifier === true) {
      addlabel(loneArg.value, { type: "unused", token: loneArg });
      return [loneArg];
    }

    next = state.tokens.next;

    if (!fatarrow || !fatarrow.parsedParen) {
      advance("(");
    }

    if (state.tokens.next.id === ")") {
      advance(")");
      return;
    }

    for (;;) {
      if (_.contains(["{", "["], state.tokens.next.id)) {
        tokens = destructuringExpression();
        for (t in tokens) {
          t = tokens[t];
          if (t.id) {
            params.push(t.id);
            addlabel(t.id, { type: "unused", token: t.token });
          }
        }
      } else if (state.tokens.next.value === "...") {
        if (!state.option.esnext) {
          warning("W119", state.tokens.next, "spread/rest operator");
        }
        advance("...");
        ident = identifier(true);
        params.push(ident);
        addlabel(ident, { type: "unused", token: state.tokens.curr });
      } else {
        ident = identifier(true);
        params.push(ident);
        addlabel(ident, { type: "unused", token: state.tokens.curr });
      }
      if (pastDefault) {
        if (state.tokens.next.id !== "=") {
          error("E051", state.tokens.current);
        }
      }
      if (state.tokens.next.id === "=") {
        if (!state.option.inESNext()) {
          warning("W119", state.tokens.next, "default parameters");
        }
        advance("=");