Function expr_list

lib/parse-js.js:1127–1140

(closing, allow_trailing_comma, allow_empty)

    });

    function expr_list(closing, allow_trailing_comma, allow_empty) {
        var first = true, a = [];
        while (!is("punc", closing)) {
            if (first) first = false; else expect(",");
            if (allow_trailing_comma && is("punc", closing)) break;
            if (is("punc", ",") && allow_empty) {
                a.push([ "atom", "undefined" ]);
            } else {
                a.push(expression(false));
            }
        }
        next();
        return a;
    };

    function array_() {
        return as("array", expr_list("]", !exigent_mode, true));