Function parsePattern

scripts/libs/esprima.js:2300–2309

()

    }

    function parsePattern() {
        if (lookahead.type === Token.Identifier) {
            return parseVariableIdentifier();
        } else if (match('[')) {
            return parseArrayPattern();
        } else if (match('{')) {
            return parseObjectPattern();
        }
        throwUnexpectedToken(lookahead);
    }

    function parsePatternWithDefault() {
        var pattern, right;