Function unexpectedTokenError

scripts/libs/esprima.js:2087–2111

(token, message)

    // Throw an exception because of the token.

    function unexpectedTokenError(token, message) {
        var msg = message || Messages.UnexpectedToken;

        if (token && !message) {
            msg = (token.type === Token.EOF) ? Messages.UnexpectedEOS :
                (token.type === Token.Identifier) ? Messages.UnexpectedIdentifier :
                (token.type === Token.NumericLiteral) ? Messages.UnexpectedNumber :
                (token.type === Token.StringLiteral) ? Messages.UnexpectedString :
                Messages.UnexpectedToken;

            if (token.type === Token.Keyword) {
                if (isFutureReservedWord(token.value)) {
                    msg = Messages.UnexpectedReserved;
                } else if (strict && isStrictModeReservedWord(token.value)) {
                    msg = Messages.StrictReservedWord;
                }
            }
        }

        msg = msg.replace('%0', token ? token.value : 'ILLEGAL');

        return (token && typeof token.lineNumber === 'number') ?
            createError(token.lineNumber, token.start, msg) :
            createError(scanning ? lineNumber : lastLineNumber, scanning ? index : lastIndex, msg);
    }

    function throwUnexpectedToken(token, message) {
        throw unexpectedTokenError(token, message);