error.js

export default function (module, ErrorConstructor) {
    ErrorConstructor = ErrorConstructor || Error;

    return function () {
        var code = arguments[0],
            prefix = '[' + (module ? module + ':' : '') + code + '] ',
            template = arguments[1],
            templateArgs = arguments,
            stringify = function (obj) {
                if (typeof obj === 'function') {
                    return obj.toString().replace(/ \{[\s\S]*$/, '');
                } else if (typeof obj === 'undefined') {
                    return 'undefined';
                } else if (typeof obj !== 'string') {
                    return JSON.stringify(obj);
                }
                return obj;
            },
            message, i;

        message = prefix + template.replace(/\{\d+\}/g, function (match) {
            var index = +match.slice(1, -1), arg;

            if (index + 2 < templateArgs.length) {
                arg = templateArgs[index + 2];
                if (typeof arg === 'function') {
                    return arg.toString().replace(/ ?\{[\s\S]*$/, '');
                } else if (typeof arg === 'undefined') {
                    return 'undefined';
                } else if (typeof arg !== 'string') {
                    return JSON.stringify(arg);
                }
                return arg;
            }
            return match;
        });

        return new ErrorConstructor(message);
    };
}