AdWords Script error log with stacktrace for your distant eval'd scripts.

StackedError.js

/** 
Depends on StackFrame and ErrorStackParser ( https://github.com/stacktracejs/stacktrace.js )

This custom Error function will bring a nice stacktrace to your logs. 
It can also notify by email when not in preview mode ( optional ) 

As this works with eval'd scripts, you can just package 
the dependencies plus your script and use this generic piece in every script: 

-- USAGE IN YOUR SCRIPT --
function main() {
  var src = UrlFetchApp.fetch("http://domain.com/script.js?"+(new Date/1E3|0)).getContentText();
  try {
    eval(src);
  } catch (e) {
    throw new StackedError(e, src, [email protected]);
  }
}


*/
function StackedError(e, src, notifyEmail) {
    var lines = src.split("\n");
    var getLine = function (number) {
        return ':' + number + " >> " + lines[number].trim().substr(0, 150);
    };
    var accountId = AdWordsApp.currentAccount().getCustomerId();
    var stringifiedStack = ErrorStackParser.parse(e).map(function (sf) {
        // This padding seems to work out for me. Double check it though
        var padding = 1;
        var lineNumber = sf.lineNumber - padding;

        return (sf.functionName ? sf.functionName + sf.fileName : sf.fileName) +
            (lines[lineNumber] ? getLine(lineNumber) : '')
    }).join('\n');

    if (!AdWordsApp.getExecutionInfo().isPreview() && notifyEmail) {
        MailApp.sendEmail(
            notifyEmail,
            accountId + ' AdWords Script ' + e.message,
            e.message+"\n"+stringifiedStack,
            {noReply: true}
        );
        Logger.log("Debug : Email sent to " + recipient);
    }

    this.message = e.message;
    this.name = e.name;

    Logger.log(stringifiedStack);
}

StackedError.prototype = Object.create(Error.prototype);
StackedError.prototype.constructor = StackedError;