Stack trace experiment in Chrome

gistfile1.js

// this function can get the full stack trace, however, it's usefulness is 
// somewhat limited by the fact that Chrome Dev tools can only display full
// urls that are passed as the first argument as a string. That means that 
// every log line is preceded by a massively ugly URL block that works as 
// a link but this is only mildly useful. There is no way to get the dev 
// tools to linkify shorter URLs - if that were possible, then this 
// might be a usable solution from a UI perspective

function getStack() {
  var orig = Error.prepareStackTrace;
  Error.prepareStackTrace = function (err, stack) {
    return stack;
  };
  var err = new Error;
  Error.captureStackTrace(err, arguments.callee);
  var stack = err.stack;
  Error.prepareStackTrace = orig;
  return stack.slice(4).filter(function(frame) {
    return frame.getFileName() != undefined
  });
}
var stack = getStack();
if(stack && stack[0]) {
  args.push( stack[0].getFileName() +':' + stack[0].getLineNumber() );
}