catch asynchronous exceptions in node without losing the stack history

wrapExceptions.coffee

getCalledStack = (fun) ->
  prevErr = new Error "memoized stack frame"
  (args...) -> try fun args... catch err then throw [prevErr].concat err

memoizedFn = -> throw new Error "i'm an exception!"

beginStack = ->
  memo = getCalledStack memoizedFn
  # creating new stack frame
  process.nextTick ->
    try memo() catch errs # getCalledStack throws array of Errors
      console.error e.stack for e in errs
    null

# on process.nextTick, catches exception and displays both the stack at when the
# function was called, and the stack at when it was memoized
# this can be done an arbitrary number of times
beginStack()

### output:
Error: memoized stack frame
  at getCalledStack (wrapExceptions.coffee:4:17)
  at beginStack (wrapExceptions.coffee:10:10)
  at Object.<anonymous> (wrapExceptions.coffee:20:1)
  at Object.<anonymous> (wrapExceptions.coffee:3:1)
  at Module._compile (module.js:434:26)
  at Object.exports.run (/usr/lib/node_modules/coffee-script/lib/coffee-script/coffee-script.js:134:23)
  at compileScript (/usr/lib/node_modules/coffee-script/lib/coffee-script/command.js:224:29)
  at compilePath (/usr/lib/node_modules/coffee-script/lib/coffee-script/command.js:174:14)
  at Object.exports.run (/usr/lib/node_modules/coffee-script/lib/coffee-script/command.js:98:20)
  at Object.<anonymous> (/usr/lib/node_modules/coffee-script/bin/coffee:7:41)
  at Module._compile (module.js:434:26)
  at Object.Module._extensions..js (module.js:452:10)
  at Module.load (module.js:355:32)
  at Function.Module._load (module.js:310:12)
  at Function.Module.runMain (module.js:475:10)
  at startup (node.js:117:18)
  at node.js:951:3

Error: i'm an exception!
  at memoizedFn (wrapExceptions.coffee:7:27)
  at wrapExceptions.coffee:5:20
  at wrapExceptions.coffee:13:9
  at doNTCallback0 (node.js:407:9)
  at process._tickCallback (node.js:336:13)
  at Function.Module.runMain (module.js:477:11)
  at startup (node.js:117:18)
  at node.js:951:3
###