try-catch.js

var ffi = require('node-ffi')
  , objc = new ffi.Library('libobjc', {
      objc_msgSend: [ 'pointer', [ 'pointer', 'pointer', ] ]
    , objc_getClass: [ 'pointer', [ 'string' ] ]
    , sel_registerName: [ 'pointer', [ 'string' ] ]
    // try/catch
    , objc_begin_catch: [ 'pointer', [ 'pointer' ] ]
    , objc_end_catch: [ 'void', [] ]
  })
  , NSObject = objc.objc_getClass('NSObject')
  , badSelector = objc.sel_registerName('nonexistantMethod')

// Set up an @try/@catch
var exc_buf = new ffi.Pointer(1024 * 8) // WTF is this for?
  , rtn = objc.objc_begin_catch(exc_buf)
console.error(exc_buf)
console.error(rtn) // returning NULL

// Invoke an exception
objc.objc_msgSend(NSObject, badSelector)

objc.objc_end_catch()
console.error('Did we get to here?')

var exc_buf = new ffi.Pointer(1024 * 8) // WTF is this for?

ever figure it out?