Function notify

demo/js/main.js:2681–2723

(record, isReject)

  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
};
var notify = function(record, isReject){
  if(record.n)return;
  record.n = true;
  var chain = record.c;
  asap(function(){
    var value = record.v
      , ok    = record.s == 1
      , i     = 0;
    var run = function(react){
      var cb = ok ? react.ok : react.fail
        , ret, then;
      try {
        if(cb){
          if(!ok)record.h = true;
          ret = cb === true ? value : cb(value);
          if(ret === react.P){
            react.rej(TypeError('Promise-chain cycle'));
          } else if(then = isThenable(ret)){
            then.call(ret, react.res, react.rej);
          } else react.res(ret);
        } else react.rej(value);
      } catch(err){
        react.rej(err);
      }
    };
    while(chain.length > i)run(chain[i++]); // variable length - can't use forEach
    chain.length = 0;
    record.n = false;
    if(isReject)setTimeout(function(){
      var promise = record.p
        , handler, console;
      if(isUnhandled(promise)){
        if(isNode){
          process.emit('unhandledRejection', value, promise);
        } else if(handler = global.onunhandledrejection){
          handler({promise: promise, reason: value});
        } else if((console = global.console) && console.error){
          console.error('Unhandled promise rejection', value);
        }
      } record.a = undefined;
    }, 1);
  });
};
var isUnhandled = function(promise){
  var record = promise[RECORD]
    , chain  = record.a || record.c