$ coffee -bce '[i for i in a]'
// Generated by CoffeeScript 1.3.3
var i;
[
(function() {
var _i, _len, _results;
_results = [];
for (_i = 0, _len = a.length; _i < _len; _i++) {
i = a[_i];
_results.push(i);
}
return _results;
})()
];

$ coco -bce '[i for i of a]'
var i;
[(function(){
  var __i, __ref, __len, __results = [];
  for (__i = 0, __len = (__ref = a).length; __i < __len; ++__i) {
    i = __ref[__i];
    __results.push(i);
  }
  return __results;
}())];

$ coffee -bce 'a > b() > c; d > e() > f'
// Generated by CoffeeScript 1.3.3
var _ref, _ref1;
(a > (_ref = b()) && _ref > c);
(d > (_ref1 = e()) && _ref1 > f);

$ coco -bce 'a > b() > c; d > e() > f'
var __ref;
a > (__ref = b()) && __ref > c;
d > (__ref = e()) && __ref > f;

$ coffee -bce 'r = for k of o then arguments'
// Generated by CoffeeScript 1.3.3
var k, r;
r = (function() {
var _results;
_results = [];
for (k in o) {
_results.push(arguments);
}
return _results;
}).apply(this, arguments);

$ coco -bce 'r = for k in o then arguments'
var k, r, __res, __i, __ref, __len;
__res = [];
for (__i = 0, __len = (__ref = o).length; __i < __len; ++__i) {
  k = __ref[__i];
  __res.push(arguments);
}
r = __res;

$ coffee -bce '{@foo}'
// Generated by CoffeeScript 1.3.3
({
foo: this.foo
});
$ coffee -bce '{this.foo}'
Error: Parse error on line 1: Unexpected 'THIS'
...

$ coco -bce '{@foo}; {this.foo}'
({
  foo: this.foo
});
({
  foo: this.foo
});

$ coco -bce 'f k: v, a + b'
f({
  k: v
}, a + b);
$ coco -bce 'k: f a, ->'
({
k: f(a, function(){})
});

$ coco -bcs
  f do
    k: v
    a
f({
k: v
}, a);
$ coco -bcs
f do
a
k: v
f(a, {
k: v
});

$ coco -bcs
  if a then b
       else c
if (a) {
b;
} else {
c;
}