601662 - Optimize away return array object when function returning an array has it immediately assigned to destructuring assignment

Status: NEW

(Core :: JavaScript Engine, enhancement, P3)

Description

[Boris Zbarsky [:bzbarsky]]

I'm looking at things like:

  function f() { return [1, 2]; }
  var [a, b] = f();

Comment 1

[Chris Leary [:cdleary] (not checking bugmail)]

Note bug 601072 comment 17.

Comment 2

[Brendan Eich [:brendan]]

(Thanks for the citation, cdleary!)

/be