[macruby-changes] [MacRuby/MacRuby] ecc13e: fix a bug in respond_to_key which cannot generate ...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/MacRuby/MacRuby
  Commit: ecc13e2c2c01c2554cce3b00809c082f73d498d9
      https://github.com/MacRuby/MacRuby/commit/ecc13e2c2c01c2554cce3b00809c082f73d498d9
  Author: Watson <watson1978 at gmail.com>
  Date:   2013-03-10 (Sun, 10 Mar 2013)

  Changed paths:
    M vm.h

  Log Message:
  -----------
  fix a bug in respond_to_key which cannot generate a unique key for different klass and sel

The same key is generated in the following two cases.

1. klass = 0xfd085b0
    sel = 0xfd3cf90
    (0xfd085b0 + 0xfd3cf90  -> 0x1FA45540)

2. klass = 0xfd085d0
    sel = 0xfd3cf70
    (0xfd085d0 + 0xfd3cf70 -> 0x1FA45540)

  => generated key = 1068693925

Object#respond_to? is not working as expected, because the keys that are not unique.