= !MacRuby Brainstorming =

For 0.2.

 * Hash re-implemented on top of CFDictionary. 
   * Hash will be an alias to NSMutableDictionary. 
   * When NSDictionary is subclassed from Ruby, !MacRuby will automatically insert the primitive methods into the new class.
   * The primitive methods change the isa back to NSCFDictionary, then call the Ruby implementation via YARV.

 * Array re-implemented on top of CFArray. RARRAY_PTR is not supported anymore (but RARRAY_AT(ary, index) is new).

 * String re-implemented on top of CFString. Still require investigation.

 * Symbols will be exposed using the fake string that is currently used in parse.y.

 * Float and Bignum based on CFNumber.

 * Fixnums will be represented as CFNumbers when converted as an ObjC object, and stored in an unique cache.

 * Qnil, Qtrue and Qfalse automatically converted to NULL and NSCFBoolean.