Hi,

Ilmari Heikkinen wrote:
> Tried out librend on YARV, and what tests I managed to get running were
> very promising (30-50% avg FPS speedup!)

Fantastic!


> 1. found when compiling rubysdl, mkmf.rb contains code like:
> 
> for d,*f in [[1,2,3]]
> ...
> 
> kig@bauhaus:~$ ruby1.8 -e 'for d,*f in [[1,2,3]]; p d,f; end'
> 1
> [2, 3]
> 
> kig@bauhaus:~$ ruby1.9 -e 'for d,*f in [[1,2,3]]; p d,f; end'
> [1, 2, 3]
> nil
> 
Maybe I fixed it.
Please teach your YARV's revision.

> 
> 2. had some incompletely arg'd blocks in my code and ran into:
> 
> kig@bauhaus:~$ ruby1.8 -e '[[1,2,3]].map{|a,b| p [a,b]}'
> [1, 2]
> 
> kig@bauhaus:~$ ruby1.9 -e '[[1,2,3]].map{|a,b| p [a,b]}'
> [2, 3]

ditto
> 
> 3. define_method has bug with splat args
> 
> kig@bauhaus:~$ ruby1.8 -e 'class Object; define_method(:foo){|*args| 
> p args}; end; 0.foo(1,2,3)'
> [1, 2, 3]
> 
> kig@bauhaus:~$ ruby1.9 -e 'class Object; define_method(:foo){|*args| 
> p args}; end; 0.foo(1,2,3)'
> -e:1:in `<main>': wrong number of arguments (3 for 0) (ArgumentError)

ditto.


> 4. method_missing and blocks
> 
> kig@bauhaus:~$ ruby1.8 -e 'def method_missing(m,&b) b end; p f{}'
> #<Proc:0x00000000@-e:1>
> 
> kig@bauhaus:~$ ruby1.9 -e 'def method_missing(m,&b) b end; p f{}'
> nil
> 
ditto

> x. YARV GC runs take longer than Ruby1.8 GC runs (not really a bug) 
>   (ruby1.8 GC run: 45fps -> 17fps, YARV GC run: 60fps -> 10fps)

It's a valuable information.

Thanks,
-- 
// SASADA Koichi at atdot dot net


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