Hi Laurent,

I just tried running it under 0.5 and am still getting an error. I've narrowed the code down to the following:

###

 class A
   def initialize
     puts 'initialize'
   end

   def self.init
     define_method(:initialize) do |*params|
       super()
     end
   end
 end

 class B < A
   init
 end

 # Calling B.new without an argument, however, works.
 B.new nil

###

HTH,
Ed

On Oct 8, 2009, at 12:21 AM, Laurent Sansonetti wrote:

We fixed a few 32-bit issues in trunk so you may want to give it a try one more time.

At least we are not maintaining 0.4 anymore, so it would be great if you could try your code with trunk and let us know if the bug is still there. Then we can try to reduce it and fix it :)

Laurent

On Oct 7, 2009, at 9:16 PM, Edward Hynes wrote:

I'm still on a 32-bit machine, so can't try 0.5 yet :^(

I did manage to find a workaround, however, by creating an alias for the 'initialize' method and then calling it instead of 'super' inside of the 'define_method' call.

Ed

On Oct 7, 2009, at 10:51 PM, Matt Aimonetti wrote:

you might want to try your luck with 0.5

- Matt

On Wed, Oct 7, 2009 at 7:37 PM, Edward Hynes <m...@dharmagaia.com> wrote:
Hi,

I'm attempting to use the RParsec gem under MacRuby, but am getting a NoMethodError when it loads. I've create a test file that simply adds my local gem directory to the front of the library search path and then calls "require 'rparsec'". This file runs fine under Ruby 1.9, but produces the following error when called from MacRuby 0.4.

/Users/ehynes/Test/Gems/rparsec/parser.rb:32:in `block in init': super: no superclass method `initialize:' for RParsec::ValueParser:RParsec::ValueParser (NoMethodError)
      from /Users/ehynes/Test/Gems/rparsec/parsers.rb:621:in `new'
from /Users/ehynes/Test/Gems/rparsec/parsers.rb:621:in `<module:RParsec>' from /Users/ehynes/Test/Gems/rparsec/parsers.rb:3:in `<top (required)>'
      from /Users/ehynes/Test/Gems/rparsec.rb:3:in `require'
from /Users/ehynes/Test/Gems/rparsec.rb:3:in `block in <top (required)>'
      from /Users/ehynes/Test/Gems/rparsec.rb:2:in `each'
from /Users/ehynes/Test/Gems/rparsec.rb:2:in `<top (required) >'
      from AbcParser.rb:2:in `require'
      from AbcParser.rb:2:in `<main>'


The method with the error in the Parser class is:

def self.init(*vars)
  parser_checker = {}
  vars.each_with_index do |var, i|
    name = var.to_s
parser_checker[i] = var if name.include?('parser') && ! name.include?('parsers')
  end
  define_method(:initialize) do |*params|
--->  super()   # <--- line 32
    vars.each_with_index do |var, i|
      param = params[i]
      if parser_checker.include? i
        TypeChecker.check_arg_type Parser, param, self, i
      end
      instance_variable_set("@"+var.to_s, param)
    end
  end
end


Any ideas as to why Ruby can call super in the above method, but MacRuby can't? Is there a fix or workaround that I could use? An alternate parser?

Thanks,
Ed


P.S. I did have to change one line in the RParsec parser.rb file to get it to run under Ruby 1.9, replacing a ':' with a 'then' in a case statement.

      $ diff parser_original.rb parser.rb
      881c881
      <     case c when String: c[0] else c end
      ---
> case c when String then c[0] else c end # ':' replaced with 'then'



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--
Edward Hynes
Dharma Gaia LLC
"Software with the Earth in Mind"
http://dharmagaia.com



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MacRuby-devel mailing list
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http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel

_______________________________________________
MacRuby-devel mailing list
MacRuby-devel@lists.macosforge.org
http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel

--
Edward Hynes
Dharma Gaia LLC
"Software with the Earth in Mind"
http://dharmagaia.com



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