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Bug #3143 ยป easy_seg_fault.rb

Ruby file showing the bug - danielribeiro (Daniel Ribeiro), 04/14/2010 12:01 AM

 
#!/usr/bin/env ruby
class Module
public :include
end

class Object
def metaclass
class << self; self; end
end
end

class A
def hi(*args, &block)
puts "from A: the args are #{args} and the block is #{block}"

'just hi'
end
end


module ExtensionModule
def self.create
return Module.new.extend(self)
end


def create_blockcall
## Commenting the following two lines the seg fault turn into `new': stack level too deep
regex = /#<Module\:0x(\w+)/
uniquename = regex.match(to_s)[1]
##

return "blockcall_#{object_id}"
end

def define_inline_block(name, &blk)
blockcallmethod = create_blockcall
define_method(blockcallmethod, &blk)
evalstr =<<modeval
def #{name}(*args, &block)
#{blockcallmethod} *args, &block
super
end
modeval
self.module_eval evalstr, "meta_#{__method__}" + __FILE__, __LINE__
return self
end
end

class Class
alias oldnew new

def new
return oldnew unless @names
ret = oldnew
for m in @names
ret.extend(m)
end
return ret
end

def pre_with_block(name, &block)
@names ||= []
@names << ExtensionModule.create.define_inline_block(name, &block)
end

end



class A

pre_with_block :hi do |*args|
puts "invoked by a block with args = '#{args}'"
end
end


puts 'ok'
    (1-1/1)