John Lam wrote:
> I'd really like to be able to inject the 'include Bob' statement in
> the create method of Bob:
> 
> module Bob
>   def method_missing(name, *params)
>     puts "missing: #{name}"
>   end
>   def self.create(name)
>     yield if block_given?
>     puts name
>   end
> end
> 
> Bob::create('hi') do
>   include Bob
>   ldstr
>   ldc_i4_0
> end
> 
> Is there a way that I can avoid include Bob in my block?

module Bob
  def method_missing(name, *params)
    puts "missing: #{name}"
  end
  def self.create(name,&b)
    obj = Object.new
    obj.extend Bob
    obj.instance_eval(&b)
    puts name
  end
end

Bob::create('hi') do
  ldstr
  ldc_i4_0
end

irb(main):001:0> module Bob
irb(main):002:1>   def method_missing(name, *params)
irb(main):003:2>     puts "missing: #{name}"
irb(main):004:2>   end
irb(main):005:1>   def self.create(name,&b)
irb(main):006:2>     obj = Object.new
irb(main):007:2>     obj.extend Bob
irb(main):008:2>     obj.instance_eval(&b)
irb(main):009:2>     puts name
irb(main):010:2>   end
irb(main):011:1> end
=> nil
irb(main):012:0>
irb(main):013:0* Bob::create('hi') do
irb(main):014:1*   ldstr
irb(main):015:1>   ldc_i4_0
irb(main):016:1> end
missing: ldstr
missing: ldc_i4_0
hi
=> nil

Kind regards

    robert