From: westlin9@...
Date: 2007-07-20T20:19:58+09:00
Subject: block_given? problem

I can't figure out why the do...end block isn't detected by the
"block_given?" function. The problem occurs when a method call with a
block is used in a puts statement. See the code example below.
Can some one explain this to me please? Is this a bug?


class TheClass
  def self.TheMethod()
    if block_given?
      puts "yes, block given"
    else
      puts "no block is given"
    end
    'return val'
  end
end

# ok
puts TheClass.TheMethod {|param| 123}

# block not detected
puts TheClass.TheMethod do |param|
  123
end

# ok
a = TheClass.TheMethod {|param| 123}
puts a

# ok
a = TheClass.TheMethod do |param|
  123
end
puts a