Yielding in an anonymous block

Question

I\'m not making sense of the following behavior (see also in this SO thread):

def def_test
  puts \'def_test.in\'
  yield if block_given?
  puts \'def_test.o         


        

Answer 1

block_given? considers def scope, not lambda scope:

def test
  l = lambda do
    yield if block_given?
  end
  l.call
end

test { puts "In block" }