gistfile1.rb

def foo(&block)
  puts :a
  yield
  puts :c
end

foo { puts :b } 
# >> a
# >> b
# >> c

foo { puts :b; break } 
# >> a
# >> b

foo { puts :b; next }
# >> a
# >> b
# >> c

foo { puts :b; return }
# ~>  unexpected return (LocalJumpError)

def bar(block)
  puts :a
  block.call
  puts :c
end

bar(lambda { puts :b; return })
# >> a
# >> b
# >> c


bar(lambda { puts :b; next })
# >> a
# >> b
# >> c

bar(lambda { puts :b; break })
# >> a
# >> b
# >> c