class Opal::Nodes::KwargNode


def m(kw: )
single required keyword argument
A node responsible for extracting a

def compile 

def compile
  initialize_kw_args_if_needed
  kwarg_name = @sexp[1].to_sym
  var_name = variable(kwarg_name)
  add_temp var_name
  line "if (!$kwargs.$$smap.hasOwnProperty('#{kwarg_name}')) {"
  line "  throw Opal.ArgumentError.$new('missing keyword: #{kwarg_name}');"
  line "}"
  line "#{var_name} = $kwargs.$$smap['#{kwarg_name}'];"
  scope.used_kwargs << kwarg_name
end