# File activesupport/lib/active_support/core_ext/name_error.rb, line 3
def missing_name
  if /undefined local variable or method/ !~ message
    $1 if /((::)?([A-Z]\w*)(::[A-Z]\w*)*)$/ =~ message
  end
end

# File activesupport/lib/active_support/core_ext/name_error.rb, line 10
def missing_name?(name)
  if name.is_a? Symbol
    last_name = (missing_name || '').split('::').last
    last_name == name.to_s
  else
    missing_name == name.to_s
  end
end