diff options
Diffstat (limited to 'mrbgems/mruby-enum-lazy')
| -rw-r--r-- | mrbgems/mruby-enum-lazy/mrblib/lazy.rb | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mrbgems/mruby-enum-lazy/mrblib/lazy.rb b/mrbgems/mruby-enum-lazy/mrblib/lazy.rb index 8a7ac7fdc..c98681edf 100644 --- a/mrbgems/mruby-enum-lazy/mrblib/lazy.rb +++ b/mrbgems/mruby-enum-lazy/mrblib/lazy.rb @@ -43,6 +43,9 @@ class Enumerator end def to_enum(meth=:each, *args, &block) + unless self.respond_to?(meth) + raise NoMethodError, "undefined method #{meth}" + end lz = Lazy.new(self, &block) lz.obj = self lz.meth = meth |