diff options
| author | Yukihiro "Matz" Matsumoto <[email protected]> | 2017-08-11 09:21:09 +0900 |
|---|---|---|
| committer | Yukihiro "Matz" Matsumoto <[email protected]> | 2017-08-11 09:21:09 +0900 |
| commit | 68470bef862f14501ff0d8a3a6ac78ea38ab383b (patch) | |
| tree | 216172b019479f1374a0c8516dfc3155d7962604 /mrbgems/mruby-enum-lazy | |
| parent | ac42ccc1fcde9297a5a6c927f633e0a2750f114f (diff) | |
| download | mruby-68470bef862f14501ff0d8a3a6ac78ea38ab383b.tar.gz mruby-68470bef862f14501ff0d8a3a6ac78ea38ab383b.zip | |
Check method existence in `to_enum'; ref #3773
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 |