diff options
| -rw-r--r-- | mrbgems/mruby-hash-ext/mrblib/hash.rb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mrbgems/mruby-hash-ext/mrblib/hash.rb b/mrbgems/mruby-hash-ext/mrblib/hash.rb index 3e1bac0a2..3fb83abba 100644 --- a/mrbgems/mruby-hash-ext/mrblib/hash.rb +++ b/mrbgems/mruby-hash-ext/mrblib/hash.rb @@ -1,5 +1,6 @@ class Hash def merge!(other, &block) + raise "can't convert argument into Hash" unless other.respond_to?(:to_hash) if block other.each_key{|k| self[k] = (self.has_key?(k))? block.call(k, self[k], other[k]): other[k] |