diff options
| -rw-r--r-- | mrbgems/mruby-range-ext/mrblib/range.rb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mrbgems/mruby-range-ext/mrblib/range.rb b/mrbgems/mruby-range-ext/mrblib/range.rb index 5eeb802c1..7327127f5 100644 --- a/mrbgems/mruby-range-ext/mrblib/range.rb +++ b/mrbgems/mruby-range-ext/mrblib/range.rb @@ -11,6 +11,7 @@ class Range # (10..20).first(3) #=> [10, 11, 12] # def first(*args) + raise RangeError, "cannot get the first element of beginless range" if self.begin.nil? return self.begin if args.empty? raise ArgumentError, "wrong number of arguments (given #{args.length}, expected 1)" unless args.length == 1 |