From cb636215bb98cb152ef6371f8bedb8929f7efa23 Mon Sep 17 00:00:00 2001 From: "Yukihiro \"Matz\" Matsumoto" Date: Fri, 16 Oct 2020 18:30:52 +0900 Subject: Raise exception from `Range#first` with beginless ranges. --- mrbgems/mruby-range-ext/mrblib/range.rb | 1 + 1 file changed, 1 insertion(+) (limited to 'mrbgems/mruby-range-ext') 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 -- cgit v1.2.3