Merge pull request #1616 from h2so5/verify-string-match

verify the argument of String#=~

Merge pull request #1616 from h2so5/verify-string-match
verify the argument of String#=~
d957a678 · Yukihiro "Matz" Matsumoto · 55ef024e · e137d142 · d957a678
Commit d957a678 authored Dec 23, 2013 by Yukihiro "Matz" Matsumoto
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mrblib/string.rb mrblib/string.rb +3 -0

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--- a/mrblib/string.rb
+++ b/mrblib/string.rb
@@ -137,6 +137,9 @@ class String
  ##
  # ISO 15.2.10.5.5
  def =~(re)
+    if re.is_a? String
+      raise TypeError, "type mismatch: String given"
+    end
    re =~ self
  end