Merge pull request #38 from kateinoigakukun/katei/wasi-compat

Stop using `IO::NULL` for feature detection

Author: hsbt

lib/tempfile.rb

@@ -593,9 +593,7 @@ class << Tempfile
   end
 end
 
-File.open(IO::NULL) do |f|
-  File.new(f.fileno, autoclose: false, path: "").path
-rescue IOError
+if RUBY_VERSION < "3.2"
   module PathAttr               # :nodoc:
     attr_reader :path