From 68735d12614ef72b620736a5cd3052fb79445483 Mon Sep 17 00:00:00 2001 From: KOBAYASHI Shuji Date: Tue, 8 Jan 2019 20:31:29 +0900 Subject: Fix dump/load float leteral evaluate to infinity Example: # example.rb p(2e308) p(-2e308) Good: $ bin/mruby example.rb inf -inf Bad: $ bin/mrbc example.rb $ bin/mruby -b example.mrb 0 -0 Cause: Float infinity representation is `inf` on dump and it is converted by corresponding `String#to_f` on load. Treatment: - Introduce new representations (`i`: +infinity, `I`: -infinity) - Allow old representations (`inf`, `-inf`, `infinity`, `-infinity`) too - Raise error for unknown representations (use corresponding `Kernel#Float`) --- mrbgems/mruby-bin-mruby/bintest/mruby.rb | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'mrbgems/mruby-bin-mruby') diff --git a/mrbgems/mruby-bin-mruby/bintest/mruby.rb b/mrbgems/mruby-bin-mruby/bintest/mruby.rb index a7fb63fa2..f3c7d8761 100644 --- a/mrbgems/mruby-bin-mruby/bintest/mruby.rb +++ b/mrbgems/mruby-bin-mruby/bintest/mruby.rb @@ -31,6 +31,13 @@ assert '$0 value' do assert_equal '"-e"', `#{cmd('mruby')} -e #{shellquote('p $0')}`.chomp end +assert('float literal') do + script, bin = Tempfile.new('test.rb'), Tempfile.new('test.mrb') + File.write script.path, 'p [3.21, 2e308.infinite?, -2e308.infinite?]' + system "#{cmd('mrbc')} -g -o #{bin.path} #{script.path}" + assert_equal "[3.21, 1, -1]", `#{cmd('mruby')} -b #{bin.path}`.chomp! +end + assert '__END__', '8.6' do script = Tempfile.new('test.rb') -- cgit v1.2.3