Issue #7306 has been updated by naruse (Yui NARUSE).

Status changed from Assigned to Rejected

JSON can't express infinity.
Confirm inf.to_json is "Infinity", it should be unexpected result.
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Bug #7306: BigDecimal does not properly marshal to JSON and back
https://bugs.ruby-lang.org/issues/7306#change-32683

Author: vbatts (Vincent Batts)
Status: Rejected
Priority: Normal
Assignee: naruse (Yui NARUSE)
Category: ext
Target version: 
ruby -v: ruby 2.0.0dev (2012-11-06 trunk 37483) [x86_64-linux]


$ ruby -v -S irb -r bigdecimal -r json
ruby 2.0.0dev (2012-11-06 trunk 37483) [x86_64-linux]
/opt/ruby/2.0.0-git4e73323a6/lib/ruby/2.0.0/irb/ext/save-history.rb:29: warning: method redefined; discarding old save_history=
/opt/ruby/2.0.0-git4e73323a6/lib/ruby/2.0.0/irb/extend-command.rb:211: warning: previous definition of save_history= was here
irb(main):001:0> inf = BigDecimal.new('Infinity')
=> #<BigDecimal:2880908,'Infinity',9(9)>
irb(main):002:0> inf2 = JSON.load(inf.to_json)
=> "Infinity"
irb(main):003:0> inf3 = JSON.parse(inf.to_json)
JSON::ParserError: 757: unexpected token at '"Infinity"'
        from /opt/ruby/2.0.0-git4e73323a6/lib/ruby/2.0.0/json/common.rb:149:in `parse'
        from /opt/ruby/2.0.0-git4e73323a6/lib/ruby/2.0.0/json/common.rb:149:in `parse'
        from (irb):3
        from /opt/ruby/2.0.0-git4e73323a6/bin/irb:12:in `<main>'
irb(main):004:0> JSON.dump inf
=> "\"Infinity\""
irb(main):005:0> JSON.load(JSON.dump(inf))
=> "Infinity"



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