Incorrect marshal handling of links & floats

[segiddins]

Running the following:

a = [0.0]
a << a << 0.0 << a

dumped = Marshal.dump a
pp dumped
loaded = Marshal.load dumped
pp loaded

pp Marshal.load "\x04\b[\tf\x060@\x00@\x06@\x00"

Gives different results on truffleruby vs mri & jruby

[mri        ] ~/Development/github.com/segiddins/chrb/chrb 3.3.6 -v './Untitled 6.rb' started at 2024-12-16 14:30:29.955
[mri        ] ruby 3.3.6 (2024-11-05 revision 75015d4c1f) [arm64-darwin24]
[mri        ] "\x04\b[\tf\x060@\x00@\x06@\x00"
[mri        ] [0.0, [...], 0.0, [...]]
[mri        ] [0.0, [...], 0.0, [...]]
[mri        ] ~/Development/github.com/segiddins/chrb/chrb 3.3.6 -v './Untitled 6.rb' stopped at 2024-12-16 14:30:30.043 after 88ms
[mri        ] ~/Development/github.com/segiddins/chrb/chrb 3.3.6 -v './Untitled 6.rb' exited with code 0
[truffleruby] ~/Development/github.com/segiddins/chrb/chrb truffleruby-24 -v './Untitled 6.rb' started at 2024-12-16 14:30:29.956
[truffleruby] truffleruby 24.0.2, like ruby 3.2.2, Oracle GraalVM Native [aarch64-darwin]
[truffleruby] [ruby] WARNING gem paths: /Users/segiddins/.gem/ruby/3.3.6, /Users/segiddins/.rubies/ruby-3.3.6/lib/ruby/gems/3.3.0 are not marked as installed by TruffleRuby. They might belong to another Ruby implementation and break unexpectedly. Configure your Ruby manager to use TruffleRuby, or `unset GEM_HOME GEM_PATH`. See https://github.com/oracle/truffleruby/blob/master/doc/user/ruby-managers.md
[truffleruby] "\x04\b[\tf\x060@\x00f\x060@\x00"
[truffleruby] [0.0, [...], 0.0, [...]]
[truffleruby] <internal:core> core/marshal.rb:690:in `construct': dump format error (unlinked) (ArgumentError)
[truffleruby] 	from <internal:core> core/marshal.rb:783:in `block in construct_array'
[truffleruby] 	from <internal:core> core/integer.rb:149:in `times'
[truffleruby] 	from <internal:core> core/marshal.rb:782:in `construct_array'
[truffleruby] 	from <internal:core> core/marshal.rb:668:in `construct'
[truffleruby] 	from <internal:core> core/marshal.rb:1484:in `load'
[truffleruby] 	from ./Untitled 6.rb:23:in `<main>'
[truffleruby] <internal:core> core/array.rb:418:in `fetch': index 1 out of bounds (IndexError)
[truffleruby] 	from <internal:core> core/marshal.rb:687:in `construct'
[truffleruby] 	from <internal:core> core/marshal.rb:783:in `block in construct_array'
[truffleruby] 	from <internal:core> core/integer.rb:149:in `times'
[truffleruby] 	from <internal:core> core/marshal.rb:782:in `construct_array'
[truffleruby] 	from <internal:core> core/marshal.rb:668:in `construct'
[truffleruby] 	from <internal:core> core/marshal.rb:1484:in `load'
[truffleruby] 	from ./Untitled 6.rb:23:in `<main>'
[truffleruby] ~/Development/github.com/segiddins/chrb/chrb truffleruby-24 -v './Untitled 6.rb' stopped at 2024-12-16 14:30:30.549 after 593ms
[truffleruby] ~/Development/github.com/segiddins/chrb/chrb truffleruby-24 -v './Untitled 6.rb' exited with code 1
[jruby      ] ~/Development/github.com/segiddins/chrb/chrb jruby-9 -v './Untitled 6.rb' started at 2024-12-16 14:30:29.957
[jruby      ] jruby 9.4.3.0 (3.1.4) 2023-06-07 3086960792 OpenJDK 64-Bit Server VM 19.0.1+10-21 on 19.0.1+10-21 +jit [arm64-darwin]
[jruby      ] "\x04\b[\tf\x060@\x00f\x060@\x00"
[jruby      ] [0.0, [...], 0.0, [...]]
[jruby      ] [0.0, [...], 0.0, [...]]
[jruby      ] ~/Development/github.com/segiddins/chrb/chrb jruby-9 -v './Untitled 6.rb' stopped at 2024-12-16 14:30:32.459 after 2,502ms
[jruby      ] ~/Development/github.com/segiddins/chrb/chrb jruby-9 -v './Untitled 6.rb' exited with code 0

[andrykonchin]

Thank you for the report, we'll look into it.