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instance method

ObjectSpace#dump

ObjectSpace.dump(obj[, output: :string]) # => "{ ... }"

ObjectSpace.dump(obj, output: :file) # => #<File:/tmp/rubyobj20131125-88733-1xkfmpv.json>

ObjectSpace.dump(obj, output: :stdout) # => nil

ext/objspace/lib/objspace.rb View on GitHub ↗

# File tmp/rubies/ruby-3.0.5/ext/objspace/lib/objspace.rb, line 24
def dump(obj, output: :string)
  out = case output
  when :file, nil
    require 'tempfile'
    Tempfile.create(%w(rubyobj .json))
  when :stdout
    STDOUT
  when :string
    +''
  when IO
    output
  else
    raise ArgumentError, "wrong output option: #{output.inspect}"
  end

  ret = _dump(obj, out)
  return nil if output == :stdout
  ret
end

Dump the contents of a ruby object as JSON.

This method is only expected to work with C Ruby. This is an experimental method and is subject to change. In particular, the function signature and output format are not guaranteed to be compatible in future versions of ruby.

See also .undefine_finalizer #dump_all .trace_object_allocations_stop #garbage_collect also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1

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