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Bug #18569 ยป disasm.rb

Script to reproduce the problem - GabrielMalakias (Gabriel Malaquias), 02/03/2022 10:39 AM

 
puts "Ruby version: #{RUBY_VERSION}"

first_proc = proc { |x| x + 2 }
second_proc = proc { |x| x + 3 }

# works
puts first_proc.class
puts "proc { |x| x + 2 }"
puts RubyVM::InstructionSequence.disasm(first_proc)
puts "-------------------------------------"

# works
puts second_proc.class
puts "proc { |x| x + 3 }"
puts RubyVM::InstructionSequence.disasm(second_proc)
puts "-------------------------------------"

composed_function = first_proc >> second_proc
# unexpected result
puts composed_function.class
puts "proc { |x| x + 2 } >> proc { |x| x + 3 } returns nil??"
puts RubyVM::InstructionSequence.disasm(composed_function)

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