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require '-test-/iseq_load/iseq_load'
require 'tempfile'
class RubyVM::InstructionSequence
def disasm_if_possible
begin
self.disasm
rescue Encoding::CompatibilityError, EncodingError, SecurityError
nil
end
end
def self.compare_dump_and_load i1, dumper, loader
dump = dumper.call(i1)
return i1 unless dump
i2 = loader.call(dump)
# compare disassembled result
d1 = i1.disasm_if_possible
d2 = i2.disasm_if_possible
if d1 != d2
p i1
return
STDERR.puts "expected:"
STDERR.puts d1
STDERR.puts "actual:"
STDERR.puts d2
t1 = Tempfile.new("expected"); t1.puts d1; t1.close
t2 = Tempfile.new("actual"); t2.puts d2; t2.close
system("diff -u #{t1.path} #{t2.path}") # use diff if available
exit(1)
end
i2
end
def self.translate i1
# check to_a/load_iseq
i2 = compare_dump_and_load(i1,
proc{|iseq|
ary = iseq.to_a
ary[9] == :top ? ary : nil
},
proc{|ary|
RubyVM::InstructionSequence.iseq_load(ary)
})
# return value
i1
end
end
#require_relative 'x'; exit(1)
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