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# $Id$
def main
if ARGV[0] == '-a'
with_arity = true
ARGV.delete_at 0
else
with_arity = false
end
extract_ids(ARGF).each do |id, arity|
if with_arity
puts "#{id} #{arity}"
else
puts id
end
end
end
def extract_ids(f)
ids = {}
f.each do |line|
next if /\A\#\s*define\s+s?dispatch/ =~ line
next if /ripper_dispatch/ =~ line
if a = line.scan(/dispatch(\d)\((\w+)/)
a.each do |arity, event|
if ids[event]
unless ids[event] == arity.to_i
$stderr.puts "arity mismatch: #{event} (#{ids[event]} vs #{arity})"
exit 1
end
end
ids[event] = arity.to_i
end
end
end
ids.to_a.sort
end
main
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