crbug/777775

replace.rb

Dir.glob('third_party/WebKit/**/*.cpp').each do |f|
  next if File.basename(f) == "TaskRunnerHelper.cpp"
  next if File.basename(f) == "WorkerThread.cpp"
  next if File.basename(f) == "AnimationWorkletGlobalScopeTest.cpp"

  # Special                                                                                                                                                                                                                                                                                                                                                                
  #next if File.basename(f) == "WorkletGlobalScope.cpp"                                                                                                                                                                                                                                                                                                                    
  #next if File.basename(f) == "WorkerGlobalScope.cpp"                                                                                                                                                                                                                                                                                                                     

  r = File.read(f)
  worker = false
  r2 = r.gsub(/TaskRunnerHelper::Get\((.+?),\s+(.+?)\)(,|;|\s)/m) do
    replaced = ""
    arg = $1
    recv = $2
    suffix = $3

    if recv.start_with?('GetWorkerThread') || recv.start_with?('thread') || recv.start_with?('worker_thread') || recv.start_with?('GetThread')
      worker = true
      next Regexp.last_match(0)
    end

    kakko = ''
    while recv[-1] == ')' && !recv.end_with?('()')
      kakko += recv[-1]
      recv = recv[0..-2]
    end

    if recv != 'this'
      recv += ')' if recv[-1] == '('
      if recv[0] == "&"
        replaced += recv[1..-1] + '.'
      elsif recv.end_with?('Get()') || recv.end_with?('get()')
        replaced += recv[0..-7] + "->"
      else
        replaced += recv + '->'
      end
    end
    if arg[-1] == ')'
      puts arg
    end
    replaced += 'GetTaskRunner(' + arg + ')' + kakko + suffix
    replaced
  end

  if r != r2 && !worker
    r2.gsub!('#include "core/dom/TaskRunnerHelper.h"' + "\n", '#include "public/platform/TaskType.h"' + "\n")
  end

  File.open(f, "w") do |file|
    file.write(r2)
  end
end