Project generator for Eclipse CDT bug #512297

cdt-stackoverflow-project-generator.rb

# This is a project generator script for the Eclipse CDT bug 512297.
# For details, see: https://bugs.eclipse.org/bugs/show_bug.cgi?id=512297
# Note: You need Ruby 2.3 or above.

# This script is distributed under public domain.

require 'fileutils'

ROOT_PATH = "cdt-stackoverflow"
LIB_PATH = "#{ROOT_PATH}/sample-library"
PARSER_KILLER_1_APP_PATH = "#{ROOT_PATH}/parser-killer-1-application"
PARSER_KILLER_2_APP_PATH = "#{ROOT_PATH}/parser-killer-2-application"
PARSER_KILLER_3_APP_PATH = "#{ROOT_PATH}/parser-killer-3-application"
AST_BUILDER_KILLER_1_APP_PATH = "#{ROOT_PATH}/ast-builder-killer-1-application"

FileUtils.mkdir_p ROOT_PATH
FileUtils.mkdir_p LIB_PATH
FileUtils.mkdir_p PARSER_KILLER_1_APP_PATH
FileUtils.mkdir_p PARSER_KILLER_2_APP_PATH
FileUtils.mkdir_p PARSER_KILLER_3_APP_PATH
FileUtils.mkdir_p AST_BUILDER_KILLER_1_APP_PATH

File.open("#{LIB_PATH}/any.hpp", 'w') {|f|
  f.puts <<~EOS
    template<class T>
    struct any {};
  EOS
}

PARSER_KILLER_1_THRESHOLD = 400
File.open("#{PARSER_KILLER_1_APP_PATH}/main.cpp", 'w') {|f|
  f.puts <<~EOS
    #include "../sample-library/any.hpp"
  EOS

  f.print 'typedef '

  PARSER_KILLER_1_THRESHOLD.times do
    f.print 'any<'
  end

  f.print 'int'

  PARSER_KILLER_1_THRESHOLD.times do
    f.print '>'
  end

  f.puts ' parser_killer_type;'

  f.puts <<~EOS
    int main()
    {
      parser_killer_type parser_killer_1;
    }
  EOS
}

File.open("#{LIB_PATH}/infinite.hpp", 'w') {|f|
  f.puts <<~EOS
    template<class... Ts>
    struct infinite;

    template<class Infinite, int N>
    struct infinite_generator
    {
      typedef infinite<typename infinite_generator<Infinite, N-1>::type> type;
    };

    template<class Infinite>
    struct infinite_generator<Infinite, 0>
    {
      typedef Infinite type;
    };

    template<class... Ts>
    struct infinite
    {
      typedef infinite<Ts...> self_type;

      template<class T>
      infinite<self_type, T> operator|(T) const
      {
        return {};
      }

      template<int N>
      static typename infinite_generator<self_type, N>::type generate()
      {
        return typename infinite_generator<self_type, N>::type();
      }
    };
  EOS
}

PARSER_KILLER_2_THRESHOLD = 400
File.open("#{PARSER_KILLER_2_APP_PATH}/main.cpp", 'w') {|f|
  f.puts <<~EOS
    #include "../sample-library/infinite.hpp"
  EOS

  f.puts <<~EOS
    int main()
    {
      typedef infinite<int> expr;

  EOS

  f.puts "  auto parser_killer_2 = expr::generate<#{PARSER_KILLER_2_THRESHOLD}>();"

  f.puts <<~EOS
    }
  EOS
}

PARSER_KILLER_3_THRESHOLD = 400
File.open("#{PARSER_KILLER_3_APP_PATH}/main.cpp", 'w') {|f|
  f.puts <<~EOS
    #include "../sample-library/infinite.hpp"
    int main()
    {
      typedef infinite<int> generator;

      auto factor_0 = generator();
  EOS

  (1..PARSER_KILLER_3_THRESHOLD).each do |i|
    f.print "  auto factor_#{i} = factor_#{i-1} | generator();\n"
  end

  f.puts <<~EOS
    }
  EOS
}

AST_BUILDER_KILLER_1_THRESHOLD = 1000
File.open("#{AST_BUILDER_KILLER_1_APP_PATH}/main.cpp", 'w') {|f|
  f.puts <<~EOS
    #include "../sample-library/infinite.hpp"
  EOS

  f.puts <<~EOS
    int main()
    {
      typedef infinite<int> expr;

  EOS

  f.print '  auto ast_builder_killer_1 = expr()'
  AST_BUILDER_KILLER_1_THRESHOLD.times do
    f.print ' | expr()'
  end

  f.puts ';'

  f.puts <<~EOS
    }
  EOS
}