class Object

Constants

Enumerator

Public Instance Methods

ancestors() click to toggle source
# File lib/sup/util.rb, line 200
def ancestors
  ret = []
  klass = self.class

  until klass == Object
    ret << klass
    klass = klass.superclass
  end
  ret
end
benchmark(s, &b) click to toggle source
# File lib/sup/util.rb, line 258
def benchmark s, &b
  ret = nil
  times = Benchmark.measure { ret = b.call }
  debug "benchmark #{s}: #{times}"
  ret
end
id() click to toggle source

this is for debugging purposes because i keep calling id on the wrong object and i want it to throw an exception

# File lib/sup.rb, line 23
def id
  raise "wrong id called on #{self.inspect}"
end
ignore_concurrent_calls(*methods) click to toggle source
# File lib/sup/util.rb, line 232
def ignore_concurrent_calls *methods
  methods.each do |meth|
    mutex = "@__concurrent_protector_#{meth}"
    flag = "@__concurrent_flag_#{meth}"
    oldmeth = "__unprotected_#{meth}"
    class_eval <<-EOF
      alias #{oldmeth} #{meth}
      def #{meth}(*a, &b)
        #{mutex} = Mutex.new unless defined? #{mutex}
        #{flag} = true unless defined? #{flag}
        run = #{mutex}.synchronize do
          if #{flag}
            #{flag} = false
            true
          end
        end
        if run
          ret = #{oldmeth}(*a, &b)
          #{mutex}.synchronize { #{flag} = true }
          ret
        end
      end
    EOF
  end
end
returning(x;) { |x;| ... } click to toggle source

“k combinator”

# File lib/sup/util.rb, line 212
def returning x; yield x; x; end
synchronized(*methods) click to toggle source

clone of java-style whole-method synchronization assumes a @mutex variable TODO: clean up, try harder to avoid namespace collisions

# File lib/sup/util.rb, line 221
def synchronized *methods
  methods.each do |meth|
    class_eval <<-EOF
      alias unsynchronized_#{meth} #{meth}
      def #{meth}(*a, &b)
        @mutex.synchronize { unsynchronized_#{meth}(*a, &b) }
      end
    EOF
  end
end
tap() { |self;| ... } click to toggle source
# File lib/sup/util.rb, line 215
def tap; yield self; self; end