Class: Object

Inherits:
BasicObject
Defined in:
lib/call-me/named.rb,
lib/call-me/memoize.rb

Instance Method Summary collapse

Instance Method Details

#is_memoized?(name) ⇒ Boolean 



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# File 'lib/call-me/memoize.rb', line 32

def is_memoized? (name)
  respond_to? "__memoize_#{name}"
end

#memoize(name = nil) ⇒ Object

Memoize the method name.



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# File 'lib/call-me/memoize.rb', line 37

def memoize (name = nil)
  return if @__to_memoize__ = !name

  to_call = "__memoize_#{name}"

  begin; if instance_method(name).arity == 0
    refine_method name, :prefix => '__memoize' do
      (memoize_cache[name][nil] ||= [__send__(to_call)])[0]
    end

    return
  end; rescue; end

  refine_method name, :prefix => '__memoize' do |*args|
    if tmp = memoize_cache[name][args]
      tmp
    else
      memoize_cache[name][__memoize_try_to_clone__(args)] = [__send__(*([to_call] + args))]
    end[0]
  end

  nil
end

#memoize_cache ⇒ Object

Get the memoization cache



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# File 'lib/call-me/memoize.rb', line 96

def memoize_cache
  @__memoize_cache__ ||= Hash.new { |h, k| h[k] = {} }
end

#memoize_clear(name = nil) ⇒ Object

Clear the memoize cache completely or only for the method name



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# File 'lib/call-me/memoize.rb', line 87

def memoize_clear (name = nil)
  if name
    memoize_cache.delete(name.to_sym)
  else
    memoize_cache.clear
  end
end

#named(*args) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/call-me/named.rb', line 183

def named (*args)
  raise ArgumentError, 'you have to pass at least one argument' if args.length == 0

  if args.first.nil?
    if @__named_last_method__
      names, options = Named.definition(instance_method(@__named_last_method__))

      named(Named.new(@__named_last_method__), *(names + [options]))
    end; true
  elsif !args.first.is_a?(Named)
    @__to_namedify__ = args
  end and return

  @__to_namedify__ = false

  method, names, options = Named.normalize(*args)

  instance_method(method).tap {|m|
    raise ArgumentError, 'method arity mismatch' if m.arity > 0 && m.arity != names.length
  }

  to_call = "__named_#{method}"

  refine_method method, :prefix => '__named' do |*args, &block|
    __send__ *([to_call] + Named.arguments(names, options, *args)), &block
  end

  nil
end

#singleton_memoize(name = nil) ⇒ Object

Memoize the singleton method name.



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# File 'lib/call-me/memoize.rb', line 62

def singleton_memoize (name = nil)
  return if @__to_singleton_memoize__ = !name

  to_call = "__memoize_#{name}"

  begin; if method(name).arity == 0
    refine_singleton_method name, :prefix => '__memoize' do
      (memoize_cache[name][nil] ||= [__send__(to_call)])[0]
    end

    return
  end; rescue; end

  refine_singleton_method name, :prefix => '__memoize' do |*args, &block|
    if tmp = memoize_cache[name][args]
      tmp
    else
      memoize_cache[name][__memoize_try_to_clone__(args)] = [__send__(*([to_call] + args))]
    end[0]
  end

  nil
end

#singleton_named(*args) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/call-me/named.rb', line 213

def singleton_named (*args)
  raise ArgumentError, 'you have to pass at least one argument' if args.length == 0

  if args.first.nil?
    if @__singleton_named_last_method__
      names, options = Named.definition(method(@__singleton_named_last_method__))

      singleton_named(Named.new(@__singleton_named_last_method__), *(names + [options]))
    end; true
  elsif !args.first.is_a?(Named)
    @__to_singleton_namedify__ = args
  end and return

  @__to_singleton_namedify__ = false

  method, names, options = Named.normalize(*args)

  method(method).tap {|m|
    raise ArgumentError, 'method arity mismatch' if m.arity > 0 && m.arity != names.length
  }

  to_call = "__named_#{method}"

  refine_singleton_method method, :prefix => '__named' do |*args, &block|
    __send__ *([to_call] + Named.arguments(names, options, *args)), &block
  end

  nil
end