Module: DataMapper::Property::DirtyMinder::Hooker

Defined in:
lib/dm-types/support/dirty_minder.rb

Constant Summary collapse

MUTATION_METHODS = 
{
  ::Array => %w{
    []= push << shift pop insert unshift delete
    delete_at replace fill clear
    slice! reverse! rotate! compact! flatten! uniq!
    collect! map! sort! sort_by! reject! delete_if!
    select! shuffle!
  }.select { |meth| ::Array.instance_methods.any? { |m| m.to_s == meth } },

  ::Hash => %w{
    []= store delete delete_if replace update
    delete rehash shift clear
    merge! reject! select!
  }.select { |meth| ::Hash.instance_methods.any? { |m| m.to_s == meth } },
}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(instance) ⇒ Object 



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# File 'lib/dm-types/support/dirty_minder.rb', line 96

def self.extended(instance)
  # FIXME: DirtyMinder is currently unsupported on RBX, because unlike
  # the other supported Rubies, RBX core class (e.g. Array, Hash)
  # methods use #send().  In other words, the other Rubies don't use
  # #send() (they map directly to their C functions).
  #
  # The current methodology takes advantage of this by using #send() to
  # forward method invocations we've hooked.  Supporting RBX will
  # require finding another way, possibly for all Rubies.  In the
  # meantime, something is better than nothing.
  return if defined?(RUBY_ENGINE) and RUBY_ENGINE == 'rbx'

  return unless type = MUTATION_METHODS.keys.find { |k| instance.kind_of?(k) }
  instance.extend const_get("#{type}Hooks")
end

Instance Method Details

#track(resource, property) ⇒ Object 



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# File 'lib/dm-types/support/dirty_minder.rb', line 143

def track(resource, property)
  @resource, @property = resource, property
end