module RSpec::Core::Hooks

def after(*args, &block) 

def after(*args, &block)
  scope, options = scope_and_options_from(*args)
  hooks[:after][scope] << AfterHook.new(options, &block)
end

def around(*args, &block) 

def around(*args, &block)
  scope, options = scope_and_options_from(*args)
  hooks[:around][scope] << AroundHook.new(options, &block)
end

def before(*args, &block) 

def before(*args, &block)
  scope, options = scope_and_options_from(*args)
  hooks[:before][scope] << BeforeHook.new(options, &block)
end

def find_hook(hook, scope, example_group_class) 

def find_hook(hook, scope, example_group_class)
  hooks[hook][scope].find_hooks_for(example_group_class)
end

def hooks 

def hooks
  @hooks ||= {
    :around => { :each => AroundHooks.new },
    :before => { :each => BeforeHooks.new, :all => BeforeHooks.new, :suite => BeforeHooks.new },
    :after => { :each => AfterHooks.new, :all => AfterHooks.new, :suite => AfterHooks.new }
  }
end

def run_hook(hook, scope, example_group_instance=nil)

example. If no example is provided, just calls the hook directly.
Runs all of the blocks stored with the hook in the context of the 
def run_hook(hook, scope, example_group_instance=nil)
  hooks[hook][scope].run_all(example_group_instance)
end

def run_hook!(hook, scope, example_group_instance)

ensuring that they will only be run once.
Just like run_hook, except it removes the blocks as it evalutes them, 
def run_hook!(hook, scope, example_group_instance)
  hooks[hook][scope].run_all!(example_group_instance)
end

def run_hook_filtered(hook, scope, group, example_group_instance) 

def run_hook_filtered(hook, scope, group, example_group_instance)
  find_hook(hook, scope, group).run_all(example_group_instance)
end

def scope_and_options_from(scope=:each, options={}) 

def scope_and_options_from(scope=:each, options={})
  if Hash === scope
    options = scope
    scope = :each
  end
  return scope, options
end