E

• 展開

I

• 反向 lambda

M

• 建立 lambda

N

• 新增

類別公開方法

# File activesupport/lib/active_support/callbacks.rb, line 438
def initialize(block)
  @override_block = block
end

實例公開方法

# File activesupport/lib/active_support/callbacks.rb, line 442
def expand(target, value, block)
  [target, @override_block, :instance_exec]
end

# File activesupport/lib/active_support/callbacks.rb, line 452
def inverted_lambda
  lambda do |target, value, &block|
    !target.instance_exec(&@override_block)
  end
end

# File activesupport/lib/active_support/callbacks.rb, line 446
def make_lambda
  lambda do |target, value, &block|
    target.instance_exec(&@override_block)
  end
end