Fiddle::Closure::BlockCaller

class Fiddle::Closure::BlockCaller

Parent:Fiddle::Closure

扩展Fiddle :: Closure，以允许在一个块中构建闭包

公共类方法

new(ctype, args, abi = Fiddle::Function::DEFAULT, &block) Show source

描述

构建一个新的BlockCaller对象。

• ctype 是要返回的C类型

• args 已通过回调

• abi 是关闭的abi

如果在准备ffi_cif或ffi_prep_closure时出错，则会引发RuntimeError。

例

include Fiddle

cb = Closure::BlockCaller.new(TYPE_INT, [TYPE_INT]) do |one|
  one
end

func = Function.new(cb, [TYPE_INT], TYPE_INT)

调用超类方法Fiddle :: Closure.new

# File ext/fiddle/lib/fiddle/closure.rb, line 34
def initialize ctype, args, abi = Fiddle::Function::DEFAULT, &block
  super(ctype, args, abi)
  @block = block
end

公共实例方法

call(*args) Show source

用args调用构造的BlockCaller

例如see :: new

# File ext/fiddle/lib/fiddle/closure.rb, line 43
def call *args
  @block.call(*args)
end