class Fiddle::Closure::BlockCaller - Documentation for Ruby 3.4
Description: class Fiddle::Closure::BlockCaller: Extends Fiddle::Closure to allow for building the closure in a block
Keywords: ruby,class,Fiddle::Closure::BlockCaller

# class Fiddle::Closure::BlockCaller

Extends `Fiddle::Closure` to allow for building the closure in a block

### Public Class Methods

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

    # File ext/fiddle/lib/fiddle/closure.rb, line 60
    def initialize ctype, args, abi = Fiddle::Function::DEFAULT, &block
      super(ctype, args, abi)
      @block = block
    end

## Description¶ ↑

Construct a new `BlockCaller` object.

- `ctype` is the C type to be returned

- `args` are passed the callback

- `abi` is the abi of the closure

If there is an error in preparing the `ffi_cif` or `ffi_prep_closure`, then a `RuntimeError` will be raised.

## Example¶ ↑

    include Fiddle

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

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

Calls superclass method `Fiddle::Closure::new`

### Public Instance Methods

call (*args)
Source

    # File ext/fiddle/lib/fiddle/closure.rb, line 69
    def call *args
      @block.call(*args)
    end

Calls the constructed `BlockCaller`, with `args`

For an example see `Fiddle::Closure::BlockCaller.new`