Fiddle::Closure::BlockCaller

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)

 
               # File ruby-3.1.2/ext/fiddle/lib/fiddle/closure.rb, line 35
def initialize ctype, args, abi = Fiddle::Function::DEFAULT, &block
  super(ctype, args, abi)
  @block = block
end
            

Calls the constructed BlockCaller, with args

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

 
               # File ruby-3.1.2/ext/fiddle/lib/fiddle/closure.rb, line 44
def call *args
  @block.call(*args)
end