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- fiddle/lib/fiddle/closure.rb
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- Fiddle::Closure::BlockCaller
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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)
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Description¶ ↑
Construct a new BlockCaller object.
-
ctypeis the C type to be returned -
argsare passed the callback -
abiis 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 fiddle/lib/fiddle/closure.rb, line 34
def initialize ctype, args, abi = Fiddle::Function::DEFAULT, &block
super(ctype, args, abi)
@block = block
end
Public Instance Methods
call(*args)
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Calls the constructed BlockCaller, with
args
For an example see ::new
# File fiddle/lib/fiddle/closure.rb, line 43
def call *args
@block.call(*args)
end