Module: FFI::Library

Included in:
Win32::Certstore::Mixin::Crypto
Defined in:
lib/win32/certstore/mixin/crypto.rb

Overview

Attempts to use FFI’s attach_function method to link a native Win32 function into the calling module. If this fails a dummy method is defined which when called, raises a helpful exception to the end-user.

Instance Method Summary collapse

Instance Method Details

#safe_attach_function(win32_func, *args) ⇒ Object 



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# File 'lib/win32/certstore/mixin/crypto.rb', line 34

def safe_attach_function(win32_func, *args)
  attach_function(win32_func.to_sym, *args)
rescue FFI::NotFoundError
  define_method(win32_func.to_sym) do |*margs|
    raise NotImplementedError, "This version of Windows does not implement the Win32 function [#{win32_func}]."
  end
end