SFML/bindings/ruby/sfml-system/system/NonCopyable.cpp
2010-12-03 16:16:50 +00:00

66 lines
2.4 KiB
C++

/* rbSFML - Copyright (c) 2010 Henrik Valter Vogelius Hansson - groogy@groogy.se
* This software is provided 'as-is', without any express or
* implied warranty. In no event will the authors be held
* liable for any damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute
* it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented;
* you must not claim that you wrote the original software.
* If you use this software in a product, an acknowledgment
* in the product documentation would be appreciated but
* is not required.
*
* 2. Altered source versions must be plainly marked as such,
* and must not be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any
* source distribution.
*/
#include "NonCopyable.hpp"
#include "main.hpp"
VALUE globalNonCopyableModule;
/* call-seq:
* non_copyable.clone( source ) -> copy
* non_copyable.dup( source ) -> copy
*
* Override the copy methods so that we can't copy these instances..
*/
static VALUE NonCopyable_InitializeCopy( VALUE self, VALUE aSource)
{
rb_raise( rb_eRuntimeError, "The object you tried to copy is NonCopyable" );
return self;
}
void Init_NonCopyable( void )
{
/* SFML namespace which contains the classes of this module. */
VALUE sfml = rb_define_module( "SFML" );
/* Utility mixin-module that makes any derived class non-copyable.
* This module makes its instances non-copyable, by explicitely disabling its initialize_copy method.
*
* To create a non-copyable class, simply include the SFML::NonCopyable module.
*
* Usage example:
*
* class MyNonCopyableClass
* include SFML::NonCopyable
* ...
* end
* Deciding whether the instances of a class can be copied or not is a very important design choice. You are strongly
* encouraged to think about it before writing a class, and to use SFML::NonCopyable when necessary to prevent many
* potential future errors when using it. This is also a very important indication to users of your class.
*/
globalNonCopyableModule = rb_define_module_under( sfml, "NonCopyable" );
// Instance methods
rb_define_method( globalNonCopyableModule, "initialize_copy", NonCopyable_InitializeCopy, 1 );
}