HaxeFoundation.haxe/std/cpp/vm/WeakRef.hx

/*
 * Copyright (C)2005-2019 Haxe Foundation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

package cpp.vm;

class WeakRef<T> {
	var ref:Dynamic;
	var hardRef:Bool;

	public function new(inObject:T, inHard:Bool = false) {
		hardRef = inHard;
		if (hardRef)
			ref = inObject;
		else
			ref = untyped __global__.__hxcpp_weak_ref_create(inObject);
	}

	public function get():T {
		if (hardRef)
			return ref;

		return untyped __global__.__hxcpp_weak_ref_get(ref);
	}

	public function set(inObject:T):T {
		if (hardRef)
			ref = inObject;
		else
			ref = untyped __global__.__hxcpp_weak_ref_create(inObject);
		return inObject;
	}

	public function toString():String {
		return "WeakRef(" + get() + ")";
	}
}