mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
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72 lines
2.6 KiB
Haxe
72 lines
2.6 KiB
Haxe
/******************************************************************************
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* Spine Runtimes License Agreement
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* Last updated July 28, 2023. Replaces all prior versions.
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*
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* Copyright (c) 2013-2023, Esoteric Software LLC
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*
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* Integration of the Spine Runtimes into software or otherwise creating
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* derivative works of the Spine Runtimes is permitted under the terms and
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* conditions of Section 2 of the Spine Editor License Agreement:
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* http://esotericsoftware.com/spine-editor-license
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*
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* Otherwise, it is permitted to integrate the Spine Runtimes into software or
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* otherwise create derivative works of the Spine Runtimes (collectively,
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* "Products"), provided that each user of the Products must obtain their own
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* Spine Editor license and redistribution of the Products in any form must
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* include this license and copyright notice.
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*
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* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
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* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THE
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* SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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package spine;
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#if flash
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typedef Function = Dynamic;
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#else
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typedef Function = haxe.Constraints.Function;
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#end
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@:generic class Pool<T> {
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private var items:Array<T>;
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private var instantiator:Function;
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public function new(instantiator:Void->T) {
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this.items = new Array<T>();
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this.instantiator = instantiator;
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}
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/**
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* This pool keeps a reference to the obtained instance, so it should be returned to the pool via Pool.free(),
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* Pool.freeAll() or clear() to avoid leaking memory.
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* @return The obtained instance from the pool or a new instance if the pool is empty.
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*/
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public function obtain():T {
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return this.items.length > 0 ? this.items.pop() : this.instantiator();
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}
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public function free(item:T):Void {
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if (Std.isOfType(item, Poolable))
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cast(item, Poolable).reset();
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items.push(item);
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}
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public function freeAll(items:Array<T>):Void {
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for (item in items) {
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free(item);
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}
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}
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public function clear():Void {
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items.resize(0);
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}
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}
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