playcanvas/build/playcanvas/src/core/ref-counted-key-cache.js

Open-source WebGL/WebGPU 3D engine for the web

import { RefCountedObject } from "./ref-counted-object.js";
class Entry extends RefCountedObject {
	object;
	constructor(obj) {
		super();
		this.object = obj;
		this.incRefCount();
	}
}
class RefCountedKeyCache {
	cache = /* @__PURE__ */ new Map();
	destroy() {
		this.cache.forEach((entry) => {
			entry.object?.destroy();
		});
		this.cache.clear();
	}
	clear() {
		this.cache.clear();
	}
	get(key) {
		const entry = this.cache.get(key);
		if (entry) {
			entry.incRefCount();
			return entry.object;
		}
		return null;
	}
	set(key, object) {
		this.cache.set(key, new Entry(object));
	}
	release(key) {
		const entry = this.cache.get(key);
		if (entry) {
			entry.decRefCount();
			if (entry.refCount === 0) {
				this.cache.delete(key);
				entry.object?.destroy();
			}
		} else {
		}
	}
}
export {
	RefCountedKeyCache
};