laya-coreui-es
Version:
laya核心库、ui库es版本，剔除了媒体、TTF等功能。基于 LayaAir-release_2.12.0 修改
64 lines (63 loc) • 1.93 kB
JavaScript
export class Pool {
static getPoolBySign(sign) {
return Pool._poolDic[sign] || (Pool._poolDic[sign] = []);
}
static clearBySign(sign) {
if (Pool._poolDic[sign])
Pool._poolDic[sign].length = 0;
}
static recover(sign, item) {
if (item[Pool.POOLSIGN])
return;
item[Pool.POOLSIGN] = true;
Pool.getPoolBySign(sign).push(item);
}
static recoverByClass(instance) {
if (instance) {
var className = instance["__className"] || instance.constructor._$gid;
if (className)
Pool.recover(className, instance);
}
}
static _getClassSign(cla) {
var className = cla["__className"] || cla["_$gid"];
if (!className) {
cla["_$gid"] = className = Pool._CLSID + "";
Pool._CLSID++;
}
return className;
}
static createByClass(cls) {
return Pool.getItemByClass(Pool._getClassSign(cls), cls);
}
static getItemByClass(sign, cls) {
if (!Pool._poolDic[sign])
return new cls();
var pool = Pool.getPoolBySign(sign);
if (pool.length) {
var rst = pool.pop();
rst[Pool.POOLSIGN] = false;
}
else {
rst = new cls();
}
return rst;
}
static getItemByCreateFun(sign, createFun, caller = null) {
var pool = Pool.getPoolBySign(sign);
var rst = pool.length ? pool.pop() : createFun.call(caller);
rst[Pool.POOLSIGN] = false;
return rst;
}
static getItem(sign) {
var pool = Pool.getPoolBySign(sign);
var rst = pool.length ? pool.pop() : null;
if (rst) {
rst[Pool.POOLSIGN] = false;
}
return rst;
}
}
Pool._CLSID = 0;
Pool.POOLSIGN = "__InPool";
Pool._poolDic = {};