53 lines
1.7 KiB
TypeScript
53 lines
1.7 KiB
TypeScript
class SnowFlake<x>{
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public readonly id:string;
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private static readonly SnowFlakes:Map<any,Map<string,WeakRef<SnowFlake<any>>>>=new Map();
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private static readonly FinalizationRegistry=new FinalizationRegistry((a:[string,any])=>{
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SnowFlake.SnowFlakes.get(a[1]).delete(a[0]);
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});
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private obj:x;
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constructor(id:string,obj:x){
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if(!obj){
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this.id=id;
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return;
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}
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if(!SnowFlake.SnowFlakes.get(obj.constructor)){
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SnowFlake.SnowFlakes.set(obj.constructor,new Map());
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}
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if(SnowFlake.SnowFlakes.get(obj.constructor).get(id)){
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const snowflake=SnowFlake.SnowFlakes.get(obj.constructor).get(id).deref();
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snowflake.obj=obj;
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return snowflake;
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}
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this.id=id;
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SnowFlake.SnowFlakes.get(obj.constructor).set(id,new WeakRef(this));
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SnowFlake.FinalizationRegistry.register(this,[id,obj.constructor]);
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this.obj=obj;
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}
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static getSnowFlakeFromID(id:string,type:any):SnowFlake<any>{
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if(!SnowFlake.SnowFlakes.get(type)){
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SnowFlake.SnowFlakes.set(type,new Map());
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}
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const snowflake=SnowFlake.SnowFlakes.get(type).get(id);
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if(snowflake){
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return snowflake.deref();
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}
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{
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const snowflake=new SnowFlake(id,undefined);
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SnowFlake.SnowFlakes.get(type).set(id,new WeakRef(snowflake));
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SnowFlake.FinalizationRegistry.register(this,[id,type]);
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return snowflake;
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}
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}
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getUnixTime():number{
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return Number((BigInt(this.id)>>22n)+1420070400000n);
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}
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toString(){
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return this.id;
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}
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getObject():x{
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return this.obj;
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}
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}
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export {SnowFlake};
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