three
Version:
JavaScript 3D library
55 lines (28 loc) • 510 B
JavaScript
class DataMap {
constructor() {
this.data = new WeakMap();
}
get( object ) {
let map = this.data.get( object );
if ( map === undefined ) {
map = {};
this.data.set( object, map );
}
return map;
}
delete( object ) {
let map;
if ( this.data.has( object ) ) {
map = this.data.get( object );
this.data.delete( object );
}
return map;
}
has( object ) {
return this.data.has( object );
}
dispose() {
this.data.clear();
}
}
export default DataMap;