File size: 903 Bytes
bc20498 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 |
import * as is from '../is';
import * as util from '../util';
let cache = function( fn, name ){
return function traversalCache( arg1, arg2, arg3, arg4 ){
let selectorOrEles = arg1;
let eles = this;
let key;
if( selectorOrEles == null ){
key = '';
} else if( is.elementOrCollection( selectorOrEles ) && selectorOrEles.length === 1 ){
key = selectorOrEles.id();
}
if( eles.length === 1 && key ){
let _p = eles[0]._private;
let tch = _p.traversalCache = _p.traversalCache || {};
let ch = tch[ name ] = tch[ name ] || [];
let hash = util.hashString( key );
let cacheHit = ch[ hash ];
if( cacheHit ){
return cacheHit;
} else {
return ( ch[ hash ] = fn.call( eles, arg1, arg2, arg3, arg4 ) );
}
} else {
return fn.call( eles, arg1, arg2, arg3, arg4 );
}
};
};
export default cache;
|