var weakMemoize = function weakMemoize(func) {
// $FlowFixMe flow doesn't include all non-primitive types as allowed for weakmaps
var cache = new WeakMap();
return function (arg) {
if (cache.has(arg)) {
// $FlowFixMe
return cache.get(arg);
}
var ret = func(arg);
cache.set(arg, ret);
return ret;
};
};
export default weakMemoize;
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