import React__default from "react";
var has = Object.prototype.hasOwnProperty;
function find(iter, tar, key) {
  for (key of iter.keys()) {
    if (dequal(key, tar)) return key;
  }
}
function dequal(foo, bar) {
  var ctor, len, tmp;
  if (foo === bar) return true;
  if (foo && bar && (ctor = foo.constructor) === bar.constructor) {
    if (ctor === Date) return foo.getTime() === bar.getTime();
    if (ctor === RegExp) return foo.toString() === bar.toString();
    if (ctor === Array) {
      if ((len = foo.length) === bar.length) {
        while (len-- && dequal(foo[len], bar[len])) ;
      }
      return len === -1;
    }
    if (ctor === Set) {
      if (foo.size !== bar.size) {
        return false;
      }
      for (len of foo) {
        tmp = len;
        if (tmp && typeof tmp === "object") {
          tmp = find(bar, tmp);
          if (!tmp) return false;
        }
        if (!bar.has(tmp)) return false;
      }
      return true;
    }
    if (ctor === Map) {
      if (foo.size !== bar.size) {
        return false;
      }
      for (len of foo) {
        tmp = len[0];
        if (tmp && typeof tmp === "object") {
          tmp = find(bar, tmp);
          if (!tmp) return false;
        }
        if (!dequal(len[1], bar.get(tmp))) {
          return false;
        }
      }
      return true;
    }
    if (ctor === ArrayBuffer) {
      foo = new Uint8Array(foo);
      bar = new Uint8Array(bar);
    } else if (ctor === DataView) {
      if ((len = foo.byteLength) === bar.byteLength) {
        while (len-- && foo.getInt8(len) === bar.getInt8(len)) ;
      }
      return len === -1;
    }
    if (ArrayBuffer.isView(foo)) {
      if ((len = foo.byteLength) === bar.byteLength) {
        while (len-- && foo[len] === bar[len]) ;
      }
      return len === -1;
    }
    if (!ctor || typeof foo === "object") {
      len = 0;
      for (ctor in foo) {
        if (has.call(foo, ctor) && ++len && !has.call(bar, ctor)) return false;
        if (!(ctor in bar) || !dequal(foo[ctor], bar[ctor])) return false;
      }
      return Object.keys(bar).length === len;
    }
  }
  return foo !== foo && bar !== bar;
}
function useDeepCompareMemoize(dependencies) {
  const dependenciesRef = React__default.useRef(dependencies);
  const signalRef = React__default.useRef(0);
  if (!dequal(dependencies, dependenciesRef.current)) {
    dependenciesRef.current = dependencies;
    signalRef.current += 1;
  }
  return React__default.useMemo(() => dependenciesRef.current, [signalRef.current]);
}
function useDeepCompareEffect(effect, dependencies) {
  React__default.useEffect(effect, useDeepCompareMemoize(dependencies));
}
export {
  useDeepCompareEffect as u
};
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