prevent some theoretical cases of breaking / observing the internal s…

…tate by patching `Array.prototype[@@species]`

CHANGELOG.md

@@ -2,6 +2,7 @@
 ##### Unreleased
 - Added a workaround for a UC Browser specific version bug with unobservable `RegExp#sticky` flag, [#1008](https://github.com/zloirock/core-js/issues/1008), [#1015](https://github.com/zloirock/core-js/issues/1015)
 - Added handling of comments and specific spaces to `Function#name` polyfill, [#1010](https://github.com/zloirock/core-js/issues/1010), thanks [@ildar-shaimordanov](https://github.com/ildar-shaimordanov)
+- Prevented some theoretical cases of breaking / observing the internal state by patching `Array.prototype[@@species]`
 - Added iOS Safari 15.2 compat data mapping
 - Added Electron 17.0 compat data mapping
 - Updated Deno compat data mapping

packages/core-js/internals/array-buffer.js

@@ -17,7 +17,7 @@ var setPrototypeOf = require('../internals/object-set-prototype-of');
 var getOwnPropertyNames = require('../internals/object-get-own-property-names').f;
 var defineProperty = require('../internals/object-define-property').f;
 var arrayFill = require('../internals/array-fill');
-var arraySlice = require('../internals/array-slice');
+var arraySlice = require('../internals/array-slice-simple');
 var setToStringTag = require('../internals/set-to-string-tag');
 var InternalStateModule = require('../internals/internal-state');
 

packages/core-js/internals/array-slice-simple.js

@@ -0,0 +1,17 @@
+var global = require('../internals/global');
+var toAbsoluteIndex = require('../internals/to-absolute-index');
+var lengthOfArrayLike = require('../internals/length-of-array-like');
+var createProperty = require('../internals/create-property');
+
+var Array = global.Array;
+var max = Math.max;
+
+module.exports = function (O, start, end) {
+  var length = lengthOfArrayLike(O);
+  var k = toAbsoluteIndex(start, length);
+  var fin = toAbsoluteIndex(end === undefined ? length : end, length);
+  var result = Array(max(fin - k, 0));
+  for (var n = 0; k < fin; k++, n++) createProperty(result, n, O[k]);
+  result.length = n;
+  return result;
+};

packages/core-js/internals/array-sort.js

@@ -1,4 +1,4 @@
-var arraySlice = require('../internals/array-slice');
+var arraySlice = require('../internals/array-slice-simple');
 
 var floor = Math.floor;
 

packages/core-js/internals/clear-error-stack.js

@@ -1,5 +1,5 @@
 var uncurryThis = require('../internals/function-uncurry-this');
-var arraySlice = require('../internals/array-slice');
+var arraySlice = require('../internals/array-slice-simple');
 
 var replace = uncurryThis(''.replace);
 var split = uncurryThis(''.split);

packages/core-js/internals/object-get-own-property-names-external.js

@@ -2,7 +2,7 @@
 var classof = require('../internals/classof-raw');
 var toIndexedObject = require('../internals/to-indexed-object');
 var $getOwnPropertyNames = require('../internals/object-get-own-property-names').f;
-var arraySlice = require('../internals/array-slice');
+var arraySlice = require('../internals/array-slice-simple');
 
 var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
   ? Object.getOwnPropertyNames(window) : [];

packages/core-js/modules/es.string.split.js

@@ -11,7 +11,7 @@ var advanceStringIndex = require('../internals/advance-string-index');
 var toLength = require('../internals/to-length');
 var toString = require('../internals/to-string');
 var getMethod = require('../internals/get-method');
-var arraySlice = require('../internals/array-slice');
+var arraySlice = require('../internals/array-slice-simple');
 var callRegExpExec = require('../internals/regexp-exec-abstract');
 var regexpExec = require('../internals/regexp-exec');
 var stickyHelpers = require('../internals/regexp-sticky-helpers');

packages/core-js/modules/web.url.js

@@ -14,7 +14,7 @@ var anInstance = require('../internals/an-instance');
 var hasOwn = require('../internals/has-own-property');
 var assign = require('../internals/object-assign');
 var arrayFrom = require('../internals/array-from');
-var arraySlice = require('../internals/array-slice');
+var arraySlice = require('../internals/array-slice-simple');
 var codeAt = require('../internals/string-multibyte').codeAt;
 var toASCII = require('../internals/string-punycode-to-ascii');
 var $toString = require('../internals/to-string');