extract aSet from Set helpers for better tree shaking

packages/core-js-pure/override/internals/a-set.js

@@ -0,0 +1,8 @@
+var anObject = require('../internals/an-object');
+var tryToString = require('../internals/try-to-string');
+
+module.exports = function (it) {
+  anObject(it);
+  if ('size' in it && 'has' in it && 'add' in it && 'delete' in it && 'keys' in it) return it;
+  throw TypeError(tryToString(it) + ' is not a set');
+};

packages/core-js-pure/override/internals/set-helpers.js

@@ -1,20 +1,11 @@
 var getBuiltIn = require('../internals/get-built-in');
-var anObject = require('../internals/an-object');
-var tryToString = require('../internals/try-to-string');
 var caller = require('../internals/caller');
 
 var Set = getBuiltIn('Set');
 var SetPrototype = Set.prototype;
 
-var aSet = function (it) {
-  anObject(it);
-  if ('size' in it && 'has' in it && 'add' in it && 'delete' in it && 'keys' in it) return it;
-  throw TypeError(tryToString(it) + ' is not a set');
-};
-
 module.exports = {
   Set: Set,
-  aSet: aSet,
   add: caller('add', 1),
   has: caller('has', 1),
   remove: caller('delete', 1),

packages/core-js/internals/a-set.js

@@ -0,0 +1,6 @@
+var has = require('../internals/set-helpers').has;
+
+module.exports = function (it) {
+  has(it);
+  return it;
+};

packages/core-js/internals/set-difference.js

@@ -1,12 +1,12 @@
 'use strict';
+var aSet = require('../internals/a-set');
 var SetHelpers = require('../internals/set-helpers');
-var iterate = require('../internals/set-iterate');
 var clone = require('../internals/set-clone');
 var size = require('../internals/set-size');
 var getSetRecord = require('../internals/get-set-record');
+var iterateSet = require('../internals/set-iterate');
 var iterateSimple = require('../internals/iterate-simple');
 
-var aSet = SetHelpers.aSet;
 var has = SetHelpers.has;
 var remove = SetHelpers.remove;
 
@@ -16,7 +16,7 @@ module.exports = function difference(other) {
   var O = aSet(this);
   var otherRec = getSetRecord(other);
   var result = clone(O);
-  if (size(O) <= otherRec.size) iterate(O, function (e) {
+  if (size(O) <= otherRec.size) iterateSet(O, function (e) {
     if (otherRec.includes(e)) remove(result, e);
   });
   else iterateSimple(otherRec.getIterator(), function (e) {

packages/core-js/internals/set-helpers.js

@@ -2,22 +2,14 @@ var uncurryThis = require('../internals/function-uncurry-this');
 
 // eslint-disable-next-line es/no-set -- safe
 var SetPrototype = Set.prototype;
-var $has = SetPrototype.has;
-var has = uncurryThis($has);
-
-var aSet = function (it) {
-  has(it);
-  return it;
-};
 
 module.exports = {
   // eslint-disable-next-line es/no-set -- safe
   Set: Set,
-  aSet: aSet,
   add: uncurryThis(SetPrototype.add),
-  has: has,
+  has: uncurryThis(SetPrototype.has),
   remove: uncurryThis(SetPrototype['delete']),
   proto: SetPrototype,
-  $has: $has,
+  $has: SetPrototype.has,
   $keys: SetPrototype.keys
 };

packages/core-js/internals/set-intersection.js

@@ -1,12 +1,12 @@
 'use strict';
+var aSet = require('../internals/a-set');
 var SetHelpers = require('../internals/set-helpers');
-var iterate = require('../internals/set-iterate');
 var size = require('../internals/set-size');
 var getSetRecord = require('../internals/get-set-record');
+var iterateSet = require('../internals/set-iterate');
 var iterateSimple = require('../internals/iterate-simple');
 
 var Set = SetHelpers.Set;
-var aSet = SetHelpers.aSet;
 var add = SetHelpers.add;
 var has = SetHelpers.has;
 var nativeHas = SetHelpers.$has;
@@ -33,11 +33,11 @@ module.exports = function intersection(other) {
 
     var disordered = result;
     result = new Set();
-    iterate(O, function (e) {
+    iterateSet(O, function (e) {
       if (has(disordered, e)) add(result, e);
     });
   } else {
-    iterate(O, function (e) {
+    iterateSet(O, function (e) {
       if (otherRec.includes(e)) add(result, e);
     });
   }

packages/core-js/internals/set-is-disjoint-from.js

@@ -1,20 +1,18 @@
 'use strict';
-var SetHelpers = require('../internals/set-helpers');
-var iterate = require('../internals/set-iterate');
+var aSet = require('../internals/a-set');
+var has = require('../internals/set-helpers').has;
 var size = require('../internals/set-size');
 var getSetRecord = require('../internals/get-set-record');
+var iterateSet = require('../internals/set-iterate');
 var iterateSimple = require('../internals/iterate-simple');
 
-var aSet = SetHelpers.aSet;
-var has = SetHelpers.has;
-
 // `Set.prototype.isDisjointFrom` method
 // https://tc39.github.io/proposal-set-methods/#Set.prototype.isDisjointFrom
 module.exports = function isDisjointFrom(other) {
   var O = aSet(this);
   var otherRec = getSetRecord(other);
   return false !== (size(O) <= otherRec.size
-    ? iterate(O, function (e) {
+    ? iterateSet(O, function (e) {
       if (otherRec.includes(e)) return false;
     }, true)
     : iterateSimple(otherRec.getIterator(), function (e) {

packages/core-js/internals/set-is-subset-of.js

@@ -1,11 +1,9 @@
 'use strict';
-var SetHelpers = require('../internals/set-helpers');
-var iterate = require('../internals/set-iterate');
+var aSet = require('../internals/a-set');
 var size = require('../internals/set-size');
+var iterate = require('../internals/set-iterate');
 var getSetRecord = require('../internals/get-set-record');
 
-var aSet = SetHelpers.aSet;
-
 // `Set.prototype.isSubsetOf` method
 // https://tc39.github.io/proposal-set-methods/#Set.prototype.isSubsetOf
 module.exports = function isSubsetOf(other) {

packages/core-js/internals/set-is-superset-of.js

@@ -1,12 +1,10 @@
 'use strict';
-var SetHelpers = require('../internals/set-helpers');
+var aSet = require('../internals/a-set');
+var has = require('../internals/set-helpers').has;
 var size = require('../internals/set-size');
 var getSetRecord = require('../internals/get-set-record');
 var iterateSimple = require('../internals/iterate-simple');
 
-var aSet = SetHelpers.aSet;
-var has = SetHelpers.has;
-
 // `Set.prototype.isSupersetOf` method
 // https://tc39.github.io/proposal-set-methods/#Set.prototype.isSupersetOf
 module.exports = function isSupersetOf(other) {

packages/core-js/internals/set-symmetric-difference.js

@@ -1,10 +1,10 @@
 'use strict';
+var aSet = require('../internals/a-set');
 var SetHelpers = require('../internals/set-helpers');
 var clone = require('../internals/set-clone');
 var getSetRecord = require('../internals/get-set-record');
 var iterateSimple = require('../internals/iterate-simple');
 
-var aSet = SetHelpers.aSet;
 var add = SetHelpers.add;
 var has = SetHelpers.has;
 var remove = SetHelpers.remove;

packages/core-js/internals/set-union.js

@@ -1,12 +1,10 @@
 'use strict';
-var SetHelpers = require('../internals/set-helpers');
+var aSet = require('../internals/a-set');
+var add = require('../internals/set-helpers').add;
 var clone = require('../internals/set-clone');
 var getSetRecord = require('../internals/get-set-record');
 var iterateSimple = require('../internals/iterate-simple');
 
-var aSet = SetHelpers.aSet;
-var add = SetHelpers.add;
-
 // `Set.prototype.union` method
 // https://github.com/tc39/proposal-set-methods
 module.exports = function union(other) {

packages/core-js/modules/esnext.set.add-all.js

@@ -1,9 +1,7 @@
 'use strict';
 var $ = require('../internals/export');
-var SetHelpers = require('../internals/set-helpers');
-
-var aSet = SetHelpers.aSet;
-var add = SetHelpers.add;
+var aSet = require('../internals/a-set');
+var add = require('../internals/set-helpers').add;
 
 // `Set.prototype.addAll` method
 // https://github.com/tc39/proposal-collection-methods

packages/core-js/modules/esnext.set.delete-all.js

@@ -1,9 +1,7 @@
 'use strict';
 var $ = require('../internals/export');
-var SetHelpers = require('../internals/set-helpers');
-
-var aSet = SetHelpers.aSet;
-var remove = SetHelpers.remove;
+var aSet = require('../internals/a-set');
+var remove = require('../internals/set-helpers').remove;
 
 // `Set.prototype.deleteAll` method
 // https://github.com/tc39/proposal-collection-methods

packages/core-js/modules/esnext.set.every.js

@@ -1,11 +1,9 @@
 'use strict';
 var $ = require('../internals/export');
 var bind = require('../internals/function-bind-context');
-var SetHelpers = require('../internals/set-helpers');
+var aSet = require('../internals/a-set');
 var iterate = require('../internals/set-iterate');
 
-var aSet = SetHelpers.aSet;
-
 // `Set.prototype.every` method
 // https://github.com/tc39/proposal-collection-methods
 $({ target: 'Set', proto: true, real: true, forced: true }, {

packages/core-js/modules/esnext.set.filter.js

@@ -1,11 +1,11 @@
 'use strict';
 var $ = require('../internals/export');
 var bind = require('../internals/function-bind-context');
+var aSet = require('../internals/a-set');
 var SetHelpers = require('../internals/set-helpers');
 var iterate = require('../internals/set-iterate');
 
 var Set = SetHelpers.Set;
-var aSet = SetHelpers.aSet;
 var add = SetHelpers.add;
 
 // `Set.prototype.filter` method

packages/core-js/modules/esnext.set.find.js

@@ -1,11 +1,9 @@
 'use strict';
 var $ = require('../internals/export');
 var bind = require('../internals/function-bind-context');
-var SetHelpers = require('../internals/set-helpers');
+var aSet = require('../internals/a-set');
 var iterate = require('../internals/set-iterate');
 
-var aSet = SetHelpers.aSet;
-
 // `Set.prototype.find` method
 // https://github.com/tc39/proposal-collection-methods
 $({ target: 'Set', proto: true, real: true, forced: true }, {

packages/core-js/modules/esnext.set.join.js

@@ -1,11 +1,10 @@
 'use strict';
 var $ = require('../internals/export');
 var uncurryThis = require('../internals/function-uncurry-this');
-var toString = require('../internals/to-string');
-var SetHelpers = require('../internals/set-helpers');
+var aSet = require('../internals/a-set');
 var iterate = require('../internals/set-iterate');
+var toString = require('../internals/to-string');
 
-var aSet = SetHelpers.aSet;
 var arrayJoin = uncurryThis([].join);
 var push = uncurryThis([].push);
 

packages/core-js/modules/esnext.set.map.js

@@ -1,11 +1,11 @@
 'use strict';
 var $ = require('../internals/export');
 var bind = require('../internals/function-bind-context');
+var aSet = require('../internals/a-set');
 var SetHelpers = require('../internals/set-helpers');
 var iterate = require('../internals/set-iterate');
 
 var Set = SetHelpers.Set;
-var aSet = SetHelpers.aSet;
 var add = SetHelpers.add;
 
 // `Set.prototype.map` method

packages/core-js/modules/esnext.set.reduce.js

@@ -1,11 +1,10 @@
 'use strict';
 var $ = require('../internals/export');
 var aCallable = require('../internals/a-callable');
-var SetHelpers = require('../internals/set-helpers');
+var aSet = require('../internals/a-set');
 var iterate = require('../internals/set-iterate');
 
 var $TypeError = TypeError;
-var aSet = SetHelpers.aSet;
 
 // `Set.prototype.reduce` method
 // https://github.com/tc39/proposal-collection-methods

packages/core-js/modules/esnext.set.some.js

@@ -1,11 +1,9 @@
 'use strict';
 var $ = require('../internals/export');
 var bind = require('../internals/function-bind-context');
-var SetHelpers = require('../internals/set-helpers');
+var aSet = require('../internals/a-set');
 var iterate = require('../internals/set-iterate');
 
-var aSet = SetHelpers.aSet;
-
 // `Set.prototype.some` method
 // https://github.com/tc39/proposal-collection-methods
 $({ target: 'Set', proto: true, real: true, forced: true }, {