simplify fix-regexp-well-known-symbol-logic

Author: zloirock

packages/core-js/internals/fix-regexp-well-known-symbol-logic.js

@@ -10,7 +10,7 @@ var createNonEnumerableProperty = require('../internals/create-non-enumerable-pr
 var SPECIES = wellKnownSymbol('species');
 var RegExpPrototype = RegExp.prototype;
 
-module.exports = function (KEY, length, exec, FORCED, sham) {
+module.exports = function (KEY, exec, FORCED, sham) {
   var SYMBOL = wellKnownSymbol(KEY);
 
   var DELEGATES_TO_SYMBOL = !fails(function () {
@@ -63,18 +63,9 @@ module.exports = function (KEY, length, exec, FORCED, sham) {
       }
       return { done: false };
     });
-    var stringMethod = methods[0];
-    var regexMethod = methods[1];
 
-    redefine(String.prototype, KEY, stringMethod);
-    redefine(RegExpPrototype, SYMBOL, length == 2
-      // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
-      // 21.2.5.11 RegExp.prototype[@@split](string, limit)
-      ? function (string, arg) { return regexMethod.call(string, this, arg); }
-      // 21.2.5.6 RegExp.prototype[@@match](string)
-      // 21.2.5.9 RegExp.prototype[@@search](string)
-      : function (string) { return regexMethod.call(string, this); }
-    );
+    redefine(String.prototype, KEY, methods[0]);
+    redefine(RegExpPrototype, SYMBOL, methods[1]);
   }
 
   if (sham) createNonEnumerableProperty(RegExpPrototype[SYMBOL], 'sham', true);

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

@@ -7,7 +7,7 @@ var advanceStringIndex = require('../internals/advance-string-index');
 var regExpExec = require('../internals/regexp-exec-abstract');
 
 // @@match logic
-fixRegExpWellKnownSymbolLogic('match', 1, function (MATCH, nativeMatch, maybeCallNative) {
+fixRegExpWellKnownSymbolLogic('match', function (MATCH, nativeMatch, maybeCallNative) {
   return [
     // `String.prototype.match` method
     // https://tc39.es/ecma262/#sec-string.prototype.match
@@ -18,12 +18,12 @@ fixRegExpWellKnownSymbolLogic('match', 1, function (MATCH, nativeMatch, maybeCal
     },
     // `RegExp.prototype[@@match]` method
     // https://tc39.es/ecma262/#sec-regexp.prototype-@@match
-    function (regexp) {
-      var res = maybeCallNative(nativeMatch, regexp, this);
+    function (string) {
+      var res = maybeCallNative(nativeMatch, this, string);
       if (res.done) return res.value;
 
-      var rx = anObject(regexp);
-      var S = String(this);
+      var rx = anObject(this);
+      var S = String(string);
 
       if (!rx.global) return regExpExec(rx, S);
 

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

@@ -34,7 +34,7 @@ var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () {
 })();
 
 // @@replace logic
-fixRegExpWellKnownSymbolLogic('replace', 2, function (_, nativeReplace, maybeCallNative) {
+fixRegExpWellKnownSymbolLogic('replace', function (_, nativeReplace, maybeCallNative) {
   var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0';
 
   return [
@@ -49,17 +49,17 @@ fixRegExpWellKnownSymbolLogic('replace', 2, function (_, nativeReplace, maybeCal
     },
     // `RegExp.prototype[@@replace]` method
     // https://tc39.es/ecma262/#sec-regexp.prototype-@@replace
-    function (regexp, replaceValue) {
+    function (string, replaceValue) {
       if (
         (!REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE && REPLACE_KEEPS_$0) ||
         (typeof replaceValue === 'string' && replaceValue.indexOf(UNSAFE_SUBSTITUTE) === -1)
       ) {
-        var res = maybeCallNative(nativeReplace, regexp, this, replaceValue);
+        var res = maybeCallNative(nativeReplace, this, string, replaceValue);
         if (res.done) return res.value;
       }
 
-      var rx = anObject(regexp);
-      var S = String(this);
+      var rx = anObject(this);
+      var S = String(string);
 
       var functionalReplace = typeof replaceValue === 'function';
       if (!functionalReplace) replaceValue = String(replaceValue);

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

@@ -6,7 +6,7 @@ var sameValue = require('../internals/same-value');
 var regExpExec = require('../internals/regexp-exec-abstract');
 
 // @@search logic
-fixRegExpWellKnownSymbolLogic('search', 1, function (SEARCH, nativeSearch, maybeCallNative) {
+fixRegExpWellKnownSymbolLogic('search', function (SEARCH, nativeSearch, maybeCallNative) {
   return [
     // `String.prototype.search` method
     // https://tc39.es/ecma262/#sec-string.prototype.search
@@ -17,12 +17,12 @@ fixRegExpWellKnownSymbolLogic('search', 1, function (SEARCH, nativeSearch, maybe
     },
     // `RegExp.prototype[@@search]` method
     // https://tc39.es/ecma262/#sec-regexp.prototype-@@search
-    function (regexp) {
-      var res = maybeCallNative(nativeSearch, regexp, this);
+    function (string) {
+      var res = maybeCallNative(nativeSearch, this, string);
       if (res.done) return res.value;
 
-      var rx = anObject(regexp);
-      var S = String(this);
+      var rx = anObject(this);
+      var S = String(string);
 
       var previousLastIndex = rx.lastIndex;
       if (!sameValue(previousLastIndex, 0)) rx.lastIndex = 0;

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

@@ -28,7 +28,7 @@ var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = !fails(function () {
 });
 
 // @@split logic
-fixRegExpWellKnownSymbolLogic('split', 2, function (SPLIT, nativeSplit, maybeCallNative) {
+fixRegExpWellKnownSymbolLogic('split', function (SPLIT, nativeSplit, maybeCallNative) {
   var internalSplit;
   if (
     'abbc'.split(/(b)*/)[1] == 'c' ||
@@ -97,12 +97,12 @@ fixRegExpWellKnownSymbolLogic('split', 2, function (SPLIT, nativeSplit, maybeCal
     //
     // NOTE: This cannot be properly polyfilled in engines that don't support
     // the 'y' flag.
-    function (regexp, limit) {
-      var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== nativeSplit);
+    function (string, limit) {
+      var res = maybeCallNative(internalSplit, this, string, limit, internalSplit !== nativeSplit);
       if (res.done) return res.value;
 
-      var rx = anObject(regexp);
-      var S = String(this);
+      var rx = anObject(this);
+      var S = String(string);
       var C = speciesConstructor(rx, RegExp);
 
       var unicodeMatching = rx.unicode;