refactor: polyfills review

2024-05-30 20:27:12 +08:00
parent 3514cfbd44
commit 01d67eb239
6 changed files with 79 additions and 93 deletions
--- a/src/polyfills/RegExp.js
+++ b/src/polyfills/RegExp.js
@@ -1,50 +1,30 @@
-(function (global) {
-  if (typeof global === "object" && global) {
-    if (typeof global.RegExp !== "undefined") {
-      const OriginalRegExp = global.RegExp;
-      const CustomRegExp = function (pattern, flags) {
-        if (typeof pattern === "string" && typeof flags === "string") {
-          flags = flags;
-        } else if (pattern instanceof OriginalRegExp && flags === undefined) {
-          flags = pattern.flags;
-        }
-
-        if (flags) {
-          if (!global.RegExp.prototype.hasOwnProperty("unicodeSets")) {
-            if (flags.includes("v")) {
-              flags = flags.replace("v", "u");
-            }
-          }
-
-          if (!global.RegExp.prototype.hasOwnProperty("hasIndices")) {
-            if (flags.includes("d")) {
-              flags = flags.replace("d", "");
-            }
-          }
-        }
-
-        return new OriginalRegExp(pattern, flags);
-      };
-
-      CustomRegExp.prototype = OriginalRegExp.prototype;
-
-      global.RegExp = CustomRegExp;
-    }
+(function () {
+  if (typeof window.RegExp === "undefined") {
+    return;
  }
-})(
-  (function () {
-    switch (true) {
-      case typeof globalThis === "object" && !!globalThis:
-        return globalThis;
-      case typeof self === "object" && !!self:
-        return self;
-      case typeof window === "object" && !!window:
-        return window;
-      case typeof global === "object" && !!global:
-        return global;
-      case typeof Function === "function":
-        return Function("return this")();
+
+  const originalRegExp = window.RegExp;
+
+  window.RegExp = function (pattern, flags) {
+    if (pattern instanceof originalRegExp && flags === undefined) {
+      flags = pattern.flags;
    }
-    return null;
-  })()
-);
+
+    if (flags) {
+      if (!originalRegExp.prototype.hasOwnProperty("unicodeSets")) {
+        if (flags.includes("v")) {
+          flags = flags.replace("v", "u");
+        }
+      }
+
+      if (!originalRegExp.prototype.hasOwnProperty("hasIndices")) {
+        if (flags.includes("d")) {
+          flags = flags.replace("d", "");
+        }
+      }
+    }
+
+    return new originalRegExp(pattern, flags);
+  };
+  window.RegExp.prototype = originalRegExp.prototype;
+})();