1 files changed, 68 insertions, 0 deletions
diff --git a/node_modules/@babel/plugin-transform-classes/lib/inline-createSuper-helpers.js b/node_modules/@babel/plugin-transform-classes/lib/inline-createSuper-helpers.js
new file mode 100644
index 00000000..5d5b2e3a
--- /dev/null
+++ b/node_modules/@babel/plugin-transform-classes/lib/inline-createSuper-helpers.js
@@ -0,0 +1,68 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = addCreateSuperHelper;
+var _core = require("@babel/core");
+const helper = _core.template.statement`
+  function CREATE_SUPER(Derived) {
+    function isNativeReflectConstruct() {
+      if (typeof Reflect === "undefined" || !Reflect.construct) return false;
+
+      // core-js@3
+      if (Reflect.construct.sham) return false;
+
+      // Proxy can't be polyfilled. Every browser implemented
+      // proxies before or at the same time as Reflect.construct,
+      // so if they support Proxy they also support Reflect.construct.
+      if (typeof Proxy === "function") return true;
+
+      // Since Reflect.construct can't be properly polyfilled, some
+      // implementations (e.g. core-js@2) don't set the correct internal slots.
+      // Those polyfills don't allow us to subclass built-ins, so we need to
+      // use our fallback implementation.
+      try {
+        // If the internal slots aren't set, this throws an error similar to
+        //   TypeError: this is not a Date object.
+        Date.prototype.toString.call(Reflect.construct(Date, [], function() {}));
+        return true;
+      } catch (e) {
+        return false;
+      }
+    }
+
+    return function () {
+      var Super = GET_PROTOTYPE_OF(Derived), result;
+      if (isNativeReflectConstruct()) {
+        // NOTE: This doesn't work if this.__proto__.constructor has been modified.
+        var NewTarget = GET_PROTOTYPE_OF(this).constructor;
+        result = Reflect.construct(Super, arguments, NewTarget);
+      } else {
+        result = Super.apply(this, arguments);
+      }
+      return POSSIBLE_CONSTRUCTOR_RETURN(this, result);
+    }
+  }
+`;
+const helperIDs = new WeakMap();
+function addCreateSuperHelper(file) {
+  if (helperIDs.has(file)) {
+    return (_core.types.cloneNode || _core.types.clone)(helperIDs.get(file));
+  }
+  try {
+    return file.addHelper("createSuper");
+  } catch (_unused) {}
+  const id = file.scope.generateUidIdentifier("createSuper");
+  helperIDs.set(file, id);
+  const fn = helper({
+    CREATE_SUPER: id,
+    GET_PROTOTYPE_OF: file.addHelper("getPrototypeOf"),
+    POSSIBLE_CONSTRUCTOR_RETURN: file.addHelper("possibleConstructorReturn")
+  });
+  file.path.unshiftContainer("body", [fn]);
+  file.scope.registerDeclaration(file.path.get("body.0"));
+  return _core.types.cloneNode(id);
+}
+
+//# sourceMappingURL=inline-createSuper-helpers.js.map