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node_modules/core-js/modules/es.reflect.set.js

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+'use strict';
+var $ = require('../internals/export');
+var call = require('../internals/function-call');
+var anObject = require('../internals/an-object');
+var isObject = require('../internals/is-object');
+var isDataDescriptor = require('../internals/is-data-descriptor');
+var fails = require('../internals/fails');
+var definePropertyModule = require('../internals/object-define-property');
+var getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');
+var getPrototypeOf = require('../internals/object-get-prototype-of');
+var createPropertyDescriptor = require('../internals/create-property-descriptor');
+
+// `Reflect.set` method
+// https://tc39.es/ecma262/#sec-reflect.set
+function set(target, propertyKey, V /* , receiver */) {
+  var receiver = arguments.length < 4 ? target : arguments[3];
+  var ownDescriptor = getOwnPropertyDescriptorModule.f(anObject(target), propertyKey);
+  var existingDescriptor, prototype, setter;
+  if (!ownDescriptor) {
+    if (isObject(prototype = getPrototypeOf(target))) {
+      return set(prototype, propertyKey, V, receiver);
+    }
+    ownDescriptor = createPropertyDescriptor(0);
+  }
+  if (isDataDescriptor(ownDescriptor)) {
+    if (ownDescriptor.writable === false || !isObject(receiver)) return false;
+    if (existingDescriptor = getOwnPropertyDescriptorModule.f(receiver, propertyKey)) {
+      if (existingDescriptor.get || existingDescriptor.set || existingDescriptor.writable === false) return false;
+      existingDescriptor.value = V;
+      definePropertyModule.f(receiver, propertyKey, existingDescriptor);
+    } else definePropertyModule.f(receiver, propertyKey, createPropertyDescriptor(0, V));
+  } else {
+    setter = ownDescriptor.set;
+    if (setter === undefined) return false;
+    call(setter, receiver, V);
+  } return true;
+}
+
+// MS Edge 17-18 Reflect.set allows setting the property to object
+// with non-writable property on the prototype
+var MS_EDGE_BUG = fails(function () {
+  var Constructor = function () { /* empty */ };
+  var object = definePropertyModule.f(new Constructor(), 'a', { configurable: true });
+  // eslint-disable-next-line es/no-reflect -- required for testing
+  return Reflect.set(Constructor.prototype, 'a', 1, object) !== false;
+});
+
+$({ target: 'Reflect', stat: true, forced: MS_EDGE_BUG }, {
+  set: set
+});