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build/node_modules/prepack/lib/evaluators/SuperCall.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = SuperCall;
+
+var _environment = require("../environment.js");
+
+var _index = require("../values/index.js");
+
+var _index2 = require("../methods/index.js");
+
+var _singletons = require("../singletons.js");
+
+var _invariant = require("../invariant.js");
+
+var _invariant2 = _interopRequireDefault(_invariant);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+function GetSuperConstructor(realm) {
+  // 1. Let envRec be GetThisEnvironment( ).
+  var envRec = _singletons.Environment.GetThisEnvironment(realm);
+
+  // 2. Assert: envRec is a function Environment Record.
+  (0, _invariant2.default)(envRec instanceof _environment.FunctionEnvironmentRecord);
+
+  // 3. Let activeFunction be envRec.[[FunctionObject]].
+  var activeFunction = envRec.$FunctionObject;
+
+  // 4. Let superConstructor be activeFunction.[[GetPrototypeOf]]().
+  var superConstructor = activeFunction.$GetPrototypeOf();
+
+  // 5. ReturnIfAbrupt(superConstructor).
+
+  // 6. If IsConstructor(superConstructor) is false, throw a TypeError exception.
+  if (!(0, _index2.IsConstructor)(realm, superConstructor)) {
+    throw realm.createErrorThrowCompletion(realm.intrinsics.TypeError, "super called outside of constructor");
+  }
+  (0, _invariant2.default)(superConstructor instanceof _index.ObjectValue);
+
+  // 7. Return superConstructor.
+  return superConstructor;
+}
+
+// ECMA262 12.3.5.1
+function SuperCall(Arguments, strictCode, env, realm) {
+  // 1. Let newTarget be GetNewTarget().
+  var newTarget = (0, _index2.GetNewTarget)(realm);
+
+  // 2. If newTarget is undefined, throw a ReferenceError exception.
+  if (newTarget instanceof _index.UndefinedValue) {
+    throw realm.createErrorThrowCompletion(realm.intrinsics.ReferenceError, "newTarget is undefined");
+  }
+
+  // 3. Let func be GetSuperConstructor().
+  var func = GetSuperConstructor(realm);
+
+  // 4. ReturnIfAbrupt(func).
+
+  // 5. Let argList be ArgumentListEvaluation of Arguments.
+  var argList = (0, _index2.ArgumentListEvaluation)(realm, strictCode, env, Arguments);
+
+  // 6. ReturnIfAbrupt(argList).
+
+  // 7. Let result be Construct(func, argList, newTarget).
+  var result = (0, _index2.Construct)(realm, func, argList, newTarget);
+
+  // 8. ReturnIfAbrupt(result).
+
+  // 9. Let thisER be GetThisEnvironment( ).
+  var thisER = _singletons.Environment.GetThisEnvironment(realm);
+
+  // 10. Return thisER.BindThisValue(result).
+  return thisER.BindThisValue(result);
+}
+//# sourceMappingURL=SuperCall.js.map