90 lines
3.4 KiB
JavaScript
90 lines
3.4 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = SuperProperty;
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var _environment = require("../environment.js");
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var _index = require("../values/index.js");
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var _index2 = require("../methods/index.js");
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var _singletons = require("../singletons.js");
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var _invariant = require("../invariant.js");
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var _invariant2 = _interopRequireDefault(_invariant);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* Copyright (c) 2017-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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function MakeSuperPropertyReference(realm, propertyKey, strict) {
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// 1. Let env be GetThisEnvironment( ).
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var env = _singletons.Environment.GetThisEnvironment(realm);
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(0, _invariant2.default)(env instanceof _environment.FunctionEnvironmentRecord);
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// 2. If env.HasSuperBinding() is false, throw a ReferenceError exception.
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if (!env.HasSuperBinding()) {
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throw realm.createErrorThrowCompletion(realm.intrinsics.ReferenceError, "env does not have super binding");
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}
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// 3. Let actualThis be env.GetThisBinding().
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var actualThis = env.GetThisBinding();
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// 4. ReturnIfAbrupt(actualThis).
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// 5. Let baseValue be env.GetSuperBase().
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var baseValue = env.GetSuperBase();
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// 6. Let bv be RequireObjectCoercible(baseValue).
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var bv = (0, _index2.RequireObjectCoercible)(realm, baseValue);
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// 7. ReturnIfAbrupt(bv).
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// 8. Return a value of type Reference that is a Super Reference whose base value is bv, whose referenced name is propertyKey, whose thisValue is actualThis, and whose strict reference flag is strict.
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return new _environment.Reference(bv, propertyKey, strict, actualThis);
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}
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// ECMA262 12.3.5.1
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function SuperProperty(ast, strictCode, env, realm) {
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// SuperProperty : super [ Expression ]
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if (ast.computed) {
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// 1. Let propertyNameReference be the result of evaluating Expression.
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var propertyNameReference = env.evaluate(ast.property, strictCode);
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// 2. Let propertyNameValue be GetValue(propertyNameReference).
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var propertyNameValue = _singletons.Environment.GetValue(realm, propertyNameReference);
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// 3. Let propertyKey be ToPropertyKey(propertyNameValue).
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var propertyKey = _singletons.To.ToPropertyKeyPartial(realm, propertyNameValue);
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// 4. ReturnIfAbrupt(propertyKey).
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// 5. If the code matched by the syntactic production that is being evaluated is strict mode code, let strict be true, else let strict be false.
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var strict = strictCode;
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// 6. Return MakeSuperPropertyReference(propertyKey, strict).
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return MakeSuperPropertyReference(realm, propertyKey, strict);
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} else {
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// SuperProperty : super . IdentifierName
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// 1. Let propertyKey be StringValue of IdentifierName.
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var _propertyKey = new _index.StringValue(realm, ast.property.name);
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// 2. If the code matched by the syntactic production that is being evaluated is strict mode code, let strict be true, else let strict be false.
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var _strict = strictCode;
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// 3. Return MakeSuperPropertyReference(propertyKey, strict).
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return MakeSuperPropertyReference(realm, _propertyKey, _strict);
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}
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}
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//# sourceMappingURL=SuperProperty.js.map
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