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18ae34d8f2
Missing coverage encountered while implementing <https://github.com/tc39/ecma262/pull/3307> in SpiderMonkey. Ensure environment lookups are performed in the correct order: - keyed-destructuring-property-reference-target-evaluation-order-with-bindings.js Ensure `delete super[elem]` steps are correctly performed: - delete/super-property-topropertykey.js - delete/super-property-uninitialized-this.js Ensure ToPropertyKey for computed property names in object literals correctly performed: - object/computed-property-name-topropertykey-before-value-evaluation.js Ensure `GetSuperBase` is executed before `ToPropertKey`: - super/prop-expr-getsuperbase-before-topropertykey-* Ensure `GetThisBinding` is executed first: - super/prop-expr-uninitialized-this-*
61 lines
1.4 KiB
JavaScript
61 lines
1.4 KiB
JavaScript
// Copyright (C) 2024 André Bargull. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-super-keyword-runtime-semantics-evaluation
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description: >
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GetSuperBase is performed before ToPropertyKey in GetValue.
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info: |
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13.3.7.1 Runtime Semantics: Evaluation
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SuperProperty : super [ Expression ]
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...
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2. Let actualThis be ? env.GetThisBinding().
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3. Let propertyNameReference be ? Evaluation of Expression.
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4. Let propertyNameValue be ? GetValue(propertyNameReference).
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...
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7. Return ? MakeSuperPropertyReference(actualThis, propertyNameValue, strict).
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13.3.7.3 MakeSuperPropertyReference ( actualThis, propertyKey, strict )
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1. Let env be GetThisEnvironment().
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...
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3. Let baseValue be ? env.GetSuperBase().
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...
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6.2.5.5 GetValue ( V )
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...
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3. If IsPropertyReference(V) is true, then
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...
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c. If V.[[ReferencedName]] is not a property key, then
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i. Set V.[[ReferencedName]] to ? ToPropertyKey(V.[[ReferencedName]]).
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d. Return ? baseObj.[[Get]](V.[[ReferencedName]], GetThisValue(V)).
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...
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---*/
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var proto = {
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p: "ok",
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};
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var proto2 = {
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p: "bad",
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};
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var obj = {
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__proto__: proto,
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m() {
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return super[key];
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}
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};
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var key = {
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toString() {
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Object.setPrototypeOf(obj, proto2);
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return "p";
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}
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};
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assert.sameValue(obj.m(), "ok");
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