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Add coalesce expression test

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Alexey Shvayka 2020-08-10 12:23:59 +03:00 committed by Rick Waldron
parent 2f6d3a90b5
commit 4312dfa6a6
1 changed files with 20 additions and 0 deletions
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test/annexB/language/expressions/coalesce/emulates-undefined.js Normal file
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// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-binary-bitwise-operators-runtime-semantics-evaluation
description: >
?? doesn't special-case [[IsHTMLDDA]] object; rval is not evaluated.
info: |
CoalesceExpression : CoalesceExpressionHead ?? BitwiseORExpression
1. Let lref be the result of evaluating CoalesceExpressionHead.
2. Let lval be ? GetValue(lref).
3. If lval is undefined or null, then
[...]
4. Otherwise, return lval.
features: [IsHTMLDDA, coalesce-expression]
---*/
var IsHTMLDDA = $262.IsHTMLDDA;
assert.sameValue(IsHTMLDDA ?? unresolved, IsHTMLDDA);