mirror of https://github.com/tc39/test262.git
27 lines
860 B
JavaScript
27 lines
860 B
JavaScript
// Copyright (C) 2020 Alexey Shvayka. 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-assignment-operators-runtime-semantics-evaluation
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description: >
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ToBoolean returns `false` for [[IsHTMLDDA]] object; rval is evaluated.
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info: |
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AssignmentExpression : LeftHandSideExpression ||= AssignmentExpression
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1. Let lref be the result of evaluating LeftHandSideExpression.
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2. Let lval be ? GetValue(lref).
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3. Let lbool be ! ToBoolean(lval).
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[...]
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7. Perform ? PutValue(lref, rval).
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8. Return rval.
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The [[IsHTMLDDA]] Internal Slot / Changes to ToBoolean
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1. If argument has an [[IsHTMLDDA]] internal slot, return false.
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2. Return true.
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features: [IsHTMLDDA, logical-assignment-operators]
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---*/
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var value = $262.IsHTMLDDA;
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assert.sameValue(value ||= 2, 2);
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assert.sameValue(value, 2);
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