Strict mode Failing
Expected no error, got SyntaxError: Invalid expression encountered
non-Strict mode Failing
Expected no error, got SyntaxError: Invalid expression encountered
Features:
- logical-assignment-operators
Expected no error, got SyntaxError: Invalid expression encountered
Expected no error, got SyntaxError: Invalid expression encountered
// Copyright (c) 2020 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-assignment-operators-runtime-semantics-evaluation
description: NamedEvaluation of Logical Nullish Assignment
info: |
AssignmentExpression:
LeftHandSideExpression ??= AssignmentExpression
4. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
features: [logical-assignment-operators]
---*/
var value = undefined;
value ??= class {};
assert.sameValue(value.name, "value", "value");