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6ca81ad72a
PR-URL: https://github.com/nodejs/node/pull/30020 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
24 lines
585 B
JavaScript
24 lines
585 B
JavaScript
// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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// Flags: --allow-natives-syntax
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function f(o) {
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// The spread after the CloneObject IC shouldn't crash when trying to write a
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// double value to a field created by CloneObject.
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return {...o, ...{a:1.4}};
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}
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%EnsureFeedbackVectorForFunction(f);
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var o = {};
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// Train the CloneObject IC with a Double field.
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o.a = 1.5;
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f(o);
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f(o);
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f(o);
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// Change the source map to have a Tagged field.
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o.a = undefined;
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f(o);
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