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f579e11940
PR-URL: https://github.com/nodejs/node/pull/26685 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>
34 lines
915 B
JavaScript
34 lines
915 B
JavaScript
// Copyright 2015 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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// Flags: --allow-natives-syntax
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assertEquals(0, "".length);
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assertEquals(1, "a".length);
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assertEquals(2, ("a" + "b").length);
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function id(x) { return x; }
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function f1(x) {
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return x.length;
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}
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%PrepareFunctionForOptimization(f1);
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assertEquals(0, f1(""));
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assertEquals(1, f1("a"));
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%OptimizeFunctionOnNextCall(f1);
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assertEquals(2, f1("a" + "b"));
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assertEquals(3, f1(id("a") + id("b" + id("c"))))
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function f2(x, y, z) {
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x = x ? "" + y : "" + z;
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return x.length;
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}
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%PrepareFunctionForOptimization(f2);
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assertEquals(0, f2(true, "", "a"));
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assertEquals(1, f2(false, "", "a"));
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%OptimizeFunctionOnNextCall(f2);
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assertEquals(0, f2(true, "", "a"));
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assertEquals(1, f2(false, "", "a"));
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assertEquals(3, f2(true, id("a") + id("b" + id("c")), ""));
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