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PR-URL: https://github.com/nodejs/node/pull/18453 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Yang Guo <yangguo@chromium.org> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
72 lines
1.7 KiB
JavaScript
72 lines
1.7 KiB
JavaScript
// Copyright 2017 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 --expose-externalize-string
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(function() {
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function foo(s) {
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return "abcdefghijklm" + s;
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}
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assertTrue(isOneByteString(foo("0")));
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assertTrue(isOneByteString(foo("0")));
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(isOneByteString(foo("0")));
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})();
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(function() {
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function foo(s) {
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return s + "abcdefghijklm";
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}
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assertTrue(isOneByteString(foo("0")));
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assertTrue(isOneByteString(foo("0")));
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(isOneByteString(foo("0")));
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})();
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(function() {
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function foo(s) {
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return "abcdefghijklm" + s;
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}
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assertFalse(isOneByteString(foo("\u1234")));
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assertFalse(isOneByteString(foo("\u1234")));
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(isOneByteString(foo("\u1234")));
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})();
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(function() {
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function foo(s) {
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return s + "abcdefghijklm";
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}
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assertFalse(isOneByteString(foo("\u1234")));
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assertFalse(isOneByteString(foo("\u1234")));
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(isOneByteString(foo("\u1234")));
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})();
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(function() {
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function foo(s) {
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return "abcdefghijkl\u1234" + s;
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}
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assertFalse(isOneByteString(foo("0")));
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assertFalse(isOneByteString(foo("0")));
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(isOneByteString(foo("0")));
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})();
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(function() {
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function foo(s) {
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return s + "abcdefghijkl\u1234";
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}
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assertFalse(isOneByteString(foo("0")));
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assertFalse(isOneByteString(foo("0")));
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(isOneByteString(foo("0")));
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})();
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