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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
91 lines
3.0 KiB
JavaScript
91 lines
3.0 KiB
JavaScript
// Copyright 2012 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --allow-natives-syntax
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function ToDictionaryMode(x) {
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%OptimizeObjectForAddingMultipleProperties(x, 100);
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}
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var A, B, C;
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// The initial bug report was about calling a know function...
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A = {};
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Object.defineProperty(A, "foo", { value: function() { assertUnreachable(); }});
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B = Object.create(A);
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Object.defineProperty(B, "foo", { value: function() { return 111; }});
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C = Object.create(B);
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function bar(x) { return x.foo(); }
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assertEquals(111, bar(C));
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assertEquals(111, bar(C));
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ToDictionaryMode(B);
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%OptimizeFunctionOnNextCall(bar);
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assertEquals(111, bar(C));
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// Although this was not in the initial bug report: The same for getters...
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A = {};
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Object.defineProperty(A, "baz", { get: function() { assertUnreachable(); }});
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B = Object.create(A);
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Object.defineProperty(B, "baz", { get: function() { return 111; }});
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C = Object.create(B);
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function boo(x) { return x.baz; }
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assertEquals(111, boo(C));
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assertEquals(111, boo(C));
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ToDictionaryMode(B);
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%OptimizeFunctionOnNextCall(boo);
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assertEquals(111, boo(C));
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// And once more for setters...
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A = {};
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Object.defineProperty(A, "huh", { set: function(x) { assertUnreachable(); }});
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B = Object.create(A);
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var setterValue;
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Object.defineProperty(B, "huh", { set: function(x) { setterValue = x; }});
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C = Object.create(B);
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function fuu(x) {
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setterValue = 222;
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x.huh = 111;
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return setterValue;
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}
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assertEquals(111, fuu(C));
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assertEquals(111, fuu(C));
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ToDictionaryMode(B);
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%OptimizeFunctionOnNextCall(fuu);
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assertEquals(111, fuu(C));
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