45 lines
937 B
JavaScript
45 lines
937 B
JavaScript
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// Copyright 2022 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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let badCaseRan = false;
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function main(i) {
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class B {
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m() {
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return super.nodeType; // The access site (megamorphic)
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}
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}
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let node = new d8.dom.Div(); // API object
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node['a' + i] = 1; // Create a new shape
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if (i < 0x100 - 1) {
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B.prototype.__proto__ = {};
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} else {
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B.prototype.__proto__ = node; // Lookup start object == API object
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}
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let b = new B();
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b.x0 = 1;
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b.x1 = 2;
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b.x2 = 3;
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b.x3 = 4;
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node.nodeType; // Create a handler for loading from the API object
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let caught = false;
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try {
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b.m();
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} catch {
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caught = true;
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}
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if (i < 0x100 - 1) {
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assertFalse(caught);
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} else {
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assertTrue(caught);
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badCaseRan = true;
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}
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}
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for (let i = 0; i < 0x100; i++) {
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main(i);
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}
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assertTrue(badCaseRan);
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