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Issue 2480283002: Revert of [debugger] Migrate more debugger tests to inspector (Closed)
Patch Set: Created 4 years, 1 month ago
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1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 // Flags: --expose-debug-as debug --allow-natives-syntax
29
30 Debug = debug.Debug;
31
32 function dummy(x) {
33 return x + 100;
34 }
35
36 function create_closure() {
37 var f = function(arg) {
38 if (arg) { %DeoptimizeFunction(f); }
39 var a = Array(10);
40 for (var i = 0; i < a.length; i++) {
41 a[i] = i;
42 }
43 }
44 return f;
45 }
46
47 var c = create_closure();
48 c();
49
50 // c CallIC state now has custom Array handler installed.
51
52 // Turn on the debugger.
53 Debug.setListener(function () {});
54
55 var d = create_closure();
56 %OptimizeFunctionOnNextCall(d);
57 // Thanks to the debugger, we recreate the full code too. We deopt and run
58 // it, stomping on the unexpected AllocationSite in the type vector slot.
59 d(true);
60
61 // CallIC in c misinterprets type vector slot contents as an AllocationSite,
62 // corrupting the heap.
63 c();
64
65 // CallIC MISS - crash due to corruption.
66 dummy();
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