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Issue 2476303003: 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
29 Debug = debug.Debug;
30
31 function dummy(x) {
32 return x + 100;
33 }
34
35 function create_closure() {
36 var f = function(arg) {
37 if (arg) { %DeoptimizeFunction(f); }
38 var a = Array(10);
39 for (var i = 0; i < a.length; i++) {
40 a[i] = i;
41 }
42 }
43 return f;
44 }
45
46 var c = create_closure();
47 c();
48
49 // c CallIC state now has custom Array handler installed.
50
51 // Turn on the debugger.
52 Debug.setListener(function () {});
53
54 var d = create_closure();
55 %OptimizeFunctionOnNextCall(d);
56 // Thanks to the debugger, we recreate the full code too. We deopt and run
57 // it, stomping on the unexpected AllocationSite in the type vector slot.
58 d(true);
59
60 // CallIC in c misinterprets type vector slot contents as an AllocationSite,
61 // corrupting the heap.
62 c();
63
64 // CallIC MISS - crash due to corruption.
65 dummy();
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