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| 1 // Copyright 2015 the V8 project authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Flags: --allow-natives-syntax --expose-debug-as debug | |
| 6 | |
| 7 "use strict"; | |
| 8 | |
| 9 // Test non-JSObject receiver. | |
| 10 function f(o) { | |
| 11 var result = []; | |
| 12 for (var i in o) { | |
| 13 result.push(i); | |
| 14 } | |
| 15 return result; | |
| 16 } | |
| 17 | |
| 18 assertEquals(["0"], f("a")); | |
| 19 assertEquals(["0"], f("a")); | |
| 20 | |
| 21 %OptimizeFunctionOnNextCall(f); | |
| 22 assertEquals(["0","1","2"], f("bla")); | |
| 23 | |
| 24 // Test the lazy deopt points. | |
| 25 var keys = ["a", "b", "c", "d"]; | |
| 26 var property_descriptor_keys = []; | |
| 27 var deopt_enum = false; | |
| 28 var deopt_property_descriptor = false; | |
| 29 | |
| 30 var handler = { | |
| 31 ownKeys() { | |
| 32 if (deopt_enum) { | |
| 33 %DeoptimizeFunction(f2); | |
| 34 deopt_enum = false; | |
| 35 } | |
| 36 return keys; | |
| 37 }, | |
| 38 getOwnPropertyDescriptor(target, k) { | |
| 39 if (deopt_property_descriptor) { | |
| 40 %DeoptimizeFunction(f2); | |
| 41 deopt_property_descriptor = false; | |
| 42 } | |
| 43 property_descriptor_keys.push(k); | |
| 44 return { enumerable: true, configurable: true } | |
| 45 }, | |
| 46 }; | |
| 47 | |
| 48 | |
| 49 var proxy = new Proxy({}, handler); | |
| 50 var o = {__proto__: proxy}; | |
| 51 | |
| 52 function f2(o) { | |
| 53 var result = []; | |
| 54 for (var i in o) { | |
| 55 result.push(i); | |
| 56 } | |
| 57 return result; | |
| 58 } | |
| 59 | |
| 60 function check_f2() { | |
| 61 assertEquals(keys, f2(o)); | |
| 62 assertEquals(keys, property_descriptor_keys); | |
| 63 property_descriptor_keys.length = 0; | |
| 64 } | |
| 65 | |
| 66 check_f2(); | |
| 67 check_f2(); | |
| 68 | |
| 69 // Test lazy deopt after ForInEnumerate | |
| 70 %OptimizeFunctionOnNextCall(f2); | |
| 71 deopt_enum = true; | |
| 72 check_f2(); | |
| 73 | |
| 74 // Test lazy deopt after FILTER_KEY | |
| 75 %OptimizeFunctionOnNextCall(f2); | |
| 76 deopt_property_descriptor = true; | |
| 77 check_f2(); | |
| 78 | |
| 79 | |
| 80 function f3(o) { | |
| 81 for (var i in o) { | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 f3({__proto__:{x:1}}); | |
| 86 f3({__proto__:{x:1}}); | |
| 87 | |
| 88 %OptimizeFunctionOnNextCall(f3); | |
| 89 f3(undefined); | |
| 90 f3(null); | |
| 91 | |
| 92 // Reliable repro for an issue previously flushed out by GC stress. | |
| 93 var p = {x: "x"} | |
| 94 | |
| 95 function f4(o, p) { | |
| 96 var result = []; | |
| 97 for (var i in o) { | |
| 98 var j = p.x + "str"; | |
| 99 result.push(i); | |
| 100 } | |
| 101 return result; | |
| 102 } | |
| 103 | |
| 104 function check_f4() { | |
| 105 assertEquals(keys, f4(o, p)); | |
| 106 assertEquals(keys, property_descriptor_keys); | |
| 107 property_descriptor_keys.length = 0; | |
| 108 } | |
| 109 | |
| 110 check_f4(); | |
| 111 check_f4(); | |
| 112 | |
| 113 %OptimizeFunctionOnNextCall(f4); | |
| 114 | |
| 115 p.y = "y"; // Change map, cause eager deopt. | |
| 116 check_f4(); | |
| 117 | |
| 118 // Repro for Turbofan equivalent. | |
| 119 var x; | |
| 120 var count = 0; | |
| 121 | |
| 122 var Debug = debug.Debug; | |
| 123 | |
| 124 function listener(event, exec_state, event_data, data) { | |
| 125 if (event == Debug.DebugEvent.Break) { | |
| 126 %DeoptimizeFunction(f5); | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 var handler3 = { | |
| 131 ownKeys() { return ["a", "b"] }, | |
| 132 getOwnPropertyDescriptor(target, k) { | |
| 133 if (k == "a") count++; | |
| 134 if (x) %ScheduleBreak() | |
| 135 return { enumerable: true, configurable: true } | |
| 136 } | |
| 137 }; | |
| 138 | |
| 139 var proxy3 = new Proxy({}, handler3); | |
| 140 var o3 = {__proto__: proxy3}; | |
| 141 | |
| 142 function f5() { | |
| 143 for (var p in o3) { | |
| 144 print(p); | |
| 145 } | |
| 146 } | |
| 147 | |
| 148 x = false; | |
| 149 | |
| 150 f5(); f5(); f5(); | |
| 151 %OptimizeFunctionOnNextCall(f5); | |
| 152 x = true; | |
| 153 count = 0; | |
| 154 Debug.setListener(listener); | |
| 155 f5(); | |
| 156 Debug.setListener(null); | |
| 157 assertEquals(1, count); | |
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Chromium Code Reviews
Issue 2480223002:
[debugger] Migrate more debugger tests to inspector (Closed)
