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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 175 v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key); | 175 v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key); |
| 176 | 176 |
| 177 // Force allocation of hash table backing store for hidden properties. | 177 // Force allocation of hash table backing store for hidden properties. |
| 178 key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1")); | 178 key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1")); |
| 179 key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2")); | 179 key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2")); |
| 180 key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3")); | 180 key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3")); |
| 181 | 181 |
| 182 // Simulate a full heap so that generating an identity hash code | 182 // Simulate a full heap so that generating an identity hash code |
| 183 // in subsequent calls will request GC. | 183 // in subsequent calls will request GC. |
| 184 SimulateFullSpace(CcTest::heap()->new_space()); | 184 SimulateFullSpace(CcTest::heap()->new_space()); |
| 185 SimulateFullSpace(CcTest::heap()->old_pointer_space()); | 185 SimulateFullSpace(CcTest::heap()->old_space()); |
| 186 | 186 |
| 187 // Calling Contains() should not cause GC ever. | 187 // Calling Contains() should not cause GC ever. |
| 188 int gc_count = isolate->heap()->gc_count(); | 188 int gc_count = isolate->heap()->gc_count(); |
| 189 CHECK(!table->Contains(key)); | 189 CHECK(!table->Contains(key)); |
| 190 CHECK(gc_count == isolate->heap()->gc_count()); | 190 CHECK(gc_count == isolate->heap()->gc_count()); |
| 191 | 191 |
| 192 // Calling Remove() will not cause GC in this case. | 192 // Calling Remove() will not cause GC in this case. |
| 193 bool was_present = false; | 193 bool was_present = false; |
| 194 table = HashSet::Remove(table, key, &was_present); | 194 table = HashSet::Remove(table, key, &was_present); |
| 195 CHECK(!was_present); | 195 CHECK(!was_present); |
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| 221 v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key); | 221 v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key); |
| 222 | 222 |
| 223 // Force allocation of hash table backing store for hidden properties. | 223 // Force allocation of hash table backing store for hidden properties. |
| 224 key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1")); | 224 key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1")); |
| 225 key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2")); | 225 key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2")); |
| 226 key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3")); | 226 key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3")); |
| 227 | 227 |
| 228 // Simulate a full heap so that generating an identity hash code | 228 // Simulate a full heap so that generating an identity hash code |
| 229 // in subsequent calls will request GC. | 229 // in subsequent calls will request GC. |
| 230 SimulateFullSpace(CcTest::heap()->new_space()); | 230 SimulateFullSpace(CcTest::heap()->new_space()); |
| 231 SimulateFullSpace(CcTest::heap()->old_pointer_space()); | 231 SimulateFullSpace(CcTest::heap()->old_space()); |
| 232 | 232 |
| 233 // Calling Lookup() should not cause GC ever. | 233 // Calling Lookup() should not cause GC ever. |
| 234 CHECK(table->Lookup(key)->IsTheHole()); | 234 CHECK(table->Lookup(key)->IsTheHole()); |
| 235 | 235 |
| 236 // Calling Put() should request GC by returning a failure. | 236 // Calling Put() should request GC by returning a failure. |
| 237 int gc_count = isolate->heap()->gc_count(); | 237 int gc_count = isolate->heap()->gc_count(); |
| 238 HashMap::Put(table, key, key); | 238 HashMap::Put(table, key, key); |
| 239 CHECK(gc_count < isolate->heap()->gc_count()); | 239 CHECK(gc_count < isolate->heap()->gc_count()); |
| 240 } | 240 } |
| 241 | 241 |
| 242 | 242 |
| 243 TEST(ObjectHashTableCausesGC) { | 243 TEST(ObjectHashTableCausesGC) { |
| 244 i::FLAG_stress_compaction = false; | 244 i::FLAG_stress_compaction = false; |
| 245 LocalContext context; | 245 LocalContext context; |
| 246 v8::HandleScope scope(context->GetIsolate()); | 246 v8::HandleScope scope(context->GetIsolate()); |
| 247 Isolate* isolate = CcTest::i_isolate(); | 247 Isolate* isolate = CcTest::i_isolate(); |
| 248 TestHashMapCausesGC(ObjectHashTable::New(isolate, 1)); | 248 TestHashMapCausesGC(ObjectHashTable::New(isolate, 1)); |
| 249 TestHashMapCausesGC(isolate->factory()->NewOrderedHashMap()); | 249 TestHashMapCausesGC(isolate->factory()->NewOrderedHashMap()); |
| 250 } | 250 } |
| 251 #endif | 251 #endif |
| 252 | 252 |
| 253 | 253 |
| 254 } | 254 } |
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