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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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40 | 40 |
41 | 41 |
42 TEST(ObjectHashTable) { | 42 TEST(ObjectHashTable) { |
43 LocalContext context; | 43 LocalContext context; |
44 Isolate* isolate = CcTest::i_isolate(); | 44 Isolate* isolate = CcTest::i_isolate(); |
45 Factory* factory = isolate->factory(); | 45 Factory* factory = isolate->factory(); |
46 v8::HandleScope scope(context->GetIsolate()); | 46 v8::HandleScope scope(context->GetIsolate()); |
47 Handle<ObjectHashTable> table = factory->NewObjectHashTable(23); | 47 Handle<ObjectHashTable> table = factory->NewObjectHashTable(23); |
48 Handle<JSObject> a = factory->NewJSArray(7); | 48 Handle<JSObject> a = factory->NewJSArray(7); |
49 Handle<JSObject> b = factory->NewJSArray(11); | 49 Handle<JSObject> b = factory->NewJSArray(11); |
50 table = PutIntoObjectHashTable(table, a, b); | 50 table = ObjectHashTable::Put(table, a, b); |
51 CHECK_EQ(table->NumberOfElements(), 1); | 51 CHECK_EQ(table->NumberOfElements(), 1); |
52 CHECK_EQ(table->Lookup(*a), *b); | 52 CHECK_EQ(table->Lookup(*a), *b); |
53 CHECK_EQ(table->Lookup(*b), CcTest::heap()->the_hole_value()); | 53 CHECK_EQ(table->Lookup(*b), CcTest::heap()->the_hole_value()); |
54 | 54 |
55 // Keys still have to be valid after objects were moved. | 55 // Keys still have to be valid after objects were moved. |
56 CcTest::heap()->CollectGarbage(NEW_SPACE); | 56 CcTest::heap()->CollectGarbage(NEW_SPACE); |
57 CHECK_EQ(table->NumberOfElements(), 1); | 57 CHECK_EQ(table->NumberOfElements(), 1); |
58 CHECK_EQ(table->Lookup(*a), *b); | 58 CHECK_EQ(table->Lookup(*a), *b); |
59 CHECK_EQ(table->Lookup(*b), CcTest::heap()->the_hole_value()); | 59 CHECK_EQ(table->Lookup(*b), CcTest::heap()->the_hole_value()); |
60 | 60 |
61 // Keys that are overwritten should not change number of elements. | 61 // Keys that are overwritten should not change number of elements. |
62 table = PutIntoObjectHashTable(table, a, factory->NewJSArray(13)); | 62 table = ObjectHashTable::Put(table, a, factory->NewJSArray(13)); |
63 CHECK_EQ(table->NumberOfElements(), 1); | 63 CHECK_EQ(table->NumberOfElements(), 1); |
64 CHECK_NE(table->Lookup(*a), *b); | 64 CHECK_NE(table->Lookup(*a), *b); |
65 | 65 |
66 // Keys mapped to the hole should be removed permanently. | 66 // Keys mapped to the hole should be removed permanently. |
67 table = PutIntoObjectHashTable(table, a, factory->the_hole_value()); | 67 table = ObjectHashTable::Put(table, a, factory->the_hole_value()); |
68 CHECK_EQ(table->NumberOfElements(), 0); | 68 CHECK_EQ(table->NumberOfElements(), 0); |
69 CHECK_EQ(table->NumberOfDeletedElements(), 1); | 69 CHECK_EQ(table->NumberOfDeletedElements(), 1); |
70 CHECK_EQ(table->Lookup(*a), CcTest::heap()->the_hole_value()); | 70 CHECK_EQ(table->Lookup(*a), CcTest::heap()->the_hole_value()); |
71 | 71 |
72 // Keys should map back to their respective values and also should get | 72 // Keys should map back to their respective values and also should get |
73 // an identity hash code generated. | 73 // an identity hash code generated. |
74 for (int i = 0; i < 100; i++) { | 74 for (int i = 0; i < 100; i++) { |
75 Handle<JSReceiver> key = factory->NewJSArray(7); | 75 Handle<JSReceiver> key = factory->NewJSArray(7); |
76 Handle<JSObject> value = factory->NewJSArray(11); | 76 Handle<JSObject> value = factory->NewJSArray(11); |
77 table = PutIntoObjectHashTable(table, key, value); | 77 table = ObjectHashTable::Put(table, key, value); |
78 CHECK_EQ(table->NumberOfElements(), i + 1); | 78 CHECK_EQ(table->NumberOfElements(), i + 1); |
79 CHECK_NE(table->FindEntry(*key), ObjectHashTable::kNotFound); | 79 CHECK_NE(table->FindEntry(*key), ObjectHashTable::kNotFound); |
80 CHECK_EQ(table->Lookup(*key), *value); | 80 CHECK_EQ(table->Lookup(*key), *value); |
81 CHECK(key->GetIdentityHash(OMIT_CREATION)->ToObjectChecked()->IsSmi()); | 81 CHECK(key->GetIdentityHash()->IsSmi()); |
82 } | 82 } |
83 | 83 |
84 // Keys never added to the map which already have an identity hash | 84 // Keys never added to the map which already have an identity hash |
85 // code should not be found. | 85 // code should not be found. |
86 for (int i = 0; i < 100; i++) { | 86 for (int i = 0; i < 100; i++) { |
87 Handle<JSReceiver> key = factory->NewJSArray(7); | 87 Handle<JSReceiver> key = factory->NewJSArray(7); |
88 CHECK(key->GetIdentityHash(ALLOW_CREATION)->ToObjectChecked()->IsSmi()); | 88 CHECK(JSReceiver::GetOrCreateIdentityHash(key)->IsSmi()); |
89 CHECK_EQ(table->FindEntry(*key), ObjectHashTable::kNotFound); | 89 CHECK_EQ(table->FindEntry(*key), ObjectHashTable::kNotFound); |
90 CHECK_EQ(table->Lookup(*key), CcTest::heap()->the_hole_value()); | 90 CHECK_EQ(table->Lookup(*key), CcTest::heap()->the_hole_value()); |
91 CHECK(key->GetIdentityHash(OMIT_CREATION)->ToObjectChecked()->IsSmi()); | 91 CHECK(key->GetIdentityHash()->IsSmi()); |
92 } | 92 } |
93 | 93 |
94 // Keys that don't have an identity hash should not be found and also | 94 // Keys that don't have an identity hash should not be found and also |
95 // should not get an identity hash code generated. | 95 // should not get an identity hash code generated. |
96 for (int i = 0; i < 100; i++) { | 96 for (int i = 0; i < 100; i++) { |
97 Handle<JSReceiver> key = factory->NewJSArray(7); | 97 Handle<JSReceiver> key = factory->NewJSArray(7); |
98 CHECK_EQ(table->Lookup(*key), CcTest::heap()->the_hole_value()); | 98 CHECK_EQ(table->Lookup(*key), CcTest::heap()->the_hole_value()); |
99 CHECK_EQ(key->GetIdentityHash(OMIT_CREATION), | 99 CHECK_EQ(key->GetIdentityHash(), |
100 CcTest::heap()->undefined_value()); | 100 CcTest::heap()->undefined_value()); |
101 } | 101 } |
102 } | 102 } |
103 | 103 |
104 | 104 |
105 class ObjectHashTableTest: public ObjectHashTable { | 105 class ObjectHashTableTest: public ObjectHashTable { |
106 public: | 106 public: |
107 void insert(int entry, int key, int value) { | 107 void insert(int entry, int key, int value) { |
108 set(EntryToIndex(entry), Smi::FromInt(key)); | 108 set(EntryToIndex(entry), Smi::FromInt(key)); |
109 set(EntryToIndex(entry) + 1, Smi::FromInt(value)); | 109 set(EntryToIndex(entry) + 1, Smi::FromInt(value)); |
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168 key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1")); | 168 key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1")); |
169 key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2")); | 169 key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2")); |
170 key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3")); | 170 key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3")); |
171 | 171 |
172 // Simulate a full heap so that generating an identity hash code | 172 // Simulate a full heap so that generating an identity hash code |
173 // in subsequent calls will request GC. | 173 // in subsequent calls will request GC. |
174 SimulateFullSpace(CcTest::heap()->new_space()); | 174 SimulateFullSpace(CcTest::heap()->new_space()); |
175 SimulateFullSpace(CcTest::heap()->old_pointer_space()); | 175 SimulateFullSpace(CcTest::heap()->old_pointer_space()); |
176 | 176 |
177 // Calling Contains() should not cause GC ever. | 177 // Calling Contains() should not cause GC ever. |
178 int gc_count = isolate->heap()->gc_count(); | |
178 CHECK(!table->Contains(*key)); | 179 CHECK(!table->Contains(*key)); |
180 CHECK(gc_count == isolate->heap()->gc_count()); | |
179 | 181 |
180 // Calling Remove() should not cause GC ever. | 182 // Calling Remove() will not cause GC in this case. |
181 CHECK(!table->Remove(*key)->IsFailure()); | 183 table = ObjectHashSet::Remove(table, key); |
184 CHECK(gc_count == isolate->heap()->gc_count()); | |
182 | 185 |
183 // Calling Add() should request GC by returning a failure. | 186 // Calling Add() should cause GC. |
184 CHECK(table->Add(*key)->IsRetryAfterGC()); | 187 table = ObjectHashSet::Add(table, key); |
188 CHECK(gc_count < isolate->heap()->gc_count()); | |
185 } | 189 } |
186 #endif | 190 #endif |
187 | 191 |
188 | 192 |
189 #ifdef DEBUG | 193 #ifdef DEBUG |
190 TEST(ObjectHashTableCausesGC) { | 194 TEST(ObjectHashTableCausesGC) { |
191 i::FLAG_stress_compaction = false; | 195 i::FLAG_stress_compaction = false; |
192 LocalContext context; | 196 LocalContext context; |
193 Isolate* isolate = CcTest::i_isolate(); | 197 Isolate* isolate = CcTest::i_isolate(); |
194 Factory* factory = isolate->factory(); | 198 Factory* factory = isolate->factory(); |
195 v8::HandleScope scope(context->GetIsolate()); | 199 v8::HandleScope scope(context->GetIsolate()); |
196 Handle<ObjectHashTable> table = factory->NewObjectHashTable(1); | 200 Handle<ObjectHashTable> table = factory->NewObjectHashTable(1); |
197 Handle<JSObject> key = factory->NewJSArray(0); | 201 Handle<JSObject> key = factory->NewJSArray(0); |
198 v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key); | 202 v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key); |
199 | 203 |
200 // Force allocation of hash table backing store for hidden properties. | 204 // Force allocation of hash table backing store for hidden properties. |
201 key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1")); | 205 key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1")); |
202 key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2")); | 206 key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2")); |
203 key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3")); | 207 key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3")); |
204 | 208 |
205 // Simulate a full heap so that generating an identity hash code | 209 // Simulate a full heap so that generating an identity hash code |
206 // in subsequent calls will request GC. | 210 // in subsequent calls will request GC. |
207 SimulateFullSpace(CcTest::heap()->new_space()); | 211 SimulateFullSpace(CcTest::heap()->new_space()); |
208 SimulateFullSpace(CcTest::heap()->old_pointer_space()); | 212 SimulateFullSpace(CcTest::heap()->old_pointer_space()); |
209 | 213 |
210 // Calling Lookup() should not cause GC ever. | 214 // Calling Lookup() should not cause GC ever. |
211 CHECK(table->Lookup(*key)->IsTheHole()); | 215 CHECK(table->Lookup(*key)->IsTheHole()); |
212 | 216 |
217 int gc_count = isolate->heap()->gc_count(); | |
213 // Calling Put() should request GC by returning a failure. | 218 // Calling Put() should request GC by returning a failure. |
Michael Starzinger
2013/11/04 17:58:58
nit: Let's move the comment up one line, easier to
rafaelw
2013/11/05 09:56:54
Done.
| |
214 CHECK(table->Put(*key, *key)->IsRetryAfterGC()); | 219 ObjectHashTable::Put(table, key, key); |
220 CHECK(gc_count < isolate->heap()->gc_count()); | |
215 } | 221 } |
216 #endif | 222 #endif |
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