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Side by Side Diff: src/compilation-dependencies.h

Issue 1092043002: Protect the emptiness of Array prototype elements with a PropertyCell. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Try again :p. Created 5 years, 8 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef V8_DEPENDENCIES_H_ 5 #ifndef V8_DEPENDENCIES_H_
6 #define V8_DEPENDENCIES_H_ 6 #define V8_DEPENDENCIES_H_
7 7
8 namespace v8 { 8 namespace v8 {
9 namespace internal { 9 namespace internal {
10 10
11 // Collects dependencies for this compilation, e.g. assumptions about 11 // Collects dependencies for this compilation, e.g. assumptions about
12 // stable maps, constant globals, etc. 12 // stable maps, constant globals, etc.
13 class CompilationDependencies { 13 class CompilationDependencies {
14 public: 14 public:
15 CompilationDependencies(Isolate* isolate, Zone* zone) 15 CompilationDependencies(Isolate* isolate, Zone* zone)
16 : isolate_(isolate), 16 : isolate_(isolate),
17 zone_(zone), 17 zone_(zone),
18 object_wrapper_(Handle<Foreign>::null()), 18 object_wrapper_(Handle<Foreign>::null()),
19 aborted_(false) { 19 aborted_(false) {
20 std::fill_n(groups_, DependentCode::kGroupCount, nullptr); 20 std::fill_n(groups_, DependentCode::kGroupCount, nullptr);
21 } 21 }
22 22
23 void Insert(DependentCode::DependencyGroup group, Handle<HeapObject> handle); 23 void Insert(DependentCode::DependencyGroup group, Handle<HeapObject> handle);
24 24
25 void AssumeInitialMapCantChange(Handle<Map> map) { 25 void AssumeInitialMapCantChange(Handle<Map> map) {
26 Insert(DependentCode::kInitialMapChangedGroup, map); 26 Insert(DependentCode::kInitialMapChangedGroup, map);
27 } 27 }
28 void AssumeElementsCantBeAdded(Handle<Map> map) {
29 Insert(DependentCode::kElementsCantBeAddedGroup, map);
30 }
31 void AssumeFieldType(Handle<Map> map) { 28 void AssumeFieldType(Handle<Map> map) {
32 Insert(DependentCode::kFieldTypeGroup, map); 29 Insert(DependentCode::kFieldTypeGroup, map);
33 } 30 }
34 void AssumePropertyCell(Handle<PropertyCell> cell) { 31 void AssumePropertyCell(Handle<PropertyCell> cell) {
35 Insert(DependentCode::kPropertyCellChangedGroup, cell); 32 Insert(DependentCode::kPropertyCellChangedGroup, cell);
36 } 33 }
37 void AssumeTenuringDecision(Handle<AllocationSite> site) { 34 void AssumeTenuringDecision(Handle<AllocationSite> site) {
38 Insert(DependentCode::kAllocationSiteTenuringChangedGroup, site); 35 Insert(DependentCode::kAllocationSiteTenuringChangedGroup, site);
39 } 36 }
40 void AssumeTransitionStable(Handle<AllocationSite> site); 37 void AssumeTransitionStable(Handle<AllocationSite> site);
(...skipping 17 matching lines...) Expand all
58 bool aborted_; 55 bool aborted_;
59 ZoneList<Handle<HeapObject> >* groups_[DependentCode::kGroupCount]; 56 ZoneList<Handle<HeapObject> >* groups_[DependentCode::kGroupCount];
60 57
61 DependentCode* Get(Handle<Object> object); 58 DependentCode* Get(Handle<Object> object);
62 void Set(Handle<Object> object, Handle<DependentCode> dep); 59 void Set(Handle<Object> object, Handle<DependentCode> dep);
63 }; 60 };
64 } 61 }
65 } // namespace v8::internal 62 } // namespace v8::internal
66 63
67 #endif // V8_DEPENDENCIES_H_ 64 #endif // V8_DEPENDENCIES_H_
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