Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1 | // Copyright 2016 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 | #ifndef V8_FIELD_TYPE_H_ |
| 6 | #define V8_FIELD_TYPE_H_ |
| 7 | |
| 8 | #include "src/handles.h" |
| 9 | #include "src/objects.h" |
| 10 | #include "src/ostreams.h" |
| 11 | |
| 12 | namespace v8 { |
| 13 | namespace internal { |
| 14 | |
| 15 | class FieldType : public Object { |
| 16 | public: |
| 17 | static FieldType* None(); |
| 18 | static FieldType* Any(); |
| 19 | static Handle<FieldType> None(Isolate* isolate); |
| 20 | static Handle<FieldType> Any(Isolate* isolate); |
| 21 | static FieldType* Class(i::Map* map); |
| 22 | static Handle<FieldType> Class(i::Handle<i::Map> map, Isolate* isolate); |
| 23 | static FieldType* cast(Object* object); |
| 24 | |
| 25 | bool NowContains(Object* value) { |
| 26 | if (this == Any()) return true; |
| 27 | if (this == None()) return false; |
| 28 | if (!value->IsHeapObject()) return false; |
| 29 | return HeapObject::cast(value)->map() == Map::cast(this); |
| 30 | } |
| 31 | |
| 32 | bool NowContains(Handle<Object> value) { return NowContains(*value); } |
| 33 | |
| 34 | bool IsClass(); |
| 35 | Handle<i::Map> AsClass(); |
| 36 | bool IsNone() { return this == None(); } |
| 37 | bool IsAny() { return this == Any(); } |
| 38 | bool NowStable(); |
| 39 | bool NowIs(FieldType* other); |
| 40 | bool NowIs(Handle<FieldType> other); |
| 41 | Type* Convert(Zone* zone); |
| 42 | |
| 43 | void PrintTo(std::ostream& os); |
| 44 | }; |
| 45 | |
| 46 | } // namespace internal |
| 47 | } // namespace v8 |
| 48 | |
| 49 | #endif // V8_FIELD_TYPE_H_ |