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/ast/ast-types.h" 9 #include "src/handles.h" 10 #include "src/objects.h" 11 #include "src/ostreams.h" 12 13 namespace v8 { 14 namespace internal { 15 16 class FieldType : public Object { 17 public: 18 static FieldType* None(); 19 static FieldType* Any(); 20 static Handle<FieldType> None(Isolate* isolate); 21 static Handle<FieldType> Any(Isolate* isolate); 22 static FieldType* Class(i::Map* map); 23 static Handle<FieldType> Class(i::Handle<i::Map> map, Isolate* isolate); 24 static FieldType* cast(Object* object); 25 26 bool NowContains(Object* value) { 27 if (this == Any()) return true; 28 if (this == None()) return false; 29 if (!value->IsHeapObject()) return false; 30 return HeapObject::cast(value)->map() == Map::cast(this); 31 } 32 33 bool NowContains(Handle<Object> value) { return NowContains(*value); } 34 35 bool IsClass(); 36 Handle<i::Map> AsClass(); 37 bool IsNone() { return this == None(); } 38 bool IsAny() { return this == Any(); } 39 bool NowStable(); 40 bool NowIs(FieldType* other); 41 bool NowIs(Handle<FieldType> other); 42 AstType* Convert(Zone* zone); 43 44 void PrintTo(std::ostream& os); 45 }; 46 47 } // namespace internal 48 } // namespace v8 49 50 #endif // V8_FIELD_TYPE_H_ 51
