| // Copyright 2016 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_FIELD_TYPE_H_ |
| #define V8_FIELD_TYPE_H_ |
| |
| #include "src/objects.h" |
| #include "src/objects/heap-object.h" |
| #include "src/objects/map.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| template <typename T> |
| class Handle; |
| |
| class FieldType : public Object { |
| public: |
| static FieldType None(); |
| static FieldType Any(); |
| static Handle<FieldType> None(Isolate* isolate); |
| static Handle<FieldType> Any(Isolate* isolate); |
| static FieldType Class(Map map); |
| static Handle<FieldType> Class(Handle<Map> map, Isolate* isolate); |
| static FieldType cast(Object object); |
| static FieldType unchecked_cast(Object object) { |
| return FieldType(object.ptr()); |
| } |
| |
| bool NowContains(Object value) const; |
| |
| bool NowContains(Handle<Object> value) const { return NowContains(*value); } |
| |
| bool IsClass() const; |
| Map AsClass() const; |
| bool IsNone() const { return *this == None(); } |
| bool IsAny() const { return *this == Any(); } |
| bool NowStable() const; |
| bool NowIs(FieldType other) const; |
| bool NowIs(Handle<FieldType> other) const; |
| |
| void PrintTo(std::ostream& os) const; |
| |
| FieldType* operator->() { return this; } |
| const FieldType* operator->() const { return this; } |
| |
| private: |
| explicit constexpr FieldType(Address ptr) : Object(ptr) {} |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_FIELD_TYPE_H_ |