Line data    Source code

       1             : // Copyright 2018 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_OBJECTS_CELL_H_
       6             : #define V8_OBJECTS_CELL_H_
       7             : 
       8             : #include "src/objects/heap-object.h"
       9             : 
      10             : // Has to be the last include (doesn't have include guards):
      11             : #include "src/objects/object-macros.h"
      12             : 
      13             : namespace v8 {
      14             : namespace internal {
      15             : 
      16             : class Cell : public HeapObject {
      17             :  public:
      18             :   // [value]: value of the cell.
      19             :   DECL_ACCESSORS(value, Object)
      20             : 
      21             :   DECL_CAST(Cell)
      22             : 
      23             :   static inline Cell FromValueAddress(Address value);
      24             : 
      25           0 :   inline Address ValueAddress() { return address() + kValueOffset; }
      26             : 
      27             :   // Dispatched behavior.
      28             :   DECL_PRINTER(Cell)
      29             :   DECL_VERIFIER(Cell)
      30             : 
      31             :   // Layout description.
      32             : #define CELL_FIELDS(V)         \
      33             :   V(kValueOffset, kTaggedSize) \
      34             :   /* Total size. */            \
      35             :   V(kSize, 0)
      36             : 
      37             :   DEFINE_FIELD_OFFSET_CONSTANTS(HeapObject::kHeaderSize, CELL_FIELDS)
      38             : #undef CELL_FIELDS
      39             : 
      40             :   typedef FixedBodyDescriptor<kValueOffset, kSize, kSize> BodyDescriptor;
      41             : 
      42      634930 :   OBJECT_CONSTRUCTORS(Cell, HeapObject);
      43             : };
      44             : 
      45             : }  // namespace internal
      46             : }  // namespace v8
      47             : 
      48             : #include "src/objects/object-macros-undef.h"
      49             : 
      50             : #endif  // V8_OBJECTS_CELL_H_