# Type

---

## Object Definitions

```c
#define KPL_TYPE_BLOCK_ARRAY_SIZE UINT16_MAX

#define KPL_TYPE_BLOCKS_SIZE UINT16_MAX

typedef struct {
    uint16_t block_index, array_index;
} kpl_type_ptr;

static const kpl_type_ptr kpl_type_ptr_null = { UINT16_MAX, UINT16_MAX };

typedef enum : uint16_t {
    // ...
} kpl_type_template;

typedef enum : uint16_t {
    CONST   = 1 << 0
    EMPTY   = 1 << 1,
    REF     = 1 << 2,
    GC      = 1 << 3
} kpl_type_flags;

typedef union {
    // ...
} kpl_type_body;

typedef struct {
    kpl_type_template template;
    kpl_type_flags flags;
    _Atomic int32_t ref_count;
    kpl_type_ptr self, prev, next, parent;
    kpl_type_body body;
} kpl_type;

static size_t type_array_block_index;

static kpl_type *type_array_blocks[KPL_TYPE_BLOCKS_SIZE];

static kpl_type_ptr type_pool_head;
```