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ant/include/object.h
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object.h
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#ifndef ANT_OBJECT_H
#define ANT_OBJECT_H
#include "types.h"
#include "sugar.h"
#include "shapes.h"
#include <utarray.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
typedef struct {
ant_value_t (*getter)(ant_t *, ant_value_t, const char *, size_t);
bool (*setter)(ant_t *, ant_value_t, const char *, size_t, ant_value_t);
bool (*deleter)(ant_t *, ant_value_t, const char *, size_t);
} ant_exotic_ops_t;
typedef struct promise_handler {
ant_value_t onFulfilled;
ant_value_t onRejected;
ant_value_t nextPromise;
struct coroutine *await_coro;
} promise_handler_t;
typedef struct {
ant_value_t value;
ant_value_t trigger_parent;
promise_handler_t inline_handler;
UT_array *handlers;
uint32_t promise_id;
uint16_t handler_count;
uint8_t state;
bool trigger_queued;
bool has_rejection_handler;
bool processing;
bool unhandled_reported;
} ant_promise_state_t;
typedef struct {
ant_value_t target;
ant_value_t handler;
bool revoked;
} ant_proxy_state_t;
typedef struct ant_object {
struct ant_object *next;
ant_value_t proto;
ant_shape_t *shape;
ant_value_t *overflow_prop;
const ant_exotic_ops_t *exotic_ops;
ant_value_t (*exotic_keys)(ant_t *, ant_value_t);
ant_promise_state_t *promise_state;
ant_proxy_state_t *proxy_state;
ant_value_t *extra_slots;
struct ant_object *gc_pending_next;
void (*finalizer)(ant_t *, struct ant_object *);
ant_value_t inobj[ANT_INOBJ_MAX_SLOTS];
struct {
void *ptr;
uint32_t tag;
} native;
union {
struct { ant_value_t *data; uint32_t len; uint32_t cap; } array;
struct { sv_closure_t *closure; } func;
struct { ant_value_t value; } data;
} u;
uint32_t prop_count;
uint32_t propref_count;
uint8_t mark_epoch;
uint8_t type_tag;
uint8_t inobj_limit;
uint8_t extra_count;
uint8_t extensible: 1;
uint8_t frozen: 1;
uint8_t sealed: 1;
uint8_t is_exotic: 1;
uint8_t is_constructor: 1;
uint8_t fast_array: 1;
uint8_t gc_permanent: 1;
uint8_t generation: 1;
uint8_t in_remember_set: 1;
bool gc_pending_rooted;
uint8_t overflow_cap;
} ant_object_t;
typedef struct {
uint8_t slot;
ant_value_t value;
} ant_extra_slot_t;
typedef struct ant_prop_ref {
ant_object_t *obj;
uint32_t slot;
bool valid;
} ant_prop_ref_t;
static inline uint32_t ant_object_inobj_limit(const ant_object_t *obj) {
if (!obj) return ANT_INOBJ_MAX_SLOTS;
uint32_t limit = obj->inobj_limit;
return (limit > ANT_INOBJ_MAX_SLOTS) ? ANT_INOBJ_MAX_SLOTS : limit;
}
static inline ant_value_t ant_object_prop_get_unchecked(const ant_object_t *obj, uint32_t slot) {
uint32_t inobj_limit = ant_object_inobj_limit(obj);
return (slot < inobj_limit)
? obj->inobj[slot]
: obj->overflow_prop[slot - inobj_limit];
}
static inline void ant_object_prop_set_unchecked(ant_object_t *obj, uint32_t slot, ant_value_t value) {
uint32_t inobj_limit = ant_object_inobj_limit(obj);
if (slot < inobj_limit) obj->inobj[slot] = value;
else obj->overflow_prop[slot - inobj_limit] = value;
}
#endif

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