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shapes.h
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shapes.h
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#ifndef ANT_SHAPES_H
#define ANT_SHAPES_H
#include "types.h"
#include <stdbool.h>
#include <stdint.h>
#ifndef ANT_INOBJ_MAX_SLOTS
#define ANT_INOBJ_MAX_SLOTS 4u
#endif
#define ANT_PROP_ATTR_WRITABLE (1u << 0)
#define ANT_PROP_ATTR_ENUMERABLE (1u << 1)
#define ANT_PROP_ATTR_CONFIGURABLE (1u << 2)
#define ANT_PROP_ATTR_DEFAULT (ANT_PROP_ATTR_WRITABLE | ANT_PROP_ATTR_ENUMERABLE | ANT_PROP_ATTR_CONFIGURABLE)
typedef enum {
ANT_SHAPE_KEY_STRING = 0,
ANT_SHAPE_KEY_SYMBOL = 1,
} ant_shape_key_type_t;
typedef struct {
ant_shape_key_type_t type;
union {
const char *interned;
ant_offset_t sym_off;
} key;
uint8_t attrs;
uint8_t has_getter;
uint8_t has_setter;
ant_value_t getter;
ant_value_t setter;
} ant_shape_prop_t;
ant_shape_t *ant_shape_new(void);
ant_shape_t *ant_shape_new_with_inobj_limit(uint8_t inobj_limit);
ant_shape_t *ant_shape_clone(const ant_shape_t *shape);
bool ant_shape_is_shared(const ant_shape_t *shape);
void ant_shape_retain(ant_shape_t *shape);
void ant_shape_release(ant_shape_t *shape);
uint8_t ant_shape_get_inobj_limit(const ant_shape_t *shape);
int32_t ant_shape_lookup_interned(const ant_shape_t *shape, const char *interned);
int32_t ant_shape_lookup_symbol(const ant_shape_t *shape, ant_offset_t sym_off);
bool ant_shape_add_interned(ant_shape_t *shape, const char *interned, uint8_t attrs, uint32_t *out_slot);
bool ant_shape_add_symbol(ant_shape_t *shape, ant_offset_t sym_off, uint8_t attrs, uint32_t *out_slot);
bool ant_shape_add_interned_tr(ant_shape_t **shape_pp, const char *interned, uint8_t attrs, uint32_t *out_slot);
bool ant_shape_add_symbol_tr(ant_shape_t **shape_pp, ant_offset_t sym_off, uint8_t attrs, uint32_t *out_slot);
bool ant_shape_remove_slot(ant_shape_t *shape, uint32_t slot, uint32_t *swapped_from);
uint32_t ant_shape_count(const ant_shape_t *shape);
const ant_shape_prop_t *ant_shape_prop_at(const ant_shape_t *shape, uint32_t slot);
ant_shape_prop_t *ant_shape_prop_mut_at(ant_shape_t *shape, uint32_t slot);
bool ant_shape_set_attrs_interned(ant_shape_t *shape, const char *interned, uint8_t attrs);
bool ant_shape_set_attrs_symbol(ant_shape_t *shape, ant_offset_t sym_off, uint8_t attrs);
uint8_t ant_shape_get_attrs(const ant_shape_t *shape, uint32_t slot);
bool ant_shape_clear_accessor_slot(ant_shape_t *shape, uint32_t slot);
void ant_gc_shapes_begin(void);
void ant_gc_shapes_mark(ant_shape_t *shape);
bool ant_gc_shapes_sweep(void);
size_t ant_shape_total_bytes(void);
extern uint32_t ant_ic_epoch_counter;
static inline void ant_ic_epoch_bump(void) {
ant_ic_epoch_counter++;
if (ant_ic_epoch_counter == 0) ant_ic_epoch_counter = 1;
}
#endif

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