bootdev-c/src/10-2-refcounting/snekobject.h

#include <stdbool.h>
#include <stddef.h>

typedef struct SnekObject snek_object_t;

typedef enum SnekObjectKind {
	INTEGER,
	FLOAT,
	STRING,
	VECTOR3,
	ARRAY,
} snek_object_kind_t;

typedef struct SnekVector {
	snek_object_t *x;
	snek_object_t *y;
	snek_object_t *z;
} snek_vector_t;

typedef struct SnekArray {
	size_t size;
	snek_object_t **elements;
} snek_array_t;

typedef union SnekObjectData {
	int v_int;
	float v_float;
	char* v_string;
	snek_vector_t v_vector3;
	snek_array_t v_array;
} snek_object_data_t;

typedef struct SnekObject {
	snek_object_kind_t kind;
	snek_object_data_t data;
	size_t refcount;
} snek_object_t;

snek_object_t *new_snek_integer(int value);
snek_object_t *new_snek_float(float value);
snek_object_t *new_snek_string(char *value);
snek_object_t *new_snek_vector3(snek_object_t *x, snek_object_t *y, snek_object_t *z);

snek_object_t *new_snek_array(size_t size);
bool snek_array_set(snek_object_t *snek_obj, size_t index, snek_object_t *value);
snek_object_t *snek_array_get(snek_object_t *snek_obj, size_t index);
int snek_length(snek_object_t *obj);