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#ifndef OBJECT_H
#define OBJECT_H
#include "chunk.h"
#include "common.h"
#include "value.h"
#define OBJ_TYPE(value) (AS_OBJ(value)->type)
#define IS_FUNCTION(value) isObjType(value, OBJ_FUNCTION)
#define IS_NATIVE(value) isObjType(value, OBJ_NATIVE)
#define IS_STRING(value) isObjType(value, OBJ_STRING)
#define AS_FUNCTION(value) ((ObjFunction *)AS_OBJ(value))
#define AS_NATIVE(value) (((ObjNative *)AS_OBJ(value))->function)
#define AS_STRING(value) ((ObjString *)AS_OBJ(value))
#define AS_CSTRING(value) (((ObjString *)AS_OBJ(value))->chars)
typedef enum {
OBJ_FUNCTION,
OBJ_NATIVE,
OBJ_STRING,
} ObjType;
struct Obj {
ObjType type;
struct Obj *next;
};
typedef struct {
Obj obj;
int arity;
Chunk chunk;
ObjString *name;
} ObjFunction;
typedef Value (*NativeFn)(int argCount, Value *args);
typedef struct {
Obj obj;
NativeFn function;
} ObjNative;
struct ObjString {
Obj obj;
int length;
char *chars;
uint32_t hash;
};
ObjFunction *newFunction();
ObjNative *newNative(NativeFn function);
ObjString *takeString(char *chars, int length);
ObjString *copyString(const char *chars, int length);
void printObject(Value value);
static inline bool isObjType(Value value, ObjType type) {
return IS_OBJ(value) && AS_OBJ(value)->type == type;
}
#endif
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