51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
#ifndef clox_value_h
|
|
#define clox_value_h
|
|
|
|
#include "common.h"
|
|
|
|
typedef struct Obj Obj;
|
|
typedef struct ObjString ObjString;
|
|
|
|
typedef enum {
|
|
VAL_BOOL,
|
|
VAL_NIL,
|
|
VAL_NUMBER,
|
|
VAL_OBJ,
|
|
} ValueType;
|
|
|
|
typedef struct {
|
|
ValueType type;
|
|
union {
|
|
bool boolean;
|
|
double number;
|
|
Obj *obj;
|
|
} as;
|
|
} Value;
|
|
|
|
#define IS_BOOL(value) ((value).type == VAL_BOOL)
|
|
#define IS_NIL(value) ((value).type == VAL_NIL)
|
|
#define IS_NUMBER(value) ((value).type == VAL_NUMBER)
|
|
#define IS_OBJ(value) ((value).type == VAL_OBJ)
|
|
|
|
#define AS_OBJ(value) ((value).as.obj)
|
|
#define AS_BOOL(value) ((value).as.boolean)
|
|
#define AS_NUMBER(value) ((value).as.number)
|
|
|
|
#define BOOL_VAL(value) ((Value){VAL_BOOL, {.boolean = value}})
|
|
#define NIL_VAL ((Value){VAL_NIL, {.number = 0}})
|
|
#define NUMBER_VAL(value) ((Value){VAL_NUMBER, {.number = value}})
|
|
#define OBJ_VAL(value) ((Value){VAL_OBJ, {.obj = (Obj *)value}})
|
|
|
|
typedef struct {
|
|
int capacity;
|
|
int count;
|
|
Value *values;
|
|
} ValueArray;
|
|
|
|
bool valuesEqual(Value a, Value b);
|
|
void initValueArray(ValueArray *array);
|
|
void writeValueArray(ValueArray *array, Value value);
|
|
void freeValueArray(ValueArray *array);
|
|
void printValue(Value value);
|
|
|
|
#endif
|