clox/value.h

/**
  ******************************************************************************
  * @file           : value.h
  * @author         : simon
  * @brief          : 常量 support only double-precision, floating-point numbers
  * @attention      : None
  * @date           : 2023/8/16
  ******************************************************************************
  */

#ifndef CLOX__VALUE_H_
#define CLOX__VALUE_H_

#include "common.h"

typedef enum {
    VAL_BOOL,
    VAL_NIL,
    VAL_NUMBER,
} ValueType;

typedef struct {
    ValueType type;
    union {
        bool boolean;
        double number;
    } 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 AS_BOOL(value) ((value).as.boolean)
#define AS_NUMBER(value) ((value).as.number)

#define BOOL_VAL(vale) ((Value){VAL_BOOL, {.boolean = value}})
#define NIL_VAL(vale) ((Value){VAL_NIL, {.number = 0}})
#define NUMBER_VAL(value) ((Value){VAL_NUMBER, {.number = value}})

/// \brief 常量池
typedef struct {
    int capacity;
    int count;
    Value *values;
} ValueArray;

void initValueArray(ValueArray *array);

void writeValueArray(ValueArray *array, Value value);

void freeValueArray(ValueArray *array);

void printValue(Value value);

#endif //CLOX__VALUE_H_