clox/object.c

/**
  ******************************************************************************
  * @file           : object.cpp
  * @author         : simon
  * @brief          : None
  * @attention      : None
  * @date           : 2023/8/23
  ******************************************************************************
  */
#include <stdio.h>
#include <string.h>

#include "memory.h"
#include "object.h"
#include "vm.h"

static Obj *allocateObject(size_t size, ObjType type);

#define ALLOCATE_OBJ(type, objectType) \
  (type *) allocateObject(sizeof(type), objectType)

static ObjString *allocateString(char *chars, int length) {
  ObjString *string = ALLOCATE_OBJ(ObjString, OBJ_STRING);
  string->length = length;
  string->chars = chars;
  return string;
}

ObjString *copyString(const char *chars, int length) {
  char *heapChars = ALLOCATE(char, length + 1);
  memcpy(heapChars, chars, length);
  heapChars[length] = '\0';
  return allocateString(heapChars, length);
}
void printObject(Value value) {
  switch (OBJ_TYPE(value)) {
    case OBJ_STRING:
      printf("%s", AS_CSTRING(value));
      break;
  }
}
ObjString *takeString(char *chars, int length) {
  return allocateString(chars, length);
}

static Obj *allocateObject(size_t size, ObjType type) {
  Obj *object = (Obj *) reallocate(NULL, 0, size);
  object->type = type;

  object->next = vm.objects;
  vm.objects = object;

  return object;
}