crafting-interpreters/clox/src/object.c

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2021-09-09 22:57:03 -07:00
#include <stdio.h>
#include <string.h>
#include "memory.h"
#include "object.h"
#include "value.h"
#include "vm.h"
#define ALLOCATE_OBJ(type, objectType) \
(type *)allocateObject(sizeof(type), objectType)
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;
}
static ObjString *allocateString(char *chars, int length) {
ObjString *string = ALLOCATE_OBJ(ObjString, OBJ_STRING);
string->length = length;
string->chars = chars;
return string;
}
ObjString *takeString(char *chars, int length) {
return allocateString(chars, length);
}
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;
}
}