Chapter 19.5

1 files changed, 45 insertions, 0 deletions

diff --git a/clox/src/object.c b/clox/src/object.c
new file mode 100644
index 0000000..9622327
--- /dev/null
+++ b/clox/src/object.c
@@ -0,0 +1,45 @@
+#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;
+  }
+}