1 files changed, 32 insertions, 0 deletions
diff --git a/clox/src/object.h b/clox/src/object.h
new file mode 100644
index 0000000..7ab8f3a
--- /dev/null
+++ b/clox/src/object.h
@@ -0,0 +1,32 @@
+#ifndef OBJECT_H
+#define OBJECT_H
+
+#include "common.h"
+#include "value.h"
+
+#define OBJ_TYPE(value) (AS_OBJ(value)->type)
+
+#define IS_STRING(value) isObjType(value, OBJ_STRING)
+
+#define AS_STRING(value) ((ObjString *)AS_OBJ(value))
+#define AS_CSTRING(value) (((ObjString *)AS_OBJ(value))->chars)
+
+typedef enum {
+  OBJ_STRING,
+} ObjType;
+
+struct Obj {
+  ObjType type;
+};
+
+struct ObjString {
+  Obj obj;
+  int length;
+  char *chars;
+};
+
+static inline bool isObjType(Value value, ObjType type) {
+  return IS_OBJ(value) && AS_OBJ(value)->type == type;
+}
+
+#endif