1 files changed, 54 insertions, 0 deletions
diff --git a/includes/oo.h b/includes/oo.h
new file mode 100644
index 0000000..b75812f
--- /dev/null
+++ b/includes/oo.h
@@ -0,0 +1,54 @@
+#ifndef OO_H
+#define OO_H
+
+#define NAMEOF_(X) #X
+#define NAMEOF(X) NAMEOF_(X)
+
+#define __CONCAT(x, y) x ## y
+
+#define CONCAT2(x, y) __CONCAT(x, y)
+#define CONCAT3(x, y, z) CONCAT2(CONCAT2(x, y), z)
+#define CONCAT4(x, y, z, w) CONCAT2(CONCAT2(x, y), CONCAT2(z, w))
+
+#define CATCH_SELF_NULL(MNAME) CATCH_SELF_NULL_(MNAME)
+#define CATCH_SELF_NULL_(MNAME) do { \
+    if (NULL == self) { \
+        fprintf(stderr, "[FATAL] " #MNAME " -- self is null\n"); \
+        exit(139); \
+    } \
+} while (0);
+
+// end of utils
+
+#define SIZEOF_OBJ(T) sizeof(DEFINE_OBJECT_STRUCTURE(T))
+
+#define DEFINE_OBJECT_STRUCTURE(N) struct CONCAT3(__oo_, N, _struct)
+#define DEFINE_OBJECT_PTR(N) typedef DEFINE_OBJECT_STRUCTURE(N) * N
+#define DEFINE_OBJECT(N) DEFINE_OBJECT_STRUCTURE(N); DEFINE_OBJECT_PTR(N);
+
+#define CONSTRUCTOR(T) T CONCAT2(T, _alloc)()
+#define CONSTRUCTOR_IMPLEMENT(T) CONSTRUCTOR(T) { \
+    T ptr = (T)malloc(SIZEOF_OBJ(T)); \
+    if (NULL == ptr) { \
+        perror("Could not allocate new '" NAMEOF(T) "' instance"); \
+        exit(1); \
+    } \
+    return ptr; \
+}
+
+#define METHOD(T, N) CONCAT3(T, _, N) (T self)
+#define METHOD_ARG(T, N, ...) CONCAT3(T, _, N) (T self, __VA_ARGS__)
+
+#define GETTER(T, MT, M) MT CONCAT4(T, _, M, _get) (T self)
+#define SETTER(T, MT, M) void CONCAT4(T, _, M, _set) (T self, MT v)
+
+#define GETTER_IMPLEMENT(T, MT, M) GETTER(T, MT, M) { \
+    CATCH_SELF_NULL(CONCAT4(T, _, M, _get)); \
+    return self-> M; \
+}
+#define SETTER_IMPLEMENT(T, MT, M) SETTER(T, MT, M) { \
+    CATCH_SELF_NULL(CONCAT4(T, _, M, _set)); \
+    self-> M = v; \
+}
+
+#endif