Make object groups and implicit references a bit more lightweight.

src/allocation.h

Index: src/allocation.h
diff --git a/src/allocation.h b/src/allocation.h
index 75aba35d8cfcf0a4111cda2a8321693eb6372c7b..1011e62d18d2cdfd4b5b4929aacccf81fa7e2154 100644
--- a/src/allocation.h
+++ b/src/allocation.h
@@ -51,6 +51,14 @@ class Malloced {
 };
 
 
+// Superclass for classes with custom allocation.
+class CustomlyAllocated {

[antonm, 2011/04/06 11:01:48]

I don't like the name, but I cannot come up with anything better.

However, apparently the best way to make class really custom allocated is by
making its ctor/dtor private (so it cannot be stack allocated).

Maybe just declare a macro for it and forget about special base class?

[Vitaly Repeshko, 2011/04/06 19:11:01]

Yeah, since it requires hiding both new/delete and ctor/dtor, we need a macro.
But given that we'd only have two usages, I removed this base class and made
new/delete private explicitly in the global handle classes.

+ private:
+  void* operator new(size_t size);
+  void operator delete(void* p);
+};
+
+
 // A macro is used for defining the base class used for embedded instances.
 // The reason is some compilers allocate a minimum of one word for the
 // superclass. The macro prevents the use of new & delete in debug mode.