From f80b3ce2b52f568bb04005c24ad11c3a05cf7a15 Mon Sep 17 00:00:00 2001
From: olpc user <olpc@xo-5d-f7-86.localdomain>
Date: Sun, 24 Nov 2019 14:09:27 -0800
Subject: level0 few more checks

---
 starts/meaning-vm/level-0/memorystore.cpp |  5 +++++
 starts/meaning-vm/level-0/memorystore.hpp |  1 +
 starts/meaning-vm/level-0/vref.hpp        |  3 ++-
 starts/meaning-vm/level0.cpp              | 31 ++++++++++++++++++++++++++++++-
 4 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/starts/meaning-vm/level-0/memorystore.cpp b/starts/meaning-vm/level-0/memorystore.cpp
index 6cf71df..0a4f0cc 100644
--- a/starts/meaning-vm/level-0/memorystore.cpp
+++ b/starts/meaning-vm/level-0/memorystore.cpp
@@ -55,5 +55,10 @@ void dealloc(ref r) {
 	throw no_such_concept(r);
 }
 
+std::size_t allocated()
+{
+	return concepts().size();
+}
+
 }
 }
diff --git a/starts/meaning-vm/level-0/memorystore.hpp b/starts/meaning-vm/level-0/memorystore.hpp
index 4e0a2bd..a86ccea 100644
--- a/starts/meaning-vm/level-0/memorystore.hpp
+++ b/starts/meaning-vm/level-0/memorystore.hpp
@@ -8,6 +8,7 @@ namespace level0 {
 
 ref alloc(concept * moved = 0);
 void dealloc(ref);
+std::size_t allocated();
 
 }
 }
diff --git a/starts/meaning-vm/level-0/vref.hpp b/starts/meaning-vm/level-0/vref.hpp
index 7fe2045..cffc8f5 100644
--- a/starts/meaning-vm/level-0/vref.hpp
+++ b/starts/meaning-vm/level-0/vref.hpp
@@ -15,10 +15,11 @@ struct vref
 	value<T>* operator->() { return ptr; }
 	operator T const &() const { return *ptr; }
 
-	vref(T const & val) : ptr(alloc(new value<T>(val))) { }
+	vref(T const & val) : vref(alloc(new value<T>(val))) { }
 
 	vref(ref const & other) : ptr(static_cast<value<T>*>(other.ptr)) { }
 	operator ref() { return ptr; }
+	T const & val() { return *ptr; }
 
 	// for use by containers
 	bool operator<(vref<T> const & other) const { return self.ptr < other.ptr; }
diff --git a/starts/meaning-vm/level0.cpp b/starts/meaning-vm/level0.cpp
index 71c18b7..8cb60f9 100644
--- a/starts/meaning-vm/level0.cpp
+++ b/starts/meaning-vm/level0.cpp
@@ -1,5 +1,6 @@
 #include "level-0/level-0.hpp"
 
+#include <functional>
 #include <iostream>
 
 using namespace intellect::level0;
@@ -11,6 +12,12 @@ int main()
 	ref c = alloc();
 	ref d = alloc();
 	ref e = alloc();
+	vref<int> num(3);
+	vref<std::function<void()>> code([](){
+		std::cout << "Hello, world." << std::endl;
+	});
+	auto numlink = alloc();
+	auto codelink = alloc();
 
 	ref skip = alloc();
 	
@@ -18,8 +25,30 @@ int main()
 	a->link(d, e);
 	e->link(b, a);
 	c->link(b, e);
+	a->link(numlink, num);
+	a->link(codelink, code);
 
-	std::cout << a.dump(skip, skip) << std::endl;
+	std::cout << "Num: " << ref(num).dump(skip, skip);
+	std::cout << "Code: " << ref(code).dump(skip, skip);
+	std::cout << a.dump(skip, skip);
+	std::cout << "Num: " << a->vget<int>(numlink).val() << std::endl;
+	std::cout << "Code:  "; a->vget<std::function<void()>>(codelink).val()();
+
+	std::cout << allocated() << " allocated" << std::endl;
+
+	e->unlink(b, a);
+	dealloc(a);
+	dealloc(c);
+	dealloc(e);
+	dealloc(b);
+	dealloc(d);
+	dealloc(numlink);
+	dealloc(codelink);
+	dealloc(num);
+	dealloc(code);
+	dealloc(skip);
+
+	std::cout << allocated() << " allocated" << std::endl;
 
 	return 0;
 }
-- 
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