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#include "memorystore.hpp"
#include <unordered_set>
using namespace std;
auto & concepts()
{
static std::unordered_set<concept*> concepts;
return concepts;
}
ref alloc(concept * moved) {
ref r = moved ? moved : new concept();
concepts().insert(r.ptr);
return r;
}
concept* referenced(ref r) {
for (ref r2 : concepts()) {
if (r2 == r) {
continue;
}
for (auto & l : r2->links) {
if (ref(l.first) == r) {
return r2.ptr;
}
if (ref(l.second) == r) {
return r2.ptr;
}
}
}
return 0;
}
void dealloc(ref r) {
concept * referenced = ::referenced(r);
if (referenced) {
throw std::logic_error("concept '" + r.name()->data + "' is referenced by '" + ref(referenced).name()->data + '"');
}
for (
auto it = concepts().begin();
it != concepts().end();
++ it)
{
if (ref(*it) == r) {
concepts().erase(it);
delete r.ptr;
return;
}
}
throw std::logic_error("concept not held");
}
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