multiple designs can now exist independent from each other. Cells/Wires/Modules can now move to a different parent without referencing issues

kernel/rtlil.cc

@@ -358,6 +358,10 @@ RTLIL::Design::Design()
 
 	refcount_modules_ = 0;
 	selection_stack.push_back(RTLIL::Selection());
+
+#ifdef WITH_PYTHON
+	RTLIL::Design::get_all_designs()->insert(std::pair<unsigned int, RTLIL::Design*>(hashidx_, this));
+#endif
 }
 
 RTLIL::Design::~Design()
@@ -368,8 +372,19 @@ RTLIL::Design::~Design()
 		delete n;
 	for (auto n : verilog_globals)
 		delete n;
+#ifdef WITH_PYTHON
+	RTLIL::Design::get_all_designs()->erase(hashidx_);
+#endif
 }
 
+#ifdef WITH_PYTHON
+static std::map<unsigned int, RTLIL::Design*> *all_designs = new std::map<unsigned int, RTLIL::Design*>();
+std::map<unsigned int, RTLIL::Design*> *RTLIL::Design::get_all_designs(void)
+{
+	return all_designs;
+}
+#endif
+
 RTLIL::ObjRange<RTLIL::Module*> RTLIL::Design::modules()
 {
 	return RTLIL::ObjRange<RTLIL::Module*>(&modules_, &refcount_modules_);
@@ -625,6 +640,11 @@ RTLIL::Module::Module()
 	design = nullptr;
 	refcount_wires_ = 0;
 	refcount_cells_ = 0;
+
+#ifdef WITH_PYTHON
+	std::cout << "inserting module with name " << this->name.c_str() << "\n";
+	RTLIL::Module::get_all_modules()->insert(std::pair<unsigned int, RTLIL::Module*>(hashidx_, this));
+#endif
 }
 
 RTLIL::Module::~Module()
@@ -637,8 +657,19 @@ RTLIL::Module::~Module()
 		delete it->second;
 	for (auto it = processes.begin(); it != processes.end(); ++it)
 		delete it->second;
+#ifdef WITH_PYTHON
+	RTLIL::Module::get_all_modules()->erase(hashidx_);
+#endif
 }
 
+#ifdef WITH_PYTHON
+static std::map<unsigned int, RTLIL::Module*> *all_modules = new std::map<unsigned int, RTLIL::Module*>();
+std::map<unsigned int, RTLIL::Module*> *RTLIL::Module::get_all_modules(void)
+{
+	return all_modules;
+}
+#endif
+
 RTLIL::IdString RTLIL::Module::derive(RTLIL::Design*, dict<RTLIL::IdString, RTLIL::Const>, bool mayfail)
 {
 	if (mayfail)
@@ -2187,8 +2218,20 @@ RTLIL::Wire::Wire()
 	port_input = false;
 	port_output = false;
 	upto = false;
+
+#ifdef WITH_PYTHON
+	RTLIL::Wire::get_all_wires()->insert(std::pair<unsigned int, RTLIL::Wire*>(hashidx_, this));
+#endif
 }
 
+#ifdef WITH_PYTHON
+static std::map<unsigned int, RTLIL::Wire*> *all_wires = new std::map<unsigned int, RTLIL::Wire*>();
+std::map<unsigned int, RTLIL::Wire*> *RTLIL::Wire::get_all_wires(void)
+{
+	return all_wires;
+}
+#endif
+
 RTLIL::Memory::Memory()
 {
 	static unsigned int hashidx_count = 123456789;
@@ -2208,8 +2251,20 @@ RTLIL::Cell::Cell() : module(nullptr)
 
 	// log("#memtrace# %p\n", this);
 	memhasher();
+
+#ifdef WITH_PYTHON
+	RTLIL::Cell::get_all_cells()->insert(std::pair<unsigned int, RTLIL::Cell*>(hashidx_, this));
+#endif
 }
 
+#ifdef WITH_PYTHON
+static std::map<unsigned int, RTLIL::Cell*> *all_cells = new std::map<unsigned int, RTLIL::Cell*>();
+std::map<unsigned int, RTLIL::Cell*> *RTLIL::Cell::get_all_cells(void)
+{
+	return all_cells;
+}
+#endif
+
 bool RTLIL::Cell::hasPort(RTLIL::IdString portname) const
 {
 	return connections_.count(portname) != 0;