From c4bdba78cb88df6628d975aad7a92c8cebc5d95f Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Sun, 27 Jul 2014 21:12:09 +0200
Subject: Added proper Design->addModule interface

---
 frontends/ast/ast.cc |  1 +
 kernel/rtlil.cc      | 39 ++++++++++++++++++++++++++++++++++++---
 kernel/rtlil.h       |  7 ++++++-
 3 files changed, 43 insertions(+), 4 deletions(-)

diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc
index 17041686..d38cb5e3 100644
--- a/frontends/ast/ast.cc
+++ b/frontends/ast/ast.cc
@@ -1051,6 +1051,7 @@ RTLIL::IdString AstModule::derive(RTLIL::Design *design, std::map<RTLIL::IdStrin
 RTLIL::Module *AstModule::clone() const
 {
 	AstModule *new_mod = new AstModule;
+	new_mod->name = name;
 	cloneInto(new_mod);
 
 	new_mod->ast = ast->clone();
diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc
index 9f9bd7e0..aec0a045 100644
--- a/kernel/rtlil.cc
+++ b/kernel/rtlil.cc
@@ -226,6 +226,39 @@ RTLIL::Design::~Design()
 		delete it->second;
 }
 
+RTLIL::ObjRange<RTLIL::Module*> RTLIL::Design::modules()
+{
+	return RTLIL::ObjRange<RTLIL::Module*>(&modules_, &refcount_modules_);
+}
+
+RTLIL::Module *RTLIL::Design::module(RTLIL::IdString name)
+{
+	return modules_.count(name) ? modules_.at(name) : NULL;
+}
+
+void RTLIL::Design::add(RTLIL::Module *module)
+{
+	assert(modules_.count(module->name) == 0);
+	assert(refcount_modules_ == 0);
+	modules_[module->name] = module;
+}
+
+RTLIL::Module *RTLIL::Design::addModule(RTLIL::IdString name)
+{
+	assert(modules_.count(name) == 0);
+	assert(refcount_modules_ == 0);
+	modules_[name] = new RTLIL::Module;
+	modules_[name]->name = name;
+	return modules_[name];
+}
+
+void RTLIL::Design::remove(RTLIL::Module *module)
+{
+	assert(modules_.at(module->name) == module);
+	modules_.erase(module->name);
+	delete module;
+}
+
 void RTLIL::Design::check()
 {
 #ifndef NDEBUG
@@ -412,7 +445,7 @@ namespace {
 		void check()
 		{
 			if (cell->type[0] != '$' || cell->type.substr(0, 3) == "$__" || cell->type.substr(0, 8) == "$paramod" ||
-					cell->type.substr(0, 9) == "$verific$" || cell->type.substr(0, 7) == "$array:")
+					cell->type.substr(0, 9) == "$verific$" || cell->type.substr(0, 7) == "$array:" || cell->type.substr(0, 8) == "$extern:")
 				return;
 
 			if (cell->type == "$not" || cell->type == "$pos" || cell->type == "$bu0" || cell->type == "$neg") {
@@ -791,7 +824,6 @@ void RTLIL::Module::cloneInto(RTLIL::Module *new_mod) const
 	log_assert(new_mod->refcount_wires_ == 0);
 	log_assert(new_mod->refcount_cells_ == 0);
 
-	new_mod->name = name;
 	new_mod->connections_ = connections_;
 	new_mod->attributes = attributes;
 
@@ -828,6 +860,7 @@ void RTLIL::Module::cloneInto(RTLIL::Module *new_mod) const
 RTLIL::Module *RTLIL::Module::clone() const
 {
 	RTLIL::Module *new_mod = new RTLIL::Module;
+	new_mod->name = name;
 	cloneInto(new_mod);
 	return new_mod;
 }
@@ -1455,7 +1488,7 @@ void RTLIL::Cell::check()
 void RTLIL::Cell::fixup_parameters(bool set_a_signed, bool set_b_signed)
 {
 	if (type[0] != '$' || type.substr(0, 2) == "$_" || type.substr(0, 8) == "$paramod" ||
-			type.substr(0, 9) == "$verific$" || type.substr(0, 7) == "$array:")
+			type.substr(0, 9) == "$verific$" || type.substr(0, 7) == "$array:" || type.substr(0, 8) == "$extern:")
 		return;
 
 	if (type == "$mux" || type == "$pmux" || type == "$safe_pmux")
diff --git a/kernel/rtlil.h b/kernel/rtlil.h
index 4341e067..cd00b43d 100644
--- a/kernel/rtlil.h
+++ b/kernel/rtlil.h
@@ -350,7 +350,12 @@ struct RTLIL::Design
 
 	~Design();
 
-	RTLIL::ObjRange<RTLIL::Module*> modules() { return RTLIL::ObjRange<RTLIL::Module*>(&modules_, &refcount_modules_); }
+	RTLIL::ObjRange<RTLIL::Module*> modules();
+	RTLIL::Module *module(RTLIL::IdString name);
+
+	void add(RTLIL::Module *module);
+	RTLIL::Module *addModule(RTLIL::IdString name);
+	void remove(RTLIL::Module *module);
 
 	void check();
 	void optimize();
-- 
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