From 1b3e8e14c5f78e30c22828b9a2ec8deff1445927 Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@klayout.de>
Date: Mon, 6 Mar 2023 22:38:10 +0100
Subject: [PATCH] Netlist reader: anonymous circuits are not checked for known
 parameters

---
 src/db/db/dbNetlistSpiceReader.cc | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/db/db/dbNetlistSpiceReader.cc b/src/db/db/dbNetlistSpiceReader.cc
index 978662e3e..46e6ce391 100644
--- a/src/db/db/dbNetlistSpiceReader.cc
+++ b/src/db/db/dbNetlistSpiceReader.cc
@@ -227,11 +227,21 @@ public:
   typedef pin_list_type::const_iterator pin_const_iterator;
 
   SpiceCachedCircuit (const std::string &name)
-    : m_name (name)
+    : m_name (name), m_anonymous (false)
   {
     //  .. nothing yet ..
   }
 
+  bool is_anonymous () const
+  {
+    return m_anonymous;
+  }
+
+  void set_anonymous (bool f)
+  {
+    m_anonymous = f;
+  }
+
   const std::string &name () const
   {
     return m_name;
@@ -305,6 +315,7 @@ private:
   parameters_type m_parameters;
   pin_list_type m_pins;
   cards_type m_cards;
+  bool m_anonymous;
 };
 
 static std::string
@@ -1067,12 +1078,15 @@ SpiceNetlistBuilder::process_element (tl::Extractor &ex, const std::string &pref
         error (tl::sprintf (tl::to_string (tr ("Subcircuit '%s' not found in netlist")), model));
       } else {
         db::SpiceCachedCircuit *cc_nc = mp_dict->create_cached_circuit (model);
+        cc_nc->set_anonymous (true);
         cc = cc_nc;
         std::vector<std::string> pins;
         pins.resize (nn.size ());
         cc_nc->set_pins (pins);
       }
-    } else {
+    }
+
+    if (! cc->is_anonymous ()) {
       //  issue warnings on unknown parameters which are skipped otherwise
       for (auto p = pv.begin (); p != pv.end (); ++p) {
         if (cc->parameters ().find (p->first) == cc->parameters ().end ()) {