From 3f1c3cf20920e59fd26d49cebcc30e14c7512747 Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@koefferlein.de>
Date: Mon, 15 Jun 2020 01:27:33 +0200
Subject: [PATCH] Extended NetlistCrossReference class so we can easily obtain
 the other_... objects.

---
 src/db/db/dbNetlistCrossReference.cc        | 33 +++++++++++++++++++++
 src/db/db/dbNetlistCrossReference.h         |  3 ++
 src/db/db/gsiDeclDbNetlistCrossReference.cc | 28 +++++++++++++++++
 3 files changed, 64 insertions(+)

diff --git a/src/db/db/dbNetlistCrossReference.cc b/src/db/db/dbNetlistCrossReference.cc
index a0a0464a6..479121ba5 100644
--- a/src/db/db/dbNetlistCrossReference.cc
+++ b/src/db/db/dbNetlistCrossReference.cc
@@ -55,6 +55,39 @@ NetlistCrossReference::per_circuit_data_for (const std::pair<const db::Circuit *
   return 0;
 }
 
+const db::Pin *
+NetlistCrossReference::other_pin_for (const db::Pin *pin) const
+{
+  std::map<const db::Pin *, const db::Pin *>::const_iterator i = m_other_pin.find (pin);
+  if (i != m_other_pin.end ()) {
+    return i->second;
+  } else {
+    return 0;
+  }
+}
+
+const db::Device *
+NetlistCrossReference::other_device_for (const db::Device *device) const
+{
+  std::map<const db::Device *, const db::Device *>::const_iterator i = m_other_device.find (device);
+  if (i != m_other_device.end ()) {
+    return i->second;
+  } else {
+    return 0;
+  }
+}
+
+const db::SubCircuit *
+NetlistCrossReference::other_subcircuit_for (const db::SubCircuit *subcircuit) const
+{
+  std::map<const db::SubCircuit *, const db::SubCircuit *>::const_iterator i = m_other_subcircuit.find (subcircuit);
+  if (i != m_other_subcircuit.end ()) {
+    return i->second;
+  } else {
+    return 0;
+  }
+}
+
 const db::Circuit *
 NetlistCrossReference::other_circuit_for (const db::Circuit *circuit) const
 {
diff --git a/src/db/db/dbNetlistCrossReference.h b/src/db/db/dbNetlistCrossReference.h
index d61868445..c0e9be7eb 100644
--- a/src/db/db/dbNetlistCrossReference.h
+++ b/src/db/db/dbNetlistCrossReference.h
@@ -256,6 +256,9 @@ public:
     return m_circuits.end ();
   }
 
+  const db::Pin *other_pin_for (const db::Pin *pin) const;
+  const db::Device *other_device_for (const db::Device *device) const;
+  const db::SubCircuit *other_subcircuit_for (const db::SubCircuit *subcircuit) const;
   const db::Circuit *other_circuit_for (const db::Circuit *circuit) const;
   const db::Net *other_net_for (const db::Net *net) const;
   const PerNetData *per_net_data_for (const std::pair<const db::Net *, const db::Net *> &nets) const;
diff --git a/src/db/db/gsiDeclDbNetlistCrossReference.cc b/src/db/db/gsiDeclDbNetlistCrossReference.cc
index 13078d5e1..de230a506 100644
--- a/src/db/db/gsiDeclDbNetlistCrossReference.cc
+++ b/src/db/db/gsiDeclDbNetlistCrossReference.cc
@@ -403,6 +403,34 @@ Class<db::NetlistCrossReference> decl_dbNetlistCrossReference (decl_dbNetlistCom
     "The return value will be nil if no match is found. "
     "Otherwise it is the 'b' net for nets from the 'a' netlist and vice versa."
   ) +
+  gsi::method ("other_circuit_for", &db::NetlistCrossReference::other_circuit_for, gsi::arg ("circuit"),
+    "@brief Gets the matching other circuit for a given primary circuit.\n"
+    "The return value will be nil if no match is found. "
+    "Otherwise it is the 'b' circuit for circuits from the 'a' netlist and vice versa."
+    "\n\n"
+    "This method has been introduced in version 0.27.\n"
+  ) +
+  gsi::method ("other_device_for", &db::NetlistCrossReference::other_device_for, gsi::arg ("device"),
+    "@brief Gets the matching other device for a given primary device.\n"
+    "The return value will be nil if no match is found. "
+    "Otherwise it is the 'b' device for devices from the 'a' netlist and vice versa."
+    "\n\n"
+    "This method has been introduced in version 0.27.\n"
+  ) +
+  gsi::method ("other_pin_for", &db::NetlistCrossReference::other_pin_for, gsi::arg ("pin"),
+    "@brief Gets the matching other pin for a given primary pin.\n"
+    "The return value will be nil if no match is found. "
+    "Otherwise it is the 'b' pin for pins from the 'a' netlist and vice versa."
+    "\n\n"
+    "This method has been introduced in version 0.27.\n"
+  ) +
+  gsi::method ("other_subcircuit_for", &db::NetlistCrossReference::other_subcircuit_for, gsi::arg ("subcircuit"),
+    "@brief Gets the matching other subcircuit for a given primary subcircuit.\n"
+    "The return value will be nil if no match is found. "
+    "Otherwise it is the 'b' subcircuit for subcircuits from the 'a' netlist and vice versa."
+    "\n\n"
+    "This method has been introduced in version 0.27.\n"
+  ) +
   gsi::method ("clear", &db::NetlistCrossReference::clear,
     "@hide\n"
   ) +