FIX: IPC export efficiency (#752)

* FIX: layer name

* revert

* fix

* FIX

* MISC: Auto fixes from pre-commit.com hooks

For more information, see https://pre-commit.ci

* fix: docstring

* fix

---------

Co-authored-by: ring630 <@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: hui-zhou-a

src/pyedb/dotnet/edb_core/cell/primitive/primitive.py

@@ -113,8 +113,11 @@ def net_name(self, name):
     @property
     def layer(self):
         """Get the primitive edb layer object."""
-        layer_name = self._edb_object.GetLayer().GetName()
-        return self._pedb.stackup.all_layers[layer_name]
+        obj = self._edb_object.GetLayer()
+        if obj.IsNull():
+            return None
+        else:
+            return self._pedb.stackup.find_layer_by_name(obj.GetName())
 
     @property
     def layer_name(self):

src/pyedb/dotnet/edb_core/edb_data/layer_data.py

@@ -23,6 +23,13 @@
 from __future__ import absolute_import
 
 
+def layer_cast(pedb, edb_object):
+    if edb_object.IsStackupLayer():
+        return StackupLayerEdbClass(pedb, edb_object.Clone(), name=edb_object.GetName())
+    else:
+        return LayerEdbClass(pedb, edb_object.Clone(), name=edb_object.GetName())
+
+
 class LayerEdbClass(object):
     """Manages Edb Layers. Replaces EDBLayer."""
 

src/pyedb/dotnet/edb_core/stackup.py

@@ -36,6 +36,7 @@
 from pyedb.dotnet.edb_core.edb_data.layer_data import (
     LayerEdbClass,
     StackupLayerEdbClass,
+    layer_cast,
 )
 from pyedb.dotnet.edb_core.general import convert_py_list_to_net_list
 from pyedb.generic.general_methods import ET, generate_unique_name
@@ -284,10 +285,7 @@ def all_layers(self):
         layer_list = list(self._edb_object.Layers(self._pedb.edb_api.cell.layer_type_set.AllLayerSet))
         temp = dict()
         for i in layer_list:
-            if i.IsStackupLayer():
-                obj = StackupLayerEdbClass(self._pedb, i.Clone(), name=i.GetName())
-            else:
-                obj = LayerEdbClass(self._pedb, i.Clone(), name=i.GetName())
+            obj = layer_cast(self._pedb, i)
             temp[obj.name] = obj
         return temp
 
@@ -306,12 +304,20 @@ def layers(self):
         """
         return {name: obj for name, obj in self.all_layers.items() if obj.is_stackup_layer}
 
+    def find_layer_by_name(self, name: str):
+        """Finds a layer with the given name."""
+        obj = self._pedb.edb_api.cell._cell.Layer.FindByName(self._edb_object, name)
+        if obj.IsNull():
+            raise ValueError("Layer with name '{}' was not found.".format(name))
+        else:
+            return layer_cast(self._pedb, obj.Clone())
+
 
 class Stackup(LayerCollection):
     """Manages EDB methods for stackup accessible from `Edb.stackup` property."""
 
     def __getitem__(self, item):
-        return self.all_layers[item]
+        return self.find_layer_by_name(item)
 
     def __init__(self, pedb, edb_object=None):
         super().__init__(pedb, edb_object)
@@ -1800,7 +1806,7 @@ def residual_copper_area_per_layer(self):
         temp_data = {name: 0 for name, _ in self.signal_layers.items()}
         outline_area = 0
         for i in self._pedb.modeler.primitives:
-            layer_name = i.layer.name
+            layer_name = i._edb_object.GetLayer().GetName()
             if layer_name.lower() == "outline":
                 if i.area() > outline_area:
                     outline_area = i.area()