From a6f5e59e186984a936e3e82c4d2dab66b22817d5 Mon Sep 17 00:00:00 2001
From: Matthew Guthaus <mrg@ucsc.edu>
Date: Mon, 23 Dec 2019 21:49:47 +0000
Subject: [PATCH] Remove unused layers and simplify layer check to work without
 it.

---
 compiler/pgates/pgate.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/compiler/pgates/pgate.py b/compiler/pgates/pgate.py
index 9cb73542..7e1fc87f 100644
--- a/compiler/pgates/pgate.py
+++ b/compiler/pgates/pgate.py
@@ -130,12 +130,12 @@ class pgate(design.design):
         max_y_offset = self.height + 0.5 * self.m1_width
         self.nwell_position = middle_position
         nwell_height = max_y_offset - middle_position.y
-        if layer["nwell"]:
+        if "nwell" in layer:
             self.add_rect(layer="nwell",
                           offset=middle_position,
                           width=self.well_width,
                           height=nwell_height)
-        if layer["vtg"]:
+        if "vtg" in layer:
             self.add_rect(layer="vtg",
                           offset=self.nwell_position,
                           width=self.well_width,
@@ -143,12 +143,12 @@ class pgate(design.design):
 
         pwell_position = vector(0, -0.5 * self.m1_width)
         pwell_height = middle_position.y - pwell_position.y
-        if layer["pwell"]:
+        if "pwell" in layer:
             self.add_rect(layer="pwell",
                           offset=pwell_position,
                           width=self.well_width,
                           height=pwell_height)
-        if layer["vtg"]:
+        if "vtg" in layer:
             self.add_rect(layer="vtg",
                           offset=pwell_position,
                           width=self.well_width,