From 29189291e5927381d1465d96792115e39ef4da69 Mon Sep 17 00:00:00 2001
From: "Carsey, Jaben" </o=Intel/ou=Americas01/cn=Workers/cn=Carsey, Jaben>
Date: Fri, 6 Apr 2018 07:13:58 +0800
Subject: [PATCH] BaseTools: change another list to set

potentially accelerate "in" testing which is the use for this variable

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>
---
 BaseTools/Source/Python/AutoGen/AutoGen.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/BaseTools/Source/Python/AutoGen/AutoGen.py b/BaseTools/Source/Python/AutoGen/AutoGen.py
index 9c976c3727..296b6e3f75 100644
--- a/BaseTools/Source/Python/AutoGen/AutoGen.py
+++ b/BaseTools/Source/Python/AutoGen/AutoGen.py
@@ -3778,7 +3778,7 @@ class ModuleAutoGen(AutoGen):
         if not self.SourceFileList:
             return []
 
-        NameGuids = []
+        NameGuids = set()
         for SrcFile in self.SourceFileList:
             if SrcFile.Ext.lower() != '.vfr':
                 continue
@@ -3810,7 +3810,7 @@ class ModuleAutoGen(AutoGen):
                 if not Guid:
                     break
                 NameArray = ConvertStringToByteArray('L"' + Name.group(1) + '"')
-                NameGuids.append((NameArray, GuidStructureStringToGuidString(Guid.group(1))))
+                NameGuids.add((NameArray, GuidStructureStringToGuidString(Guid.group(1))))
                 Pos = Content.find('efivarstore', Name.end())
         if not NameGuids:
             return []