From 8de71af4bd94ae1e41bf39a455ed716ac8cdf9bc Mon Sep 17 00:00:00 2001
From: Alexander Karatarakis <alkarata@microsoft.com>
Date: Mon, 30 Jan 2017 16:14:48 -0800
Subject: Introduce "optional" alias

---
 toolsrc/include/vcpkg_Dependencies.h | 5 +++--
 toolsrc/include/vcpkg_optional.h     | 5 +++++
 2 files changed, 8 insertions(+), 2 deletions(-)
 create mode 100644 toolsrc/include/vcpkg_optional.h

(limited to 'toolsrc/include')

diff --git a/toolsrc/include/vcpkg_Dependencies.h b/toolsrc/include/vcpkg_Dependencies.h
index 9180cb65e..2595d9fb8 100644
--- a/toolsrc/include/vcpkg_Dependencies.h
+++ b/toolsrc/include/vcpkg_Dependencies.h
@@ -3,6 +3,7 @@
 #include "package_spec.h"
 #include "StatusParagraphs.h"
 #include "vcpkg_paths.h"
+#include "vcpkg_optional.h"
 
 namespace vcpkg::Dependencies
 {
@@ -22,8 +23,8 @@ namespace vcpkg::Dependencies
     struct install_plan_action
     {
         install_plan_type plan_type;
-        std::unique_ptr<BinaryParagraph> binary_pgh;
-        std::unique_ptr<SourceParagraph> source_pgh;
+        optional<BinaryParagraph> binary_pgh;
+        optional<SourceParagraph> source_pgh;
     };
 
     struct package_spec_with_install_plan
diff --git a/toolsrc/include/vcpkg_optional.h b/toolsrc/include/vcpkg_optional.h
new file mode 100644
index 000000000..7b935bea9
--- /dev/null
+++ b/toolsrc/include/vcpkg_optional.h
@@ -0,0 +1,5 @@
+#pragma once
+#include <memory>
+
+template<class T>
+using optional = std::unique_ptr<T>;
-- 
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