From 0ff50e2418c1620a86c01004f35dd2855bfe4c0f Mon Sep 17 00:00:00 2001
From: "E.Z. Hart" <hartez@users.noreply.github.com>
Date: Thu, 10 Aug 2017 14:08:18 -0400
Subject: Add support for backcompat hint flags (#1074)

* Add support for backcompat hint flags

* Making fast renderers internal and sealed while experimental
---
 Xamarin.Forms.Platform.iOS/Flags.cs                         |  7 +++++++
 Xamarin.Forms.Platform.iOS/Forms.cs                         | 13 +++++++++++++
 .../Xamarin.Forms.Platform.iOS.csproj                       |  3 ++-
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 Xamarin.Forms.Platform.iOS/Flags.cs

(limited to 'Xamarin.Forms.Platform.iOS')

diff --git a/Xamarin.Forms.Platform.iOS/Flags.cs b/Xamarin.Forms.Platform.iOS/Flags.cs
new file mode 100644
index 00000000..ae565a4b
--- /dev/null
+++ b/Xamarin.Forms.Platform.iOS/Flags.cs
@@ -0,0 +1,7 @@
+namespace Xamarin.Forms
+{
+	internal static class Flags
+	{
+		
+	}
+}
diff --git a/Xamarin.Forms.Platform.iOS/Forms.cs b/Xamarin.Forms.Platform.iOS/Forms.cs
index f2ba923f..ca1e2cf4 100644
--- a/Xamarin.Forms.Platform.iOS/Forms.cs
+++ b/Xamarin.Forms.Platform.iOS/Forms.cs
@@ -66,6 +66,19 @@ namespace Xamarin.Forms
 		}
 #endif
 
+		static IReadOnlyList<string> s_flags;
+		public static IReadOnlyList<string> Flags => s_flags ?? (s_flags = new List<string>().AsReadOnly());
+
+		public static void SetFlags(params string[] flags)
+		{
+			if (IsInitialized)
+			{
+				throw new InvalidOperationException($"{nameof(SetFlags)} must be called before {nameof(Init)}");
+			}
+
+			s_flags = flags.ToList().AsReadOnly();
+		}
+
 		public static void Init()
 		{
 			if (IsInitialized)
diff --git a/Xamarin.Forms.Platform.iOS/Xamarin.Forms.Platform.iOS.csproj b/Xamarin.Forms.Platform.iOS/Xamarin.Forms.Platform.iOS.csproj
index c7f02785..d89574a5 100644
--- a/Xamarin.Forms.Platform.iOS/Xamarin.Forms.Platform.iOS.csproj
+++ b/Xamarin.Forms.Platform.iOS/Xamarin.Forms.Platform.iOS.csproj
@@ -134,6 +134,7 @@
     <Compile Include="ExportRendererAttribute.cs" />
     <Compile Include="Extensions\ArrayExtensions.cs" />
     <Compile Include="Extensions\PlatformConfigurationExtensions.cs" />
+    <Compile Include="Flags.cs" />
     <Compile Include="NativeViewWrapper.cs" />
     <Compile Include="NativeViewWrapperRenderer.cs" />
     <Compile Include="PlatformEffect.cs" />
@@ -207,4 +208,4 @@
       <Link>Properties\GlobalAssemblyInfo.cs</Link>
     </Compile>
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file
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