diff --git a/.swiftpm/xcode/xcshareddata/xcschemes/Wrap.xcscheme b/.swiftpm/xcode/xcshareddata/xcschemes/Wrap.xcscheme
new file mode 100644
index 0000000..b8387e7
--- /dev/null
+++ b/.swiftpm/xcode/xcshareddata/xcschemes/Wrap.xcscheme
@@ -0,0 +1,88 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1630"
+   version = "2.2">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      buildArchitectures = "Automatic">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "NO"
+            buildForArchiving = "NO"
+            buildForAnalyzing = "NO">
+            <AutocreatedTestPlanReference>
+            </AutocreatedTestPlanReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "Wrap"
+               BuildableName = "Wrap"
+               BlueprintName = "Wrap"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "WrapTests"
+               BuildableName = "WrapTests"
+               BlueprintName = "WrapTests"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "Wrap"
+            BuildableName = "Wrap"
+            BlueprintName = "Wrap"
+            ReferencedContainer = "container:">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/Sources/Wrap/Wrap.swift b/Sources/Wrap/Wrap.swift
index 842c0f9..7257303 100644
--- a/Sources/Wrap/Wrap.swift
+++ b/Sources/Wrap/Wrap.swift
@@ -1,4 +1,8 @@
 
+precedencegroup Wrap {
+  
+}
+
 postfix operator &>
 infix operator <&
 
diff --git a/Tests/WrapTests/File.swift b/Tests/WrapTests/File.swift
index 6ea87a2..459343e 100644
--- a/Tests/WrapTests/File.swift
+++ b/Tests/WrapTests/File.swift
@@ -16,4 +16,35 @@ final class WrapTests: XCTestCase {
     value <& { $0 += 1 }
     XCTAssertEqual(value, 43)
   }
+  
+  func testOptional() {
+    
+    var optional: Int? = 42
+    
+    optional&>.do {
+      print($0)
+    }
+    
+    optional?&>.do {
+      print($0)
+    }
+    
+    do {
+      
+      var container: Container? = .init(value: 42)
+      
+      container?.value&>.do {
+        print($0)
+      }
+      
+    }
+    
+  }
+  
+  struct Container {
+    
+    var value: Int
+    
+
+  }
 }