ViewInspector fails to compile on macOS SDK 26

[schatt]

ViewInspector fails to compile on macOS SDK 26

Environment

• macOS SDK Version: 26.0
• Xcode Version: 26.0.1 (Build 17A400)
• Swift Version: 6.2 (swift-6.2-RELEASE)
• ViewInspector Version: 0.9.7 - 0.10.3 (tested)
• Platform: macOS

Issue

ViewInspector fails to compile on macOS SDK 26 because it uses SwiftUI types that are iOS-only and not available on macOS.

Compilation Errors

VideoPlayer.swift

error: cannot find type 'VideoPlayer' in scope
extension VideoPlayer: SingleViewProvider {
           `- error: cannot find type 'VideoPlayer' in scope

SignInWithAppleButton.swift

error: cannot find type 'SignInWithAppleButton' in scope
func labelType() throws -> SignInWithAppleButton.Label {
                               `- error: cannot find type 'SignInWithAppleButton' in scope

Map.swift and MapAnnotation.swift

error: cannot find type 'MapAnnotation' in scope
error: cannot find type 'MapMarker' in scope
error: cannot find type 'MapPin' in scope
error: cannot find type 'MapUserTrackingMode' in scope
error: cannot find type 'MapInteractionModes' in scope
error: cannot find type '_DefaultAnnotatedMapContent' in scope
error: cannot find type '_MapAnnotationData' in scope

Root Cause

The SwiftUI types (VideoPlayer, SignInWithAppleButton, Map variants) are iOS-only and not available in macOS SDK 26. ViewInspector has conditional compilation guards for canImport(AVKit) and canImport(AuthenticationServices) but does not exclude these code paths for macOS.

Reproduction

1. Create a Swift Package targeting macOS
2. Add ViewInspector as a test dependency
3. Attempt to build on macOS SDK 26
4. Observe compilation errors

Proposed Solution

Add macOS exclusion guards to the affected files:

• Sources/ViewInspector/SwiftUI/VideoPlayer.swift - Wrap in #if !os(macOS)
• Sources/ViewInspector/SwiftUI/SignInWithAppleButton.swift - Wrap in #if !os(macOS)
• Sources/ViewInspector/SwiftUI/Map.swift - Change guard to #if !os(macOS) && canImport(MapKit)
• Sources/ViewInspector/SwiftUI/MapAnnotation.swift - Change guard to #if !os(macOS) && canImport(MapKit)
• Sources/ViewInspector/ViewSearchIndex.swift - Conditionally exclude entries in view search index

Impact

• Blocks tests from running on macOS
• Affects CI/CD pipelines targeting macOS
• Prevents cross-platform testing workflows

Workaround

None available without modifying ViewInspector source code. Users must either:

1. Use iOS-only test targets
2. Exclude ViewInspector from macOS test targets
3. Use alternative testing frameworks for macOS tests

Related

These SwiftUI view types were introduced for iOS and are not available on macOS. The canImport checks verify frameworks are available but don't check if the SwiftUI types exist in the SDK.