refactor: added MainActor annotations where needed.

Sources/Deeplink/AnyDeeplink.swift

@@ -9,7 +9,7 @@ import Foundation
 
 /// Type-erased version of ``Deeplink/Deeplink``. Used to keep a list of Deeplinks in the ``Deeplink/DeeplinksCenter`` where every element of the list might have different type parameters.
 public struct AnyDeeplink: CustomStringConvertible {
-    var parseURLIntoInstance: (URL) throws -> Bool
+    var parseURLIntoInstance: @MainActor (URL) throws -> Bool
     public let description: String
 
     /// Designated initializer.
@@ -21,7 +21,7 @@ public struct AnyDeeplink: CustomStringConvertible {
     init<Value>(
         deeplink: Deeplink<Value>,
         assigningTo instance: Value,
-        ifMatching completion: @escaping (URL, Value) throws -> Bool
+        ifMatching completion: @escaping @MainActor (URL, Value) throws -> Bool
     ) {
         self.parseURLIntoInstance = { url in
             var newInstance = instance
@@ -39,7 +39,7 @@ public struct AnyDeeplink: CustomStringConvertible {
     ///   - completion: The completion handler to invoke if the `URL` passed to the `parse(_ url:)` function matches the deeplink template.
     init<Value>(
         deeplink: Deeplink<Value>,
-        ifMatching completion: @escaping (URL, Value) throws -> Bool
+        ifMatching completion: @escaping @MainActor (URL, Value) throws -> Bool
     )
     where Value: DefaultInitializable
     {
@@ -55,7 +55,7 @@ extension AnyDeeplink {
     /// Attempts to parse the argument `url` using the `deeplink` previously passed to the initializer.
     /// If the pattern is recognized successfully, the arguments of the template will get assigned to the `assigningTo` parameter, which will be then forwarded to the `ifMatching` closure, together with the matching `url`.
     /// - Parameter url: The `URL` to match.
-    func parse(
+    @MainActor func parse(
         _ url: URL
     ) throws -> Bool {
         try self.parseURLIntoInstance(url)

Sources/Deeplink/DeeplinksCenter.swift

@@ -104,7 +104,7 @@ public class DeeplinksCenter {
     public func register<Value>(
         deeplink: Deeplink<Value>,
         assigningTo: Value,
-        ifMatching completion: @escaping (URL, Value) throws -> Bool
+        ifMatching completion: @escaping @MainActor (URL, Value) throws -> Bool
     ) -> DeeplinksCenter {
         let typeErasedDeeplink = AnyDeeplink(
             deeplink: deeplink,
@@ -152,7 +152,7 @@ public class DeeplinksCenter {
     public func register<Value>(
         deeplinks: [Deeplink<Value>],
         assigningTo: Value,
-        ifMatching completion: @escaping (URL, Value) throws -> Bool
+        ifMatching completion: @escaping @MainActor (URL, Value) throws -> Bool
     ) -> DeeplinksCenter {
 
         self.deeplinks.append(contentsOf: deeplinks.map {
@@ -200,7 +200,7 @@ public class DeeplinksCenter {
     @discardableResult
     public func register(
         deeplink: Deeplink<Void>,
-        ifMatching completion: @escaping (URL) throws -> Bool
+        ifMatching completion: @escaping @MainActor (URL) throws -> Bool
     ) -> DeeplinksCenter {
         self.register(
             deeplink: deeplink,
@@ -243,7 +243,7 @@ public class DeeplinksCenter {
     @discardableResult
     public func register(
         deeplinks: [Deeplink<Void>],
-        ifMatching completion: @escaping (URL) throws -> Bool
+        ifMatching completion: @escaping @MainActor (URL) throws -> Bool
     ) -> DeeplinksCenter {
         self.register(
             deeplinks: deeplinks,
@@ -257,7 +257,7 @@ public class DeeplinksCenter {
     /// If a match is found, the corresponding argument segments will be assigned to the keypaths specified in the deeplink interpolation, and the `ifMatching` closure defined when calling `register:` will be executed.
     /// If no match is found, an error is thrown.
     /// - Parameter url: The `URL` to parse.
-    public func parse(
+    @MainActor public func parse(
         url: URL
     ) throws {
 

Sources/Deeplink/Documentation.docc/Tutorials/Adding a Deeplink.tutorial

@@ -64,7 +64,6 @@
                 Now we need to make a template that describes how to parse the information from a link.
 
                 This time, we'll use a keypath to our `[String]` property, and pass an additional argument to tell the system what separator should we use to parse the arguments.
-
                 As before, the data present in the URL at the location where the keypath is inserted will be assigned to the property indicated by the keypath; each item in its own String object.
 
                 @Code(name: "Defining Deeplink Data Lists.swift", file: "AddingADeeplinkList 2.swift")

Sources/Deeplink/SampleDeeplink.swift

@@ -39,7 +39,7 @@ public struct SampleDeeplink<Value> {
     ///   - deeplinkTemplate: The deeplink template that you want to test. It is recommended to pass the exact same template instance that you use in your `DeeplinkCenter` to avoid having to manually keep them in sync.
     ///   - urlToParse: The test URL that you want to use for testing.
     ///   - assigningToInstance: The instance of the object to which assign the values of the parsed parameters.
-    ///   - expectation: A closure where you should declare an expectation to fulfill, using ``XCTest/XCTestCase/expectation(description:)``.
+    ///   - expectation: A closure where you should declare an expectation to fulfill, using `XCTestCase.expectation(description:)`.
     ///   - assertions: A closure that you can use to verify the correctness of the parsed parameters.
     public init(
         deeplinkTemplate: Deeplink<Value>,
@@ -67,7 +67,7 @@ public extension SampleDeeplink where Value == Void {
     /// - Parameters:
     ///   - deeplinkTemplate: The deeplink template that you want to test. It is recommended to pass the exact same template instance that you use in your `DeeplinkCenter` to avoid having to manually keep them in sync.
     ///   - urlToParse: The test URL that you want to use for testing.
-    ///   - expectation: A closure where you should declare an expectation to fulfill, using ``XCTest/XCTestCase/expectation(description:)``.
+    ///   - expectation: A closure where you should declare an expectation to fulfill, using `XCTestCase.expectation(description:)`.
     init(
         deeplinkTemplate: Deeplink<Value>,
         urlToParse: URL,
@@ -102,7 +102,7 @@ public extension DeeplinksCenter {
     ///
     /// See ``SampleDeeplink`` for more information.
     /// - Parameter sample: The ``SampleDeeplink`` to test.
-    func testSampleDeeplink<Value>(
+    @MainActor func testSampleDeeplink<Value>(
         _ sample: SampleDeeplink<Value>
     ) throws {
         guard let anyDeeplinkIndex = self.deeplinks

Tests/DeeplinkTests/DeeplinkBuilderTests.swift

@@ -19,6 +19,7 @@ fileprivate struct TestData2 {
     var arg2: String?
 }
 
+@MainActor
 class DeeplinkBuilderTests: XCTestCase {
 
     func testFunctionBuilder() throws {

Tests/DeeplinkTests/DeeplinksCenterTests.swift

@@ -9,6 +9,7 @@ import Foundation
 import XCTest
 @testable import Deeplink
 
+@MainActor
 class DeeplinksCenterTests: XCTestCase {
 
     struct Artist: Equatable {
@@ -360,7 +361,7 @@ class DeeplinksCenterTests: XCTestCase {
         XCTAssertNoThrow(try repo
             .parse(url: "https://ticketswap.com/test1/test3"))
 
-        waitForExpectations(timeout: 0.1, handler: nil)
+        waitForExpectations(timeout: 0.01, handler: nil)
     }
 
     func testMultipleMatchingLiteralFormatsCallSameClosure() {
@@ -462,7 +463,7 @@ class DeeplinksCenterTests: XCTestCase {
         XCTAssertNoThrow(try repo
             .parse(url: url3))
 
-        waitForExpectations(timeout: 0.1, handler: nil)
+        waitForExpectations(timeout: 0.01, handler: nil)
     }
 
     func testNoMatchFound() {
@@ -597,7 +598,7 @@ class DeeplinksCenterTests: XCTestCase {
                     deeplinkError)
         })
 
-        waitForExpectations(timeout: 0.1, handler: nil)
+        waitForExpectations(timeout: 0.01, handler: nil)
     }
 
     func testMatchingSuccessDoesNotRollToNextMatches() {