[VER] Bump up Swift compiler version to 5.7.1 to follow Apple's policy (#140)

* [VER] Bump up Swift compiler version to 5.7.1

* [MOD] Modified swiftwasm version to use over 5.7.0 package

Author: x-0o0

.github/workflows/ci.yml

@@ -62,7 +62,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - run: echo "${{ matrix.toolchain }}" > .swift-version
-      - uses: swiftwasm/swiftwasm-action@v5.7
+      - uses: swiftwasm/swiftwasm-action@v5.8
         with:
           shell-action: carton test --environment node
 

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 5.6
+// swift-tools-version: 5.7.1
 
 import PackageDescription
 

Sources/Dependencies/DependencyKey.swift

@@ -120,13 +120,7 @@ public protocol DependencyKey: TestDependencyKey {
 /// See ``DependencyKey`` to define a static, default value for the live application.
 public protocol TestDependencyKey {
   /// The associated type representing the type of the dependency key's value.
-  #if swift(>=5.7.1)
-    associatedtype Value: Sendable = Self
-  #else
-    // NB: Can't constrain to `Sendable` on earlier Swift versions due to this bug:
-    //     https://github.com/apple/swift/issues/60649
-    associatedtype Value = Self
-  #endif
+  associatedtype Value: Sendable = Self
 
   /// The preview value for the dependency key.
   ///

Sources/Dependencies/DependencyValues/Clocks.swift

@@ -1,4 +1,4 @@
-#if swift(>=5.7) && (canImport(RegexBuilder) || !os(macOS) && !targetEnvironment(macCatalyst))
+#if (canImport(RegexBuilder) || !os(macOS) && !targetEnvironment(macCatalyst))
   @available(iOS 16, macOS 13, tvOS 16, watchOS 9, *)
   extension DependencyValues {
     /// The current clock that features should use when a `ContinuousClock` would be appropriate.

Sources/Dependencies/Internal/OpenExistential.swift

@@ -1,27 +1,3 @@
-#if swift(>=5.7)
-  // MARK: swift(>=5.7)
-
-  func _liveValue(_ key: Any.Type) -> Any? {
-    (key as? any DependencyKey.Type)?.liveValue
-  }
-#else
-  // MARK: -
-  // MARK: swift(<5.7)
-
-  private enum Witness<T> {}
-
-  func _liveValue(_ key: Any.Type) -> Any? {
-    func open<T>(_: T.Type) -> Any? {
-      (Witness<T>.self as? AnyDependencyKey.Type)?.liveValue
-    }
-    return _openExistential(key, do: open)
-  }
-
-  protocol AnyDependencyKey {
-    static var liveValue: Any { get }
-  }
-
-  extension Witness: AnyDependencyKey where T: DependencyKey {
-    static var liveValue: Any { T.liveValue }
-  }
-#endif
+func _liveValue(_ key: Any.Type) -> Any? {
+  (key as? any DependencyKey.Type)?.liveValue
+}

Sources/Dependencies/WithDependencies.swift

@@ -39,67 +39,45 @@ public func withDependencies<R>(
   }
 }
 
-#if swift(>=5.7)
-  /// Updates the current dependencies for the duration of an asynchronous operation.
-  ///
-  /// Any mutations made to ``DependencyValues`` inside `updateValuesForOperation` will be visible
-  /// to everything executed in the operation. For example, if you wanted to force the
-  /// ``DependencyValues/date`` dependency to be a particular date, you can do:
-  ///
-  /// ```swift
-  /// await withDependencies {
-  ///   $0.date.now = Date(timeIntervalSince1970: 1234567890)
-  /// } operation: {
-  ///   // References to date in here are pinned to 1234567890.
-  /// }
-  /// ```
-  ///
-  /// - Parameters:
-  ///   - updateValuesForOperation: A closure for updating the current dependency values for the
-  ///     duration of the operation.
-  ///   - operation: An operation to perform wherein dependencies have been overridden.
-  /// - Returns: The result returned from `operation`.
-  @_unsafeInheritExecutor
-  @discardableResult
-  public func withDependencies<R>(
-    _ updateValuesForOperation: (inout DependencyValues) async throws -> Void,
-    operation: () async throws -> R
-  ) async rethrows -> R {
-    try await isSetting(true) {
-      var dependencies = DependencyValues._current
-      try await updateValuesForOperation(&dependencies)
-      return try await DependencyValues.$_current.withValue(dependencies) {
-        try await isSetting(false) {
-          let result = try await operation()
-          if R.self is AnyClass {
-            dependencyObjects.store(result as AnyObject)
-          }
-          return result
-        }
-      }
-    }
-  }
-#else
-  @discardableResult
-  public func withDependencies<R>(
-    _ updateValuesForOperation: (inout DependencyValues) async throws -> Void,
-    operation: () async throws -> R
-  ) async rethrows -> R {
-    try await isSetting(true) {
-      var dependencies = DependencyValues._current
-      try await updateValuesForOperation(&dependencies)
-      return try await DependencyValues.$_current.withValue(dependencies) {
-        try await isSetting(false) {
-          let result = try await operation()
-          if R.self is AnyClass {
-            dependencyObjects.store(result as AnyObject)
-          }
-          return result
+/// Updates the current dependencies for the duration of an asynchronous operation.
+///
+/// Any mutations made to ``DependencyValues`` inside `updateValuesForOperation` will be visible
+/// to everything executed in the operation. For example, if you wanted to force the
+/// ``DependencyValues/date`` dependency to be a particular date, you can do:
+///
+/// ```swift
+/// await withDependencies {
+///   $0.date.now = Date(timeIntervalSince1970: 1234567890)
+/// } operation: {
+///   // References to date in here are pinned to 1234567890.
+/// }
+/// ```
+///
+/// - Parameters:
+///   - updateValuesForOperation: A closure for updating the current dependency values for the
+///     duration of the operation.
+///   - operation: An operation to perform wherein dependencies have been overridden.
+/// - Returns: The result returned from `operation`.
+@_unsafeInheritExecutor
+@discardableResult
+public func withDependencies<R>(
+  _ updateValuesForOperation: (inout DependencyValues) async throws -> Void,
+  operation: () async throws -> R
+) async rethrows -> R {
+  try await isSetting(true) {
+    var dependencies = DependencyValues._current
+    try await updateValuesForOperation(&dependencies)
+    return try await DependencyValues.$_current.withValue(dependencies) {
+      try await isSetting(false) {
+        let result = try await operation()
+        if R.self is AnyClass {
+          dependencyObjects.store(result as AnyObject)
         }
+        return result
       }
     }
   }
-#endif
+}
 
 /// Updates the current dependencies for the duration of a synchronous operation by taking the
 /// dependencies tied to a given object.
@@ -168,129 +146,76 @@ public func withDependencies<Model: AnyObject, R>(
   )
 }
 
-#if swift(>=5.7)
-  /// Updates the current dependencies for the duration of an asynchronous operation by taking the
-  /// dependencies tied to a given object.
-  ///
-  /// - Parameters:
-  ///   - model: An object with dependencies. The given model should have at least one `@Dependency`
-  ///     property, or should have been initialized and returned from a `withDependencies`
-  ///       operation.
-  ///   - updateValuesForOperation: A closure for updating the current dependency values for the
-  ///     duration of the operation.
-  ///   - operation: The operation to run with the updated dependencies.
-  /// - Returns: The result returned from `operation`.
-  @_unsafeInheritExecutor
-  @discardableResult
-  public func withDependencies<Model: AnyObject, R>(
-    from model: Model,
-    _ updateValuesForOperation: (inout DependencyValues) async throws -> Void,
-    operation: () async throws -> R,
-    file: StaticString? = nil,
-    line: UInt? = nil
-  ) async rethrows -> R {
-    guard let values = dependencyObjects.values(from: model)
-    else {
-      runtimeWarn(
-        """
-        You are trying to propagate dependencies to a child model from a model with no \
-        dependencies. To fix this, the given '\(Model.self)' must be returned from another \
-        'withDependencies' closure, or the class must hold at least one '@Dependency' property.
-        """,
-        file: file,
-        line: line
-      )
-      return try await operation()
-    }
-    return try await withDependencies {
-      $0 = values.merging(DependencyValues._current)
-      try await updateValuesForOperation(&$0)
-    } operation: {
-      let result = try await operation()
-      if R.self is AnyClass {
-        dependencyObjects.store(result as AnyObject)
-      }
-      return result
-    }
-  }
-#else
-  @discardableResult
-  public func withDependencies<Model: AnyObject, R>(
-    from model: Model,
-    _ updateValuesForOperation: (inout DependencyValues) async throws -> Void,
-    operation: () async throws -> R,
-    file: StaticString? = nil,
-    line: UInt? = nil
-  ) async rethrows -> R {
-    guard let values = dependencyObjects.values(from: model)
-    else {
-      runtimeWarn(
-        """
-        You are trying to propagate dependencies to a child model from a model with no \
-        dependencies. To fix this, the given '\(Model.self)' must be returned from another \
-        'withDependencies' closure, or the class must hold at least one '@Dependency' property.
-        """,
-        file: file,
-        line: line
-      )
-      return try await operation()
-    }
-    return try await withDependencies {
-      $0 = values.merging(DependencyValues._current)
-      try await updateValuesForOperation(&$0)
-    } operation: {
-      let result = try await operation()
-      if R.self is AnyClass {
-        dependencyObjects.store(result as AnyObject)
-      }
-      return result
-    }
-  }
-#endif
-
-#if swift(>=5.7)
-  /// Updates the current dependencies for the duration of an asynchronous operation by taking the
-  /// dependencies tied to a given object.
-  ///
-  /// - Parameters:
-  ///   - model: An object with dependencies. The given model should have at least one `@Dependency`
-  ///     property, or should have been initialized and returned from a `withDependencies`
-  ///     operation.
-  ///   - operation: The operation to run with the updated dependencies.
-  /// - Returns: The result returned from `operation`.
-  @_unsafeInheritExecutor
-  @discardableResult
-  public func withDependencies<Model: AnyObject, R>(
-    from model: Model,
-    operation: () async throws -> R,
-    file: StaticString? = nil,
-    line: UInt? = nil
-  ) async rethrows -> R {
-    try await withDependencies(
-      from: model,
-      { _ in },
-      operation: operation,
+/// Updates the current dependencies for the duration of an asynchronous operation by taking the
+/// dependencies tied to a given object.
+///
+/// - Parameters:
+///   - model: An object with dependencies. The given model should have at least one `@Dependency`
+///     property, or should have been initialized and returned from a `withDependencies`
+///       operation.
+///   - updateValuesForOperation: A closure for updating the current dependency values for the
+///     duration of the operation.
+///   - operation: The operation to run with the updated dependencies.
+/// - Returns: The result returned from `operation`.
+@_unsafeInheritExecutor
+@discardableResult
+public func withDependencies<Model: AnyObject, R>(
+  from model: Model,
+  _ updateValuesForOperation: (inout DependencyValues) async throws -> Void,
+  operation: () async throws -> R,
+  file: StaticString? = nil,
+  line: UInt? = nil
+) async rethrows -> R {
+  guard let values = dependencyObjects.values(from: model)
+  else {
+    runtimeWarn(
+      """
+      You are trying to propagate dependencies to a child model from a model with no \
+      dependencies. To fix this, the given '\(Model.self)' must be returned from another \
+      'withDependencies' closure, or the class must hold at least one '@Dependency' property.
+      """,
       file: file,
       line: line
     )
+    return try await operation()
   }
-#else
-  @discardableResult
-  public func withDependencies<Model: AnyObject, R>(
-    from model: Model,
-    operation: () async throws -> R,
-    file: StaticString? = nil,
-    line: UInt? = nil
-  ) async rethrows -> R {
-    try await withDependencies(
-      from: model,
-      { _ in },
-      operation: operation,
-      file: file,
-      line: line
-    )
+  return try await withDependencies {
+    $0 = values.merging(DependencyValues._current)
+    try await updateValuesForOperation(&$0)
+  } operation: {
+    let result = try await operation()
+    if R.self is AnyClass {
+      dependencyObjects.store(result as AnyObject)
+    }
+    return result
   }
-#endif
+}
+
+/// Updates the current dependencies for the duration of an asynchronous operation by taking the
+/// dependencies tied to a given object.
+///
+/// - Parameters:
+///   - model: An object with dependencies. The given model should have at least one `@Dependency`
+///     property, or should have been initialized and returned from a `withDependencies`
+///     operation.
+///   - operation: The operation to run with the updated dependencies.
+/// - Returns: The result returned from `operation`.
+@_unsafeInheritExecutor
+@discardableResult
+public func withDependencies<Model: AnyObject, R>(
+  from model: Model,
+  operation: () async throws -> R,
+  file: StaticString? = nil,
+  line: UInt? = nil
+) async rethrows -> R {
+  try await withDependencies(
+    from: model,
+    { _ in },
+    operation: operation,
+    file: file,
+    line: line
+  )
+}
 
 /// Propagates the current dependencies to an escaping context.
 ///