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Gate SwiftUI code with
#if canImport (#75)
* Gate SwiftUI code with `#if canImport` * wip * wip * wip * wip * wip * wip * wip * wip * wip * wip * wip * wip
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,74 +1,76 @@ | ||
| import SwiftUI | ||
| #if canImport(SwiftUI) | ||
| import SwiftUI | ||
|
|
||
| @available(iOS, introduced: 13, obsoleted: 17) | ||
| @available(macOS, introduced: 10.15, obsoleted: 14) | ||
| @available(tvOS, introduced: 13, obsoleted: 17) | ||
| @available(watchOS, introduced: 6, obsoleted: 10) | ||
| @available(visionOS, unavailable) | ||
| extension Environment { | ||
| /// Creates an environment property to read a perceptible object from the environment. | ||
| /// | ||
| /// A backport of SwiftUI's `Environment.init` that takes an observable object. | ||
| /// | ||
| /// - Parameter objectType: The type of the `Perceptible` object to read from the environment. | ||
| @_disfavoredOverload | ||
| public init(_ objectType: Value.Type) where Value: AnyObject & Perceptible { | ||
| self.init(\.[unwrap: \Value.self]) | ||
| } | ||
| @available(iOS, introduced: 13, obsoleted: 17) | ||
| @available(macOS, introduced: 10.15, obsoleted: 14) | ||
| @available(tvOS, introduced: 13, obsoleted: 17) | ||
| @available(watchOS, introduced: 6, obsoleted: 10) | ||
| @available(visionOS, unavailable) | ||
| extension Environment { | ||
| /// Creates an environment property to read a perceptible object from the environment. | ||
| /// | ||
| /// A backport of SwiftUI's `Environment.init` that takes an observable object. | ||
| /// | ||
| /// - Parameter objectType: The type of the `Perceptible` object to read from the environment. | ||
| @_disfavoredOverload | ||
| public init(_ objectType: Value.Type) where Value: AnyObject & Perceptible { | ||
| self.init(\.[unwrap: \Value.self]) | ||
| } | ||
|
|
||
| /// Creates an environment property to read a perceptible object from the environment, returning | ||
| /// `nil` if no corresponding object has been set in the current view's environment. | ||
| /// | ||
| /// A backport of SwiftUI's `Environment.init` that takes an observable object. | ||
| /// | ||
| /// - Parameter objectType: The type of the `Perceptible` object to read from the environment. | ||
| @_disfavoredOverload | ||
| public init<T: AnyObject & Perceptible>(_ objectType: T.Type) where Value == T? { | ||
| self.init(\.[\T.self]) | ||
| /// Creates an environment property to read a perceptible object from the environment, returning | ||
| /// `nil` if no corresponding object has been set in the current view's environment. | ||
| /// | ||
| /// A backport of SwiftUI's `Environment.init` that takes an observable object. | ||
| /// | ||
| /// - Parameter objectType: The type of the `Perceptible` object to read from the environment. | ||
| @_disfavoredOverload | ||
| public init<T: AnyObject & Perceptible>(_ objectType: T.Type) where Value == T? { | ||
| self.init(\.[\T.self]) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| @available(iOS, introduced: 13, obsoleted: 17) | ||
| @available(macOS, introduced: 10.15, obsoleted: 14) | ||
| @available(tvOS, introduced: 13, obsoleted: 17) | ||
| @available(watchOS, introduced: 6, obsoleted: 10) | ||
| @available(visionOS, unavailable) | ||
| extension View { | ||
| /// Places a perceptible object in the view’s environment. | ||
| /// | ||
| /// A backport of SwiftUI's `View.environment` that takes an observable object. | ||
| /// | ||
| /// - Parameter object: The object to set for this object's type in the environment, or `nil` to | ||
| /// clear an object of this type from the environment. | ||
| /// - Returns: A view that has the specified object in its environment. | ||
| @_disfavoredOverload | ||
| public func environment<T: AnyObject & Perceptible>(_ object: T?) -> some View { | ||
| self.environment(\.[\T.self], object) | ||
| @available(iOS, introduced: 13, obsoleted: 17) | ||
| @available(macOS, introduced: 10.15, obsoleted: 14) | ||
| @available(tvOS, introduced: 13, obsoleted: 17) | ||
| @available(watchOS, introduced: 6, obsoleted: 10) | ||
| @available(visionOS, unavailable) | ||
| extension View { | ||
| /// Places a perceptible object in the view’s environment. | ||
| /// | ||
| /// A backport of SwiftUI's `View.environment` that takes an observable object. | ||
| /// | ||
| /// - Parameter object: The object to set for this object's type in the environment, or `nil` to | ||
| /// clear an object of this type from the environment. | ||
| /// - Returns: A view that has the specified object in its environment. | ||
| @_disfavoredOverload | ||
| public func environment<T: AnyObject & Perceptible>(_ object: T?) -> some View { | ||
| self.environment(\.[\T.self], object) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private struct PerceptibleKey<T: Perceptible>: EnvironmentKey { | ||
| static var defaultValue: T? { nil } | ||
| } | ||
|
|
||
| extension EnvironmentValues { | ||
| fileprivate subscript<T: Perceptible>(_: KeyPath<T, T>) -> T? { | ||
| get { self[PerceptibleKey<T>.self] } | ||
| set { self[PerceptibleKey<T>.self] = newValue } | ||
| private struct PerceptibleKey<T: Perceptible>: EnvironmentKey { | ||
| static var defaultValue: T? { nil } | ||
| } | ||
|
|
||
| fileprivate subscript<T: Perceptible>(unwrap _: KeyPath<T, T>) -> T { | ||
| get { | ||
| guard let object = self[\T.self] else { | ||
| fatalError( | ||
| """ | ||
| No perceptible object of type \(T.self) found. A View.environment(_:) for \(T.self) may \ | ||
| be missing as an ancestor of this view. | ||
| """ | ||
| ) | ||
| extension EnvironmentValues { | ||
| fileprivate subscript<T: Perceptible>(_: KeyPath<T, T>) -> T? { | ||
| get { self[PerceptibleKey<T>.self] } | ||
| set { self[PerceptibleKey<T>.self] = newValue } | ||
| } | ||
|
|
||
| fileprivate subscript<T: Perceptible>(unwrap _: KeyPath<T, T>) -> T { | ||
| get { | ||
| guard let object = self[\T.self] else { | ||
| fatalError( | ||
| """ | ||
| No perceptible object of type \(T.self) found. A View.environment(_:) for \(T.self) may \ | ||
| be missing as an ancestor of this view. | ||
| """ | ||
| ) | ||
| } | ||
| return object | ||
| } | ||
| return object | ||
| set { self[\T.self] = newValue } | ||
| } | ||
| set { self[\T.self] = newValue } | ||
| } | ||
| } | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,8 @@ | ||
| @_exported import Observation | ||
| #if canImport(Observation) | ||
| @_exported import Observation | ||
| @available(macOS 14, iOS 17, watchOS 10, tvOS 17, *) | ||
| public typealias _Observable = Observation.Observable | ||
| #else | ||
| @available(macOS 14, iOS 17, watchOS 10, tvOS 17, *) | ||
| public protocol _Observable {} | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| @available(iOS, deprecated: 17) | ||
| @available(macOS, deprecated: 14) | ||
| @available(tvOS, deprecated: 17) | ||
| @available(visionOS, deprecated: 9999) | ||
| @available(watchOS, deprecated: 10) | ||
| public enum _PerceptionLocals { | ||
| @TaskLocal public static var isInPerceptionTracking = false | ||
| @TaskLocal public static var skipPerceptionChecking = false | ||
| } |
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