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John Estropia
2019-10-08 21:09:34 +09:00
parent b073b7e795
commit d5114fc4bc
13 changed files with 1393 additions and 225 deletions
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288
Sources/LiveQuery.swift
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@@ -23,143 +23,151 @@
// SOFTWARE.
//
#if canImport(SwiftUI) && canImport(Combine)
import CoreData
import Combine
import SwiftUI
#warning("TODO: autoupdating doesn't work yet")
@available(iOS 13.0, tvOS 13.0, watchOS 6.0, macOS 15.0, *)
@propertyWrapper
public struct LiveQuery<Result: LiveResult>: DynamicProperty {
// MARK: Public
@Environment(\.dataStack)
public var dataStack: DataStack
public typealias ObjectType = Result.ObjectType
// MARK: @propertyWrapper
public fileprivate(set) var wrappedValue: Result {
get {
return self.nonMutatingWrappedValue.wrappedValue
}
set {
self.nonMutatingWrappedValue = LazyNonmutating { newValue }
}
}
public var projectedValue: Result {
return self.wrappedValue
}
// MARK: DynamicProperty
public mutating func update() {
SwiftUI.withAnimation {
let dataStack = self.dataStack
if self.set(dataStack: dataStack) {
return
}
self.wrappedValue = self.newWrappedValue(dataStack)
}
}
// MARK: FilePrivate
fileprivate let newWrappedValue: (DataStack) -> Result
fileprivate init(newWrappedValue: @escaping (DataStack) -> Result) {
self.newWrappedValue = newWrappedValue
}
// MARK: Private
private var nonMutatingWrappedValue: LazyNonmutating<Result> = .init { fatalError() }
private var currentDataStack: DataStack?
private mutating func set(dataStack: DataStack) -> Bool {
guard self.currentDataStack != dataStack else {
return false
}
self.currentDataStack = dataStack
let newWrappedValue = self.newWrappedValue
self.nonMutatingWrappedValue = LazyNonmutating<Result> {
newWrappedValue(dataStack)
}
return true
}
// MARK: - LazyNonmutating
fileprivate final class LazyNonmutating<Value> {
// MARK: FilePrivate
lazy var wrappedValue: Value = self.initializer()
init(_ initializer: @escaping () -> Value) {
self.initializer = initializer
}
// MARK: Private
private var initializer: () -> Value
}
}
#if canImport(UIKit) || canImport(AppKit)
@available(iOS 13.0, tvOS 13.0, watchOS 6.0, macOS 15.0, *)
extension LiveQuery {
public init<D: DynamicObject>(liveList: LiveList<D>) where Result == LiveList<D> {
self.init(
newWrappedValue: { _ in liveList }
)
}
public init<D: DynamicObject>(_ clauseChain: FetchChainBuilder<D>) where Result == LiveList<D> {
self.init(
newWrappedValue: { $0.liveList(clauseChain) }
)
}
public init<D: DynamicObject>(_ clauseChain: SectionMonitorChainBuilder<D>) where Result == LiveList<D> {
self.init(
newWrappedValue: { $0.liveList(clauseChain) }
)
}
}
#endif
#endif
//#if canImport(SwiftUI) && canImport(Combine)
//
//import CoreData
//import Combine
//import SwiftUI
//
//
//#warning("TODO: autoupdating doesn't work yet")
//@available(iOS 13.0, tvOS 13.0, watchOS 6.0, macOS 15.0, *)
//@propertyWrapper
//public struct LiveQuery<Result: LiveResult>: DynamicProperty {
//
// // MARK: Public
//
// @Environment(\.dataStack)
// public var dataStack: DataStack
//
// public typealias ObjectType = Result.ObjectType
//
//
// // MARK: @propertyWrapper
//
// public var wrappedValue: Result {
//
// get {
//
// return self.backingWrapper!.wrappedValue
// }
// set {
//
// self.backingWrapper!.wrappedValue = newValue
// }
// }
//
// public var projectedValue: ObservedObject<Result>.Wrapper {
//
// return self.backingWrapper!.projectedValue
// }
//
//
// // MARK: DynamicProperty
//
// public mutating func update() {
//
// SwiftUI.withAnimation {
//
// let dataStack = self.dataStack
//
// if self.backingWrapper == nil {
//
// self.backingWrapper = ObservedObject(wrappedValue: self.newLiveResult(dataStack))
// }
// else {
//
// self.backingWrapper!.wrappedValue = self.newLiveResult(dataStack)
// }
// self.backingWrapper!.update()
// }
// }
//
//
// // MARK: FilePrivate
//
// fileprivate let newLiveResult: (DataStack) -> Result
//
// fileprivate init(newLiveResult: @escaping (DataStack) -> Result) {
//
// self.newLiveResult = newLiveResult
// }
//
//
// // MARK: Private
//
//// private var nonMutatingWrappedValue: LazyNonmutating<Result> = .init { fatalError() }
//
// private var currentDataStack: DataStack?
// private var backingWrapper: ObservedObject<Result>?
//
// private mutating func set(dataStack: DataStack) -> Bool {
//
// guard self.currentDataStack != dataStack else {
//
// return false
// }
// self.currentDataStack = dataStack
// if self.backingWrapper == nil {
//
// self.backingWrapper = ObservedObject(wrappedValue: self.newLiveResult(dataStack))
// }
// else {
//
// self.backingWrapper?.wrappedValue = self.newLiveResult(dataStack)
// }
// return true
// }
//
//
// // MARK: - LazyNonmutating
//
// fileprivate final class LazyNonmutating<Value> {
//
// // MARK: FilePrivate
//
// lazy var wrappedValue: Value = self.initializer()
//
// init(_ initializer: @escaping () -> Value) {
//
// self.initializer = initializer
// }
//
//
// // MARK: Private
//
// private var initializer: () -> Value
// }
//}
//
//
//#if canImport(UIKit) || canImport(AppKit)
//
//@available(iOS 13.0, tvOS 13.0, watchOS 6.0, macOS 15.0, *)
//extension LiveQuery {
//
// public init<D: DynamicObject>(liveList: LiveList<D>) where Result == LiveList<D> {
//
// self.init(
// newLiveResult: { _ in liveList }
// )
// }
//
// public init<D: DynamicObject>(_ clauseChain: FetchChainBuilder<D>) where Result == LiveList<D> {
//
// self.init(
// newLiveResult: { $0.liveList(clauseChain) }
// )
// }
//
// public init<D: DynamicObject>(_ clauseChain: SectionMonitorChainBuilder<D>) where Result == LiveList<D> {
//
// self.init(
// newLiveResult: { $0.liveList(clauseChain) }
// )
// }
//}
//
//#endif
//
//#endif