mirror of
https://github.com/vector-im/element-ios.git
synced 2024-09-30 16:22:39 +00:00
43 lines
1.6 KiB
Swift
43 lines
1.6 KiB
Swift
//
|
|
// Copyright 2021 New Vector Ltd
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
/// A property wrapped used to inject from the dependency container on the instance, to instance properties.
|
|
///
|
|
/// ```
|
|
/// @Inject var someClass: SomeClass
|
|
/// ```
|
|
@propertyWrapper struct Inject<Value> {
|
|
static subscript<T: Injectable>(_enclosingInstance instance: T,
|
|
wrapped wrappedKeyPath: ReferenceWritableKeyPath<T, Value>,
|
|
storage storageKeyPath: ReferenceWritableKeyPath<T, Self>) -> Value {
|
|
get {
|
|
// Resolve dependencies from enclosing instance's `dependencies` property
|
|
let v: Value = instance.dependencies.resolve()
|
|
return v
|
|
}
|
|
set {
|
|
fatalError("Only subscript get is supported for injection")
|
|
}
|
|
}
|
|
|
|
@available(*, unavailable, message: "This property wrapper can only be applied to classes")
|
|
var wrappedValue: Value {
|
|
get { fatalError("wrappedValue get not used") }
|
|
set { fatalError("wrappedValue set not used. \(newValue)") }
|
|
}
|
|
}
|