34 lines
856 B
Swift
34 lines
856 B
Swift
//
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// Component+Access.swift
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//
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//
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// Created by Christian Treffs on 25.06.19.
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//
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@dynamicMemberLookup
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public struct ReadableOnly<Comp> where Comp: Component {
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@usableFromInline let component: Comp
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public init(_ component: Comp) {
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self.component = component
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}
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@inlinable public subscript<C>(dynamicMember keyPath: KeyPath<Comp, C>) -> C {
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return component[keyPath: keyPath]
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}
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}
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@dynamicMemberLookup
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public struct Writable<Comp> where Comp: Component {
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@usableFromInline let component: Comp
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public init(_ component: Comp) {
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self.component = component
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}
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@inlinable public subscript<C>(dynamicMember keyPath: ReferenceWritableKeyPath<Comp, C>) -> C {
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nonmutating get { return component[keyPath: keyPath] }
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nonmutating set { component[keyPath: keyPath] = newValue }
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}
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}
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