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Support Swift 5.1 toolchains #29

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Jun 4, 2019
Merged

Support Swift 5.1 toolchains #29

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9 changes: 8 additions & 1 deletion MobiusCore/Source/NoEffect.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,14 @@ import Foundation
/// conformance is just to allow the type to be used where required. Such as with the `First` and `Next` data
/// structures.
public enum NoEffect: Equatable, Hashable {
public static func == (lhs: NoEffect, rhs: NoEffect) -> Bool { return true }
public static func == (lhs: NoEffect, rhs: NoEffect) -> Bool {
#if compiler(>=5.1)
// #if compiler(<5.1) doesn’t work in the Xcode 10.1 toolchain
#else
// This is required in earlier compiler versions, but a warning in newer ones
return true
#endif
}
public var hashValue: Int { return 0 }
public func hash(into hasher: inout Hasher) {}
}