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Coerce #15

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merged 4 commits into from
Nov 27, 2018
Merged

Coerce #15

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340ff58
Added coerce to be able to switch between compatible representations …
buscarini Nov 23, 2018
6d12790
Change coerce to explicitly pass the new tag. Fixed spacing issues
buscarini Nov 27, 2018
4d643fd
Renamed coerce to coerced
buscarini Nov 27, 2018
b49a448
Apply suggestions from code review
mbrandonw Nov 27, 2018
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7 changes: 7 additions & 0 deletions Sources/Tagged/Tagged.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -186,3 +186,10 @@ extension Tagged: SignedNumeric where RawValue: SignedNumeric {
// self.init(rawValue: f(elements))
// }
//}

// MARK: - Coerce
extension Tagged {
public func coerce<Tag2>() -> Tagged<Tag2, RawValue> {
return unsafeBitCast(self, to: Tagged<Tag2, RawValue>.self)
}
}
9 changes: 9 additions & 0 deletions Tests/TaggedTests/TaggedTests.swift
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Expand Up @@ -88,4 +88,13 @@ final class TaggedTests: XCTestCase {
XCTAssertEqual(containers.first?.id.rawValue, nil)
}())
}

func testCoerce() {
let x: Tagged<Tag, Int> = 1

enum Tag2 {}
let x2: Tagged<Tag2, Int> = x.coerce()
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also looks like there is some weird spacing here. we use 2 space tabs.


XCTAssertEqual(1, x2.rawValue)
}
}