Lower the 'TestCases' protocol to internal #104
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stmontgomery
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@swift-ci please test |
grynspan
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This was referenced Nov 16, 2023
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…wer OS versions This fixes a build failure seen when attempting to build for macOS/iOS versions older than 13.0/16.0, respectively, which was introduced in #104. This introduces a type-erasing wrapper, which fixes the failure and also improves the `Test.testCases` derived property by allowing it to use `some` instead of `any` and further constraining the return type to `Sendable`.
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…wer OS versions (#121) This fixes a build failure seen when attempting to build for macOS/iOS versions older than 13.0/16.0, respectively, which was introduced in #104. This introduces a type-erasing wrapper, which fixes the failure and also improves the `Test.testCases` derived property by allowing it to use `some` instead of `any` and further constraining the return type to `Sendable`.
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Lower the access level of the
TestCasesprotocol from@_spi publictointernal(implicitly).Motivation:
Due to some limitations in Swift's type system, we currently need a protocol named
TestCasesas a workaround to type-erase our sequence of test cases so that it can be constrained toSendable(see comment). But because theTest.testCasesispublic, that protocol also needs to match its access level. Since this protocol is just a workaround, we'd rather not expose the protocol and only expose a property returning aSequenceof test case instances onTest.Modifications:
Test._testCasesas aprivatestored property of type(any TestCases)?.Test.testCasesto a computed property which conditionally down-castsself._testCases.TestCasesprotocol tointernal.Result:
The
TestCasesprotocol is no longer exposed, and the type of the computedTest.testCasesproperty isany Sequence<Test.Case>.Checklist: