swift-mirror/test/Parse/library_evolution_feature.swift at revert-85403-wip-ret-rel-perf - swift-mirror - Gitea: Git with a cup of tea

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Doug Gregor c68ef1cf71 Add an optional language feature for Library Evolution

Replace the one-off compiler flag for Library Evolution with an
optional language feature. This makes the
`hasFeature(LibraryEvolution)` check work in an `#if`, and is
otherwise just cleanup.

Tracked by rdar://161125572.

2025-09-22 17:45:34 -07:00

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Swift

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 // RUN: %target-typecheck-verify-swift -enable-library-evolution
 #if hasFeature(LibraryEvolution)
 #else
 #error("Missing feature")
 #endif