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Deprecate -warn-on-potentially-unavailable-enum-case option #1418

Merged
merged 2 commits into from
Aug 18, 2023
Merged

Deprecate -warn-on-potentially-unavailable-enum-case option #1418

merged 2 commits into from
Aug 18, 2023

Commits on Aug 18, 2023

  1. NFC: Refactor testImmediateMode() to avoid requiring Swift 5.9.

    @tshortli
    tshortli committed Aug 18, 2023
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  2. Deprecate the -warn-on-potentially-unavailable-enum-case option. 

    When `-warn-on-potentially-unavailable-enum-case` was introduced, the build
system was required to invoke `swift-frontend` at artificially low deployment
targets when emitting `.swiftinterface` files for legacy architectures. Because
the deployment target was low, some availability diagnostics needed to be
de-fanged in order to allow module interface emission to succeed. Today, the
build system is able to use the correct deployment target when emitting module
interfaces and the `-warn-on-potentially-unavailable-enum-case` is superfluous,
so deprecate it.

Resolves rdar://114092047
    @tshortli
    tshortli committed Aug 18, 2023
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