Doug Gregor 7d21bc332a [Embedded] Diagnose untyped throws as an Embedded Swift restriction ...

Untyped throws depends on existentials (`any Error`), and is therefore
not available in Embedded Swift. Introduce a diagnostic that diagnoses
any use of untyped throws, suggesting that one use typed throws
instead.

Make this an opt-in diagnostic enabled with `-Wwarning
EmbeddedRestrictions`, whether in Embedded Swift or not, using the
"default ignore" flag on these new warnings. Document this new
diagnostic group, and put the existing Embedded Swift error about
weak/unowned references in it as well.

Part of the general push to have the type checker identify code that
will not compile as Embedded Swift earlier, rdar://133874555.

2025-09-14 21:48:50 -07:00

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diagnostics

[Embedded] Diagnose untyped throws as an Embedded Swift restriction

2025-09-14 21:48:50 -07:00

CMakeLists.txt

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