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[HasNoncopyableAnnotationRequest] handle where

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Adds rudiementary support for searching `where` clauses for `~Copyable`
constraints, but the implementation is known to have flaws.
This commit is contained in:
Kavon Farvardin
2023-10-14 23:51:20 -07:00
parent 3d8964710c
commit 85340ea148
5 changed files with 100 additions and 23 deletions
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9
test/Generics/inverse_protocols_errors.swift
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@@ -3,7 +3,8 @@
// REQUIRES: asserts
protocol RegularProto {}
protocol NCProto: ~Copyable, RegularProto { // FIXME: diagnose the ~Copyable annotation when it's implied.
protocol NCProto: ~Copyable, RegularProto {
// expected-warning@-1 {{protocol 'NCProto' should be declared to refine 'Copyable' due to a same-type constraint on 'Self'}}
func checkIfCopyableSelf(_ s: Self)
}
@@ -40,3 +41,9 @@ struct NCThinger<T: ~Copyable>: ~Copyable, Hello {
// expected-note@-3 {{add 'inout' for a mutable reference}}
// expected-note@-4 {{add 'consuming' to take the value from the caller}}
}
struct ExtraNoncopyStruct: ~Copyable, ~Copyable {}
// expected-error@-1 {{duplicate inverse constraint}}
// expected-note@-2 {{previous inverse constraint here}}
protocol ExtraNoncopyProto: ~Copyable, ~Copyable {}