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4b31382d67
This responds to some feedback on the forums. Most importantly this allows for us to use variadic generics in the the type system to document whether we allow for "appending" behavior or not. Previously, for some options we would take the last behavior (and theoretically) for others would have silently had appending behavior. This just makes the behavior simple and more explicit.
25 lines
1.4 KiB
Swift
25 lines
1.4 KiB
Swift
// RUN: %target-swift-frontend -enable-experimental-feature SwiftSettings -enable-experimental-feature Macros -c -swift-version 6 -disable-availability-checking -verify %s
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// REQUIRES: asserts
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// REQUIRES: concurrency
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// REQUIRES: swift_feature_Macros
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// REQUIRES: swift_feature_SwiftSettings
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// This test specifically tests the behavior of #SwiftSettings when we find
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// multiple instances of the same setting.
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actor MyActor {}
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#SwiftSettings(.defaultIsolation(MainActor.self), // expected-note 6 {{setting originally passed here}}
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.defaultIsolation(nil)) // expected-error {{duplicate setting passed to #SwiftSettings}}
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#SwiftSettings(.defaultIsolation(nil)) // expected-error {{duplicate setting passed to #SwiftSettings}}
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#SwiftSettings(.defaultIsolation(MyActor.self)) // expected-error {{duplicate setting passed to #SwiftSettings}}
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#SwiftSettings(.defaultIsolation(1)) // expected-error {{duplicate setting passed to #SwiftSettings}}
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// expected-error @-1 {{cannot convert value of type 'Int' to expected argument type 'any Actor.Type'}}
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#SwiftSettings(2) // expected-error {{Unrecognized setting passed to #SwiftSettings}}
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// expected-error @-1 {{cannot convert value of type 'Int' to expected argument type 'SwiftSetting'}}
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#SwiftSettings(.defaultIsolation(MainActor.self), // expected-error {{duplicate setting passed to #SwiftSettings}}
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.defaultIsolation(nil)) // expected-error {{duplicate setting passed to #SwiftSettings}}
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