mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
6f95203dfd
This is similar to SuppressedAssociatedTypes, but infers default requirements when primary associated types of protocols are suppressed. This defaulting for the primary associated types happens in extensions of the protocol, along with generic parameters, whenever a source-written requirement states a conformance requirement for the protocol. Thus, the current scheme for this defaulting is a simplistic, driven by source-written requirements, rather than facts that are inferred while building generic signatures. Defaults are not expanded for infinitely many associated types. rdar://135168163
44 lines
1.5 KiB
Swift
44 lines
1.5 KiB
Swift
// RUN: %target-typecheck-verify-swift
|
|
|
|
|
|
|
|
protocol RegularProto {}
|
|
protocol NCProto: RegularProto
|
|
where Self: ~Copyable { // expected-error{{'Self' required to be 'Copyable' but is marked with '~Copyable'}}
|
|
func checkIfCopyableSelf(_ s: Self)
|
|
}
|
|
|
|
protocol Hello: ~Copyable {
|
|
func greet(_ s: Self)
|
|
// expected-error@-1 {{parameter of noncopyable type 'Self' must specify ownership}}
|
|
// expected-note@-2 {{add 'borrowing' for an immutable reference}}
|
|
// expected-note@-3 {{add 'inout' for a mutable reference}}
|
|
// expected-note@-4 {{add 'consuming' to take the value from the caller}}
|
|
|
|
func salute(_ s: borrowing Self)
|
|
}
|
|
|
|
struct RegularStruct: Hello {
|
|
func greet(_ s: Self) {}
|
|
func salute(_ s: Self) {}
|
|
}
|
|
|
|
struct NCThinger<T: ~Copyable>: ~Copyable, Hello {
|
|
let fd: Int = 0
|
|
deinit {}
|
|
|
|
func greet(_ f: Self) {}
|
|
// expected-error@-1 {{parameter of noncopyable type 'NCThinger<T>' must specify ownership}}
|
|
// expected-note@-2 {{add 'borrowing' for an immutable reference}}
|
|
// expected-note@-3 {{add 'inout' for a mutable reference}}
|
|
// expected-note@-4 {{add 'consuming' to take the value from the caller}}
|
|
|
|
func salute(_ s: borrowing Self) {}
|
|
|
|
func setThinger(_ t: T) {}
|
|
// expected-error@-1 {{parameter of noncopyable type 'T' must specify ownership}}
|
|
// expected-note@-2 {{add 'borrowing' for an immutable reference}}
|
|
// expected-note@-3 {{add 'inout' for a mutable reference}}
|
|
// expected-note@-4 {{add 'consuming' to take the value from the caller}}
|
|
}
|