Files
swift-mirror/test/ModuleInterface/protocol-with-self-constraint.swift
Slava Pestov 3f8ef30185 RequirementMachine: Preserve sugared generic params in getSuperclassBound() and getConcreteType()
This was manifesting as module interfaces printing generic parameters
as `τ_0_0` in some cases.

Note that the GSB has the same bug, so this test case will fail with
-requirement-machine=off. I don't plan on fixing the bug in the GSB
unless we need to.

Fixes rdar://problem/78977127.
2021-09-29 14:39:38 -04:00

26 lines
1019 B
Swift

// RUN: %empty-directory(%t)
// RUN: %target-build-swift -emit-module -o %t/Test.swiftmodule -emit-module-interface-path %t/Test.swiftinterface -module-name Test -enable-library-evolution -swift-version 5 %s
// RUN: %FileCheck %s < %t/Test.swiftinterface
public protocol P {
}
public class Foo<T> : P {
public struct Nested {}
}
extension P {
public static func blah1<T>(_: Self) where Self == Foo<T> {}
public static func blah2<T>(_: Self.Nested) where Self == Foo<T> {}
public static func blah3<T>(_: Self) where Self : Foo<T> {}
public static func blah4<T>(_: Self.Nested) where Self : Foo<T> {}
}
// CHECK-LABEL: extension Test.P {
// CHECK-NEXT: public static func blah1<T>(_: Self) where Self == Test.Foo<T>
// CHECK-NEXT: public static func blah2<T>(_: Test.Foo<T>.Nested) where Self == Test.Foo<T>
// CHECK-NEXT: public static func blah3<T>(_: Self) where Self : Test.Foo<T>
// CHECK-NEXT: public static func blah4<T>(_: Test.Foo<T>.Nested) where Self : Test.Foo<T>
// CHECK-NEXT: }