| // RUN: %target-swift-frontend %s -typecheck -verify |
| // RUN: %target-swift-frontend %s -emit-ir -o /dev/null |
| |
| // SR-5601 |
| protocol P1 { |
| associatedtype X: P3 where X.Q == Self, X.R == UInt8 |
| associatedtype Y: P3 where Y.Q == Self, Y.R == UInt16 |
| // NOTE: Removing either X or Y from P1 (and A) makes the program compile. |
| } |
| struct A: P1 { |
| typealias X = S<UInt8> |
| typealias Y = S<UInt16> |
| } |
| protocol P2 { } |
| protocol P3 : P2 { // NOTE: Removing ": P2 " here makes the program compile. |
| associatedtype Q: P1 |
| associatedtype R |
| } |
| struct S<E> : P3 { |
| typealias R = E |
| typealias Q = A |
| } |
| |
| |
