File: issue-53550.swift

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (24 lines) | stat: -rw-r--r-- 1,026 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
// RUN: %target-swift-frontend -typecheck -debug-generic-signatures %s 2>&1 | %FileCheck %s
// RUN: %target-swift-frontend -emit-ir %s

// https://github.com/apple/swift/issues/53550

// CHECK: Requirement signature: <Self where Self.[VectorSpace]Field : FieldAlgebra>
public protocol VectorSpace {
    associatedtype Field: FieldAlgebra
}

// CHECK: Requirement signature: <Self where Self : VectorSpace, Self == Self.[VectorSpace]Field, Self.[FieldAlgebra]ComparableSubalgebra : ComparableFieldAlgebra>
public protocol FieldAlgebra: VectorSpace where Self.Field == Self {
    associatedtype ComparableSubalgebra: ComparableFieldAlgebra
    static var zero: Self { get }
}

// CHECK: Requirement signature: <Self where Self : FieldAlgebra, Self == Self.[FieldAlgebra]ComparableSubalgebra>
public protocol ComparableFieldAlgebra: FieldAlgebra where Self.ComparableSubalgebra == Self {
}

// CHECK: Generic signature: <F where F : FieldAlgebra>
public func test<F: FieldAlgebra>(_ f: F) {
    _ = F.ComparableSubalgebra.zero
}