File: rdar77462797.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 (30 lines) | stat: -rw-r--r-- 864 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
25
26
27
28
29
30
 
// RUN: %target-typecheck-verify-swift
// RUN: %target-swift-frontend -typecheck %s -debug-generic-signatures 2>&1 | %FileCheck %s

protocol P {}

protocol Q {
  associatedtype T : P
}

class S<T : P> : Q {}

struct G<X, Y> where X : Q {
  // no redundancies
  func foo1() where X == S<Y> {}
  // CHECK: Generic signature: <X, Y where X == S<Y>, Y : P>

  func foo2() where X == S<Y>, Y : P {} 
  // CHECK: Generic signature: <X, Y where X == S<Y>, Y : P>

  // 'X : Q' is redundant
  func foo3() where X : Q, X == S<Y>, Y : P {}
  // CHECK: Generic signature: <X, Y where X == S<Y>, Y : P>

  // 'T.T : P' is redundant
  func foo4<T : Q>(_: T) where X == S<Y>, T.T : P {}
  // CHECK: Generic signature: <X, Y, T where X == S<Y>, Y : P, T : Q>
}

func foo<X, Y>(_: X, _: Y) where X : Q, X : S<Y>, Y : P {}
// CHECK: Generic signature: <X, Y where X : S<Y>, Y : P>