File: protocol-conformance-broken-2.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 (25 lines) | stat: -rw-r--r-- 619 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
 
// RUN: %empty-directory(%t)
// RUN: split-file %s %t
// RUN: %target-swift-frontend -typecheck -verify -primary-file %t/Usage.swift %t/Conformance.swift

//--- Conformance.swift
protocol P {
  associatedtype A: Equatable
  func f() -> A
}

extension P {
  func f() -> A { fatalError() }
}

struct S: P {}

//--- Usage.swift
func callee(_: some Equatable) {}

// FIXME: This source location will become more accurate once TypeCheckExpr
// is a request! For now, pointing at the function is still better than crashing.

func caller() { // expected-error {{type 'S' does not conform to protocol 'P'}}
  callee(S().f())
}