File: diag_unintended_generic_param.swift

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (24 lines) | stat: -rw-r--r-- 877 bytes parent folder | download | duplicates (2) 
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-typecheck-verify-swift

protocol Proto {
  init?(string: String)
  func foo()
}

struct TypedFoo<T: Hashable, Proto> {
  // expected-note@-1 {{did you mean to declare 'Proto' as a protocol conformance for 'T'?}} {{28-29= &}}
  func foo(value: String) {
    if let str = T.init(string:value) { // expected-error {{type 'T' has no member 'init'}}
      print(str)
    }
  }
}

func bar<T, Proto>(arg: T) { // expected-error {{generic parameter 'Proto' is not used in function signature}}
  // expected-note@-1 {{did you mean to declare 'Proto' as a protocol conformance for 'T'?}} {{11-12=:}}
  arg.foo() // expected-error {{value of type 'T' has no member 'foo'}}
}

func baz<T: Hashable, Proto>(arg: T) { // expected-error {{generic parameter 'Proto' is not used in function signature}}
  arg.ugh() // expected-error {{value of type 'T' has no member 'ugh'}}
}