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// RUN: %target-typecheck-verify-swift
// Currently disabled by default
let a = if .random() {
print("hello")
6 // expected-warning {{integer literal is unused}}
} else { // expected-error {{non-expression branch of 'if' expression may only end with a 'throw'}}
7
}
let b = if .random() {
// expected-warning@-1 {{constant 'b' inferred to have type 'Void', which may be unexpected}}
// expected-note@-2 {{add an explicit type annotation to silence this warning}}
print("hello")
if .random() { 5 } else { 6 } // expected-warning 2{{integer literal is unused}}
} else { // expected-error {{non-expression branch of 'if' expression may only end with a 'throw'}}
let x = 7
x // expected-warning {{expression of type 'Int' is unused}}
} // expected-error {{non-expression branch of 'if' expression may only end with a 'throw'}}
let c = switch Bool.random() {
// expected-warning@-1 {{constant 'c' inferred to have type 'Void', which may be unexpected}}
// expected-note@-2 {{add an explicit type annotation to silence this warning}}
case true:
print("hello")
6 // expected-warning {{integer literal is unused}}
case false: // expected-error@-1 {{non-expression branch of 'switch' expression may only end with a 'throw'}}
()
7 // expected-warning {{integer literal is unused}}
} // expected-error@-1 {{non-expression branch of 'switch' expression may only end with a 'throw'}}
let d = switch Bool.random() {
case true:
print("hello")
if .random() { 5 } else { 6 } // expected-warning 2{{integer literal is unused}}
case false: // expected-error@-1 {{non-expression branch of 'switch' expression may only end with a 'throw'}}
7
}
let e = if .random() {
// expected-warning@-1 {{constant 'e' inferred to have type 'Void', which may be unexpected}}
// expected-note@-2 {{add an explicit type annotation to silence this warning}}
if .random() {
()
1 // expected-warning {{integer literal is unused}}
} else { // expected-error {{non-expression branch of 'if' expression may only end with a 'throw'}}
()
2 // expected-warning {{integer literal is unused}}
} // expected-error {{non-expression branch of 'if' expression may only end with a 'throw'}}
} else {
switch Bool.random() {
case true:
()
0 // expected-warning {{integer literal is unused}}
case false: // expected-error@-1 {{non-expression branch of 'switch' expression may only end with a 'throw'}}
()
1 // expected-warning {{integer literal is unused}}
} // expected-error@-1 {{non-expression branch of 'switch' expression may only end with a 'throw'}}
}
func testFn1() -> Int {
print("hello")
0 // expected-warning {{integer literal is unused}}
}
func takesFn(_ fn: () -> Int) {}
func testClosure1() {
takesFn {
()
0 // expected-warning {{integer literal is unused}}
}
}
func testClosure2() {
let fn = {
()
if .random() { 0 } else { 1 } // expected-warning 2{{integer literal is unused}}
}
takesFn(fn) // expected-error {{cannot convert value of type '() -> ()' to expected argument type '() -> Int'}}
}
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