File: moveonly_checker_addressonly_fail.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 (23 lines) | stat: -rw-r--r-- 957 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
 
// RUN: %target-swift-frontend -enable-experimental-move-only -verify %s -emit-sil

func useValue<T>(_ x: T) {}
func consumeValue<T>(_ x: __owned T) {}

struct GenericAggregate<T> {
    var value: T
}

func test1<T>(_ x: T) {
    @_noImplicitCopy let x2 = x // expected-error {{@_noImplicitCopy can not be used on a generic or existential typed binding or a nominal type containing such typed things}}

    // These fail b/c we use an unchecked_addr_cast to convert addresses from
    // @moveOnly to non-@moveOnly. We should change moveonly_to_copyable to
    // handle addresses as well.
    //
    // An earlier change, I believe made it so that SILGen did not emit these
    // unchecked_addr_cast.
    consumeValue(x2) // expected-error {{'x2' is borrowed and cannot be consumed}}
    // expected-note @-1 {{consumed here}}
    consumeValue(x2) // expected-error {{'x2' is borrowed and cannot be consumed}}
    // expected-note @-1 {{consumed here}}
}