File: read_yield_local_variable.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 (27 lines) | stat: -rw-r--r-- 697 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
// RUN: %target-swift-emit-silgen %s | %FileCheck %s

func foo(x: borrowing String) {}

var last:String
{
    // CHECK-LABEL: sil{{.*}} @{{.*}}4lastSSvr :
    _read
    {
        // CHECK: [[X:%.*]] = move_value
        let x:String = ""
        // CHECK:   [[BORROW1:%.*]] = begin_borrow [[X]]
        // CHECK:   apply {{.*}}([[BORROW1]])
        // CHECK:   end_borrow [[BORROW1]]
        foo(x: x)
        // CHECK:   [[BORROW2:%.*]] = begin_borrow [[X]]
        // CHECK:   yield [[BORROW2]] : {{.*}}, resume [[RESUME:bb[0-9]+]],
        // CHECK: [[RESUME]]:
        // CHECK:   end_borrow [[BORROW2]]
        yield x
    }

    _modify {
        var x: String = ""
        yield &x
    }
}