| // RUN: %empty-directory(%t) |
| // RUN: %target-build-swift -swift-version 3 %s -o %t/a.out -enforce-exclusivity=checked -Onone |
| // |
| // RUN: %target-run %t/a.out 2>&1 | %FileCheck %s |
| // REQUIRES: executable_test |
| // REQUIRES: OS=macosx |
| |
| import StdlibUnittest |
| import SwiftPrivatePthreadExtras |
| import Foundation |
| |
| struct X { |
| var i = 7 |
| } |
| |
| func readAndPerform<T>(_ _: UnsafePointer<T>, closure: () ->()) { |
| closure() |
| } |
| |
| func writeAndPerform<T>(_ _: UnsafeMutablePointer<T>, closure: () ->()) { |
| closure() |
| } |
| |
| var globalX = X() |
| withUnsafePointer(to: &globalX) { _ = fputs(String(format: "globalX: 0x%lx\n", Int(bitPattern: $0)), stderr) } |
| // CHECK: globalX: [[ADDR:0x.*]] |
| |
| fputs("Global Access\n", stderr); |
| readAndPerform(&globalX) { |
| globalX = X() |
| // CHECK-LABEL: Global Access |
| // CHECK: Simultaneous accesses to [[ADDR]], but modification requires exclusive access. |
| // CHECK: Previous access (a read) started at a.out`main + {{.*}} (0x{{.*}}). |
| // CHECK: Current access (a modification) started at: |
| // CHECK: a.out {{.*}} closure |
| // CHECK: a.out {{.*}} readAndPerform |
| // CHECK: a.out {{.*}} main |
| } |
| |
| class C { |
| final var f = 7 |
| } |
| |
| var c = C() |
| withUnsafePointer(to: &c.f) { _ = fputs(String(format: "c.f: 0x%lx\n", Int(bitPattern: $0)), stderr) } |
| // CHECK: c.f: [[C_F_ADDR:0x.*]] |
