TestScopeExit.cpp (1308B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, 5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #include "mozilla/Assertions.h" 8 #include "mozilla/ScopeExit.h" 9 10 using mozilla::MakeScopeExit; 11 12 #define CHECK(c) \ 13 do { \ 14 bool cond = !!(c); \ 15 MOZ_RELEASE_ASSERT(cond, "Failed assertion: " #c); \ 16 if (!cond) { \ 17 return false; \ 18 } \ 19 } while (false) 20 21 static bool Test() { 22 int a = 1; 23 int b = 1; 24 int c = 1; 25 26 { 27 a++; 28 auto guardA = MakeScopeExit([&] { a--; }); 29 30 b++; 31 auto guardB = MakeScopeExit([&] { b--; }); 32 33 guardB.release(); 34 35 c++; 36 auto guardC = MakeScopeExit([&] { c--; }); 37 38 { 39 auto guardC_ = std::move(guardC); 40 } 41 42 CHECK(c == 1); 43 } 44 45 CHECK(a == 1); 46 CHECK(b == 2); 47 CHECK(c == 1); 48 49 return true; 50 } 51 52 int main() { 53 if (!Test()) { 54 return 1; 55 } 56 return 0; 57 }