llvm/unittests/ADT/ScopeExitTest.cpp
Tim Shen d8f586869a [ADT] Add make_scope_exit().
Summary: make_scope_exit() is described in C++ proposal p0052r2, which uses RAII to do cleanup works at scope exit.

Reviewers: chandlerc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D22796

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278251 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-10 17:52:09 +00:00

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//===- llvm/unittest/ADT/ScopeExit.cpp - Scope exit unit tests --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/ScopeExit.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(ScopeExitTest, Basic) {
struct Callable {
bool &Called;
Callable(bool &Called) : Called(Called) {}
Callable(Callable &&RHS) : Called(RHS.Called) {}
void operator()() { Called = true; }
};
bool Called = false;
{
auto g = make_scope_exit(Callable(Called));
EXPECT_FALSE(Called);
}
EXPECT_TRUE(Called);
}
} // end anonymous namespace