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llvm-mirror/unittests/ADT/FunctionRefTest.cpp
Jonas Devlieghere 2c693415b7 [llvm] Migrate llvm::make_unique to std::make_unique
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.

llvm-svn: 369013
2019-08-15 15:54:37 +00:00

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//===- llvm/unittest/ADT/MakeUniqueTest.cpp - std::make_unique unit tests ------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/STLExtras.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
// Ensure that there is a default constructor and we can test for a null
// function_ref.
TEST(FunctionRefTest, Null) {
function_ref<int()> F;
EXPECT_FALSE(F);
auto L = [] { return 1; };
F = L;
EXPECT_TRUE(F);
F = {};
EXPECT_FALSE(F);
}
// Ensure that copies of a function_ref copy the underlying state rather than
// causing one function_ref to chain to the next.
TEST(FunctionRefTest, Copy) {
auto A = [] { return 1; };
auto B = [] { return 2; };
function_ref<int()> X = A;
function_ref<int()> Y = X;
X = B;
EXPECT_EQ(1, Y());
}
}