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llvm-mirror/unittests/Support/FSUniqueIDTest.cpp
Duncan P. N. Exon Smith 538ee6c38c Support: Avoid std::tie in Support/FileSystem/UniqueID.h, NFC
Running `-fsyntax-only` on UniqueID.h is 2x faster with this patch
(which avoids calling `std::tie` for `operator<`).  Since the transitive
includers of this file will go up as `FileEntryRef` gets used in more
places, avoid that compile-time hit.  This is a follow-up to
23ed570af1cc165afea1b70a533a4a39d6656501 (suggested by Reid Kleckner).

Also drop the `<tuple>` include from FileSystem.h (which was vestigal
from before UniqueID.h was split out).

Differential Revision: https://reviews.llvm.org/D90471
2020-11-02 13:26:15 -05:00

39 lines
1.2 KiB
C++

//===- llvm/unittest/Support/FSUniqueIDTest.cpp - Test sys::fs::UniqueID --===//
//
// 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/Support/FileSystem/UniqueID.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace llvm::sys::fs;
namespace {
TEST(FSUniqueIDTest, construct) {
EXPECT_EQ(20u, UniqueID(20, 10).getDevice());
EXPECT_EQ(10u, UniqueID(20, 10).getFile());
}
TEST(FSUniqueIDTest, equals) {
EXPECT_TRUE(UniqueID(20, 10) == UniqueID(20, 10));
EXPECT_FALSE(UniqueID(20, 20) == UniqueID(20, 10));
EXPECT_FALSE(UniqueID(10, 10) == UniqueID(20, 10));
}
TEST(FSUniqueIDTest, less) {
EXPECT_FALSE(UniqueID(20, 2) < UniqueID(20, 2));
EXPECT_FALSE(UniqueID(20, 3) < UniqueID(20, 2));
EXPECT_FALSE(UniqueID(30, 2) < UniqueID(20, 2));
EXPECT_FALSE(UniqueID(30, 2) < UniqueID(20, 40));
EXPECT_TRUE(UniqueID(20, 2) < UniqueID(20, 3));
EXPECT_TRUE(UniqueID(20, 2) < UniqueID(30, 2));
EXPECT_TRUE(UniqueID(20, 40) < UniqueID(30, 2));
}
} // anonymous namespace