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//===- unittests/Basic/FileEntryTest.cpp - Test FileEntry/FileEntryRef ----===//
//
// 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 "clang/Basic/FileEntry.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/StringMap.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace clang;
namespace {
using FileMap = StringMap<llvm::ErrorOr<FileEntryRef::MapValue>>;
using DirMap = StringMap<llvm::ErrorOr<DirectoryEntry &>>;
struct RefMaps {
FileMap Files;
DirMap Dirs;
SmallVector<std::unique_ptr<FileEntry>, 5> FEs;
SmallVector<std::unique_ptr<DirectoryEntry>, 5> DEs;
DirectoryEntryRef DR;
RefMaps() : DR(addDirectory("dir")) {}
DirectoryEntryRef addDirectory(StringRef Name) {
DEs.push_back(std::make_unique<DirectoryEntry>());
return DirectoryEntryRef(*Dirs.insert({Name, *DEs.back()}).first);
}
DirectoryEntryRef addDirectoryAlias(StringRef Name, DirectoryEntryRef Base) {
return DirectoryEntryRef(
*Dirs.insert({Name, const_cast<DirectoryEntry &>(Base.getDirEntry())})
.first);
}
FileEntryRef addFile(StringRef Name) {
FEs.push_back(std::make_unique<FileEntry>());
return FileEntryRef(
*Files.insert({Name, FileEntryRef::MapValue(*FEs.back().get(), DR)})
.first);
}
FileEntryRef addFileAlias(StringRef Name, FileEntryRef Base) {
return FileEntryRef(
*Files
.insert(
{Name, FileEntryRef::MapValue(
const_cast<FileEntry &>(Base.getFileEntry()), DR)})
.first);
}
};
TEST(FileEntryTest, Constructor) {
FileEntry FE;
EXPECT_EQ(0, FE.getSize());
EXPECT_EQ(0, FE.getModificationTime());
EXPECT_EQ(nullptr, FE.getDir());
EXPECT_EQ(0U, FE.getUniqueID().getDevice());
EXPECT_EQ(0U, FE.getUniqueID().getFile());
EXPECT_EQ(false, FE.isNamedPipe());
EXPECT_EQ(false, FE.isValid());
}
TEST(FileEntryTest, FileEntryRef) {
RefMaps Refs;
FileEntryRef R1 = Refs.addFile("1");
FileEntryRef R2 = Refs.addFile("2");
FileEntryRef R1Also = Refs.addFileAlias("1-also", R1);
EXPECT_EQ("1", R1.getName());
EXPECT_EQ("2", R2.getName());
EXPECT_EQ("1-also", R1Also.getName());
EXPECT_NE(&R1.getFileEntry(), &R2.getFileEntry());
EXPECT_EQ(&R1.getFileEntry(), &R1Also.getFileEntry());
const FileEntry *CE1 = R1;
EXPECT_EQ(CE1, &R1.getFileEntry());
}
TEST(FileEntryTest, OptionalFileEntryRefDegradesToFileEntryPtr) {
RefMaps Refs;
OptionalFileEntryRefDegradesToFileEntryPtr M0;
OptionalFileEntryRefDegradesToFileEntryPtr M1 = Refs.addFile("1");
OptionalFileEntryRefDegradesToFileEntryPtr M2 = Refs.addFile("2");
OptionalFileEntryRefDegradesToFileEntryPtr M0Also = None;
OptionalFileEntryRefDegradesToFileEntryPtr M1Also =
Refs.addFileAlias("1-also", *M1);
EXPECT_EQ(M0, M0Also);
EXPECT_EQ(StringRef("1"), M1->getName());
EXPECT_EQ(StringRef("2"), M2->getName());
EXPECT_EQ(StringRef("1-also"), M1Also->getName());
const FileEntry *CE1 = M1;
EXPECT_EQ(CE1, &M1->getFileEntry());
}
TEST(FileEntryTest, equals) {
RefMaps Refs;
FileEntryRef R1 = Refs.addFile("1");
FileEntryRef R2 = Refs.addFile("2");
FileEntryRef R1Also = Refs.addFileAlias("1-also", R1);
EXPECT_EQ(R1, &R1.getFileEntry());
EXPECT_EQ(&R1.getFileEntry(), R1);
EXPECT_EQ(R1, R1Also);
EXPECT_NE(R1, &R2.getFileEntry());
EXPECT_NE(&R2.getFileEntry(), R1);
EXPECT_NE(R1, R2);
OptionalFileEntryRefDegradesToFileEntryPtr M1 = R1;
EXPECT_EQ(M1, &R1.getFileEntry());
EXPECT_EQ(&R1.getFileEntry(), M1);
EXPECT_NE(M1, &R2.getFileEntry());
EXPECT_NE(&R2.getFileEntry(), M1);
}
TEST(FileEntryTest, isSameRef) {
RefMaps Refs;
FileEntryRef R1 = Refs.addFile("1");
FileEntryRef R2 = Refs.addFile("2");
FileEntryRef R1Also = Refs.addFileAlias("1-also", R1);
EXPECT_TRUE(R1.isSameRef(FileEntryRef(R1)));
EXPECT_TRUE(R1.isSameRef(FileEntryRef(R1.getMapEntry())));
EXPECT_FALSE(R1.isSameRef(R2));
EXPECT_FALSE(R1.isSameRef(R1Also));
}
TEST(FileEntryTest, DenseMapInfo) {
RefMaps Refs;
FileEntryRef R1 = Refs.addFile("1");
FileEntryRef R2 = Refs.addFile("2");
FileEntryRef R1Also = Refs.addFileAlias("1-also", R1);
// Insert R1Also first and confirm it "wins".
{
SmallDenseSet<FileEntryRef, 8> Set;
Set.insert(R1Also);
Set.insert(R1);
Set.insert(R2);
EXPECT_TRUE(Set.find(R1Also)->isSameRef(R1Also));
EXPECT_TRUE(Set.find(R1)->isSameRef(R1Also));
EXPECT_TRUE(Set.find(R2)->isSameRef(R2));
}
// Insert R1Also second and confirm R1 "wins".
{
SmallDenseSet<FileEntryRef, 8> Set;
Set.insert(R1);
Set.insert(R1Also);
Set.insert(R2);
EXPECT_TRUE(Set.find(R1Also)->isSameRef(R1));
EXPECT_TRUE(Set.find(R1)->isSameRef(R1));
EXPECT_TRUE(Set.find(R2)->isSameRef(R2));
}
}
TEST(DirectoryEntryTest, isSameRef) {
RefMaps Refs;
DirectoryEntryRef R1 = Refs.addDirectory("1");
DirectoryEntryRef R2 = Refs.addDirectory("2");
DirectoryEntryRef R1Also = Refs.addDirectoryAlias("1-also", R1);
EXPECT_TRUE(R1.isSameRef(DirectoryEntryRef(R1)));
EXPECT_TRUE(R1.isSameRef(DirectoryEntryRef(R1.getMapEntry())));
EXPECT_FALSE(R1.isSameRef(R2));
EXPECT_FALSE(R1.isSameRef(R1Also));
}
TEST(DirectoryEntryTest, DenseMapInfo) {
RefMaps Refs;
DirectoryEntryRef R1 = Refs.addDirectory("1");
DirectoryEntryRef R2 = Refs.addDirectory("2");
DirectoryEntryRef R1Also = Refs.addDirectoryAlias("1-also", R1);
// Insert R1Also first and confirm it "wins".
{
SmallDenseSet<DirectoryEntryRef, 8> Set;
Set.insert(R1Also);
Set.insert(R1);
Set.insert(R2);
EXPECT_TRUE(Set.find(R1Also)->isSameRef(R1Also));
EXPECT_TRUE(Set.find(R1)->isSameRef(R1Also));
EXPECT_TRUE(Set.find(R2)->isSameRef(R2));
}
// Insert R1Also second and confirm R1 "wins".
{
SmallDenseSet<DirectoryEntryRef, 8> Set;
Set.insert(R1);
Set.insert(R1Also);
Set.insert(R2);
EXPECT_TRUE(Set.find(R1Also)->isSameRef(R1));
EXPECT_TRUE(Set.find(R1)->isSameRef(R1));
EXPECT_TRUE(Set.find(R2)->isSameRef(R2));
}
}
} // end namespace
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