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-rw-r--r--clang/unittests/Basic/FileManagerTest.cpp223
-rw-r--r--clang/unittests/Basic/Makefile15
-rw-r--r--clang/unittests/Basic/SourceManagerTest.cpp296
3 files changed, 534 insertions, 0 deletions
diff --git a/clang/unittests/Basic/FileManagerTest.cpp b/clang/unittests/Basic/FileManagerTest.cpp
new file mode 100644
index 0000000..91998b6
--- /dev/null
+++ b/clang/unittests/Basic/FileManagerTest.cpp
@@ -0,0 +1,223 @@
+//===- unittests/Basic/FileMangerTest.cpp ------------ FileManger tests ---===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Basic/FileSystemOptions.h"
+#include "clang/Basic/FileSystemStatCache.h"
+#include "clang/Basic/FileManager.h"
+
+#include "gtest/gtest.h"
+
+using namespace llvm;
+using namespace clang;
+
+namespace {
+
+// Used to create a fake file system for running the tests with such
+// that the tests are not affected by the structure/contents of the
+// file system on the machine running the tests.
+class FakeStatCache : public FileSystemStatCache {
+private:
+ // Maps a file/directory path to its desired stat result. Anything
+ // not in this map is considered to not exist in the file system.
+ llvm::StringMap<struct stat, llvm::BumpPtrAllocator> StatCalls;
+
+ void InjectFileOrDirectory(const char *Path, ino_t INode, bool IsFile) {
+ struct stat statBuf;
+ memset(&statBuf, 0, sizeof(statBuf));
+ statBuf.st_dev = 1;
+#ifndef _WIN32 // struct stat has no st_ino field on Windows.
+ statBuf.st_ino = INode;
+#endif
+ statBuf.st_mode = IsFile ? (0777 | S_IFREG) // a regular file
+ : (0777 | S_IFDIR); // a directory
+ StatCalls[Path] = statBuf;
+ }
+
+public:
+ // Inject a file with the given inode value to the fake file system.
+ void InjectFile(const char *Path, ino_t INode) {
+ InjectFileOrDirectory(Path, INode, /*IsFile=*/true);
+ }
+
+ // Inject a directory with the given inode value to the fake file system.
+ void InjectDirectory(const char *Path, ino_t INode) {
+ InjectFileOrDirectory(Path, INode, /*IsFile=*/false);
+ }
+
+ // Implement FileSystemStatCache::getStat().
+ virtual LookupResult getStat(const char *Path, struct stat &StatBuf,
+ int *FileDescriptor) {
+ if (StatCalls.count(Path) != 0) {
+ StatBuf = StatCalls[Path];
+ return CacheExists;
+ }
+
+ return CacheMissing; // This means the file/directory doesn't exist.
+ }
+};
+
+// The test fixture.
+class FileManagerTest : public ::testing::Test {
+ protected:
+ FileManagerTest() : manager(options) {
+ }
+
+ FileSystemOptions options;
+ FileManager manager;
+};
+
+// When a virtual file is added, its getDir() field is set correctly
+// (not NULL, correct name).
+TEST_F(FileManagerTest, getVirtualFileSetsTheDirFieldCorrectly) {
+ const FileEntry *file = manager.getVirtualFile("foo.cpp", 42, 0);
+ ASSERT_TRUE(file != NULL);
+
+ const DirectoryEntry *dir = file->getDir();
+ ASSERT_TRUE(dir != NULL);
+ EXPECT_STREQ(".", dir->getName());
+
+ file = manager.getVirtualFile("x/y/z.cpp", 42, 0);
+ ASSERT_TRUE(file != NULL);
+
+ dir = file->getDir();
+ ASSERT_TRUE(dir != NULL);
+ EXPECT_STREQ("x/y", dir->getName());
+}
+
+// Before any virtual file is added, no virtual directory exists.
+TEST_F(FileManagerTest, NoVirtualDirectoryExistsBeforeAVirtualFileIsAdded) {
+ // An empty FakeStatCache causes all stat calls made by the
+ // FileManager to report "file/directory doesn't exist". This
+ // avoids the possibility of the result of this test being affected
+ // by what's in the real file system.
+ manager.addStatCache(new FakeStatCache);
+
+ EXPECT_EQ(NULL, manager.getDirectory("virtual/dir/foo"));
+ EXPECT_EQ(NULL, manager.getDirectory("virtual/dir"));
+ EXPECT_EQ(NULL, manager.getDirectory("virtual"));
+}
+
+// When a virtual file is added, all of its ancestors should be created.
+TEST_F(FileManagerTest, getVirtualFileCreatesDirectoryEntriesForAncestors) {
+ // Fake an empty real file system.
+ manager.addStatCache(new FakeStatCache);
+
+ manager.getVirtualFile("virtual/dir/bar.h", 100, 0);
+ EXPECT_EQ(NULL, manager.getDirectory("virtual/dir/foo"));
+
+ const DirectoryEntry *dir = manager.getDirectory("virtual/dir");
+ ASSERT_TRUE(dir != NULL);
+ EXPECT_STREQ("virtual/dir", dir->getName());
+
+ dir = manager.getDirectory("virtual");
+ ASSERT_TRUE(dir != NULL);
+ EXPECT_STREQ("virtual", dir->getName());
+}
+
+// getFile() returns non-NULL if a real file exists at the given path.
+TEST_F(FileManagerTest, getFileReturnsValidFileEntryForExistingRealFile) {
+ // Inject fake files into the file system.
+ FakeStatCache *statCache = new FakeStatCache;
+ statCache->InjectDirectory("/tmp", 42);
+ statCache->InjectFile("/tmp/test", 43);
+ manager.addStatCache(statCache);
+
+ const FileEntry *file = manager.getFile("/tmp/test");
+ ASSERT_TRUE(file != NULL);
+ EXPECT_STREQ("/tmp/test", file->getName());
+
+ const DirectoryEntry *dir = file->getDir();
+ ASSERT_TRUE(dir != NULL);
+ EXPECT_STREQ("/tmp", dir->getName());
+}
+
+// getFile() returns non-NULL if a virtual file exists at the given path.
+TEST_F(FileManagerTest, getFileReturnsValidFileEntryForExistingVirtualFile) {
+ // Fake an empty real file system.
+ manager.addStatCache(new FakeStatCache);
+
+ manager.getVirtualFile("virtual/dir/bar.h", 100, 0);
+ const FileEntry *file = manager.getFile("virtual/dir/bar.h");
+ ASSERT_TRUE(file != NULL);
+ EXPECT_STREQ("virtual/dir/bar.h", file->getName());
+
+ const DirectoryEntry *dir = file->getDir();
+ ASSERT_TRUE(dir != NULL);
+ EXPECT_STREQ("virtual/dir", dir->getName());
+}
+
+// getFile() returns different FileEntries for different paths when
+// there's no aliasing.
+TEST_F(FileManagerTest, getFileReturnsDifferentFileEntriesForDifferentFiles) {
+ // Inject two fake files into the file system. Different inodes
+ // mean the files are not symlinked together.
+ FakeStatCache *statCache = new FakeStatCache;
+ statCache->InjectDirectory(".", 41);
+ statCache->InjectFile("foo.cpp", 42);
+ statCache->InjectFile("bar.cpp", 43);
+ manager.addStatCache(statCache);
+
+ const FileEntry *fileFoo = manager.getFile("foo.cpp");
+ const FileEntry *fileBar = manager.getFile("bar.cpp");
+ ASSERT_TRUE(fileFoo != NULL);
+ ASSERT_TRUE(fileBar != NULL);
+ EXPECT_NE(fileFoo, fileBar);
+}
+
+// getFile() returns NULL if neither a real file nor a virtual file
+// exists at the given path.
+TEST_F(FileManagerTest, getFileReturnsNULLForNonexistentFile) {
+ // Inject a fake foo.cpp into the file system.
+ FakeStatCache *statCache = new FakeStatCache;
+ statCache->InjectDirectory(".", 41);
+ statCache->InjectFile("foo.cpp", 42);
+ manager.addStatCache(statCache);
+
+ // Create a virtual bar.cpp file.
+ manager.getVirtualFile("bar.cpp", 200, 0);
+
+ const FileEntry *file = manager.getFile("xyz.txt");
+ EXPECT_EQ(NULL, file);
+}
+
+// The following tests apply to Unix-like system only.
+
+#ifndef _WIN32
+
+// getFile() returns the same FileEntry for real files that are aliases.
+TEST_F(FileManagerTest, getFileReturnsSameFileEntryForAliasedRealFiles) {
+ // Inject two real files with the same inode.
+ FakeStatCache *statCache = new FakeStatCache;
+ statCache->InjectDirectory("abc", 41);
+ statCache->InjectFile("abc/foo.cpp", 42);
+ statCache->InjectFile("abc/bar.cpp", 42);
+ manager.addStatCache(statCache);
+
+ EXPECT_EQ(manager.getFile("abc/foo.cpp"), manager.getFile("abc/bar.cpp"));
+}
+
+// getFile() returns the same FileEntry for virtual files that have
+// corresponding real files that are aliases.
+TEST_F(FileManagerTest, getFileReturnsSameFileEntryForAliasedVirtualFiles) {
+ // Inject two real files with the same inode.
+ FakeStatCache *statCache = new FakeStatCache;
+ statCache->InjectDirectory("abc", 41);
+ statCache->InjectFile("abc/foo.cpp", 42);
+ statCache->InjectFile("abc/bar.cpp", 42);
+ manager.addStatCache(statCache);
+
+ manager.getVirtualFile("abc/foo.cpp", 100, 0);
+ manager.getVirtualFile("abc/bar.cpp", 200, 0);
+
+ EXPECT_EQ(manager.getFile("abc/foo.cpp"), manager.getFile("abc/bar.cpp"));
+}
+
+#endif // !_WIN32
+
+} // anonymous namespace
diff --git a/clang/unittests/Basic/Makefile b/clang/unittests/Basic/Makefile
new file mode 100644
index 0000000..82de790
--- /dev/null
+++ b/clang/unittests/Basic/Makefile
@@ -0,0 +1,15 @@
+##===- unittests/Basic/Makefile ----------------------------*- Makefile -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+
+CLANG_LEVEL = ../..
+TESTNAME = Basic
+LINK_COMPONENTS := support mc
+USEDLIBS = clangLex.a clangBasic.a
+
+include $(CLANG_LEVEL)/unittests/Makefile
diff --git a/clang/unittests/Basic/SourceManagerTest.cpp b/clang/unittests/Basic/SourceManagerTest.cpp
new file mode 100644
index 0000000..429b58d
--- /dev/null
+++ b/clang/unittests/Basic/SourceManagerTest.cpp
@@ -0,0 +1,296 @@
+//===- unittests/Basic/SourceManagerTest.cpp ------ SourceManager tests ---===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Basic/SourceManager.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Basic/Diagnostic.h"
+#include "clang/Basic/LangOptions.h"
+#include "clang/Basic/TargetOptions.h"
+#include "clang/Basic/TargetInfo.h"
+#include "clang/Lex/ModuleLoader.h"
+#include "clang/Lex/HeaderSearch.h"
+#include "clang/Lex/Preprocessor.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Config/config.h"
+
+#include "gtest/gtest.h"
+
+using namespace llvm;
+using namespace clang;
+
+namespace {
+
+// The test fixture.
+class SourceManagerTest : public ::testing::Test {
+protected:
+ SourceManagerTest()
+ : FileMgr(FileMgrOpts),
+ DiagID(new DiagnosticIDs()),
+ Diags(DiagID, new IgnoringDiagConsumer()),
+ SourceMgr(Diags, FileMgr) {
+ TargetOpts.Triple = "x86_64-apple-darwin11.1.0";
+ Target = TargetInfo::CreateTargetInfo(Diags, TargetOpts);
+ }
+
+ FileSystemOptions FileMgrOpts;
+ FileManager FileMgr;
+ IntrusiveRefCntPtr<DiagnosticIDs> DiagID;
+ DiagnosticsEngine Diags;
+ SourceManager SourceMgr;
+ LangOptions LangOpts;
+ TargetOptions TargetOpts;
+ IntrusiveRefCntPtr<TargetInfo> Target;
+};
+
+class VoidModuleLoader : public ModuleLoader {
+ virtual Module *loadModule(SourceLocation ImportLoc, ModuleIdPath Path,
+ Module::NameVisibilityKind Visibility,
+ bool IsInclusionDirective) {
+ return 0;
+ }
+};
+
+TEST_F(SourceManagerTest, isBeforeInTranslationUnit) {
+ const char *source =
+ "#define M(x) [x]\n"
+ "M(foo)";
+ MemoryBuffer *buf = MemoryBuffer::getMemBuffer(source);
+ FileID mainFileID = SourceMgr.createMainFileIDForMemBuffer(buf);
+
+ VoidModuleLoader ModLoader;
+ HeaderSearch HeaderInfo(FileMgr, Diags, LangOpts, &*Target);
+ Preprocessor PP(Diags, LangOpts,
+ Target.getPtr(),
+ SourceMgr, HeaderInfo, ModLoader,
+ /*IILookup =*/ 0,
+ /*OwnsHeaderSearch =*/false,
+ /*DelayInitialization =*/ false);
+ PP.EnterMainSourceFile();
+
+ std::vector<Token> toks;
+ while (1) {
+ Token tok;
+ PP.Lex(tok);
+ if (tok.is(tok::eof))
+ break;
+ toks.push_back(tok);
+ }
+
+ // Make sure we got the tokens that we expected.
+ ASSERT_EQ(3U, toks.size());
+ ASSERT_EQ(tok::l_square, toks[0].getKind());
+ ASSERT_EQ(tok::identifier, toks[1].getKind());
+ ASSERT_EQ(tok::r_square, toks[2].getKind());
+
+ SourceLocation lsqrLoc = toks[0].getLocation();
+ SourceLocation idLoc = toks[1].getLocation();
+ SourceLocation rsqrLoc = toks[2].getLocation();
+
+ SourceLocation macroExpStartLoc = SourceMgr.translateLineCol(mainFileID, 2, 1);
+ SourceLocation macroExpEndLoc = SourceMgr.translateLineCol(mainFileID, 2, 6);
+ ASSERT_TRUE(macroExpStartLoc.isFileID());
+ ASSERT_TRUE(macroExpEndLoc.isFileID());
+
+ SmallString<32> str;
+ ASSERT_EQ("M", PP.getSpelling(macroExpStartLoc, str));
+ ASSERT_EQ(")", PP.getSpelling(macroExpEndLoc, str));
+
+ EXPECT_TRUE(SourceMgr.isBeforeInTranslationUnit(lsqrLoc, idLoc));
+ EXPECT_TRUE(SourceMgr.isBeforeInTranslationUnit(idLoc, rsqrLoc));
+ EXPECT_TRUE(SourceMgr.isBeforeInTranslationUnit(macroExpStartLoc, idLoc));
+ EXPECT_TRUE(SourceMgr.isBeforeInTranslationUnit(idLoc, macroExpEndLoc));
+}
+
+#if defined(LLVM_ON_UNIX)
+
+TEST_F(SourceManagerTest, getMacroArgExpandedLocation) {
+ const char *header =
+ "#define FM(x,y) x\n";
+
+ const char *main =
+ "#include \"/test-header.h\"\n"
+ "#define VAL 0\n"
+ "FM(VAL,0)\n"
+ "FM(0,VAL)\n"
+ "FM(FM(0,VAL),0)\n"
+ "#define CONCAT(X, Y) X##Y\n"
+ "CONCAT(1,1)\n";
+
+ MemoryBuffer *headerBuf = MemoryBuffer::getMemBuffer(header);
+ MemoryBuffer *mainBuf = MemoryBuffer::getMemBuffer(main);
+ FileID mainFileID = SourceMgr.createMainFileIDForMemBuffer(mainBuf);
+
+ const FileEntry *headerFile = FileMgr.getVirtualFile("/test-header.h",
+ headerBuf->getBufferSize(), 0);
+ SourceMgr.overrideFileContents(headerFile, headerBuf);
+
+ VoidModuleLoader ModLoader;
+ HeaderSearch HeaderInfo(FileMgr, Diags, LangOpts, &*Target);
+ Preprocessor PP(Diags, LangOpts,
+ Target.getPtr(),
+ SourceMgr, HeaderInfo, ModLoader,
+ /*IILookup =*/ 0,
+ /*OwnsHeaderSearch =*/false,
+ /*DelayInitialization =*/ false);
+ PP.EnterMainSourceFile();
+
+ std::vector<Token> toks;
+ while (1) {
+ Token tok;
+ PP.Lex(tok);
+ if (tok.is(tok::eof))
+ break;
+ toks.push_back(tok);
+ }
+
+ // Make sure we got the tokens that we expected.
+ ASSERT_EQ(4U, toks.size());
+ ASSERT_EQ(tok::numeric_constant, toks[0].getKind());
+ ASSERT_EQ(tok::numeric_constant, toks[1].getKind());
+ ASSERT_EQ(tok::numeric_constant, toks[2].getKind());
+ ASSERT_EQ(tok::numeric_constant, toks[3].getKind());
+
+ SourceLocation defLoc = SourceMgr.translateLineCol(mainFileID, 2, 13);
+ SourceLocation loc1 = SourceMgr.translateLineCol(mainFileID, 3, 8);
+ SourceLocation loc2 = SourceMgr.translateLineCol(mainFileID, 4, 4);
+ SourceLocation loc3 = SourceMgr.translateLineCol(mainFileID, 5, 7);
+ SourceLocation defLoc2 = SourceMgr.translateLineCol(mainFileID, 6, 22);
+ defLoc = SourceMgr.getMacroArgExpandedLocation(defLoc);
+ loc1 = SourceMgr.getMacroArgExpandedLocation(loc1);
+ loc2 = SourceMgr.getMacroArgExpandedLocation(loc2);
+ loc3 = SourceMgr.getMacroArgExpandedLocation(loc3);
+ defLoc2 = SourceMgr.getMacroArgExpandedLocation(defLoc2);
+
+ EXPECT_TRUE(defLoc.isFileID());
+ EXPECT_TRUE(loc1.isFileID());
+ EXPECT_TRUE(SourceMgr.isMacroArgExpansion(loc2));
+ EXPECT_TRUE(SourceMgr.isMacroArgExpansion(loc3));
+ EXPECT_EQ(loc2, toks[1].getLocation());
+ EXPECT_EQ(loc3, toks[2].getLocation());
+ EXPECT_TRUE(defLoc2.isFileID());
+}
+
+namespace {
+
+struct MacroAction {
+ SourceLocation Loc;
+ std::string Name;
+ bool isDefinition; // if false, it is expansion.
+
+ MacroAction(SourceLocation Loc, StringRef Name, bool isDefinition)
+ : Loc(Loc), Name(Name), isDefinition(isDefinition) { }
+};
+
+class MacroTracker : public PPCallbacks {
+ std::vector<MacroAction> &Macros;
+
+public:
+ explicit MacroTracker(std::vector<MacroAction> &Macros) : Macros(Macros) { }
+
+ virtual void MacroDefined(const Token &MacroNameTok, const MacroInfo *MI) {
+ Macros.push_back(MacroAction(MI->getDefinitionLoc(),
+ MacroNameTok.getIdentifierInfo()->getName(),
+ true));
+ }
+ virtual void MacroExpands(const Token &MacroNameTok, const MacroInfo* MI,
+ SourceRange Range) {
+ Macros.push_back(MacroAction(MacroNameTok.getLocation(),
+ MacroNameTok.getIdentifierInfo()->getName(),
+ false));
+ }
+};
+
+}
+
+TEST_F(SourceManagerTest, isBeforeInTranslationUnitWithMacroInInclude) {
+ const char *header =
+ "#define MACRO_IN_INCLUDE 0\n";
+
+ const char *main =
+ "#define M(x) x\n"
+ "#define INC \"/test-header.h\"\n"
+ "#include M(INC)\n"
+ "#define INC2 </test-header.h>\n"
+ "#include M(INC2)\n";
+
+ MemoryBuffer *headerBuf = MemoryBuffer::getMemBuffer(header);
+ MemoryBuffer *mainBuf = MemoryBuffer::getMemBuffer(main);
+ SourceMgr.createMainFileIDForMemBuffer(mainBuf);
+
+ const FileEntry *headerFile = FileMgr.getVirtualFile("/test-header.h",
+ headerBuf->getBufferSize(), 0);
+ SourceMgr.overrideFileContents(headerFile, headerBuf);
+
+ VoidModuleLoader ModLoader;
+ HeaderSearch HeaderInfo(FileMgr, Diags, LangOpts, &*Target);
+ Preprocessor PP(Diags, LangOpts,
+ Target.getPtr(),
+ SourceMgr, HeaderInfo, ModLoader,
+ /*IILookup =*/ 0,
+ /*OwnsHeaderSearch =*/false,
+ /*DelayInitialization =*/ false);
+
+ std::vector<MacroAction> Macros;
+ PP.addPPCallbacks(new MacroTracker(Macros));
+
+ PP.EnterMainSourceFile();
+
+ std::vector<Token> toks;
+ while (1) {
+ Token tok;
+ PP.Lex(tok);
+ if (tok.is(tok::eof))
+ break;
+ toks.push_back(tok);
+ }
+
+ // Make sure we got the tokens that we expected.
+ ASSERT_EQ(0U, toks.size());
+
+ ASSERT_EQ(9U, Macros.size());
+ // #define M(x) x
+ ASSERT_TRUE(Macros[0].isDefinition);
+ ASSERT_EQ("M", Macros[0].Name);
+ // #define INC "/test-header.h"
+ ASSERT_TRUE(Macros[1].isDefinition);
+ ASSERT_EQ("INC", Macros[1].Name);
+ // M expansion in #include M(INC)
+ ASSERT_FALSE(Macros[2].isDefinition);
+ ASSERT_EQ("M", Macros[2].Name);
+ // INC expansion in #include M(INC)
+ ASSERT_FALSE(Macros[3].isDefinition);
+ ASSERT_EQ("INC", Macros[3].Name);
+ // #define MACRO_IN_INCLUDE 0
+ ASSERT_TRUE(Macros[4].isDefinition);
+ ASSERT_EQ("MACRO_IN_INCLUDE", Macros[4].Name);
+ // #define INC2 </test-header.h>
+ ASSERT_TRUE(Macros[5].isDefinition);
+ ASSERT_EQ("INC2", Macros[5].Name);
+ // M expansion in #include M(INC2)
+ ASSERT_FALSE(Macros[6].isDefinition);
+ ASSERT_EQ("M", Macros[6].Name);
+ // INC2 expansion in #include M(INC2)
+ ASSERT_FALSE(Macros[7].isDefinition);
+ ASSERT_EQ("INC2", Macros[7].Name);
+ // #define MACRO_IN_INCLUDE 0
+ ASSERT_TRUE(Macros[8].isDefinition);
+ ASSERT_EQ("MACRO_IN_INCLUDE", Macros[8].Name);
+
+ // The INC expansion in #include M(INC) comes before the first
+ // MACRO_IN_INCLUDE definition of the included file.
+ EXPECT_TRUE(SourceMgr.isBeforeInTranslationUnit(Macros[3].Loc, Macros[4].Loc));
+
+ // The INC2 expansion in #include M(INC2) comes before the second
+ // MACRO_IN_INCLUDE definition of the included file.
+ EXPECT_TRUE(SourceMgr.isBeforeInTranslationUnit(Macros[7].Loc, Macros[8].Loc));
+}
+
+#endif
+
+} // anonymous namespace
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