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-rw-r--r--unittests/libclang/LibclangTest.cpp467
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diff --git a/unittests/libclang/LibclangTest.cpp b/unittests/libclang/LibclangTest.cpp
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+//===- unittests/libclang/LibclangTest.cpp --- libclang tests -------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang-c/Index.h"
+#include "gtest/gtest.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/raw_ostream.h"
+#include <fstream>
+#include <set>
+#define DEBUG_TYPE "libclang-test"
+
+TEST(libclang, clang_parseTranslationUnit2_InvalidArgs) {
+ EXPECT_EQ(CXError_InvalidArguments,
+ clang_parseTranslationUnit2(nullptr, nullptr, nullptr, 0, nullptr,
+ 0, 0, nullptr));
+}
+
+TEST(libclang, clang_createTranslationUnit_InvalidArgs) {
+ EXPECT_EQ(nullptr, clang_createTranslationUnit(nullptr, nullptr));
+}
+
+TEST(libclang, clang_createTranslationUnit2_InvalidArgs) {
+ EXPECT_EQ(CXError_InvalidArguments,
+ clang_createTranslationUnit2(nullptr, nullptr, nullptr));
+
+ CXTranslationUnit TU = reinterpret_cast<CXTranslationUnit>(1);
+ EXPECT_EQ(CXError_InvalidArguments,
+ clang_createTranslationUnit2(nullptr, nullptr, &TU));
+ EXPECT_EQ(nullptr, TU);
+}
+
+namespace {
+struct TestVFO {
+ const char *Contents;
+ CXVirtualFileOverlay VFO;
+
+ TestVFO(const char *Contents) : Contents(Contents) {
+ VFO = clang_VirtualFileOverlay_create(0);
+ }
+
+ void map(const char *VPath, const char *RPath) {
+ CXErrorCode Err = clang_VirtualFileOverlay_addFileMapping(VFO, VPath, RPath);
+ EXPECT_EQ(Err, CXError_Success);
+ }
+
+ void mapError(const char *VPath, const char *RPath, CXErrorCode ExpErr) {
+ CXErrorCode Err = clang_VirtualFileOverlay_addFileMapping(VFO, VPath, RPath);
+ EXPECT_EQ(Err, ExpErr);
+ }
+
+ ~TestVFO() {
+ if (Contents) {
+ char *BufPtr;
+ unsigned BufSize;
+ clang_VirtualFileOverlay_writeToBuffer(VFO, 0, &BufPtr, &BufSize);
+ std::string BufStr(BufPtr, BufSize);
+ EXPECT_STREQ(Contents, BufStr.c_str());
+ free(BufPtr);
+ }
+ clang_VirtualFileOverlay_dispose(VFO);
+ }
+};
+}
+
+TEST(libclang, VirtualFileOverlay_Basic) {
+ const char *contents =
+ "{\n"
+ " 'version': 0,\n"
+ " 'roots': [\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/path/virtual\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"foo.h\",\n"
+ " 'external-contents': \"/real/foo.h\"\n"
+ " }\n"
+ " ]\n"
+ " }\n"
+ " ]\n"
+ "}\n";
+ TestVFO T(contents);
+ T.map("/path/virtual/foo.h", "/real/foo.h");
+}
+
+TEST(libclang, VirtualFileOverlay_Unicode) {
+ const char *contents =
+ "{\n"
+ " 'version': 0,\n"
+ " 'roots': [\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/path/\\u266B\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"\\u2602.h\",\n"
+ " 'external-contents': \"/real/\\u2602.h\"\n"
+ " }\n"
+ " ]\n"
+ " }\n"
+ " ]\n"
+ "}\n";
+ TestVFO T(contents);
+ T.map("/path/♫/☂.h", "/real/☂.h");
+}
+
+TEST(libclang, VirtualFileOverlay_InvalidArgs) {
+ TestVFO T(nullptr);
+ T.mapError("/path/./virtual/../foo.h", "/real/foo.h",
+ CXError_InvalidArguments);
+}
+
+TEST(libclang, VirtualFileOverlay_RemapDirectories) {
+ const char *contents =
+ "{\n"
+ " 'version': 0,\n"
+ " 'roots': [\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/another/dir\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"foo2.h\",\n"
+ " 'external-contents': \"/real/foo2.h\"\n"
+ " }\n"
+ " ]\n"
+ " },\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/path/virtual/dir\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"foo1.h\",\n"
+ " 'external-contents': \"/real/foo1.h\"\n"
+ " },\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"foo3.h\",\n"
+ " 'external-contents': \"/real/foo3.h\"\n"
+ " },\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"in/subdir\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"foo4.h\",\n"
+ " 'external-contents': \"/real/foo4.h\"\n"
+ " }\n"
+ " ]\n"
+ " }\n"
+ " ]\n"
+ " }\n"
+ " ]\n"
+ "}\n";
+ TestVFO T(contents);
+ T.map("/path/virtual/dir/foo1.h", "/real/foo1.h");
+ T.map("/another/dir/foo2.h", "/real/foo2.h");
+ T.map("/path/virtual/dir/foo3.h", "/real/foo3.h");
+ T.map("/path/virtual/dir/in/subdir/foo4.h", "/real/foo4.h");
+}
+
+TEST(libclang, VirtualFileOverlay_CaseInsensitive) {
+ const char *contents =
+ "{\n"
+ " 'version': 0,\n"
+ " 'case-sensitive': 'false',\n"
+ " 'roots': [\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/path/virtual\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"foo.h\",\n"
+ " 'external-contents': \"/real/foo.h\"\n"
+ " }\n"
+ " ]\n"
+ " }\n"
+ " ]\n"
+ "}\n";
+ TestVFO T(contents);
+ T.map("/path/virtual/foo.h", "/real/foo.h");
+ clang_VirtualFileOverlay_setCaseSensitivity(T.VFO, false);
+}
+
+TEST(libclang, VirtualFileOverlay_SharedPrefix) {
+ const char *contents =
+ "{\n"
+ " 'version': 0,\n"
+ " 'roots': [\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/path/foo\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"bar\",\n"
+ " 'external-contents': \"/real/bar\"\n"
+ " },\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"bar.h\",\n"
+ " 'external-contents': \"/real/bar.h\"\n"
+ " }\n"
+ " ]\n"
+ " },\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/path/foobar\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"baz.h\",\n"
+ " 'external-contents': \"/real/baz.h\"\n"
+ " }\n"
+ " ]\n"
+ " },\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/path\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"foobarbaz.h\",\n"
+ " 'external-contents': \"/real/foobarbaz.h\"\n"
+ " }\n"
+ " ]\n"
+ " }\n"
+ " ]\n"
+ "}\n";
+ TestVFO T(contents);
+ T.map("/path/foo/bar.h", "/real/bar.h");
+ T.map("/path/foo/bar", "/real/bar");
+ T.map("/path/foobar/baz.h", "/real/baz.h");
+ T.map("/path/foobarbaz.h", "/real/foobarbaz.h");
+}
+
+TEST(libclang, VirtualFileOverlay_AdjacentDirectory) {
+ const char *contents =
+ "{\n"
+ " 'version': 0,\n"
+ " 'roots': [\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/path/dir1\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"foo.h\",\n"
+ " 'external-contents': \"/real/foo.h\"\n"
+ " },\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"subdir\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"bar.h\",\n"
+ " 'external-contents': \"/real/bar.h\"\n"
+ " }\n"
+ " ]\n"
+ " }\n"
+ " ]\n"
+ " },\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/path/dir2\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"baz.h\",\n"
+ " 'external-contents': \"/real/baz.h\"\n"
+ " }\n"
+ " ]\n"
+ " }\n"
+ " ]\n"
+ "}\n";
+ TestVFO T(contents);
+ T.map("/path/dir1/foo.h", "/real/foo.h");
+ T.map("/path/dir1/subdir/bar.h", "/real/bar.h");
+ T.map("/path/dir2/baz.h", "/real/baz.h");
+}
+
+TEST(libclang, VirtualFileOverlay_TopLevel) {
+ const char *contents =
+ "{\n"
+ " 'version': 0,\n"
+ " 'roots': [\n"
+ " {\n"
+ " 'type': 'directory',\n"
+ " 'name': \"/\",\n"
+ " 'contents': [\n"
+ " {\n"
+ " 'type': 'file',\n"
+ " 'name': \"foo.h\",\n"
+ " 'external-contents': \"/real/foo.h\"\n"
+ " }\n"
+ " ]\n"
+ " }\n"
+ " ]\n"
+ "}\n";
+ TestVFO T(contents);
+ T.map("/foo.h", "/real/foo.h");
+}
+
+TEST(libclang, VirtualFileOverlay_Empty) {
+ const char *contents =
+ "{\n"
+ " 'version': 0,\n"
+ " 'roots': [\n"
+ " ]\n"
+ "}\n";
+ TestVFO T(contents);
+}
+
+TEST(libclang, ModuleMapDescriptor) {
+ const char *Contents =
+ "framework module TestFrame {\n"
+ " umbrella header \"TestFrame.h\"\n"
+ "\n"
+ " export *\n"
+ " module * { export * }\n"
+ "}\n";
+
+ CXModuleMapDescriptor MMD = clang_ModuleMapDescriptor_create(0);
+
+ clang_ModuleMapDescriptor_setFrameworkModuleName(MMD, "TestFrame");
+ clang_ModuleMapDescriptor_setUmbrellaHeader(MMD, "TestFrame.h");
+
+ char *BufPtr;
+ unsigned BufSize;
+ clang_ModuleMapDescriptor_writeToBuffer(MMD, 0, &BufPtr, &BufSize);
+ std::string BufStr(BufPtr, BufSize);
+ EXPECT_STREQ(Contents, BufStr.c_str());
+ free(BufPtr);
+ clang_ModuleMapDescriptor_dispose(MMD);
+}
+
+class LibclangReparseTest : public ::testing::Test {
+ std::set<std::string> Files;
+public:
+ std::string TestDir;
+ CXIndex Index;
+ CXTranslationUnit ClangTU;
+ unsigned TUFlags;
+
+ void SetUp() {
+ llvm::SmallString<256> Dir;
+ ASSERT_FALSE(llvm::sys::fs::createUniqueDirectory("libclang-test", Dir));
+ TestDir = Dir.str();
+ TUFlags = CXTranslationUnit_DetailedPreprocessingRecord |
+ clang_defaultEditingTranslationUnitOptions();
+ Index = clang_createIndex(0, 0);
+ }
+ void TearDown() {
+ clang_disposeTranslationUnit(ClangTU);
+ clang_disposeIndex(Index);
+ for (const std::string &Path : Files)
+ llvm::sys::fs::remove(Path);
+ llvm::sys::fs::remove(TestDir);
+ }
+ void WriteFile(std::string &Filename, const std::string &Contents) {
+ if (!llvm::sys::path::is_absolute(Filename)) {
+ llvm::SmallString<256> Path(TestDir);
+ llvm::sys::path::append(Path, Filename);
+ Filename = Path.str();
+ Files.insert(Filename);
+ }
+ std::ofstream OS(Filename);
+ OS << Contents;
+ }
+ void DisplayDiagnostics() {
+ unsigned NumDiagnostics = clang_getNumDiagnostics(ClangTU);
+ for (unsigned i = 0; i < NumDiagnostics; ++i) {
+ auto Diag = clang_getDiagnostic(ClangTU, i);
+ DEBUG(llvm::dbgs() << clang_getCString(clang_formatDiagnostic(
+ Diag, clang_defaultDiagnosticDisplayOptions())) << "\n");
+ clang_disposeDiagnostic(Diag);
+ }
+ }
+ bool ReparseTU(unsigned num_unsaved_files, CXUnsavedFile* unsaved_files) {
+ if (clang_reparseTranslationUnit(ClangTU, num_unsaved_files, unsaved_files,
+ clang_defaultReparseOptions(ClangTU))) {
+ DEBUG(llvm::dbgs() << "Reparse failed\n");
+ return false;
+ }
+ DisplayDiagnostics();
+ return true;
+ }
+};
+
+
+TEST_F(LibclangReparseTest, Reparse) {
+ const char *HeaderTop = "#ifndef H\n#define H\nstruct Foo { int bar;";
+ const char *HeaderBottom = "\n};\n#endif\n";
+ const char *CppFile = "#include \"HeaderFile.h\"\nint main() {"
+ " Foo foo; foo.bar = 7; foo.baz = 8; }\n";
+ std::string HeaderName = "HeaderFile.h";
+ std::string CppName = "CppFile.cpp";
+ WriteFile(CppName, CppFile);
+ WriteFile(HeaderName, std::string(HeaderTop) + HeaderBottom);
+
+ ClangTU = clang_parseTranslationUnit(Index, CppName.c_str(), nullptr, 0,
+ nullptr, 0, TUFlags);
+ EXPECT_EQ(1U, clang_getNumDiagnostics(ClangTU));
+ DisplayDiagnostics();
+
+ // Immedaitely reparse.
+ ASSERT_TRUE(ReparseTU(0, nullptr /* No unsaved files. */));
+ EXPECT_EQ(1U, clang_getNumDiagnostics(ClangTU));
+
+ std::string NewHeaderContents =
+ std::string(HeaderTop) + "int baz;" + HeaderBottom;
+ WriteFile(HeaderName, NewHeaderContents);
+
+ // Reparse after fix.
+ ASSERT_TRUE(ReparseTU(0, nullptr /* No unsaved files. */));
+ EXPECT_EQ(0U, clang_getNumDiagnostics(ClangTU));
+}
+
+TEST_F(LibclangReparseTest, ReparseWithModule) {
+ const char *HeaderTop = "#ifndef H\n#define H\nstruct Foo { int bar;";
+ const char *HeaderBottom = "\n};\n#endif\n";
+ const char *MFile = "#include \"HeaderFile.h\"\nint main() {"
+ " struct Foo foo; foo.bar = 7; foo.baz = 8; }\n";
+ const char *ModFile = "module A { header \"HeaderFile.h\" }\n";
+ std::string HeaderName = "HeaderFile.h";
+ std::string MName = "MFile.m";
+ std::string ModName = "module.modulemap";
+ WriteFile(MName, MFile);
+ WriteFile(HeaderName, std::string(HeaderTop) + HeaderBottom);
+ WriteFile(ModName, ModFile);
+
+ std::string ModulesCache = std::string("-fmodules-cache-path=") + TestDir;
+ const char *Args[] = { "-fmodules", ModulesCache.c_str(),
+ "-I", TestDir.c_str() };
+ int NumArgs = sizeof(Args) / sizeof(Args[0]);
+ ClangTU = clang_parseTranslationUnit(Index, MName.c_str(), Args, NumArgs,
+ nullptr, 0, TUFlags);
+ EXPECT_EQ(1U, clang_getNumDiagnostics(ClangTU));
+ DisplayDiagnostics();
+
+ // Immedaitely reparse.
+ ASSERT_TRUE(ReparseTU(0, nullptr /* No unsaved files. */));
+ EXPECT_EQ(1U, clang_getNumDiagnostics(ClangTU));
+
+ std::string NewHeaderContents =
+ std::string(HeaderTop) + "int baz;" + HeaderBottom;
+ WriteFile(HeaderName, NewHeaderContents);
+
+ // Reparse after fix.
+ ASSERT_TRUE(ReparseTU(0, nullptr /* No unsaved files. */));
+ EXPECT_EQ(0U, clang_getNumDiagnostics(ClangTU));
+}
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