94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
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//===- unittests/libclang/TestUtils.h -------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TEST_TESTUTILS_H
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#define LLVM_CLANG_TEST_TESTUTILS_H
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#include "clang-c/Index.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include <fstream>
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#include <memory>
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#include <string>
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#include <vector>
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#include "gtest/gtest.h"
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class LibclangParseTest : public ::testing::Test {
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std::set<std::string> Files;
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typedef std::unique_ptr<std::string> fixed_addr_string;
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std::map<fixed_addr_string, fixed_addr_string> UnsavedFileContents;
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public:
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std::string TestDir;
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CXIndex Index;
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CXTranslationUnit ClangTU;
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unsigned TUFlags;
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std::vector<CXUnsavedFile> UnsavedFiles;
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void SetUp() override {
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llvm::SmallString<256> Dir;
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ASSERT_FALSE(llvm::sys::fs::createUniqueDirectory("libclang-test", Dir));
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TestDir = std::string(Dir.str());
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TUFlags = CXTranslationUnit_DetailedPreprocessingRecord |
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clang_defaultEditingTranslationUnitOptions();
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Index = clang_createIndex(0, 0);
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ClangTU = nullptr;
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}
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void TearDown() override {
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clang_disposeTranslationUnit(ClangTU);
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clang_disposeIndex(Index);
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for (const std::string &Path : Files)
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llvm::sys::fs::remove(Path);
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llvm::sys::fs::remove(TestDir);
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}
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void WriteFile(std::string &Filename, const std::string &Contents) {
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if (!llvm::sys::path::is_absolute(Filename)) {
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llvm::SmallString<256> Path(TestDir);
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llvm::sys::path::append(Path, Filename);
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Filename = std::string(Path.str());
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Files.insert(Filename);
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}
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llvm::sys::fs::create_directories(llvm::sys::path::parent_path(Filename));
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std::ofstream OS(Filename);
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OS << Contents;
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assert(OS.good());
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}
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void MapUnsavedFile(std::string Filename, const std::string &Contents) {
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if (!llvm::sys::path::is_absolute(Filename)) {
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llvm::SmallString<256> Path(TestDir);
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llvm::sys::path::append(Path, Filename);
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Filename = std::string(Path.str());
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}
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auto it = UnsavedFileContents.insert(std::make_pair(
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fixed_addr_string(new std::string(Filename)),
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fixed_addr_string(new std::string(Contents))));
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UnsavedFiles.push_back({
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it.first->first->c_str(), // filename
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it.first->second->c_str(), // contents
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it.first->second->size() // length
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});
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}
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template<typename F>
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void Traverse(const F &TraversalFunctor) {
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CXCursor TuCursor = clang_getTranslationUnitCursor(ClangTU);
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std::reference_wrapper<const F> FunctorRef = std::cref(TraversalFunctor);
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clang_visitChildren(TuCursor,
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&TraverseStateless<std::reference_wrapper<const F>>,
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&FunctorRef);
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}
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private:
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template<typename TState>
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static CXChildVisitResult TraverseStateless(CXCursor cx, CXCursor parent,
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CXClientData data) {
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TState *State = static_cast<TState*>(data);
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return State->get()(cx, parent);
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}
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};
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#endif // LLVM_CLANG_TEST_TESTUTILS_H
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