forked from OSchip/llvm-project
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
//===-- TestFS.h ------------------------------------------------*- C++ -*-===//
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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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//
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// Allows setting up fake filesystem environments for tests.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOOLS_EXTRA_UNITTESTS_CLANGD_TESTFS_H
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#define LLVM_CLANG_TOOLS_EXTRA_UNITTESTS_CLANGD_TESTFS_H
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#include "ClangdServer.h"
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#include "llvm/ADT/IntrusiveRefCntPtr.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/VirtualFileSystem.h"
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namespace clang {
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namespace clangd {
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// Builds a VFS that provides access to the provided files, plus temporary
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// directories.
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llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>
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buildTestFS(llvm::StringMap<std::string> const &Files,
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llvm::StringMap<time_t> const &Timestamps = {});
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// A VFS provider that returns TestFSes containing a provided set of files.
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class MockFSProvider : public FileSystemProvider {
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public:
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IntrusiveRefCntPtr<llvm::vfs::FileSystem> getFileSystem() const override {
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return buildTestFS(Files);
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}
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// If relative paths are used, they are resolved with testPath().
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llvm::StringMap<std::string> Files;
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};
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// A Compilation database that returns a fixed set of compile flags.
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class MockCompilationDatabase : public GlobalCompilationDatabase {
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public:
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/// If \p Directory is not empty, use that as the Directory field of the
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/// CompileCommand, and as project SourceRoot.
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///
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/// If \p RelPathPrefix is not empty, use that as a prefix in front of the
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/// source file name, instead of using an absolute path.
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MockCompilationDatabase(StringRef Directory = StringRef(),
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StringRef RelPathPrefix = StringRef());
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llvm::Optional<tooling::CompileCommand>
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getCompileCommand(PathRef File, ProjectInfo * = nullptr) const override;
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std::vector<std::string> ExtraClangFlags;
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private:
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StringRef Directory;
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StringRef RelPathPrefix;
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};
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// Returns an absolute (fake) test directory for this OS.
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const char *testRoot();
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// Returns a suitable absolute path for this OS.
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std::string testPath(PathRef File);
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// unittest: is a scheme that refers to files relative to testRoot()
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// This anchor is used to force the linker to link in the generated object file
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// and thus register unittest: URI scheme plugin.
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extern volatile int UnittestSchemeAnchorSource;
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} // namespace clangd
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} // namespace clang
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#endif
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