67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
//===-- MockSymlinkFileSystem.h
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//--------------------------------------------------===//
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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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#include "lldb/Utility/FileSpec.h"
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#include "llvm/Support/VirtualFileSystem.h"
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namespace lldb_private {
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// A mock file system that realpath's a given symlink to a given realpath.
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class MockSymlinkFileSystem : public llvm::vfs::FileSystem {
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public:
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// Treat all files as non-symlinks.
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MockSymlinkFileSystem() = default;
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/// Treat \a symlink as a symlink to \a realpath. Treat all other files as
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/// non-symlinks.
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MockSymlinkFileSystem(FileSpec &&symlink, FileSpec &&realpath,
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FileSpec::Style style = FileSpec::Style::native)
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: m_symlink(std::move(symlink)), m_realpath(std::move(realpath)),
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m_style(style) {}
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/// If \a Path matches the symlink given in the ctor, put the realpath given
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/// in the ctor into \a Output.
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std::error_code getRealPath(const llvm::Twine &Path,
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llvm::SmallVectorImpl<char> &Output) override {
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if (FileSpec(Path.str(), m_style) == m_symlink) {
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std::string path = m_realpath.GetPath();
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Output.assign(path.begin(), path.end());
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} else {
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Path.toVector(Output);
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}
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return {};
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}
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// Implement the rest of the interface
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llvm::ErrorOr<llvm::vfs::Status> status(const llvm::Twine &Path) override {
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return llvm::errc::operation_not_permitted;
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}
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llvm::ErrorOr<std::unique_ptr<llvm::vfs::File>>
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openFileForRead(const llvm::Twine &Path) override {
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return llvm::errc::operation_not_permitted;
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}
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llvm::vfs::directory_iterator dir_begin(const llvm::Twine &Dir,
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std::error_code &EC) override {
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return llvm::vfs::directory_iterator();
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}
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std::error_code setCurrentWorkingDirectory(const llvm::Twine &Path) override {
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return llvm::errc::operation_not_permitted;
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}
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llvm::ErrorOr<std::string> getCurrentWorkingDirectory() const override {
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return llvm::errc::operation_not_permitted;
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}
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private:
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FileSpec m_symlink;
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FileSpec m_realpath;
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FileSpec::Style m_style;
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};
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} // namespace lldb_private
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