================ @@ -0,0 +1,51 @@ +//===- DependencyScanningFilesystemTest.cpp -------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "clang/Tooling/DependencyScanning/DependencyScanningFilesystem.h" +#include "llvm/ADT/Twine.h" +#include "llvm/Support/VirtualFileSystem.h" +#include "gtest/gtest.h" + +using namespace clang::tooling::dependencies; + +namespace { + struct InstrumentingFilesystem + : llvm::RTTIExtends<InstrumentingFilesystem, llvm::vfs::ProxyFileSystem> { + unsigned NumStatCalls = 0; + + using llvm::RTTIExtends<InstrumentingFilesystem, + llvm::vfs::ProxyFileSystem>::RTTIExtends; + + llvm::ErrorOr<llvm::vfs::Status> status(const llvm::Twine &Path) override { + ++NumStatCalls; + return ProxyFileSystem::status(Path); + } + }; + } // namespace + + +TEST(DependencyScanningFilesystem, CacheStatOnExists) { + auto InMemoryFS = llvm::makeIntrusiveRefCnt<llvm::vfs::InMemoryFileSystem>(); + InMemoryFS->setCurrentWorkingDirectory("/"); + InMemoryFS->addFile("/foo", 0, llvm::MemoryBuffer::getMemBuffer("")); + InMemoryFS->addFile("/bar", 0, llvm::MemoryBuffer::getMemBuffer("")); + + auto InstrumentingFS = + llvm::makeIntrusiveRefCnt<InstrumentingFilesystem>(InMemoryFS); + DependencyScanningFilesystemSharedCache SharedCache; + DependencyScanningWorkerFilesystem DepFS(SharedCache, InstrumentingFS); + + DepFS.status("/foo"); + DepFS.status("/foo"); + DepFS.status("/bar"); + EXPECT_EQ(InstrumentingFS->NumStatCalls, 2u); + + DepFS.exists("/foo"); + DepFS.exists("/bar"); + EXPECT_EQ(InstrumentingFS->NumStatCalls, 2u); ---------------- artemcm wrote:
Gah, was silly to use a ProxyFilesystem as the underlying FS. Fixed, thank you very much for catching. https://github.com/llvm/llvm-project/pull/88152 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
