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Jon Ross-Perkins
e382e6fd97
From the driver's perspective, `FindPreludeFiles` is closely tied to `compile`. This makes it difficult to refactor commands without affecting the test dependencies on `FindPreludeFiles`. `InstallPaths` seems like a decent home since it is responsible for the install structure. I'm switching to an `Error` return to allow callers to choose how to handle it (e.g., in file tests, we typically don't want the direct error stream).
30 lines
1.1 KiB
C++
30 lines
1.1 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "toolchain/install/install_paths_test_helpers.h"
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#include "testing/base/global_exe_path.h"
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namespace Carbon::Testing {
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// Prepares the VFS with prelude files from the real filesystem. Primarily for
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// tests.
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auto AddPreludeFilesToVfs(InstallPaths install_paths,
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llvm::vfs::InMemoryFileSystem* vfs) -> void {
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// Load the prelude into the test VFS.
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auto real_fs = llvm::vfs::getRealFileSystem();
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auto prelude = install_paths.FindPreludeFiles();
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CARBON_CHECK(prelude.ok()) << prelude.error();
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for (const auto& path : *prelude) {
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llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> file =
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real_fs->getBufferForFile(path);
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CARBON_CHECK(file) << "Error getting file: " << file.getError().message();
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bool added = vfs->addFile(path, /*ModificationTime=*/0, std::move(*file));
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CARBON_CHECK(added) << "Duplicate file: " << path;
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}
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}
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} // namespace Carbon::Testing
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