| // Copyright 2021 The Tulsi Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| import Foundation |
| |
| /// Creates a complete directory tree in a temporary directory with the given structure. |
| func createFakeModuleCache(with contents: DirectoryStructure) -> URL? { |
| guard let temporaryDirectory = createTemporaryDirectory() else { |
| return nil |
| } |
| |
| do { |
| try createDirectoryStructure(temporaryDirectory, withContents: contents) |
| } catch { |
| try? FileManager.default.removeItem(at: temporaryDirectory) |
| return nil |
| } |
| return temporaryDirectory |
| } |
| |
| /// Convenience function that abstracts away the need to provide the exact directory tree structure. |
| /// Instead, this function accepts FakeModule objects labeled as either swift or clang modules and |
| /// computes the directory structure. |
| func createFakeModuleCache( |
| withSwiftModules swiftModules: [FakeModule], |
| andClangModules clangModulesByDirectory: [String: [FakeModule]] |
| ) -> URL? { |
| var directories = [String: DirectoryStructure]() |
| for (directory, clangModules) in clangModulesByDirectory { |
| directories[directory] = DirectoryStructure(files: clangModules.map { $0.implicitFilename }) |
| } |
| let files = swiftModules.map { $0.swiftName } |
| |
| let contents = DirectoryStructure(files: files, directories: directories) |
| return createFakeModuleCache(with: contents) |
| } |