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022a6de6c3
The implementation of which file’s dependencies have been updated is common across all build systems and thus build systems shouldn’t need to implement this logic. This also allows us to remove `BuildSystemDelegate`.
92 lines
2.8 KiB
Swift
92 lines
2.8 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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import BuildServerProtocol
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import Dispatch
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import Foundation
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import LanguageServerProtocol
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import SKOptions
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import SKSupport
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import enum PackageLoading.Platform
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import struct TSCBasic.AbsolutePath
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import class TSCBasic.Process
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/// A simple BuildSystem suitable as a fallback when accurate settings are unknown.
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package actor FallbackBuildSystem {
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private let options: SourceKitLSPOptions.FallbackBuildSystemOptions
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package init(options: SourceKitLSPOptions.FallbackBuildSystemOptions) {
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self.options = options
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}
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/// The path to the SDK.
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package lazy var sdkpath: AbsolutePath? = {
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guard Platform.current == .darwin else { return nil }
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return try? AbsolutePath(
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validating: Process.checkNonZeroExit(args: "/usr/bin/xcrun", "--show-sdk-path", "--sdk", "macosx")
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.trimmingCharacters(in: .whitespacesAndNewlines)
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)
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}()
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package var indexStorePath: AbsolutePath? { return nil }
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package var indexDatabasePath: AbsolutePath? { return nil }
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package func buildSettings(for uri: DocumentURI, language: Language) -> FileBuildSettings? {
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var fileBuildSettings: FileBuildSettings?
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switch language {
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case .swift:
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fileBuildSettings = settingsSwift(uri.pseudoPath)
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case .c, .cpp, .objective_c, .objective_cpp:
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fileBuildSettings = settingsClang(uri.pseudoPath, language)
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default:
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fileBuildSettings = nil
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}
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fileBuildSettings?.isFallback = true
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return fileBuildSettings
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}
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func settingsSwift(_ file: String) -> FileBuildSettings {
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var args: [String] = []
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args.append(contentsOf: self.options.swiftCompilerFlags ?? [])
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if let sdkpath = sdkpath, !args.contains("-sdk") {
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args += [
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"-sdk",
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sdkpath.pathString,
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]
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}
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args.append(file)
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return FileBuildSettings(compilerArguments: args)
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}
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func settingsClang(_ file: String, _ language: Language) -> FileBuildSettings {
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var args: [String] = []
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switch language {
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case .c:
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args.append(contentsOf: self.options.cCompilerFlags ?? [])
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case .cpp:
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args.append(contentsOf: self.options.cxxCompilerFlags ?? [])
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default:
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break
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}
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if let sdkpath = sdkpath, !args.contains("-isysroot") {
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args += [
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"-isysroot",
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sdkpath.pathString,
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]
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}
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args.append(file)
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return FileBuildSettings(compilerArguments: args)
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}
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}
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