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https://github.com/apple/sourcekit-lsp.git
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20e3fa368b
None of these target-related functions was actually called or implemented properly in any build system.
109 lines
3.3 KiB
Swift
109 lines
3.3 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 LanguageServerProtocol
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import SKSupport
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import Foundation
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import Dispatch
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import enum PackageLoading.Platform
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import class TSCBasic.Process
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import struct TSCBasic.AbsolutePath
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/// A simple BuildSystem suitable as a fallback when accurate settings are unknown.
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public final class FallbackBuildSystem: BuildSystem {
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let buildSetup: BuildSetup
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public init(buildSetup: BuildSetup) {
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self.buildSetup = buildSetup
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}
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/// The path to the SDK.
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public lazy var sdkpath: AbsolutePath? = {
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guard Platform.current == .darwin else { return nil }
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return try? AbsolutePath(validating: Process.checkNonZeroExit(args: "/usr/bin/xcrun", "--show-sdk-path", "--sdk", "macosx").trimmingCharacters(in: .whitespacesAndNewlines))
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}()
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/// Delegate to handle any build system events.
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public weak var delegate: BuildSystemDelegate? = nil
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public var indexStorePath: AbsolutePath? { return nil }
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public var indexDatabasePath: AbsolutePath? { return nil }
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public var indexPrefixMappings: [PathPrefixMapping] { return [] }
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public func settings(for uri: DocumentURI, _ language: Language) -> FileBuildSettings? {
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switch language {
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case .swift:
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return settingsSwift(uri.pseudoPath)
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case .c, .cpp, .objective_c, .objective_cpp:
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return settingsClang(uri.pseudoPath, language)
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default:
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return nil
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}
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}
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public func registerForChangeNotifications(for uri: DocumentURI, language: Language) {
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guard let delegate = self.delegate else { return }
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let settings = self.settings(for: uri, language)
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DispatchQueue.global().async {
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delegate.fileBuildSettingsChanged([uri: FileBuildSettingsChange(settings)])
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}
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}
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/// We don't support change watching.
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public func unregisterForChangeNotifications(for: DocumentURI) {}
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func settingsSwift(_ file: String) -> FileBuildSettings {
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var args: [String] = []
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args.append(contentsOf: self.buildSetup.flags.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.buildSetup.flags.cCompilerFlags)
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case .cpp:
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args.append(contentsOf: self.buildSetup.flags.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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public func filesDidChange(_ events: [FileEvent]) {}
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public func fileHandlingCapability(for uri: DocumentURI) -> FileHandlingCapability {
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return .fallback
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}
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}
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