func registerCapabilities()

in Sources/SourceKitLSP/SourceKitServer.swift [562:595]
32 lines of code
6 McCabe index (conditional complexity)

  func registerCapabilities(
    for server: ServerCapabilities,
    languages: [Language],
    registry: CapabilityRegistry
  ) {
    if let completionOptions = server.completionProvider {
      registry.registerCompletionIfNeeded(options: completionOptions, for: languages) {
        self.dynamicallyRegisterCapability($0, registry)
      }
    }
    if server.foldingRangeProvider?.isSupported == true {
      registry.registerFoldingRangeIfNeeded(options: FoldingRangeOptions(), for: languages) {
        self.dynamicallyRegisterCapability($0, registry)
      }
    }
    if let semanticTokensOptions = server.semanticTokensProvider {
      registry.registerSemanticTokensIfNeeded(options: semanticTokensOptions, for: languages) {
        self.dynamicallyRegisterCapability($0, registry)
      }
    }
    if let commandOptions = server.executeCommandProvider {
      registry.registerExecuteCommandIfNeeded(commands: commandOptions.commands) {
        self.dynamicallyRegisterCapability($0, registry)
      }
    }

    /// This must be a superset of the files that return true for SwiftPM's `Workspace.fileAffectsSwiftOrClangBuildSettings`.
    let watchers = FileRuleDescription.builtinRules.flatMap({ $0.fileTypes }).map { fileExtension in
      return FileSystemWatcher(globPattern: "**/*.\(fileExtension)", kind: [.create, .delete])
    }
    registry.registerDidChangeWatchedFiles(watchers: watchers) {
      self.dynamicallyRegisterCapability($0, registry)
    }
  }