[SE-0046] Implemented consistent function labels

Sources/Build/Buildable.swift

@@ -18,7 +18,7 @@ protocol Buildable {
 
 extension CModule {
     ///Returns the build directory path of a CModule
-    func buildDirectory(prefix: String) -> String {
+    func buildDirectory(_ prefix: String) -> String {
         return Path.join(prefix, "\(c99name).build")
     }
 }
@@ -28,7 +28,7 @@ extension Module: Buildable {
         return self is TestModule
     }
 
-    func XccFlags(prefix: String) -> [String] {
+    func XccFlags(_ prefix: String) -> [String] {
         return recursiveDependencies.flatMap { module -> [String] in
             if let module = module as? ClangModule {
                 ///For ClangModule we check if there is a user provided module map

Sources/Build/Command.compile(ClangModule).swift

@@ -22,7 +22,7 @@ private extension ClangModule {
         return args
     }
 
-    func includeFlagsWithExternalModules(externalModules: Set<Module>) -> [String] {
+    func includeFlagsWithExternalModules(_ externalModules: Set<Module>) -> [String] {
         var args: [String] = []
         for case let dep as ClangModule in dependencies {
             let includeFlag: String
@@ -45,7 +45,7 @@ private extension ClangModule {
         return args
     }
 
-    func optimizationFlags(conf: Configuration) -> [String] {
+    func optimizationFlags(_ conf: Configuration) -> [String] {
         switch conf {
         case .Debug:
             return ["-g", "-O0"]
@@ -56,7 +56,7 @@ private extension ClangModule {
 }
 
 private extension Sources {
-    func compilePathsForBuildDir(wd: String) -> [(filename: String, source: String, object: String, deps: String)] {
+    func compilePathsForBuildDir(_ wd: String) -> [(filename: String, source: String, object: String, deps: String)] {
         return relativePaths.map { source in
             let path = Path.join(root, source)
             let object = Path.join(wd, "\(source).o")

Sources/Build/Command.compile(SwiftModule).swift

@@ -16,7 +16,7 @@ extension Command {
 
         let otherArgs = otherArgs + module.XccFlags(prefix)
 
-        func cmd(tool: ToolProtocol) -> Command {
+        func cmd(_ tool: ToolProtocol) -> Command {
             return Command(node: module.targetName, tool: tool)
         }
 

Sources/Build/Command.link().swift

@@ -17,7 +17,7 @@ import Utility
 
 
 extension Command {
-    static func link(product: Product, configuration conf: Configuration, prefix: String, otherArgs: [String], SWIFT_EXEC: String) throws -> Command {
+    static func link(_ product: Product, configuration conf: Configuration, prefix: String, otherArgs: [String], SWIFT_EXEC: String) throws -> Command {
 
         let objects: [String]
         switch conf {

Sources/Build/Command.swift

@@ -12,7 +12,7 @@ struct Command {
     let node: String
     let tool: ToolProtocol
 
-    static func createDirectory(path: String) -> Command {
+    static func createDirectory(_ path: String) -> Command {
         return Command(node: path, tool: MkdirTool(path: path))
     }
 }

Sources/Build/YAML.swift

@@ -28,7 +28,7 @@ extension Bool: YAMLRepresentable {
 
 extension Array where Element: YAMLRepresentable {
     var YAML: String {
-        func quote(input: String) -> String {
+        func quote(_ input: String) -> String {
             for c in input.characters {
                 if c == "@" || c == " " || c == "-" || c == "&" {
                     return "\"\(input)\""

Sources/Build/describe().swift

@@ -18,7 +18,7 @@ import Utility
 /**
   - Returns: path to generated YAML for consumption by the llbuild based swift-build-tool
 */
-public func describe(prefix: String, _ conf: Configuration, _ modules: [Module], _ externalModules: Set<Module>, _ products: [Product], Xcc: [String], Xld: [String], Xswiftc: [String], toolchain: Toolchain) throws -> String {
+public func describe(_ prefix: String, _ conf: Configuration, _ modules: [Module], _ externalModules: Set<Module>, _ products: [Product], Xcc: [String], Xld: [String], Xswiftc: [String], toolchain: Toolchain) throws -> String {
 
     guard modules.count > 0 else {
         throw Error.NoModules
@@ -78,7 +78,7 @@ public func describe(prefix: String, _ conf: Configuration, _ modules: [Module],
     }
 }
 
-private func write(path path: String, write: ((String) -> Void) -> Void) throws -> String {
+private func write(path: String, write: ((String) -> Void) -> Void) throws -> String {
     var storedError: ErrorProtocol?
 
     try fopen(path, mode: .Write) { fp in
@@ -105,7 +105,7 @@ private struct Targets {
     var test = Target(node: "test", cmds: [])
     var main = Target(node: "default", cmds: [])
 
-    mutating func append(command: Command, for buildable: Buildable) {
+    mutating func append(_ command: Command, for buildable: Buildable) {
         if buildable.isTest {
             test.cmds.append(command)
         } else {

Sources/Build/misc.swift

@@ -99,7 +99,7 @@ extension ClangModule {
     }
 
     ///warn user if in case module name and c99name are different and there a `name.h` umbrella header
-    private func diagnoseInvalidUmbrellaHeader(path: String) {
+    private func diagnoseInvalidUmbrellaHeader(_ path: String) {
         let umbrellaHeader = Path.join(path, "\(c99name).h")
         let invalidUmbrellaHeader = Path.join(path, "\(name).h")
         if c99name != name && invalidUmbrellaHeader.isFile {

Sources/Get/Fetchable.swift

@@ -26,5 +26,5 @@ protocol Fetchable {
     //FIXME protocols cannot impose new property constraints,
     // so Package has a version { get } already, we cannot add
     // a set, so instead we have to have this protocol func
-    func setVersion(newValue: Version) throws
+    func setVersion(_ newValue: Version) throws
 }

Sources/Get/Fetcher.swift

@@ -17,11 +17,11 @@ import struct PackageDescription.Version
 protocol Fetcher {
     associatedtype T: Fetchable
 
-    func find(url url: String) throws -> Fetchable?
-    func fetch(url url: String) throws -> Fetchable
-    func finalize(fetchable: Fetchable) throws -> T
+    func find(url: String) throws -> Fetchable?
+    func fetch(url: String) throws -> Fetchable
+    func finalize(_ fetchable: Fetchable) throws -> T
 
-    func recursivelyFetch(urls: [(String, Range<Version>)]) throws -> [T]
+    func recursivelyFetch(_ urls: [(String, Range<Version>)]) throws -> [T]
 }
 
 extension Fetcher {
@@ -30,15 +30,15 @@ extension Fetcher {
 
      This is our standard implementation that we override when testing.
      */
-    func recursivelyFetch(urls: [(String, Range<Version>)]) throws -> [T] {
+    func recursivelyFetch(_ urls: [(String, Range<Version>)]) throws -> [T] {
 
         var graph = [String: (Fetchable, Range<Version>)]()
 
-        func recurse(urls: [(String, Range<Version>)]) throws -> [String] {
+        func recurse(_ urls: [(String, Range<Version>)]) throws -> [String] {
 
             return try urls.flatMap { url, specifiedVersionRange -> [String] in
 
-                func adjust(pkg: Fetchable, _ versionRange: Range<Version>) throws {
+                func adjust(_ pkg: Fetchable, _ versionRange: Range<Version>) throws {
                     guard let v = pkg.constrain(to: versionRange) else {
                         throw Error.InvalidDependencyGraphMissingTag(package: url, requestedTag: "\(versionRange)", existingTags: "\(pkg.availableVersions)")
                     }

Sources/Get/Git.swift

@@ -15,7 +15,7 @@ import enum POSIX.Error
 import Utility
 
 extension Git {
-    class func clone(url: String, to dstdir: String) throws -> Repo {
+    class func clone(_ url: String, to dstdir: String) throws -> Repo {
         // canonicalize URL
         var url = url
         if URL.scheme(url) == nil {

Sources/Get/Package.swift

@@ -15,7 +15,7 @@ import Utility
 extension Package {
     // FIXME we *always* have a manifest, don't reparse it
 
-    static func make(repo repo: Git.Repo, manifestParser: (path: String, url: String) throws -> Manifest) throws -> Package? {
+    static func make(repo: Git.Repo, manifestParser: (path: String, url: String) throws -> Manifest) throws -> Package? {
         guard let origin = repo.origin else { throw Error.NoOrigin(repo.path) }
         let manifest = try manifestParser(path: repo.path, url: origin)
         let pkg = Package(manifest: manifest, url: origin)
@@ -45,7 +45,7 @@ extension Package: Fetchable {
         return [version]
     }
 
-    func setVersion(newValue: Version) throws {
+    func setVersion(_ newValue: Version) throws {
         throw Get.Error.InvalidDependencyGraph(url)
     }
 }

Sources/Get/PackagesDirectory.swift

@@ -30,7 +30,7 @@ class PackagesDirectory {
 extension PackagesDirectory: Fetcher {
     typealias T = Package
 
-    func find(url url: String) throws -> Fetchable? {
+    func find(url: String) throws -> Fetchable? {
         for prefix in walk(self.prefix, recursively: false) {
             guard let repo = Git.Repo(path: prefix) else { continue }  //TODO warn user
             guard repo.origin == url else { continue }
@@ -39,7 +39,7 @@ extension PackagesDirectory: Fetcher {
         return nil
     }
 
-    func fetch(url url: String) throws -> Fetchable {
+    func fetch(url: String) throws -> Fetchable {
         let dstdir = Path.join(prefix, Package.nameForURL(url))
         if let repo = Git.Repo(path: dstdir) where repo.origin == url {
             //TODO need to canonicalize the URL need URL struct
@@ -52,7 +52,7 @@ extension PackagesDirectory: Fetcher {
         return try RawClone(path: dstdir, manifestParser: manifestParser)
     }
 
-    func finalize(fetchable: Fetchable) throws -> Package {
+    func finalize(_ fetchable: Fetchable) throws -> Package {
         switch fetchable {
         case let clone as RawClone:
             let prefix = Path.join(self.prefix, clone.finalName)

Sources/Get/RawClone.swift

@@ -60,7 +60,7 @@ class RawClone: Fetchable {
     }
 
     /// contract, you cannot call this before you have attempted to `constrain` this clone
-    func setVersion(ver: Version) throws {
+    func setVersion(_ ver: Version) throws {
         let packageVersionsArePrefixed = repo.versionsArePrefixed
         let v = (packageVersionsArePrefixed ? "v" : "") + ver.description
         try Git.runPopen([Git.tool, "-C", path, "reset", "--hard", v])

Sources/Get/Version.swift

@@ -24,7 +24,7 @@ extension Version {
         return self.min..<self.max
     }
 
-    static func vprefix(string: String.CharacterView) -> Version? {
+    static func vprefix(_ string: String.CharacterView) -> Version? {
         if string.first == "v" {
             return Version(string.dropFirst())
         } else {

Sources/Get/get().swift

@@ -17,7 +17,7 @@ import Utility
  - Throws: Error.InvalidDependencyGraph
  - Returns: The modules that this manifest requires building
 */
-public func get(manifest: Manifest, manifestParser: (path: String, url: String) throws -> Manifest) throws -> (rootPackage: Package, externalPackages:[Package]) {
+public func get(_ manifest: Manifest, manifestParser: (path: String, url: String) throws -> Manifest) throws -> (rootPackage: Package, externalPackages:[Package]) {
     let dir = Path.join(manifest.path.parentDirectory, "Packages")
     let box = PackagesDirectory(prefix: dir, manifestParser: manifestParser)
 

Sources/ManifestParser/TOML.swift

@@ -467,7 +467,7 @@ private struct Parser {
     }
 
     /// Find the new table to insert into given the top-level table and a list of specifiers.
-    private mutating func findInsertPoint(topLevelTable: TOMLItemTable, _ specifiers: [String], isAppend: Bool, startToken: Lexer.Token) -> TOMLItemTable {
+    private mutating func findInsertPoint(_ topLevelTable: TOMLItemTable, _ specifiers: [String], isAppend: Bool, startToken: Lexer.Token) -> TOMLItemTable {
         // FIXME: Handle TOML requirements (sole definition).
         var into = topLevelTable
         for (i,specifier) in specifiers.enumerated() {
@@ -517,7 +517,7 @@ private struct Parser {
     /// item), including the terminating brackets.
     ///
     /// - Parameter isAppend: Whether the specifier should end with double brackets.
-    private mutating func parseTableSpecifier(isAppend: Bool) -> [String]? {
+    private mutating func parseTableSpecifier(_ isAppend: Bool) -> [String]? {
         let startToken = lookahead
 
         // Parse all of the specifiers.
@@ -573,7 +573,7 @@ private struct Parser {
     // MARK: Parser Implementation
 
     /// Report an error at the given token.
-    private mutating func error(message: String, at: Lexer.Token) {
+    private mutating func error(_ message: String, at: Lexer.Token) {
         errors.append(message)
     }
 
@@ -588,7 +588,7 @@ private struct Parser {
     }
 
     /// Consume a token if it matches a particular block.
-    private mutating func consumeIf(match: (Lexer.Token) -> Bool) -> Bool {
+    private mutating func consumeIf(_ match: (Lexer.Token) -> Bool) -> Bool {
         if match(lookahead) {
             eat()
             return true
@@ -610,7 +610,7 @@ private struct Parser {
     }
 
     /// Parse the contents of a table, stopping at the next table marker.
-    private mutating func parseTableContents(table: TOMLItemTable) {
+    private mutating func parseTableContents(_ table: TOMLItemTable) {
         // Parse assignments until we reach the EOF or a new table record.
         while lookahead != .EOF && lookahead != .LSquare {
             // If we have a bare newline, ignore it.
@@ -624,7 +624,7 @@ private struct Parser {
     }
 
     /// Parse an individual table assignment.
-    private mutating func parseAssignment(table: TOMLItemTable) {
+    private mutating func parseAssignment(_ table: TOMLItemTable) {
         // Parse the LHS.
         let key: String
         switch eat() {
@@ -727,7 +727,7 @@ private struct Parser {
         return .Array(contents: array)
     }
 
-    private func parseNumberItem(spelling: String) -> TOMLItem? {
+    private func parseNumberItem(_ spelling: String) -> TOMLItem? {
 
         let normalized = String(spelling.characters.filter { $0 != "_" })
 
@@ -749,7 +749,7 @@ public struct TOMLParsingError : ErrorProtocol {
 
 /// Public interface to parsing TOML.
 public extension TOMLItem {
-    static func parse(data: Swift.String) throws -> TOMLItem {
+    static func parse(_ data: Swift.String) throws -> TOMLItem {
         // Parse the string.
         var parser = Parser(data)
         let result = parser.parse()
@@ -768,7 +768,7 @@ public extension TOMLItem {
 /// Internal function for testing the lexer.
 ///
 /// returns: A list of the lexed tokens' string representations.
-internal func lexTOML(data: String) -> [String] {
+internal func lexTOML(_ data: String) -> [String] {
     let lexer = Lexer(data)
     return lexer.map { String($0) }
 }

Sources/ManifestParser/fromTOML().swift

@@ -12,7 +12,7 @@ import Utility
 import PackageDescription
 
 extension PackageDescription.Package {
-    public static func fromTOML(item: TOMLItem, baseURL: String? = nil) -> PackageDescription.Package {
+    public static func fromTOML(_ item: TOMLItem, baseURL: String? = nil) -> PackageDescription.Package {
         // This is a private API, currently, so we do not currently try and
         // validate the input.
         guard case .Table(let topLevelTable) = item else { fatalError("unexpected item") }
@@ -61,7 +61,7 @@ extension PackageDescription.Package {
 }
 
 extension PackageDescription.Package.Dependency {
-    public static func fromTOML(item: TOMLItem, baseURL: String?) -> PackageDescription.Package.Dependency {
+    public static func fromTOML(_ item: TOMLItem, baseURL: String?) -> PackageDescription.Package.Dependency {
         guard case .Array(let array) = item where array.items.count == 3 else {
             fatalError("Unexpected TOMLItem")
         }
@@ -86,7 +86,7 @@ extension PackageDescription.Package.Dependency {
 }
 
 extension PackageDescription.Target {
-    private static func fromTOML(item: TOMLItem) -> PackageDescription.Target {
+    private static func fromTOML(_ item: TOMLItem) -> PackageDescription.Target {
         // This is a private API, currently, so we do not currently try and
         // validate the input.
         guard case .Table(let table) = item else { fatalError("unexpected item") }
@@ -106,7 +106,7 @@ extension PackageDescription.Target {
 }
 
 extension PackageDescription.Target.Dependency {
-    private static func fromTOML(item: TOMLItem) -> PackageDescription.Target.Dependency {
+    private static func fromTOML(_ item: TOMLItem) -> PackageDescription.Target.Dependency {
         guard case .String(let name) = item else { fatalError("unexpected item") }
         return .Target(name: name)
     }
@@ -142,7 +142,7 @@ extension PackageDescription.Product {
         self.init(name: name, type: type, modules: modules)
     }
 
-    public static func fromTOML(item: TOMLItem) -> [PackageDescription.Product] {
+    public static func fromTOML(_ item: TOMLItem) -> [PackageDescription.Product] {
         guard case .Table(let root) = item else { fatalError("unexpected item") }
         guard let productsItem = root.items["products"] else { return [] }
         guard case .Array(let array) = productsItem else { fatalError("products wrong type") }

Sources/Multitool/Error.swift

@@ -55,7 +55,7 @@ extension Error: CustomStringConvertible {
     }
 }
 
-@noreturn public func handleError(msg: Any, usage: ((String) -> Void) -> Void) {
+@noreturn public func handleError(_ msg: Any, usage: ((String) -> Void) -> Void) {
     switch msg {
     case CommandLineError.InvalidUsage(let hint, let mode):
         print(error: "invalid usage: \(hint)")
@@ -77,14 +77,14 @@ extension Error: CustomStringConvertible {
     exit(1)
 }
 
-private func red(input: Any) -> String {
+private func red(_ input: Any) -> String {
     let input = "\(input)"
     let ESC = "\u{001B}"
     let CSI = "\(ESC)["
     return CSI + "31m" + input + CSI + "0m"
 }
 
-private func print(error error: Any) {
+private func print(error: Any) {
     if !isatty(fileno(libc.stderr)) {
         let cmd = Process.arguments.first?.basename ?? "SwiftPM"
         print("\(cmd): error:", error, to: &stderr)