Implement the plugin 🎉

SwiftLintAutoCorrect.xcodeproj/project.pbxproj

@@ -7,17 +7,25 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		0498717F1CB27F8900C5F7B5 /* SwiftLintAutoCorrectTRVSXcode.m in Sources */ = {isa = PBXBuildFile; fileRef = 0498717E1CB27F8900C5F7B5 /* SwiftLintAutoCorrectTRVSXcode.m */; };
+		049871811CB28EBF00C5F7B5 /* Formatter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 049871801CB28EBF00C5F7B5 /* Formatter.swift */; };
 		04E4BF341CB25D3200BC7305 /* SwiftLintAutoCorrect.xcscheme in Resources */ = {isa = PBXBuildFile; fileRef = 04E4BF331CB25D3200BC7305 /* SwiftLintAutoCorrect.xcscheme */; };
 		04E4BF361CB25D3200BC7305 /* SwiftLintAutoCorrect.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04E4BF351CB25D3200BC7305 /* SwiftLintAutoCorrect.swift */; };
 		04E4BF381CB25D3200BC7305 /* NSObject_Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04E4BF371CB25D3200BC7305 /* NSObject_Extension.swift */; };
+		04E4BF411CB273A700BC7305 /* SaveHook.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04E4BF401CB273A700BC7305 /* SaveHook.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		0498717C1CB27F8800C5F7B5 /* SwiftLintAutoCorrect-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "SwiftLintAutoCorrect-Bridging-Header.h"; sourceTree = "<group>"; };
+		0498717D1CB27F8900C5F7B5 /* SwiftLintAutoCorrectTRVSXcode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SwiftLintAutoCorrectTRVSXcode.h; sourceTree = "<group>"; };
+		0498717E1CB27F8900C5F7B5 /* SwiftLintAutoCorrectTRVSXcode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SwiftLintAutoCorrectTRVSXcode.m; sourceTree = "<group>"; };
+		049871801CB28EBF00C5F7B5 /* Formatter.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Formatter.swift; sourceTree = "<group>"; };
 		04E4BF2F1CB25D3100BC7305 /* SwiftLintAutoCorrect.xcplugin */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = SwiftLintAutoCorrect.xcplugin; sourceTree = BUILT_PRODUCTS_DIR; };
 		04E4BF331CB25D3200BC7305 /* SwiftLintAutoCorrect.xcscheme */ = {isa = PBXFileReference; lastKnownFileType = text.xml; name = SwiftLintAutoCorrect.xcscheme; path = SwiftLintAutoCorrect.xcodeproj/xcshareddata/xcschemes/SwiftLintAutoCorrect.xcscheme; sourceTree = SOURCE_ROOT; };
 		04E4BF351CB25D3200BC7305 /* SwiftLintAutoCorrect.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SwiftLintAutoCorrect.swift; sourceTree = "<group>"; };
 		04E4BF371CB25D3200BC7305 /* NSObject_Extension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NSObject_Extension.swift; sourceTree = "<group>"; };
 		04E4BF391CB25D3200BC7305 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		04E4BF401CB273A700BC7305 /* SaveHook.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SaveHook.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXGroup section */
@@ -40,10 +48,15 @@
 		04E4BF311CB25D3200BC7305 /* SwiftLintAutoCorrect */ = {
 			isa = PBXGroup;
 			children = (
+				0498717D1CB27F8900C5F7B5 /* SwiftLintAutoCorrectTRVSXcode.h */,
+				0498717E1CB27F8900C5F7B5 /* SwiftLintAutoCorrectTRVSXcode.m */,
 				04E4BF351CB25D3200BC7305 /* SwiftLintAutoCorrect.swift */,
 				04E4BF371CB25D3200BC7305 /* NSObject_Extension.swift */,
+				04E4BF401CB273A700BC7305 /* SaveHook.swift */,
+				049871801CB28EBF00C5F7B5 /* Formatter.swift */,
 				04E4BF391CB25D3200BC7305 /* Info.plist */,
 				04E4BF321CB25D3200BC7305 /* Supporting Files */,
+				0498717C1CB27F8800C5F7B5 /* SwiftLintAutoCorrect-Bridging-Header.h */,
 			);
 			path = SwiftLintAutoCorrect;
 			sourceTree = "<group>";
@@ -123,7 +136,10 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				0498717F1CB27F8900C5F7B5 /* SwiftLintAutoCorrectTRVSXcode.m in Sources */,
 				04E4BF361CB25D3200BC7305 /* SwiftLintAutoCorrect.swift in Sources */,
+				049871811CB28EBF00C5F7B5 /* Formatter.swift in Sources */,
+				04E4BF411CB273A700BC7305 /* SaveHook.swift in Sources */,
 				04E4BF381CB25D3200BC7305 /* NSObject_Extension.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -209,6 +225,7 @@
 		04E4BF3D1CB25D3200BC7305 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CLANG_ENABLE_MODULES = YES;
 				COMBINE_HIDPI_IMAGES = YES;
 				DEPLOYMENT_LOCATION = YES;
 				DSTROOT = "$(HOME)";
@@ -219,6 +236,8 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				PRODUCT_BUNDLE_IDENTIFIER = net.ypresto.SwiftLintAutoCorrect;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "SwiftLintAutoCorrect/SwiftLintAutoCorrect-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				WRAPPER_EXTENSION = xcplugin;
 			};
 			name = Debug;
@@ -226,6 +245,7 @@
 		04E4BF3E1CB25D3200BC7305 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CLANG_ENABLE_MODULES = YES;
 				COMBINE_HIDPI_IMAGES = YES;
 				DEPLOYMENT_LOCATION = YES;
 				DSTROOT = "$(HOME)";
@@ -236,6 +256,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				PRODUCT_BUNDLE_IDENTIFIER = net.ypresto.SwiftLintAutoCorrect;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "SwiftLintAutoCorrect/SwiftLintAutoCorrect-Bridging-Header.h";
 				WRAPPER_EXTENSION = xcplugin;
 			};
 			name = Release;
@@ -259,6 +280,7 @@
 				04E4BF3E1CB25D3200BC7305 /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
 	};

SwiftLintAutoCorrect/Formatter.swift

@@ -0,0 +1,145 @@
+//
+//  Formatter.swift
+//  SwiftLintAutoCorrect
+//
+//  Created by yuya.tanaka on 2016/04/04.
+//  Copyright (c) 2016 Yuya Tanaka. All rights reserved.
+//
+
+import Foundation
+import Cocoa
+
+final class Formatter {
+    static var sharedInstance = Formatter()
+    private static let pathExtension = "swiftlintautocorrect"
+
+    let fileManager = NSFileManager.defaultManager()
+    let tempDirURL: NSURL = NSURL(fileURLWithPath: NSTemporaryDirectory()).URLByAppendingPathComponent("SwiftLintAutoCorrect-\(NSUUID().UUIDString)")
+
+    struct CursorPosition {
+        let line: Int
+        let column: Int
+    }
+
+
+    class func isFormattableDocument(document: NSDocument) -> Bool {
+        return (document.fileURL?.pathExtension?.lowercaseString == "swift") ?? false
+    }
+
+    func tryFormatDocument(document: IDESourceCodeDocument) -> Bool {
+        do {
+            try formatDocument(document)
+            return true
+        } catch let error as NSError {
+            NSAlert(error: error).runModal()
+        } catch {
+            NSAlert(error: NSError(domain: "net.ypresto.swiftlintautocorrect", code: 0, userInfo: [
+                NSLocalizedDescriptionKey: "Unknown error occured: \(error)"
+            ])).runModal()
+        }
+        return false
+    }
+
+    func formatDocument(document: IDESourceCodeDocument) throws {
+        let textStorage: DVTSourceTextStorage = document.textStorage()
+        let originalString = textStorage.string
+        let formattedString = try formatString(originalString)
+        if formattedString == originalString { return }
+
+        let selectedRange = SwiftLintAutoCorrectTRVSXcode.textView().selectedRange()
+        let cursorPosition = cursorPositionForSelectedRange(selectedRange, textStorage: textStorage)
+
+        textStorage.beginEditing()
+        textStorage.replaceCharactersInRange(NSRange(location: 0,  length: textStorage.length), withString: formattedString, withUndoManager: document.undoManager())
+        textStorage.endEditing()
+
+        let newLocation = locationForCursorPosition(cursorPosition, textStorage: textStorage)
+        SwiftLintAutoCorrectTRVSXcode.textView().setSelectedRange(NSRange(location: newLocation, length: 0))
+    }
+
+    private func cursorPositionForSelectedRange(selectedRange: NSRange, textStorage: DVTSourceTextStorage) -> CursorPosition {
+        let line = textStorage.lineRangeForCharacterRange(selectedRange).location
+        let column = selectedRange.location - startLocationOfLine(line, textStorage: textStorage)
+        return CursorPosition(line: line, column: column)
+    }
+
+    private func locationForCursorPosition(cursorPosition: CursorPosition, textStorage: DVTSourceTextStorage) -> Int {
+        let startOfLine = startLocationOfLine(cursorPosition.line, textStorage: textStorage)
+        let locationOfNextLine = textStorage.characterRangeForLineRange(NSRange(location: cursorPosition.line + 1, length: 0)).location
+        // XXX: Can reach EOF..? Cursor position may be trimmed one charactor when cursor is on EOF.
+        return min(startOfLine + cursorPosition.column, locationOfNextLine - 1)
+    }
+
+    private func startLocationOfLine(line: Int, textStorage: DVTSourceTextStorage) -> Int {
+        return textStorage.characterRangeForLineRange(NSRange(location: line, length: 0)).location
+    }
+
+    private func formatString(string: String) throws -> String {
+        return try withTempporaryFile { (filePath) in
+            try string.writeToFile(filePath, atomically: false, encoding: NSUTF8StringEncoding)
+            let swiftlintPath = try self.getExecutableOnPath("swiftlint")
+            let task = NSTask.launchedTaskWithLaunchPath(swiftlintPath, arguments: [
+                "autocorrect", "--path", filePath
+            ])
+            task.waitUntilExit()
+            if task.terminationStatus != 0 {
+                throw NSError(domain: "net.ypresto.swiftlintautocorrect", code: 0, userInfo: [
+                    NSLocalizedDescriptionKey: "Executing swiftlint exited with non-zero status."
+                ])
+            }
+            return try String(contentsOfFile: filePath, encoding: NSUTF8StringEncoding)
+        }
+    }
+
+    private func getExecutableOnPath(name: String) throws -> String {
+        let pipe = NSPipe()
+        let task = NSTask()
+        task.launchPath = "/bin/bash"
+        task.arguments = [
+            "-l", "-c", "which \(name)"
+        ]
+        task.standardOutput = pipe
+        task.launch()
+        task.waitUntilExit()
+        if task.terminationStatus != 0 {
+            throw NSError(domain: "net.ypresto.swiftlintautocorrect", code: 0, userInfo: [
+                NSLocalizedDescriptionKey: "Executing `which swiftlint` exited with non-zero status."
+            ])
+        }
+
+        let data = pipe.fileHandleForReading.readDataToEndOfFile()
+        guard let pathString = String(data: data, encoding: NSUTF8StringEncoding) else {
+            throw NSError(domain: "net.ypresto.swiftlintautocorrect", code: 0, userInfo: [
+                NSLocalizedDescriptionKey: "Cannot read result of `which swiftlint`."
+            ])
+        }
+        let path = pathString.stringByTrimmingCharactersInSet(NSCharacterSet.newlineCharacterSet())
+        if !fileManager.isExecutableFileAtPath(path) {
+            throw NSError(domain: "net.ypresto.swiftlintautocorrect", code: 0, userInfo: [
+                NSLocalizedDescriptionKey: "swiftlint at \(path) is not executable."
+            ])
+        }
+        return path
+    }
+
+    private func withTempporaryFile<T>(@noescape callback: (filePath: String) throws -> T) throws -> T {
+        try ensureTemporaryDirectory()
+        let filePath = createTemporaryPath()
+        if fileManager.fileExistsAtPath(filePath) {
+            throw NSError(domain: "net.ypresto.swiftlintautocorrect", code: 0, userInfo: [
+                NSLocalizedDescriptionKey: "Cannot write to \(filePath), file already exists."
+            ])
+        }
+        defer { _ = try? fileManager.removeItemAtPath(filePath) }
+        return try callback(filePath: filePath)
+    }
+
+    private func createTemporaryPath() -> String {
+        return tempDirURL.URLByAppendingPathComponent(NSUUID().UUIDString).path! + ".swift"
+    }
+
+    private func ensureTemporaryDirectory() throws {
+        if fileManager.fileExistsAtPath(tempDirURL.path!) { return }
+        try fileManager.createDirectoryAtURL(tempDirURL, withIntermediateDirectories: true, attributes: nil)
+    }
+}

SwiftLintAutoCorrect/NSObject_Extension.swift

@@ -2,7 +2,7 @@
 //  NSObject_Extension.swift
 //
 //  Created by yuya.tanaka on 2016/04/04.
-//  Copyright © 2016年 Yuya Tanaka. All rights reserved.
+//  Copyright (c) 2016 Yuya Tanaka. All rights reserved.
 //
 
 import Foundation

SwiftLintAutoCorrect/SaveHook.swift

@@ -0,0 +1,50 @@
+//
+//  SaveHook.swift
+//  SwiftLintAutoCorrect
+//
+//  Created by yuya.tanaka on 2016/04/04.
+//  Copyright (c) 2016 Yuya Tanaka. All rights reserved.
+//
+
+// http://blog.waft.me/method-swizzling/
+
+import Foundation
+import Cocoa
+
+final class SaveHook {
+
+    private static var swizzled = false
+    static var enabled = true
+
+    private init() {
+        fatalError()
+    }
+
+    class func swizzle() {
+        if swizzled { return }
+        swizzled = true
+
+        let fromMethod = class_getInstanceMethod(NSDocument.self, #selector(NSDocument.saveDocumentWithDelegate(_:didSaveSelector:contextInfo:)))
+        let toMethod = class_getInstanceMethod(NSDocument.self, #selector(NSDocument.swiftLintAutoCorrectSaveDocumentWithDelegate(_:didSaveSelector:contextInfo:)))
+        method_exchangeImplementations(fromMethod, toMethod)
+    }
+
+    class func tryOnSaveDocument(document: NSDocument) -> Bool {
+        if !enabled { return true }
+        Formatter.isFormattableDocument(document)
+        let sourceCodeDocument: IDESourceCodeDocument = SwiftLintAutoCorrectTRVSXcode.sourceCodeDocument()
+        guard sourceCodeDocument == document else { return true }
+        return Formatter.sharedInstance.tryFormatDocument(sourceCodeDocument)
+    }
+}
+
+// https://github.com/travisjeffery/ClangFormat-Xcode/blob/a22114907592fb5d5b1043a4919d7be3e1496741/ClangFormat/NSDocument+TRVSClangFormat.m
+extension NSDocument {
+
+    dynamic func swiftLintAutoCorrectSaveDocumentWithDelegate(delegate: AnyObject?, didSaveSelector: Selector, contextInfo: UnsafeMutablePointer<Void>) -> Void {
+        if SaveHook.tryOnSaveDocument(self) {
+            // NOTE: Call original method
+            swiftLintAutoCorrectSaveDocumentWithDelegate(delegate, didSaveSelector: didSaveSelector, contextInfo: contextInfo);
+        }
+    }
+}

SwiftLintAutoCorrect/SwiftLintAutoCorrect-Bridging-Header.h

@@ -0,0 +1,5 @@
+//
+//  Use this file to import your target's public headers that you would like to expose to Swift.
+//
+
+#import "SwiftLintAutoCorrectTRVSXcode.h"

SwiftLintAutoCorrect/SwiftLintAutoCorrect.swift

@@ -2,7 +2,7 @@
 //  SwiftLintAutoCorrect.swift
 //
 //  Created by yuya.tanaka on 2016/04/04.
-//  Copyright © 2016年 Yuya Tanaka. All rights reserved.
+//  Copyright (c) 2016 Yuya Tanaka. All rights reserved.
 //
 
 import AppKit
@@ -14,36 +14,76 @@ class SwiftLintAutoCorrect: NSObject {
     var bundle: NSBundle
     lazy var center = NSNotificationCenter.defaultCenter()
 
+    var enableMenuItem: NSMenuItem!
+    var disableMenuItem: NSMenuItem!
+
     init(bundle: NSBundle) {
         self.bundle = bundle
 
         super.init()
-        center.addObserver(self, selector: Selector("createMenuItems"), name: NSApplicationDidFinishLaunchingNotification, object: nil)
+        center.addObserver(self, selector: #selector(SwiftLintAutoCorrect.onApplicationDidFinishLaunching), name: NSApplicationDidFinishLaunchingNotification, object: nil)
     }
 
     deinit {
         removeObserver()
     }
 
-    func removeObserver() {
+    private func removeObserver() {
         center.removeObserver(self)
     }
 
-    func createMenuItems() {
+    func onApplicationDidFinishLaunching() {
+        SaveHook.swizzle()
+        createMenuItems()
+    }
+
+    private func createMenuItems() {
         removeObserver()
 
-        var item = NSApp.mainMenu!.itemWithTitle("Edit")
+        guard let item = NSApp.mainMenu!.itemWithTitle("Edit") else { return }
-        if item != nil {
+
-            var actionMenuItem = NSMenuItem(title:"Do Action", action:"doMenuAction", keyEquivalent:"")
+        let pluginMenu = NSMenu(title:"SwiftLint Auto Correct")
-            actionMenuItem.target = self
+        let pluginMenuItem = NSMenuItem(title:"SwiftLint Auto Correct", action: nil, keyEquivalent: "")
-            item!.submenu!.addItem(NSMenuItem.separatorItem())
+        pluginMenuItem.submenu = pluginMenu
-            item!.submenu!.addItem(actionMenuItem)
+
-        }
+        let autoCorrectMenuItem = NSMenuItem(title:"Auto Correct", action:#selector(SwiftLintAutoCorrect.doAutoCorrect), keyEquivalent:"")
+        autoCorrectMenuItem.target = self
+        pluginMenu.addItem(autoCorrectMenuItem)
+
+        let enableMenuItem = NSMenuItem(title:"Enable Format on Save", action:#selector(SwiftLintAutoCorrect.doEnableFormatOnSave), keyEquivalent:"")
+        enableMenuItem.target = self
+        pluginMenu.addItem(enableMenuItem)
+        self.enableMenuItem = enableMenuItem
+
+        let disableMenuItem = NSMenuItem(title:"Disable Format on Save", action:#selector(SwiftLintAutoCorrect.doDisableFormatOnSave), keyEquivalent:"")
+        disableMenuItem.target = self
+        pluginMenu.addItem(disableMenuItem)
+        self.disableMenuItem = disableMenuItem
+
+        item.submenu!.addItem(NSMenuItem.separatorItem())
+        item.submenu!.addItem(pluginMenuItem)
+
+        updateMenuVisibility()
     }
 
-    func doMenuAction() {
+    func doAutoCorrect() {
-        let error = NSError(domain: "Hello World!", code:42, userInfo:nil)
+        let sourceCodeDocument: IDESourceCodeDocument = SwiftLintAutoCorrectTRVSXcode.sourceCodeDocument()
-        NSAlert(error: error).runModal()
+        guard Formatter.isFormattableDocument(sourceCodeDocument) else { return }
+        Formatter.sharedInstance.tryFormatDocument(sourceCodeDocument)
+    }
+
+    func doEnableFormatOnSave() {
+        SaveHook.enabled = true
+        updateMenuVisibility()
+    }
+
+    func doDisableFormatOnSave() {
+        SaveHook.enabled = false
+        updateMenuVisibility()
+    }
+
+    func updateMenuVisibility() {
+        self.enableMenuItem.hidden = SaveHook.enabled
+        self.disableMenuItem.hidden = !SaveHook.enabled
     }
 }
-

SwiftLintAutoCorrect/SwiftLintAutoCorrectTRVSXcode.h

@@ -0,0 +1,134 @@
+//
+//  TRVSXcode.h
+//  ClangFormat
+//
+//  Created by Travis Jeffery on 1/9/14.
+//  Copyright (c) 2014 Travis Jeffery. All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+
+// here be dragons... have to declare these private apis
+
+@interface DVTTextDocumentLocation : NSObject
+@property (readonly) NSRange characterRange;
+@property (readonly) NSRange lineRange;
+@end
+
+@interface DVTTextPreferences : NSObject
++ (id)preferences;
+@property BOOL trimWhitespaceOnlyLines;
+@property BOOL trimTrailingWhitespace;
+@property BOOL useSyntaxAwareIndenting;
+@end
+
+@interface DVTSourceTextStorage : NSTextStorage
+- (void)replaceCharactersInRange:(NSRange)range
+                      withString:(NSString *)string
+                 withUndoManager:(id)undoManager;
+- (NSRange)lineRangeForCharacterRange:(NSRange)range;
+- (NSRange)characterRangeForLineRange:(NSRange)range;
+- (void)indentCharacterRange:(NSRange)range undoManager:(id)undoManager;
+@end
+
+@interface DVTFileDataType : NSObject
+@property (readonly) NSString *identifier;
+@end
+
+@interface DVTFilePath : NSObject
+@property (readonly) NSURL *fileURL;
+@property (readonly) DVTFileDataType *fileDataTypePresumed;
+@end
+
+@interface IDEContainerItem : NSObject
+@property (readonly) DVTFilePath *resolvedFilePath;
+@end
+
+@interface IDEGroup : IDEContainerItem
+
+@end
+
+@interface IDEFileReference : IDEContainerItem
+
+@end
+
+@interface IDENavigableItem : NSObject
+@property (readonly) IDENavigableItem *parentItem;
+@property (readonly) id representedObject;
+@end
+
+@interface IDEFileNavigableItem : IDENavigableItem
+@property (readonly) DVTFileDataType *documentType;
+@property (readonly) NSURL *fileURL;
+@end
+
+@interface IDEStructureNavigator : NSObject
+@property (retain) NSArray *selectedObjects;
+@end
+
+@interface IDENavigableItemCoordinator : NSObject
+- (id)structureNavigableItemForDocumentURL:(id)arg1
+                               inWorkspace:(id)arg2
+                                     error:(id *)arg3;
+@end
+
+@interface IDENavigatorArea : NSObject
+- (id)currentNavigator;
+@end
+
+@interface IDEWorkspaceTabController : NSObject
+@property (readonly) IDENavigatorArea *navigatorArea;
+@end
+
+@interface IDEDocumentController : NSDocumentController
++ (id)editorDocumentForNavigableItem:(id)arg1;
++ (id)retainedEditorDocumentForNavigableItem:(id)arg1 error:(id *)arg2;
++ (void)releaseEditorDocument:(id)arg1;
+@end
+
+@interface IDESourceCodeDocument : NSDocument
+- (DVTSourceTextStorage *)textStorage;
+- (NSUndoManager *)undoManager;
+@end
+
+@interface IDESourceCodeComparisonEditor : NSObject
+@property (readonly) NSTextView *keyTextView;
+@property (retain) NSDocument *primaryDocument;
+@end
+
+@interface IDESourceCodeEditor : NSObject
+@property (retain) NSTextView *textView;
+- (IDESourceCodeDocument *)sourceCodeDocument;
+@end
+
+@interface IDEEditorContext : NSObject
+- (id)editor;  // returns the current editor. If the editor is the code editor,
+// the class is `IDESourceCodeEditor`
+@end
+
+@interface IDEEditorArea : NSObject
+- (IDEEditorContext *)lastActiveEditorContext;
+@end
+
+@interface IDEWorkspaceWindowController : NSObject
+@property (readonly) IDEWorkspaceTabController *activeWorkspaceTabController;
+- (IDEEditorArea *)editorArea;
+@end
+
+@interface IDEWorkspace : NSObject
+@property (readonly) DVTFilePath *representingFilePath;
+@end
+
+@interface IDEWorkspaceDocument : NSDocument
+@property (readonly) IDEWorkspace *workspace;
+@end
+
+@interface SwiftLintAutoCorrectTRVSXcode : NSObject
+
++ (IDESourceCodeDocument *)sourceCodeDocument;
++ (NSTextView *)textView;
++ (BOOL)textViewHasSelection;
++ (NSRange)wholeRangeOfTextView;
++ (NSArray *)selectedFileNavigableItems;
+
+@end

SwiftLintAutoCorrect/SwiftLintAutoCorrectTRVSXcode.m

@@ -0,0 +1,102 @@
+//
+//  TRVSXcode.m
+//  ClangFormat
+//
+//  Created by Travis Jeffery on 1/9/14.
+//  Copyright (c) 2014 Travis Jeffery. All rights reserved.
+//
+
+#import "SwiftLintAutoCorrectTRVSXcode.h"
+
+@implementation SwiftLintAutoCorrectTRVSXcode
+
++ (id)currentEditor {
+  if ([[self windowController]
+          isKindOfClass:NSClassFromString(@"IDEWorkspaceWindowController")]) {
+    IDEWorkspaceWindowController *workspaceController =
+        (IDEWorkspaceWindowController *)[self windowController];
+    IDEEditorArea *editorArea = [workspaceController editorArea];
+    IDEEditorContext *editorContext = [editorArea lastActiveEditorContext];
+    return [editorContext editor];
+  }
+  return nil;
+}
+
++ (IDESourceCodeDocument *)sourceCodeDocument {
+  if ([[self currentEditor]
+          isKindOfClass:NSClassFromString(@"IDESourceCodeEditor")]) {
+    return [[self currentEditor] sourceCodeDocument];
+  }
+
+  if ([[self currentEditor]
+          isKindOfClass:NSClassFromString(@"IDESourceCodeComparisonEditor")] &&
+      [[[self currentEditor] primaryDocument]
+          isKindOfClass:NSClassFromString(@"IDESourceCodeDocument")]) {
+    return (IDESourceCodeDocument *)[[self currentEditor] primaryDocument];
+  }
+
+  return nil;
+}
+
++ (NSTextView *)textView {
+  if ([[self currentEditor]
+          isKindOfClass:NSClassFromString(@"IDESourceCodeEditor")]) {
+    return [[self currentEditor] textView];
+  }
+
+  if ([[self currentEditor]
+          isKindOfClass:NSClassFromString(@"IDESourceCodeComparisonEditor")]) {
+    return [[self currentEditor] keyTextView];
+  }
+
+  return nil;
+}
+
++ (BOOL)textViewHasSelection {
+  return [[self textView] selectedRange].length > 0;
+}
+
++ (NSRange)wholeRangeOfTextView {
+  return NSMakeRange(0, [[[self textView] textStorage] length]);
+}
+
++ (NSArray *)selectedFileNavigableItems {
+  if (![[self windowController]
+          isKindOfClass:NSClassFromString(@"IDEWorkspaceWindowController")])
+    return nil;
+
+  IDEWorkspaceWindowController *workspaceController =
+      (IDEWorkspaceWindowController *)[self windowController];
+  IDEWorkspaceTabController *workspaceTabController =
+      [workspaceController activeWorkspaceTabController];
+  IDENavigatorArea *navigatorArea = [workspaceTabController navigatorArea];
+  id currentNavigator = [navigatorArea currentNavigator];
+
+  if (![currentNavigator
+          isKindOfClass:NSClassFromString(@"IDEStructureNavigator")])
+    return nil;
+
+  NSMutableArray *array = [NSMutableArray array];
+
+  [[currentNavigator selectedObjects]
+      enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
+          if (![obj isKindOfClass:NSClassFromString(@"IDEFileNavigableItem")])
+            return;
+
+          IDEFileNavigableItem *fileNavigableItem = obj;
+          NSString *uti = fileNavigableItem.documentType.identifier;
+          if ([[NSWorkspace sharedWorkspace]
+                            type:uti
+                  conformsToType:(NSString *)kUTTypeSourceCode]) {
+            [array addObject:fileNavigableItem];
+          }
+      }];
+
+  return array;
+}
+
++ (NSWindowController *)windowController {
+  return [[NSApp keyWindow] windowController];
+}
+
+@end