一切顺利，直到我的项目无法编译。我在两个文件中看到了这些内容。
Terminator found in the middle of a basic block!
label %50
LLVM ERROR: Broken function found, compilation aborted!
Terminator found in the middle of a basic block!
label %71
LLVM ERROR: Broken function found, compilation aborted!
编译器给出的错误
Command /Applications/Xcode-beta 2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc failed with exit code 1
我尝试解决它，但没有成功。 较旧版本的文件编译。 问题出在文件中，但终止符是什么？
问题出在哪里？
修改
这是一些代码，类很大
LandscapeViewController
import UIKit
class LandscapeViewController: UIViewController,UIScrollViewDelegate {
// MARK: Properties
@IBOutlet weak var scrollView: UIScrollView!
@IBOutlet weak var pageControl: UIPageControl!
var search: Search!
private var firstTime = true
private var downloadTasks = [NSURLSessionDownloadTask]()
@IBAction func pageChange(sender: UIPageControl){
UIView.animateWithDuration(0.3, delay: 0, options: UIViewAnimationOptions.CurveEaseInOut, animations: {
self.scrollView.contentOffset = CGPoint(x: self.scrollView.bounds.size.width * CGFloat(sender.currentPage), y: 0)
}, completion: nil )
}
// MARK: Buttons
private func tileButtons(searchResults: [SearchResult]){
var columnsPerPage = 5
var rowsPerPage = 3
var itemWidth: CGFloat = 96
var itemHeight: CGFloat = 88
var marginX: CGFloat = 0
var marginY: CGFloat = 20
let buttonWidth: CGFloat = 82
let buttonHeight: CGFloat = 82
let scrollViewWidth = scrollView.bounds.size.width
switch scrollViewWidth{
case 568:
columnsPerPage = 6
itemWidth = 94
marginX = 2
case 667:
columnsPerPage = 7
itemWidth = 95
itemHeight = 98
marginX = 1
marginY = 29
case 736:
columnsPerPage = 8
rowsPerPage = 4
itemWidth = 92
default:
break
}
let paddingHorz = (itemWidth - buttonWidth)/2
let paddingVert = (itemHeight - buttonHeight)/2
var row = 0
var column = 0
var x = marginX
for (index,searchResult) in searchResults.enumerate(){
let button = UIButton(type: .Custom)
button.setBackgroundImage(UIImage(named: "LandscapeButton"), forState: .Normal)
downloadImageForSearchResult(searchResult, andPlaceOnButton: button)
button.tag = 2000 + index
button.addTarget(self, action: Selector("buttonPressed:"), forControlEvents: .TouchUpInside)
button.backgroundColor = UIColor.whiteColor()
button.frame = CGRect(x: x + paddingHorz, y: marginY + CGFloat(row)*itemHeight + paddingVert, width: buttonWidth, height: buttonHeight)
scrollView.addSubview(button)
++row
if row == rowsPerPage{
row = 0
++column
x += itemWidth
if column == columnsPerPage{
column = 0
x += marginX * 2
}
}
}
let buttonsPerPage = columnsPerPage * rowsPerPage
let numPages = 1 + (searchResults.count - 1) / buttonsPerPage
pageControl.numberOfPages = numPages
pageControl.currentPage = 0
scrollView.contentSize = CGSize(width: CGFloat(numPages) * scrollViewWidth, height: scrollView.bounds.size.height)
}
private func downloadImageForSearchResult(searchResult: SearchResult,andPlaceOnButton button: UIButton){
if let url = NSURL(string: searchResult.artworkURL60){
let session = NSURLSession.sharedSession()
let downloadTask = session.downloadTaskWithURL(url,completionHandler: { [weak button] url, response, error in
if error == nil && url != nil{
if let data = NSData(contentsOfURL: url!){
if let image = UIImage(data: data){
let resizedImage = image.resizedImageWithBounds(CGSize(width: 60, height: 60))
dispatch_async(dispatch_get_main_queue()){
if let button = button{
button.setImage(resizedImage, forState: .Normal)
}
}
}
}
}
})
downloadTasks.append(downloadTask!)
downloadTask?.resume()
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "ShowDetail"{
switch search.state{
case .Results(let list):
let destinationViewController = segue.destinationViewController as! DetailViewController
let searchResult = list[sender!.tag - 2000]
destinationViewController.searchResult = searchResult
default:
break
}
}
}
func buttonPressed(sender: UIButton){
performSegueWithIdentifier("ShowDetail", sender: sender)
}
// MARK: UIScrollViewDelegate
func scrollViewDidScroll(scrollView: UIScrollView) {
let width = scrollView.bounds.size.width
let currentPage = Int((scrollView.contentOffset.x + width/2) / width)
pageControl.currentPage = currentPage
}
// MARK: Lifecycle
override func viewDidLoad() {
super.viewDidLoad()
pageControl.numberOfPages = 0
scrollView.backgroundColor = UIColor(patternImage: UIImage(named: "LandscapeBackground")!)
view.removeConstraints(view.constraints)
view.translatesAutoresizingMaskIntoConstraints = true
pageControl.removeConstraints(pageControl.constraints)
pageControl.translatesAutoresizingMaskIntoConstraints = true
scrollView.removeConstraints(scrollView.constraints)
scrollView.translatesAutoresizingMaskIntoConstraints = true
// Do any additional setup after loading the view.
}
override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
scrollView.frame = view.bounds
pageControl.frame = CGRect(x: 0, y: view.frame.size.height - pageControl.frame.size.height, width: view.frame.size.width, height: pageControl.frame.size.height)
if firstTime{
firstTime = false
switch search.state{
case .NotSearchedYet:
break
case .Loading:
showSpinner()
case .NoResults:
showNothingFoundLabel()
case.Results(let list):
tileButtons(list)
}
}
}
private func showNothingFoundLabel() {
let label = UILabel(frame: CGRect.zeroRect)
label.text = "Nothing Found"
label.backgroundColor = UIColor.clearColor()
label.textColor = UIColor.whiteColor()
label.sizeToFit()
var rect = label.frame
rect.size.width = ceil(rect.size.width/2) * 2
rect.size.height = ceil(rect.size.height/2) * 2
label.frame = rect
label.center = CGPoint(x: CGRectGetMidX(scrollView.bounds), y: CGRectGetMidY(scrollView.bounds))
view.addSubview(label)
}
private func showSpinner(){
let spinner = UIActivityIndicatorView(activityIndicatorStyle: .WhiteLarge)
spinner.center = CGPoint(x: CGRectGetMidX(scrollView.bounds) + 0.5, y: CGRectGetMidY(scrollView.bounds) + 0.5)
spinner.tag = 1000
view.addSubview(spinner)
spinner.startAnimating()
}
func searchResultsRecived(){
hideSpinner()
switch search.state {
case .NotSearchedYet, .Loading:
break
case .NoResults:
showNothingFoundLabel()
case .Results(let list):
tileButtons(list)
}
}
private func hideSpinner(){
view.viewWithTag(1000)?.removeFromSuperview()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
deinit{
print("deinit \(self)")
for task in downloadTasks{
task.cancel()
}
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
SearchViewController
导入UIKit
class SearchViewController: UIViewController,UISearchBarDelegate,UITableViewDataSource,UITableViewDelegate {
private struct TableViewCellIdentifier {
static let searchResultCell = "SearchResultCell"
static let nothingFoundCell = "NothingFoundCell"
static let loadingCell = "LoadingCell"
}
// MARK: LandscapeViewController
override func willTransitionToTraitCollection(newCollection: UITraitCollection, withTransitionCoordinator coordinator: UIViewControllerTransitionCoordinator) {
super.willTransitionToTraitCollection(newCollection, withTransitionCoordinator: coordinator)
switch newCollection.verticalSizeClass{
case .Compact:
showLandscapeViewWithCoordinator(coordinator)
case .Regular,.Unspecified:
hideLandscapeViewWithCoordinator(coordinator)
}
}
private func showLandscapeViewWithCoordinator(coordinator: UIViewControllerTransitionCoordinator){
precondition(landscapeViewController == nil)
landscapeViewController = storyboard?.instantiateViewControllerWithIdentifier("LandscapeViewController") as? LandscapeViewController
if let controller = landscapeViewController{
controller.search = search
controller.view.frame = view.frame
controller.view.alpha = 0
view.addSubview(controller.view)
addChildViewController(controller)
coordinator.animateAlongsideTransition({ _ in
if self.presentedViewController != nil{
self.dismissViewControllerAnimated(true, completion: nil)
}
self.searchBar.resignFirstResponder()
controller.view.alpha = 1
}, completion: { _ in
controller.didMoveToParentViewController(self)
})
}
}
private func hideLandscapeViewWithCoordinator(coordinator: UIViewControllerTransitionCoordinator){
if let controller = landscapeViewController{
controller.willMoveToParentViewController(nil)
coordinator.animateAlongsideTransition({ _ in
controller.view.alpha = 0
}, completion: { _ in
if self.presentedViewController != nil {
self.dismissViewControllerAnimated(true, completion: nil)
}
controller.view.removeFromSuperview()
controller.removeFromParentViewController()
self.landscapeViewController = nil
})
}
}
private func showNetworkError(){
let alert = UIAlertController(title: "Whoops...", message: "There was an error reading from the iTunes Store. Please try again.", preferredStyle: .Alert)
let action = UIAlertAction(title: "OK", style: .Default, handler: nil)
alert.addAction(action)
presentViewController(alert, animated: true, completion: nil)
}
// MARK: Detail ViewController
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "ShowDetail" {
switch search.state{
case . Results(let list):
let indexPath = sender as! NSIndexPath
let searchResult = list[indexPath.row]
let detailViewController = segue.destinationViewController as! DetailViewController
detailViewController.searchResult = searchResult
default:
break
}
}
}
// MARK: Properties
@IBOutlet weak var searchBar: UISearchBar!
@IBOutlet weak var tableView: UITableView!
@IBOutlet weak var segmentedControl: UISegmentedControl!
let search = Search()
private var landscapeViewController: LandscapeViewController?
// MARK: Methodes
@IBAction func segmentedControl(sender: UISegmentedControl) {
performSearch()
}
override func viewDidLoad() {
super.viewDidLoad()
tableView.contentInset = UIEdgeInsets(top: 108, left: 0, bottom: 0, right: 0)
tableView.rowHeight = 80
searchBar.becomeFirstResponder()
configureNib(nibName: TableViewCellIdentifier.searchResultCell)
configureNib(nibName: TableViewCellIdentifier.nothingFoundCell)
configureNib(nibName: TableViewCellIdentifier.loadingCell)
}
private func configureNib(nibName nibName: String){
let cellNib = UINib(nibName: nibName, bundle: nil)
tableView.registerNib(cellNib, forCellReuseIdentifier: nibName)
}
// MARK: UISearchBarDelegate
func searchBarSearchButtonClicked(searchBar: UISearchBar){
performSearch()
}
private func performSearch() {
if let category = Search.Category(rawValue: segmentedControl.selectedSegmentIndex){
search.performSearchForText(searchBar.text!, category: category){
success in
if !success{
self.showNetworkError()
}
if let controller = self.landscapeViewController{
controller.searchResultsRecived()
}
self.tableView.reloadData()
}
tableView.reloadData()
searchBar.resignFirstResponder()
}
}
func positionForBar(bar: UIBarPositioning) -> UIBarPosition {
return .TopAttached
}
// MARK: TableView
// MARK: - UITableViewDataSource
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
switch search.state{
case .NotSearchedYet:
return 0
case .Loading,.NoResults:
return 1
case .Results(let list):
return list.count
}
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
switch search.state{
case .NotSearchedYet:
fatalError("Should never get here")
case .Loading:
let cell = tableView.dequeueReusableCellWithIdentifier(TableViewCellIdentifier.loadingCell, forIndexPath: indexPath)
let spinner = cell.viewWithTag(100) as! UIActivityIndicatorView
spinner.startAnimating()
return cell
case .NoResults:
return tableView.dequeueReusableCellWithIdentifier(TableViewCellIdentifier.nothingFoundCell, forIndexPath: indexPath)
case .Results(let list):
let cell = tableView.dequeueReusableCellWithIdentifier(TableViewCellIdentifier.searchResultCell, forIndexPath: indexPath) as! SearchResultCell
let searchResult = list[indexPath.row]
cell.configureForSearchResult(searchResult)
return cell
}
}
// MARK: UITableViewDelegate
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
tableView.deselectRowAtIndexPath(indexPath, animated: true)
performSegueWithIdentifier("ShowDetail", sender: indexPath)
}
func tableView(tableView: UITableView, willSelectRowAtIndexPath indexPath: NSIndexPath) -> NSIndexPath? {
switch search.state{
case .NotSearchedYet,.NoResults,.Loading:
return nil
case .Results:
return indexPath
}
}
}
答案 0 :(得分：2)
这是Swift编译器中的一个错误，您希望向Apple提交雷达以报告此情况。除此之外，你无能为力。
答案 1 :(得分：1)
我有这个错误，因为我有一个枚举的开关，其中包含一个包含数组有效负载的情况（不要问我为什么，我不知道）。
我认为enum是searchView中的搜索状态：SearchViewController的cellForRowAtIndexPath：方法和LandscapeViewController的prepareForSegue：方法（.Result案例包含列表）。
在我的情况下，将有效负载更改为设置而不是数组。 （作为一个工作区，直到它被修复）