xcode Swift 编译器错误 - 在为“tableView”发出 SIL 时
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Swift compiler error - While emitting SIL for 'tableView' at
提问by Renu
Using Xcode 6 Beta 5. I am building a tableviewcontroller and these few lines of code won't compile.
使用 Xcode 6 Beta 5。我正在构建一个 tableviewcontroller，这几行代码将无法编译。
func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell!
{
let cell : OrderHistoryCell = tableView.dequeueReusableCellWithIdentifier("CellForOrderHistory", forIndexPath: indexPath) as OrderHistoryCell
var orderHistoryDataModel: OrderHistoryDataModel = self.orderItemsArray[indexPath.section][indexPath.row - 1] as OrderHistoryDataModel
cell.nameLabel.text = orderHistoryDataModel.orderItem.title
cell.statusLabel.text = orderHistoryDataModel.shipment.shippingStatus.toRaw()
let imageData: NSData = NSData(contentsOfURL: orderHistoryDataModel.orderItem.imageURL)
cell.thumbnailImageView.image = UIImage(data: imageData)
return cell
}
Here's the compile error:
这是编译错误：
CompileSwift normal x86_64 com.apple.xcode.tools.swift.compiler
........ ............
Stack dump: ....... ........
intermediates/newProject.build/Debug-iphonesimulator/newProject.build/Objects-
normal/x86_64/OrderHistoryViewController.o
1. While emitting SIL for 'tableView' at /Users/testuser/Downloads/newProject/newProject/OrderHistoryViewController.swift:131:5
<unknown>:0: error: unable to execute command: Segmentation fault: 11
<unknown>:0: error: swift frontend command failed due to signal
(use -v to see invocation) Command /Applications/Xcode6-Beta5.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc
failed with exit code 254
回答by Kostiantyn Koval
The problem in this line
这一行的问题
var orderHistoryDataModel: OrderHistoryDataModel = self.orderItemsArray[indexPath.section][indexPath.row - 1] as OrderHistoryDataModel
You have an Array of Arrays of OrderHistoryDataModel.
Xcode can't understand type of the object when you get object from 2 arrays at the time - [indexPath.section][indexPath.row - 1].
To fix it - Specify the type of the objects inorderItemsArraylike this
您有一个Arrays of ArraysOrderHistoryDataModel。
当您当时从 2 个数组中获取对象时，Xcode 无法理解对象的类型 - [indexPath.section][indexPath.row - 1]。
修复它 -orderItemsArray像这样 指定对象的类型
var orderItemsArray: [[OrderHistoryDataModel]] = []
You can also try to get object in 2 steps. Change this code [indexPath.section][indexPath.row - 1]to this:
您也可以尝试分两步获取对象。将此代码更改[indexPath.section][indexPath.row - 1]为：
var models: [OrderHistoryDataModel] = self.orderItemsArray[indexPath.section]
var orderHistoryDataModel: OrderHistoryDataModel = models[indexPath.row - 1]
Also clear your project and delete DerivedData folder.
还要清除您的项目并删除 DerivedData 文件夹。
回答by newDeveloper
if Koval's answer didn't fix it, see if your class has a bool that's an implicitly unwrapped optional (!) and you try to use a ternary operation on it.
如果 Koval 的回答没有解决它，请查看您的类是否有一个隐式展开的可选 (!) 的 bool，然后您尝试对其使用三元运算。
in my case I had something like this in my model class
就我而言，我的模型类中有这样的东西
var isParent: Bool!
and in cellForRow(_)
并在 cellForRow(_)
folder.isParent ? "xyz" : "abc"
In my case it was an easy fix. instead of making the bool an implicitly unwrapped property I just assign it to false by default. It was getting set in the initializer anyway.
在我的情况下，这是一个简单的修复。我没有将 bool 设置为隐式展开的属性，而是默认将其分配给 false。无论如何，它是在初始化程序中设置的。
