SWIFT编译错误BITCAST需要两个操作数要指向指针或既不是
题
在xcode6 beta中,类似于这的东西,但是用xcode6 beta 4有误差。修复错误后,无错误代码我的位置低于
背景: 我在这里使用的课程实现了生成的,它允许用户从地址簿中选择联系人。我想收到添加到该人的第一封电子邮件。
func peoplePickerNavigationController(peoplePicker: ABPeoplePickerNavigationController!,didSelectPerson person: ABRecordRef!) {
var emails = ABRecordCopyValue(person, kABPersonEmailProperty)
var emailsObj = emails.takeUnretainedValue() as AnyObject
var index = 0 as CFIndex
var emailAddress = ABMultiValueCopyValueAtIndex(emailsObj, index)
println(emailAddress)
}
.
但是,当我编译时,我获得构建失败:
bitcast需要两个操作数是指针还是既不是 %80= bitcast%objc_object *%79到%pss9anyobject_,!dbg!860 存储的值类型与指针操作数类型不匹配! 存储%pss9anyobject_%80,%objc_object **%81,对齐4,!dbg!860 %objc_object *存储的值类型与指针操作数类型不匹配! Store%PSS9AnyObject_%80,%objc_object **%85,对齐4,!dbg!864 %objc_object * llvm错误:找到损坏功能,编译中止! 命令/应用程序/ xcode6-beta4.app/contents/developer/toolchains/xcodedefault.xctoolchain/usr/bin/swift失败,退出代码1
嫌疑线是:
var emailsObj = emails.takeUnretainedValue() as AnyObject
var emailAddress = ABMultiValueCopyValueAtIndex(emailsObj, index)
.
当我将代码更改为
时func peoplePickerNavigationController(peoplePicker: ABPeoplePickerNavigationController!,didSelectPerson person: ABRecordRef!) {
var emails = ABRecordCopyValue(person, kABPersonEmailProperty)
var emailsObj:AnyObject? = emails.takeRetainedValue() as AnyObject
var index = 0 as CFIndex
var emailAddress = ABMultiValueCopyValueAtIndex(emailsObj, index)
println(emailAddress)
}
.
错误缩短到
bitcast需要两个操作数是指针还是既不是 %79= bitcast%objc_object *%78到%pss9anyobject_,!dbg!856 存储的值类型与指针操作数类型不匹配! Store%PSS9AneObject_%79,%objc_object **%80,align 8,!dbg!856 %objc_object * llvm错误:找到损坏功能,编译中止! 命令/应用程序/ xcode6-beta4.app/contents/developer/toolchains/xcodedefault.xctoolchain/usr/bin/swift失败,退出代码1
提前感谢任何帮助
亚伦
解决方案
func peoplePickerNavigationController(peoplePicker: ABPeoplePickerNavigationController!,didSelectPerson person: ABRecordRef!) {
var unmanagedEmails = ABRecordCopyValue(person, kABPersonEmailProperty)
let emailObj: ABMultiValueRef = Unmanaged.fromOpaque(unmanagedEmails.toOpaque()).takeUnretainedValue() as NSObject as ABMultiValueRef
var index = 0 as CFIndex
var unmanagedEmail = ABMultiValueCopyValueAtIndex(emailObj, index)
var emailAddress:String = Unmanaged.fromOpaque(unmanagedEmail.toOpaque()).takeUnretainedValue() as NSObject as String
println(emailAddress)
}
.
更完整的答案可以找到这里。