Esq*_*uth 15 closures swift swift4
使用XCode 9,Beta 3. Swift 4.
statsView.createButton("Button name") { [weak self] Void in
//stuff stuff
self?.doSomething()
}
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我得到了这样的数百个错误,如何修复它们?
错误:
Cannot convert value of type '(_) -> ()' to expected argument type '() -> ()'
Argument passed to call that takes no arguments
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Zey*_*maz 32
我们似乎不再使用Void inSwift 4了.我是如何修理它们的:
删除Void关键字:
statsView.createButton("Button name") { [weak self] in
//stuff stuff
self?.doSomething()
}
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你必须使用in或编译器与抱怨
Expected ',' separator
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如果没有参数,则根本不使用Void in.
statsView.createButton("Button name") { //No "Void in" in here
print("hi")
}
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