swiftlang/swift

[SR-9795] Cannot use `super` in lazy property: 'super' cannot be used outside of class members

開放

#52,220 建立於 2019年1月29日

 (12 則留言) (0 個反應) (1 位負責人)Swift (10,719 個分叉)batch import
bugcompilergood first issue

倉庫指標

星標
 (69,989 顆星)
PR 合併指標
 (平均合併 8天 17小時) (30 天內合併 510 個 PR)

描述

Previous ID SR-9795
Radar None
Original Reporter @marcomasser
Type Bug

Tested with Swift 4.2.1 (Xcode 10.1) and Swift 5 from Xcode 10.2 beta (swiftlang-1001.0.45.7 clang-1001.0.37.7).

Votes 0
Component/s Compiler
Labels Bug, StarterBug
Assignee @theblixguy
Priority Medium

md5: 75741cacf781b9db21044152b379d272

Issue Description:

I’m not sure this is a bug or if this works as expected:

class Foo {
    var name = "Default Name"
}

class Bar: Foo {
    lazy var fullName: String = {
        return super.name // error: 'super' cannot be used outside of class members
    }()
}

Is there a good reason why super isn’t permitted here? Replacing super with self works fine, as I’d expect because the instance must be fully initialized when lazy properties are accessed.

貢獻者指南