swiftlang/swift

[SR-4102] 'self' used before all stored properties are initialized when trying to pass in the type to method

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#46,685 建立於 2017年2月28日

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 (9 留言) (0 反應) (0 負責人)Swift (69,989 star) (10,719 fork)batch import
bugcompilerdiagnostics qualitygood first issue

描述
Previous ID SR-4102
Radar None
Original Reporter nelsonaa (JIRA User)
Type Bug
Status Reopened
Resolution

Xcode Version 8.2.1 (8C1002)
OSX 10.12.3 (16D32)
Swift 3
Votes 0
Component/s Compiler
Labels Bug, DiagnosticsQoI, StarterBug
Assignee None
Priority Medium

md5: 492b655bbeac25797294a982ff63d7bf

Issue Description:

Get the error

'self' used before all stored properties are initialized

when trying to pass in the type into a method.

貢獻者指南

技術棧
swift
領域
tooling
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Swift programming languageunderstanding of initializer rules
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
60
研究方向
Investigate the Swift compiler code in lib/Sema related to initialization error checking. The issue is that passing a type to a method during initialization incorrectly triggers 'self used before all stored properties are initialized'. Look for the diagnostic logic and consider how type parameters should be excluded from the 'self' use check.