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 创建于 2017年2月28日

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 (9 评论) (0 反应) (0 负责人)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.

贡献者指南

技术栈
swift
领域
tooling
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Swift programming languageunderstanding of initializer rules
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
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.