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[SR-13892] Improve diagnostics involving "covariant 'Self'" #56289

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typesanitizer opened this issue Nov 24, 2020 · 1 comment
Open

[SR-13892] Improve diagnostics involving "covariant 'Self'" #56289

typesanitizer opened this issue Nov 24, 2020 · 1 comment
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compiler The Swift compiler in itself diagnostics QoI Bug: Diagnostics Quality of Implementation improvement type checker Area → compiler: Semantic analysis

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@typesanitizer
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Previous ID SR-13892
Radar rdar://problem/71694596
Original Reporter @typesanitizer
Type Improvement
Additional Detail from JIRA
Votes 1
Component/s Compiler
Labels Improvement, DiagnosticsQoI, TypeChecker
Assignee None
Priority Medium

md5: 8c7922d3a5fa72593814951d5e61330a

Issue Description:

Confusion in forum post: https://forums.swift.org/t/why-error-covariant-self-type-cannot-be-referenced-from-a-stored-property-initializer/42235 involving the diagnostic

"covariant 'Self' type cannot be referenced from a stored property initializer"

It is not necessarily obvious to a developer what this means. We should do some combination of rewording the diagnostic, add an extra note explaining the issue, and maybe add a fix-it replacing 'Self' with the name of the class.
@typesanitizer
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@swift-ci create

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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compiler The Swift compiler in itself diagnostics QoI Bug: Diagnostics Quality of Implementation improvement type checker Area → compiler: Semantic analysis
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