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[SR-13873] Swift segfaults instead of yielding type eror #56271

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swift-ci opened this issue Nov 18, 2020 · 2 comments
Closed

[SR-13873] Swift segfaults instead of yielding type eror #56271

swift-ci opened this issue Nov 18, 2020 · 2 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself

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@swift-ci
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Previous ID SR-13873
Radar None
Original Reporter Stiivi (JIRA User)
Type Bug
Status Resolved
Resolution Done

Attachment: Download

Environment

Apple Swift version 5.3.1 (swiftlang-1200.0.41 clang-1200.0.32.8)

Target: x86_64-apple-darwin20.1.0

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug
Assignee None
Priority Medium

md5: 0d7339ab6cc1a90a4e92433fdd62cf0a

Issue Description:

The following errorneous code is offending:

var text: String = ""
var currentChar: Character?
// ...
text += currentChar!

Expected: It should yield a type error for the incompatible += operator argument currentChar.
@typesanitizer
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Looks like this has been fixed on the main branch, can you verify with a recent toolchain snapshot from https://swift.org/download/#snapshots?

@swift-ci
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Comment by Stefan Urbanek (JIRA)

Thanks, seems to work as expected:

bork.swift:4:6: error: binary operator '+=' cannot be applied to operands of type 'String' and 'Character'
text += currentChar!
~~~~ ^ ~~~~~~~~~~~~
bork.swift:4:6: note: overloads for '+=' exist with these partially matching parameter lists: (inout String, String)
text += currentChar!
{{ ^}}

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
This issue was closed.
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself
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@typesanitizer @swift-ci