[SR-11728] Xcode crashes when trying to autocomplete some Swift methods

[swift-ci]

Previous ID	SR-11728
Radar	None
Original Reporter	Revolt (JIRA User)
Type	Bug
Status	Resolved
Resolution	Won't Do

Attachment: Download

Additional Detail from JIRA

Votes	0
Component/s
Labels	Bug
Assignee	None
Priority	Medium

md5: a150b300dd0618f8f610d142ab1b08fa

Issue Description:

[beccadax]

Thank you for filing this, Revolt (JIRA User). Unfortunately, the top stack frames in your crash log indicate that it's an Xcode issue, not a Swift issue:

3   com.apple.dt.IDEKit             0x00000001021d3499 +[IDEAssertionHandler _handleAssertionWithLogString:assertionSignature:assertionReason:extraBacktrace:] + 1276
4   com.apple.dt.IDEKit             0x00000001021d3a54 -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] + 1249
5   com.apple.dt.DVTFoundation      0x000000010079cb57 _DVTAssertionHandler + 478
6   com.apple.dt.DVTFoundation      0x000000010079cd9e _DVTAssertionFailureHandler + 374
7   com.apple.dt.IDELanguageSupportUI   0x000000012c8d9d15 -[IDESwiftCompletionItem displayText] + 228
8   com.apple.dt.DVTKit             0x0000000100e9f00d -[DVTTextCompletionListWindowController _getTitleColumnWidth:typeColumnWidth:] + 783
9   com.apple.dt.DVTKit             0x0000000100e9e578 -[DVTTextCompletionListWindowController _updateCurrentDisplayState] + 607
10  com.apple.dt.DVTKit             0x0000000100e9d827 -[DVTTextCompletionListWindowController completionListChanged] + 95

Could you please report this bug through Feedback Assistant instead? Xcode isn't part of the Swift open source project; the engineers who would fix this bug simply aren't here.

(If you do file in Feedback Assistant, it would help if you could include the affected source code—ideally the entire project, but even just the one source file you were editing might help—and tell them which file was open and where the cursor was when Xcode crashed. Code submitted through Feedback Assistant is confidential.)

[swift-ci]

Comment by Iulian Onofrei (JIRA)

Sorry, I should have looked more closely. I saw `IDESwiftCompletionStrategy.mm` at the top and thought it's caused by Swift toolkit. I created FB7434635.