gopls: automated issue report (crash)

[red1374]

gopls version: v0.16.0/go1.22.4
gopls flags:
update flags: proxy
extension version: 0.41.4
environment: Visual Studio Code win32
initialization error: undefined
issue timestamp: Sun, 30 Jun 2024 13:32:19 GMT
restart history:
Sun, 30 Jun 2024 12:57:39 GMT: activation (enabled: true)

ATTENTION: PLEASE PROVIDE THE DETAILS REQUESTED BELOW.

Describe what you observed.

panic: runtime error: slice bounds out of range [8:7]

goroutine 122 [running]:
golang.org/x/tools/gopls/internal/golang/completion.Selection.Suffix(...)
	  completion.go:367
golang.org/x/tools/gopls/internal/server.toProtocolCompletionItems({0xc00041c588, 0x3, 0x0%3F}, 0xc000239cc0, 0xc000436508)
	  completion.go:114  0x9f0
golang.org/x/tools/gopls/internal/server.(*server).Completion(0xc000120600, {0x1daf008, 0xc000376c30}, 0xc0003be4b0)
	  completion.go:76  0x68e
golang.org/x/tools/gopls/internal/protocol.serverDispatch({0x1daf040, 0xc000310690}, {0x1dca7f0, 0xc000120600}, 0xc0003766f0, {0x1daf200, 0xc00030eec0})
	  tsserver.go:361  0x2587
golang.org/x/tools/gopls/internal/lsprpc.(*streamServer).ServeStream.ServerHandler.func3({0x1daf040, 0xc000310690}, 0xc0003766f0, {0x1daf200, 0xc00030eec0})
	  protocol.go:160  0x85
golang.org/x/tools/gopls/internal/lsprpc.(*streamServer).ServeStream.handshaker.func4({0x1daf040, 0xc000310690}, 0xc0003766f0, {0x1daf200, 0xc00030eec0})
	  lsprpc.go:509  0x923
golang.org/x/tools/gopls/internal/protocol.Handlers.MustReplyHandler.func1({0x1daf040, 0xc000310690}, 0xc000247a28, {0x1daf200, 0xc00030eec0})
	  handler.go:35  0xc6
golang.org/x/tools/gopls/internal/protocol.Handlers.AsyncHandler.func2.2()
	  handler.go:103  0x96
created by golang.org/x/tools/gopls/internal/protocol.Handlers.AsyncHandler.func2 in goroutine 113
	  handler.go:100  0x1c5

gopls stats -anon

{ "DirStats": { "Files": 23766, "TestdataFiles": 0, "GoFiles": 0, "ModFiles": 0, "Dirs": 4149 }, "GOARCH": "amd64", "GOOS": "windows", "GOPACKAGESDRIVER": "", "GOPLSCACHE": "", "GoVersion": "go1.22.4", "GoplsVersion": "v0.16.0", "InitialWorkspaceLoadDuration": "373.9995ms", "MemStats": { "HeapAlloc": 1738480, "HeapInUse": 3817472, "TotalAlloc": 15910192 }, "WorkspaceStats": { "Files": { "Total": 0, "Largest": 0, "Errs": 0 }, "Views": [ { "GoCommandVersion": "go1.22.4", "AllPackages": { "Packages": 0, "LargestPackage": 0, "CompiledGoFiles": 0, "Modules": 0 }, "WorkspacePackages": { "Packages": 0, "LargestPackage": 0, "CompiledGoFiles": 0, "Modules": 0 }, "Diagnostics": 0 } ] } }

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[hyangah]

Thanks for the report @red1374
Duplicate of golang/go#68169 - happens when completion is triggered on the package line.

Gopls v0.16.1 includes the fix and will be released this week.