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x/tools/gopls: Definitions bug "internal error: no position for %v" on error.Error method #64086

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adonovan opened this issue Nov 12, 2023 · 1 comment
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x/tools/gopls: Definitions bug "internal error: no position for %v" on error.Error method #64086

adonovan opened this issue Nov 12, 2023 · 1 comment
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FrozenDueToAge gopls/telemetry-wins gopls Issues related to the Go language server, gopls. Tools This label describes issues relating to any tools in the x/tools repository.
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gopls/v0.15.0

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adonovan commented Nov 12, 2023 •
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Another stack kkvfqw reported by telemetry:

golang.org/x/tools/gopls/internal/bug report:35
golang.org/x/tools/gopls/internal/bug Errorf:2
golang.org/x/tools/gopls/internal/lsp/source Definition:86
golang.org/x/tools/gopls/internal/lsp (*Server).definition:19
golang.org/x/tools/gopls/internal/lsp (*Server).Definition:1
golang.org/x/tools/gopls/internal/lsp/protocol serverDispatch:192
golang.org/x/tools/gopls/internal/lsp/lsprpc (*StreamServer).ServeStream.ServerHandler
golang.org/x/tools/gopls/internal/lsp/lsprpc (*StreamServer).ServeStream.handshaker
golang.org/x/tools/gopls/internal/lsp/protocol Handlers.MustReplyHandler
golang.org/x/tools/gopls/internal/lsp/protocol Handlers.AsyncHandler
runtime goexit:0
- golang.org/x/tools/gopls@v0.14.1 go1.21.3 linux/amd64 (1)
- golang.org/x/tools/gopls@v0.14.1 go1.21.0 linux/amd64 (1)

This is L108 of Defintion.go:

			return nil, bug.Errorf("internal error: no position for %v", obj.Name())

I can reproduce the crash by doing a definitions query on var err error; err.Error(). Will we ever learn?

(The if obj.Parent() == types.Universe { check doesn't work as intended for methods, as their parent is nil.)
@gopherbot gopherbot added the gopls Issues related to the Go language server, gopls. label Nov 12, 2023
@seankhliao seankhliao changed the title gopls: crash in 'definitions' on error.Error method x/tools/gopls: crash in 'definitions' on error.Error method Nov 12, 2023
@gopherbot gopherbot added the Tools This label describes issues relating to any tools in the x/tools repository. label Nov 12, 2023
@gopherbot gopherbot added this to the Unreleased milestone Nov 12, 2023
@findleyr findleyr modified the milestones: Unreleased, gopls/v0.15.0 Nov 13, 2023
@adonovan adonovan self-assigned this Nov 16, 2023
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Change https://go.dev/cl/543136 mentions this issue: gopls/internal/lsp/source: fix panic in definition(error.Error)

@adonovan adonovan mentioned this issue Nov 17, 2023
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@adonovan adonovan changed the title x/tools/gopls: crash in 'definitions' on error.Error method x/tools/gopls: Definitions bug "internal error: no position for %v" on error.Error method Dec 7, 2023
@adonovan adonovan mentioned this issue Dec 7, 2023
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