x/tools/gopls: ast.StructType has type other than types.StructType (no type?) #69150
Description
This stack iWGuoA was reported by telemetry:
xtools/gopls/internal/golang/hover.go:
if v, ok := obj.(*types.Var); ok && v.IsField() {
// Find enclosing struct type.
var tStruct *types.Struct
for _, n := range path {
if n, ok := n.(*ast.StructType); ok {
tStruct = pkg.TypesInfo().TypeOf(n).(*types.Struct) // type assertion failed
break
}
}I think this must mean TypeOf returned nil (some other type for ast.StructType seems unlikely). If so, the underlying bug is in the type checker.
crash/crash
runtime.gopanic:+69
runtime.panicdottypeE:=275
runtime.panicdottypeI:+5
golang.org/x/tools/gopls/internal/golang.computeSizeOffsetInfo:+40
golang.org/x/tools/gopls/internal/golang.hover:+186
golang.org/x/tools/gopls/internal/golang.Hover:+4
golang.org/x/tools/gopls/internal/server.(*server).Hover:+30
golang.org/x/tools/gopls/internal/protocol.serverDispatch:+335
golang.org/x/tools/gopls/internal/lsprpc.(*streamServer).ServeStream.ServerHandler.func3:+5
golang.org/x/tools/gopls/internal/lsprpc.(*streamServer).ServeStream.handshaker.func4:+52
golang.org/x/tools/gopls/internal/protocol.Handlers.MustReplyHandler.func1:+2
golang.org/x/tools/gopls/internal/protocol.Handlers.AsyncHandler.func2.2:+3
runtime.goexit:+0
golang.org/x/tools/[email protected] go1.23.0 darwin/arm64 vscode (1)
Issue created by golang.org/x/tools/gopls/internal/telemetry/cmd/stacks.