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promql: guard against nil function call in eval

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Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>
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Julien Pivotto 2026-05-19 11:35:44 +02:00
parent 3e6f1cad54
commit fbf32e349d
1 changed files with 5 additions and 0 deletions
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5
promql/engine.go
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@ -2063,6 +2063,11 @@ func (ev *evaluator) eval(ctx context.Context, expr parser.Expr) (parser.Value,
return ev.evalInfo(ctx, e.Args)
}
// Functions with nil entries in FunctionCalls should have been handled before reaching this point.
if call == nil {
panic(fmt.Errorf("unexpected nil implementation for function %q", e.Func.Name))
}
// Emit a warning when sort is used for range queries.
if (e.Func.Name == "sort" || e.Func.Name == "sort_desc" || e.Func.Name == "sort_by_label" || e.Func.Name == "sort_by_label_desc") && ev.startTimestamp != ev.endTimestamp {
warnings.Add(annotations.NewSortInRangeQueryWarning(e.PositionRange()))