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Validate Flow :stages values #131

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Merged
josevalim merged 2 commits into from
Sep 25, 2026
Merged

Validate Flow :stages values #131

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0a5527f
Validate Flow stages option
dajiaohuang Sep 25, 2026
8e13d32
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josevalim Sep 25, 2026
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6 changes: 5 additions & 1 deletion lib/flow.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -1538,9 +1538,13 @@ defmodule Flow do

defp stages(options) do
case Keyword.fetch(options, :stages) do
{:ok, _} ->
{:ok, stages} when is_integer(stages) and stages > 0 ->
options

{:ok, stages} ->
raise ArgumentError,
":stages must be a positive integer, got: #{inspect(stages)}"

:error ->
stages = System.schedulers_online()
[stages: stages] ++ options
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