Credo
Credo v1.6.4

View Source Credo.Check.Refactor.RedundantWithClauseResult (Credo v1.6.4)

This check has a base priority of high and works with any version of Elixir.

Explanation

with statements are useful when you need to chain a sequence of pattern matches, stopping at the first one that fails.

If the match of the last clause in a with statement is identical to the expression in the in its body, the code should be refactored to remove the redundant expression.

This should be refactored:

with {:ok, map} <- check(input),
     {:ok, result} <- something(map) do
  {:ok, result}
end

to look like this:

with {:ok, map} <- check(input) do
  something(map)
end

Check-Specific Parameters

There are no specific parameters for this check.

General Parameters

Like with all checks, general params can be applied.

Parameters can be configured via the .credo.exs config file.