Credo

Credo

Credo v1.4.0 Credo.Check.Warning.UnusedKeywordOperation View Source

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

Explanation

The result of a call to the Keyword module's functions has to be used.

While this is correct ...

def clean_and_verify_options!(keywords) do
  keywords = Keyword.delete(keywords, :debug)

  if Enum.length(keywords) == 0, do: raise "OMG!!!1"

  keywords
end

... we forgot to save the result in this example:

def clean_and_verify_options!(keywords) do
  Keyword.delete(keywords, :debug)

  if Enum.length(keywords) == 0, do: raise "OMG!!!1"

  keywords
end

Keyword operations never work on the variable you pass in, but return a new variable which has to be used somehow.

Configuration parameters

There are no parameters for this check.

Link to this section Summary

Functions

run(source_file, params \\ [])

Link to this section Functions

Link to this function

run(source_file, params \\ [])

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