OeditusCredo.Check.Warning.SwallowingException (OeditusCredo v0.5.0)

Basics

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

Explanation

Swallowing exceptions in try/rescue without re-raising or logging hides errors.

Always log exceptions or re-raise them to maintain observability.

Bad:

try do
  risky_operation()
rescue
  _ -> :error
end

Good:

try do
  risky_operation()
rescue
  e ->
    Logger.error("Operation failed", error: inspect(e))
    :error
end

Check-Specific Parameters

Use the following parameters to configure this check:

:exclude_test_files

Set to true to skip test files (default: false)

This parameter defaults to nil.

General Parameters

Like with all checks, general params can be applied.

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