View Source Credo.Check.Readability.PreferImplicitTry (Credo v1.7.10)

Basics

This check is enabled by default.

Learn how to disable it via .credo.exs.

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

Explanation

Prefer using an implicit try rather than explicit try if you try to rescue anything the function does.

For example, this:

def failing_function(first) do
  try do
    to_string(first)
  rescue
    _ -> :rescued
  end
end

Can be rewritten without try as below:

def failing_function(first) do
  to_string(first)
rescue
  _ -> :rescued
end

This emphazises that you really want to try/rescue anything the function does, which might be important for other contributors so they can reason about adding code to the function.

Like all Readability issues, this one is not a technical concern. But you can improve the odds of others reading and liking your code by making it easier to follow.

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.