Routex 1.3.2 has been released. It’s main focus was getting rid of warnings in Elixir 1.20 and completing a long standing todo to overhaul the macro branching module.

Bug Fixes:

• core: matchable type warning in Elixir 1.20+ (#123) by @Rubas (tnq!)
• core: unneeded require warnings in Elixir 1.20+

Soft Deprecation:

refactor(core): Routex.Branching overhaul

This change is (only) significant for extension developers. Parameter were
reordered and some option have been renamed (the old names are soft deprecated).
Please migrate your extensions when seeing deprecation messages.

IMPROVED:

• Simplified transformer option format for better ergonomics
• Comprehensive documentation with additional real-world examples
• Clearer naming conventions across the API
• Better type specifications and parameter descriptions
• Extended tests

SOFT DEPRECATIONS:

• Transformer return value :skip is deprecated in favor of :noop for clarity

• New parameters order for improved cognitive flow (old order soft deprecated)

• Options have been renamed for clarity:

  • :as → :name_branched
  • :orig → :name_passthrough
  • :arg_pos → :param_position

MIGRATION GUIDE:

• Rename options (see above):
  Routex.Branching.branch_macro(… , param_position: fn arity → arity - 1 end)

• Replace :skip with :noop in transformer functions:

  def my_transformer(pattern, arg) do
    if should_skip?(pattern), do: :noop, else: arg
  end
  

• Replace MFA transformer options with the new format, the value of extra arguments should
  be put in the transformer functions themselves:

old:
*_transformer: {__MODULE__.Transformers, :transform_arg, [:foo]}

new:
*_transformer: &__MODULE__.Transformers.transform_clause/2

def my_transformer(pattern, arg) do
  arg <> to_string(:foo)
end

And an image for the imagination.

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