@spec contains_alias?(Macro.t()) :: boolean()

Returns whether ast contains an alias statement anywhere.

@spec create_files(Igniter.t(), [{String.t(), String.t()}]) :: Igniter.t()

Creates each generated file that is missing and leaves identical files untouched.

@spec parse_argv([String.t()], Igniter.Mix.Task.Info.t(), (keyword() -> any())) ::
  Igniter.Mix.Task.Args.t()

Parses generator flags against a task's Igniter.Mix.Task.Info schema.

Applies the task's option defaults, hands the result to validate!, and raises on positional arguments or unknown options.

@spec preserve_generated_paths([{String.t(), String.t()}], Igniter.t()) :: Igniter.t()

Keeps generated paths where the generator wrote them when Igniter moves files.

@spec source_content(Igniter.t(), String.t()) :: String.t() | nil

Returns the current content Igniter holds for path, or nil when it holds none.

@spec validate_module_options!(
  keyword(),
  [atom()]
) :: :ok

Raises unless every listed option holds an Elixir module name.