Re^2: Length of Array Passed as Reference

[tobyink]

Or:

use feature 'state';
use Types::Standard -types;
use Type::Params 'compile';

sub test_function {
  state $signature = compile( ArrayRef[Str] );
  my ( $ref ) = &$signature;
  
  # function body goes here
}

The signature will check that the function was passed the correct number of arguments, the correct types, etc, and die if it wasn't.

[eyepopslikeamosquito]

Nice. It seems to me your API embraces "Declarative trumps Imperative" (one of Conway's seven API design tips, mentioned at On Interfaces and APIs).