NAME

       Declare::Constraints::Simple::Library::Array - Array Constraints

SYNOPSIS

         # accept a list of pairs
         my $pairs_validation = IsArrayRef( HasArraySize(2,2) );

         # integer => object pairs
         my $pairs = And( OnEvenElements(IsInt),
                          OnOddElements(IsObject) );

         # a three element array
         my $tri = And( HasArraySize(3,3),
                        OnArrayElements(0, IsInt,
                                        1, IsDefined,
                                        2, IsClass) );

DESCRIPTION

       This module contains all constraints that can be applied to array references.

CONSTRAINTS

   HasArraySize([$min, [$max]])
       With $min defaulting to 1. So a specification of

         my $profile = HasArraySize;

       checks for at least one value. To force an exact size of the array, specify the same
       values for both:

         my $profile = HasArraySize(3, 3);

   OnArrayElements($key => $constraint, $key => $constraint, ...)
       Applies the the $constraints to the corresponding $keys if they are present. For required
       keys see "HasArraySize".

   OnEvenElements($constraint)
       Runs the constraint on all even elements of an array. See also "OnOddElements".

   OnOddElements($constraint)
       Runs the constraint on all odd elements of an array. See also "OnEvenElements".

SEE ALSO

       Declare::Constraints::Simple, Declare::Constraints::Simple::Library

AUTHOR

       Robert 'phaylon' Sedlacek "<phaylon@dunkelheit.at>"

LICENSE AND COPYRIGHT

       This module is free software, you can redistribute it and/or modify it under the same
       terms as perl itself.

perl v5.32.0                                2021Declare::Constraints::Simple::Library::Array(3pm)