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Manual Reference Pages  -  LIST::OBJECTS::WITHUTILS::ROLE::ARRAY::TYPED (3)

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NAME

List::Objects::WithUtils::Role::Array::Typed - Type-checking array behavior

CONTENTS

SYNOPSIS



  # Via List::Objects::WithUtils::Array::Typed ->
  use List::Objects::WithUtils array_of;
  use Types::Standard -all;
  use List::Objects::Types -all;

  # Array of Ints:
  my $arr = array_of Int() => (1,2,3);

  # Array of array objects of Ints (coerced from ARRAYs):
  my $arr = array_of TypedArray[Int] => [1,2,3], [4,5,6];



DESCRIPTION

This role makes use of Type::Tie to add type-checking behavior to List::Objects::WithUtils::Role::Array consumers.

The first argument passed to the constructor should be a Type::Tiny type (or other object conforming to Type::API, as of v2.25):



  use Types::Standard -all;
  my $arr = array_of Str() => qw/foo bar baz/;



Elements are checked against the specified type when the object is constructed or new elements are added.

If the initial type-check fails, a coercion is attempted.

Values that cannot be coerced will throw an exception.

Also see Types::Standard, List::Objects::Types

    type

Returns the Type::Tiny type the object was created with.

    untyped

Returns a (shallow) clone that is a plain List::Objects::WithUtils::Array.

Since most methods that return a new list will (attempt to) return a list object of the same type as their parent, this can be useful to avoid type check failures in a method chain that creates intermediate lists.

AUTHOR

Jon Portnoy <avenj@cobaltirc.org> with significant contributions from Toby Inkster (CPAN: TOBYINK)
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perl v5.20.3 LIST::OBJECTS::WITHUTILS::ROLE::ARRAY::TYPED (3) 2016-01-25

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