Jon Portnoy > List-Objects-WithUtils > List::Objects::WithUtils::Role::Array::Typed

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NAME ^

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

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 arrays 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:

  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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