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Manual Reference Pages  -  LIST::OBJECTS::WITHUTILS::ROLE::HASH::IMMUTABLE (3)

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NAME

List::Objects::WithUtils::Role::Hash::Immutable - Immutable hash behavior

CONTENTS

SYNOPSIS



  # Via List::Objects::WithUtils::Hash::Immutable ->
  use List::Objects::WithUtils immhash;
  my $hash = immhash( foo => 1, bar => 2 );
  $hash->set(foo => 3);  # dies



DESCRIPTION

This role adds immutable behavior to List::Objects::WithUtils::Role::Hash consumers.

The following methods are not available and will throw an exception:



  clear
  set
  maybe_set
  delete



(The backing hash is also marked read-only.)

See List::Objects::WithUtils::Hash::Immutable for a consumer implementation.

AUTHOR

Jon Portnoy <avenj@cobaltirc.org>
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perl v5.20.3 LIST::OBJECTS::WITHUTILS::ROLE::HASH::IMMUTABLE (3) 2016-01-25

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