NAME

Data::Object::Vars

ABSTRACT

Env Vars Class for Perl 5

SYNOPSIS

package main;

use Data::Object::Vars;

local %ENV = (USER => 'ubuntu', HOME => '/home/ubuntu');

my $vars = Data::Object::Vars->new(
  named => { iam => 'USER', root => 'HOME' }
);

# $vars->root; # $ENV{HOME}
# $vars->home; # $ENV{HOME}
# $vars->get('home'); # $ENV{HOME}
# $vars->get('HOME'); # $ENV{HOME}

# $vars->iam; # $ENV{USER}
# $vars->user; # $ENV{USER}
# $vars->get('user'); # $ENV{USER}
# $vars->get('USER'); # $ENV{USER}

DESCRIPTION

This package provides methods for accessing %ENV items.

INTEGRATES

This package integrates behaviors from:

Data::Object::Role::Buildable

Data::Object::Role::Proxyable

Data::Object::Role::Stashable

LIBRARIES

This package uses type constraints from:

Types::Standard

ATTRIBUTES

This package has the following attributes:

named

named(HashRef)

This attribute is read-only, accepts (HashRef) values, and is optional.

METHODS

This package implements the following methods:

exists

exists(Str $key) : Any

The exists method takes a name or index and returns truthy if an associated value exists.

exists example #1

# given: synopsis

$vars->exists('iam'); # truthy

exists example #2

# given: synopsis

$vars->exists('USER'); # truthy

exists example #3

# given: synopsis

$vars->exists('PATH'); # falsy

exists example #4

# given: synopsis

$vars->exists('user'); # truthy

get

get(Str $key) : Any

The get method takes a name or index and returns the associated value.

get example #1

# given: synopsis

$vars->get('iam'); # ubuntu

get example #2

# given: synopsis

$vars->get('USER'); # ubuntu

get example #3

# given: synopsis

$vars->get('PATH'); # undef

get example #4

# given: synopsis

$vars->get('user'); # ubuntu

name

name(Str $key) : Any

The name method takes a name or index and returns index if the the associated value exists.

name example #1

# given: synopsis

$vars->name('iam'); # USER

name example #2

# given: synopsis

$vars->name('USER'); # USER

name example #3

# given: synopsis

$vars->name('PATH'); # undef

name example #4

# given: synopsis

$vars->name('user'); # USER

set

set(Str $key, Maybe[Any] $value) : Any

The set method takes a name or index and sets the value provided if the associated argument exists.

set example #1

# given: synopsis

$vars->set('iam', 'root'); # root

set example #2

# given: synopsis

$vars->set('USER', 'root'); # root

set example #3

# given: synopsis

$vars->set('PATH', '/tmp'); # undef

# is not set

set example #4

# given: synopsis

$vars->set('user', 'root'); # root

stashed

stashed() : HashRef

The stashed method returns the stashed data associated with the object.

stashed example #1

# given: synopsis

$vars->stashed

AUTHOR

Al Newkirk, awncorp@cpan.org

LICENSE

Copyright (C) 2011-2019, Al Newkirk, et al.

This is free software; you can redistribute it and/or modify it under the terms of the The Apache License, Version 2.0, as elucidated in the "license file".

PROJECT

Wiki

Project

Initiatives

Milestones

Contributing

Issues

cpanm Data::Object::Vars

perl -MCPAN -e shell
install Data::Object::Vars