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Data-Object-2.02
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/ Data::Object::Boolean

NAME

Data::Object::Boolean

ABSTRACT

Boolean Class for Perl 5

SYNOPSIS

package main;

use Data::Object::Boolean;

my $bool = Data::Object::Boolean->new; # false

DESCRIPTION

This package provides functions and representation for boolean values.

INHERITS

This package inherits behaviors from:

Data::Object::Kind

LIBRARIES

This package uses type constraints from:

Data::Object::Types

FUNCTIONS

This package implements the following functions:

false

False() : Object

The False method returns a boolean object representing false.

False example #1
Data::Object::Boolean::False(); # false

isfalse

IsFalse(Maybe[Any] $arg) : Object

The IsFalse method returns a boolean object representing false if no arugments are passed, otherwise this function will return a boolean object based on the argument provided.

IsFalse example #1
Data::Object::Boolean::IsFalse(); # true
IsFalse example #2
Data::Object::Boolean::IsFalse(0); # true
IsFalse example #3
Data::Object::Boolean::IsFalse(1); # false

istrue

IsTrue() : Object

The IsTrue method returns a boolean object representing truth if no arugments are passed, otherwise this function will return a boolean object based on the argument provided.

IsTrue example #1
Data::Object::Boolean::IsTrue(); # false
IsTrue example #2
Data::Object::Boolean::IsTrue(1); # true
IsTrue example #3
Data::Object::Boolean::IsTrue(0); # false

to_json

TO_JSON(Any $arg) : Ref['SCALAR']

The TO_JSON method returns a scalar ref representing truthiness or falsiness based on the arguments passed, this function is commonly used by JSON encoders and instructs them on how they should represent the value.

TO_JSON example #1
my $bool = Data::Object::Boolean->new(1);

$bool->TO_JSON; # \1
TO_JSON example #2
Data::Object::Boolean::TO_JSON(
  Data::Object::Boolean::True()
);

# \1
TO_JSON example #3
my $bool = Data::Object::Boolean->new(0);

$bool->TO_JSON(0); # \0
TO_JSON example #4
Data::Object::Boolean::TO_JSON(
  Data::Object::Boolean::False()
);

# \0

true

True() : Object

The True method returns a boolean object representing truth.

True example #1
Data::Object::Boolean::True(); # true

type

Type() : Str

The Type method returns either "True" or "False" based on the truthiness or falsiness of the argument provided.

Type example #1
Data::Object::Boolean::Type(); # False
Type example #2
Data::Object::Boolean::Type(1); # True
Type example #3
Data::Object::Boolean::Type(0); # False
Type example #4
Data::Object::Boolean::Type(
  Data::Object::Boolean::True()
);

# True
Type example #5
Data::Object::Boolean::Type(
  Data::Object::Boolean::False()
);

# False

METHODS

This package implements the following methods:

new

new(Maybe[Any] $arg) : Object

The new method returns a boolean object based on the value of the argument provided.

new example #1
my $bool = Data::Object::Boolean->new(1); # true
new example #2
my $bool = Data::Object::Boolean->new(0); # false
new example #3
my $bool = Data::Object::Boolean->new(''); # false
new example #4
my $bool = Data::Object::Boolean->new(undef); # false

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".

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