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package Venus::Role::Tryable; |
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use 5.018; |
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use strict; |
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use warnings; |
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use Venus::Role 'with'; |
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# METHODS |
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sub try { |
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my ($self, $callback, @args) = @_; |
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require Venus::Try; |
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my $try = Venus::Try->new(invocant => $self, arguments => [@args]); |
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return $try if !$callback; |
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return $try->call($callback); |
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} |
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# EXPORTS |
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sub EXPORT { |
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['try'] |
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} |
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1; |
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=head1 NAME |
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Venus::Role::Tryable - Tryable Role |
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=cut |
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=head1 ABSTRACT |
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Tryable Role for Perl 5 |
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=cut |
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=head1 SYNOPSIS |
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package Example; |
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use Venus::Class 'with'; |
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use Venus 'raise'; |
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with 'Venus::Role::Tryable'; |
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sub test { |
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raise 'Example::Error'; |
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} |
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package main; |
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my $example = Example->new; |
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# $example->try('test'); |
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=cut |
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=head1 DESCRIPTION |
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This package modifies the consuming package and provides a mechanism for |
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handling potentially volatile routines. |
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=cut |
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=head1 METHODS |
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This package provides the following methods: |
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=cut |
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=head2 try |
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try(Str | CodeRef $method, Any @args) (Try) |
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The try method returns a L object having the invocant, callback, |
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arguments pre-configured. This method supports dispatching, i.e. providing a |
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method name and arguments whose return value will be acted on by this method. |
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I> |
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90
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=over 4 |
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=item try example 1 |
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package main; |
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96
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my $example = Example->new; |
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98
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my $try = $example->try('test'); |
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100
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# my $value = $try->result; |
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102
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=back |
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104
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=cut |
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106
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=head1 AUTHORS |
107
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108
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Awncorp, C |
109
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110
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=cut |
111
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112
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=head1 LICENSE |
113
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114
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Copyright (C) 2000, Al Newkirk. |
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116
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This program is free software, you can redistribute it and/or modify it under |
117
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the terms of the Apache license version 2.0. |
118
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119
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=cut |