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#!/usr/bin/perl -c |
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package Exception::Assertion; |
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=head1 NAME |
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Exception::Assertion - Thrown when assertion failed |
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=head1 SYNOPSIS |
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use Exception::Assertion; |
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sub assert_foo { |
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my $self = eval { $_[0]->isa(__PACKAGE__) } ? shift : __PACKAGE__; |
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my ($condition, $message) = @_; |
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Exception::Assertion->throw( |
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message => $message, |
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reason => 'foo failed', |
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) unless $condition; |
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} |
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assert_foo( 0, 'assert_foo failed' ); |
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=head1 DESCRIPTION |
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This class extends standard L and is thrown when assertion is |
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failed. It contains additional attribute C which represents detailed |
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message about reason of failed assertion. The exception has also raised |
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verbosity. |
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=cut |
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use 5.006; |
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use strict; |
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use warnings; |
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our $VERSION = '0.0504'; |
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=head1 INHERITANCE |
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=over 2 |
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=item * |
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extends L |
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=back |
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=cut |
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# Extend Exception::Base class |
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BEGIN { |
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=head1 CONSTANTS |
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=over |
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=item ATTRS : HashRef |
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Declaration of class attributes as reference to hash. |
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See L for details. |
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=back |
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=head1 ATTRIBUTES |
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This class provides new attributes. See L for other |
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descriptions. |
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=over |
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=cut |
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my %ATTRS = (); |
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my @ATTRS_RW = (); |
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=item reason : Str |
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Contains the additional message filled by assertion method. |
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=cut |
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push @ATTRS_RW, 'reason'; |
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=item message : Str = "Unknown assertion failed" |
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Contains the message of the exception. This class overrides the default value |
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from L class. |
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=cut |
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$ATTRS{message} = 'Unknown assertion failed'; |
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=item verbosity : Int = 3 |
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The default verbosity for assertion exception is raised to 3. This class |
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overrides the default value from L class. |
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106
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=cut |
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108
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$ATTRS{verbosity} = 3; |
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=item string_attributes : ArrayRef[Str] = ["message", "reason"] |
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Meta-attribute contains the format of string representation of exception |
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object. This class overrides the default value from L |
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class. |
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=back |
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=cut |
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$ATTRS{string_attributes} = [ 'message', 'reason' ]; |
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124
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use Exception::Base 0.21; |
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Exception::Base->import( |
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'Exception::Assertion' => { |
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has => { rw => \@ATTRS_RW }, |
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%ATTRS, |
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}, |
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); |
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}; |
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1; |
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=begin umlwiki |
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= Class Diagram = |
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[ <> |
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Exception::Assertion |
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---------------------------------------------------------- |
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+message : Str = "Unknown assertion failed" |
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+verbosity : Int = 3 |
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+reason : Str {rw} |
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#string_attributes : ArrayRef[Str] = ["message", "reason"] |
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----------------------------------------------------------] |
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[Exception::Assertion] ---|> [Exception::Base] |
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=end umlwiki |
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=head1 SEE ALSO |
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156
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L, L. |
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158
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=head1 AUTHOR |
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160
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Piotr Roszatycki |
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=head1 COPYRIGHT |
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Copyright (C) 2008, 2009 by Piotr Roszatycki . |
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This program is free software; you can redistribute it and/or modify it |
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under the same terms as Perl itself. |
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168
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See L |