annotate Lib/IMPL/Object.pm @ 394:2c14f66efa08

minor changes
author cin
date Tue, 18 Feb 2014 18:17:20 +0400
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1 package IMPL::Object;
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2 use strict;
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3
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4 use parent qw(IMPL::Object::Abstract);
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5 use IMPL::require {
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6 ClassPropertyImplementor => 'IMPL::Code::DirectPropertyImplementor'
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7 };
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8
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9 sub surrogate {
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10 bless {}, ref $_[0] || $_[0];
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11 }
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12
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13 sub new {
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14 my $class = shift;
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15 my $self = bless {}, ref($class) || $class;
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16 $self->callCTOR(@_);
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17
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18 $self;
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19 }
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21 1;
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22
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23 __END__
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24
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25 =pod
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26
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27 =head1 SINOPSYS
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28
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29 =begin code
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30
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31 package Foo;
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32 use parent qw(IMPL::Object);
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33
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34 sub CTOR {
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35 my ($this,$arg) = @_;
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36 print "Foo: $arg\n";
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37 }
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38
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39 package Bar;
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40 use parent qw(IMPL::Object);
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41
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42 sub CTOR {
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43 my ($this,$arg) = @_;
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44 print "Bar: $arg\n";
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45 }
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46
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47 package Baz;
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48 use parent qw(Foo Bar);
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50 our %CTOR = (
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51 Foo => sub { my %args = @_; $args{Mazzi}; },
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52 Bar => sub { my %args = @_; $args{Fugi}; }
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53 );
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54
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55 package Composite;
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56 use parent qw(Baz Foo Bar);
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57
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58 our %CTOR = (
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59 Foo => undef,
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60 Bar => undef
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61 );
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62
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63 sub CTOR {
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64 my ($this,%args) = @_;
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65
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66 print "Composite: $args{Text}\n";
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67 }
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68
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69 package main;
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70
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71 my $obj = new Composite(
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72 Text => 'Hello World!',
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73 Mazzi => 'Mazzi',
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74 Fugi => 'Fugi'
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75 );
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76
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77 # will print
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78 #
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79 # Foo: Mazzi
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80 # Bar: Fugi
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81 # Bar:
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82 # Composite: Hello World!
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83
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84 =end code
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85
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86 =head1 Description
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87
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88 Базовый класс для объектов, основанных на хеше.
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89
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90 =head1 Members
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91
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92 =over
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93
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94 =item operator C<new>(@args)
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95
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96 Создает экземпляр объекта и вызывает конструктор с параметрами @args.
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97
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98 =item operator C<surrogate>()
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99
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100 Создает неинициализированный экземпляр объекта.
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101
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102 =back
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103
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104 =head1 Cavearts
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105
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106 Нужно заметить, что директива C<use parent> работает не совсем прозрачно, если в нашем примере
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107 класс C<Composite> наследуется от C<Baz>, а затем C<Foo>, то наследование от
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108 C<Foo> не произойдет поскольку он уже имеется в C<Baz>. Вот не задача:)
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109
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110 =cut