Mercurial > pub > Impl
annotate Lib/IMPL/Object/Abstract.pm @ 384:4edd36025051
DOM schema refactoring
author | cin |
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date | Mon, 10 Feb 2014 17:41:34 +0400 |
parents | 82b6c967bcf1 |
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49 | 1 package IMPL::Object::Abstract; |
2 use strict; | |
3 use warnings; | |
4 | |
166 | 5 use parent qw(IMPL::Class::Meta); |
364 | 6 use Carp qw(croak); |
49 | 7 |
8 our $MemoryLeakProtection; | |
9 my $Cleanup = 0; | |
10 | |
11 my %cacheCTOR; | |
12 | |
13 my $t = 0; | |
14 sub cache_ctor { | |
15 my $class = shift; | |
16 | |
17 no strict 'refs'; | |
18 my @sequence; | |
19 | |
20 my $refCTORS = *{"${class}::CTOR"}{HASH}; | |
21 | |
22 foreach my $super ( @{"${class}::ISA"} ) { | |
194 | 23 my $superSequence = $cacheCTOR{$super} || cache_ctor($super); |
24 | |
25 my $mapper = $refCTORS ? $refCTORS->{$super} : undef; | |
26 if (ref $mapper eq 'CODE') { | |
27 if ($mapper == *_pass_through_mapper{CODE}) { | |
28 push @sequence,@$superSequence; | |
29 } else { | |
30 push @sequence, sub { | |
31 my $this = shift; | |
32 $this->$_($mapper->(@_)) foreach @$superSequence; | |
33 } if @$superSequence; | |
34 } | |
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35 } elsif ($mapper and not ref $mapper and $mapper eq '@_') { |
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36 push @sequence,@$superSequence; |
194 | 37 } else { |
38 warn "Unsupported mapper type, in '$class' for the super class '$super'" if $mapper; | |
39 push @sequence, sub { | |
40 my $this = shift; | |
41 $this->$_() foreach @$superSequence; | |
42 } if @$superSequence; | |
43 } | |
49 | 44 } |
45 | |
46 push @sequence, *{"${class}::CTOR"}{CODE} if *{"${class}::CTOR"}{CODE}; | |
47 | |
48 $cacheCTOR{$class} = \@sequence; | |
49 return \@sequence; | |
50 } | |
51 | |
90 | 52 sub dump_ctor { |
194 | 53 my ($self) = @_; |
54 $self = ref $self || $self; | |
55 | |
56 warn "dumping $self .ctor"; | |
57 warn "$_" foreach @{$cacheCTOR{$self}||[]}; | |
90 | 58 } |
59 | |
49 | 60 sub callCTOR { |
61 my $self = shift; | |
62 my $class = ref $self; | |
63 | |
64 $self->$_(@_) foreach @{$cacheCTOR{$class} || cache_ctor($class)}; | |
65 } | |
66 | |
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67 sub _init_dtor { |
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68 my ($class) = @_; |
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69 |
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70 no strict 'refs'; |
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71 |
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72 # avoid warnings for classes without destructors |
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73 no warnings 'once'; |
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74 |
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75 my @dtors; |
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76 |
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77 my @hierarchy = ($class); |
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78 my %visited; |
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79 |
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80 while(my $subclass = shift @hierarchy) { |
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81 if(*{"${subclass}::DTOR"}{CODE}) { |
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82 push @dtors, *{"${subclass}::DTOR"}{CODE}; |
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83 } |
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84 |
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85 push @hierarchy, @{"${subclass}::ISA"}; |
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86 } |
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87 |
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88 if (@dtors) { |
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89 |
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90 return *{"${class}::callDTOR"} = sub { |
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91 my ($self) = @_; |
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92 my $selfClass = ref $self; |
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93 if ($selfClass ne $class) { |
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94 goto &{$selfClass->_init_dtor()}; |
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95 } else { |
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96 map $_->($self), @dtors; |
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97 } |
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98 } |
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99 |
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100 } else { |
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101 return *{"${class}::callDTOR"} = sub { |
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102 my $self = ref $_[0]; |
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103 |
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104 goto &{$self->_init_dtor()} unless $self eq $class; |
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105 } |
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106 } |
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107 } |
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108 |
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109 __PACKAGE__->_init_dtor(); |
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110 |
49 | 111 sub toString { |
112 my $self = shift; | |
113 | |
114 return (ref $self || $self); | |
115 } | |
116 | |
280 | 117 sub _typeof { |
194 | 118 ref $_[0] || $_[0]; |
93 | 119 } |
120 | |
49 | 121 sub isDisposed { |
122 0; | |
123 } | |
124 | |
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125 sub DESTROY { |
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126 shift->callDTOR(); |
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127 } |
49 | 128 |
129 sub END { | |
130 $Cleanup = 1; | |
131 } | |
132 | |
174 | 133 sub _pass_through_mapper { |
49 | 134 @_; |
135 } | |
136 | |
137 sub PassArgs { | |
174 | 138 \&_pass_through_mapper; |
49 | 139 } |
140 | |
141 sub PassThroughArgs { | |
142 my $class = shift; | |
143 $class = ref $class || $class; | |
144 no strict 'refs'; | |
145 no warnings 'once'; | |
174 | 146 ${"${class}::CTOR"}{$_} = \&_pass_through_mapper foreach @{"${class}::ISA"}; |
49 | 147 } |
148 | |
149 package self; | |
150 | |
151 our $AUTOLOAD; | |
152 sub AUTOLOAD { | |
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153 goto &{caller(). substr $AUTOLOAD,4}; |
49 | 154 } |
155 | |
156 package supercall; | |
157 | |
158 our $AUTOLOAD; | |
159 sub AUTOLOAD { | |
160 my $sub; | |
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161 my $methodName = substr $AUTOLOAD,9; |
49 | 162 no strict 'refs'; |
163 $sub = $_->can($methodName) and $sub->(@_) foreach @{caller().'::ISA'}; | |
164 } | |
165 | |
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166 1; |
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167 |
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168 __END__ |
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169 |
49 | 170 =pod |
63
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171 =head1 SYNOPSIS |
49 | 172 |
173 package MyBaseObject; | |
166 | 174 use parent qw(IMPL::Object::Abstract); |
49 | 175 |
176 sub new { | |
177 # own implementation of the new opeator | |
178 } | |
179 | |
180 sub surrogate { | |
181 # own implementation of the surrogate operator | |
182 } | |
183 | |
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184 =head1 DESCRIPTION |
49 | 185 |
180 | 186 Реализация механизма вызова конструкторов и других вспомогательных вещей, кроме операторов |
187 создания экземпляров. | |
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188 |
49 | 189 =cut |