annotate lib/IMPL/Object/Abstract.pm @ 418:3f38dabaf5cc ref20150831

sync
author cin
date Mon, 28 Dec 2015 15:11:35 +0300
parents ee36115f6a34
children
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1 package IMPL::Object::Abstract;
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2 use strict;
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3 use warnings;
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4
411
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5 BEGIN {
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6 require IMPL::Class::Meta;
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7 }
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8 use parent qw(IMPL::Class::Meta);
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9 use Carp qw(croak);
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10
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11 our $MemoryLeakProtection;
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12 my $Cleanup = 0;
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13
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14 my %cacheCTOR;
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15
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16 __PACKAGE__->static_accessor_own(_typeInfo => undef);
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17
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18 my $t = 0;
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19 sub cache_ctor {
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20 my $class = shift;
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21
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22 no strict 'refs';
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23 my @sequence;
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24
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25 my $refCTORS = *{"${class}::CTOR"}{HASH};
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26
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27 foreach my $super ( @{"${class}::ISA"} ) {
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28 my $superSequence = $cacheCTOR{$super} || cache_ctor($super);
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29
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30 my $mapper = $refCTORS ? $refCTORS->{$super} : undef;
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31 if (ref $mapper eq 'CODE') {
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32 if ($mapper == *_pass_through_mapper{CODE}) {
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33 push @sequence,@$superSequence;
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34 } else {
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35 push @sequence, sub {
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36 my $this = shift;
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37 $this->$_($mapper->(@_)) foreach @$superSequence;
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38 } if @$superSequence;
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39 }
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40 } elsif ($mapper and not ref $mapper and $mapper eq '@_') {
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41 push @sequence,@$superSequence;
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42 } else {
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43 warn "Unsupported mapper type, in '$class' for the super class '$super'" if $mapper;
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44 push @sequence, sub {
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45 my $this = shift;
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46 $this->$_() foreach @$superSequence;
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47 } if @$superSequence;
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48 }
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49 }
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50
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51 push @sequence, *{"${class}::CTOR"}{CODE} if *{"${class}::CTOR"}{CODE};
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52
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53 $cacheCTOR{$class} = \@sequence;
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54 return \@sequence;
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55 }
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56
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57 sub dump_ctor {
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58 my ($self) = @_;
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59 $self = ref $self || $self;
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60
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61 warn "dumping $self .ctor";
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62 warn "$_" foreach @{$cacheCTOR{$self}||[]};
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63 }
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64
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65 sub callCTOR {
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66 my $self = shift;
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67 my $class = ref $self;
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68
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69 $self->$_(@_) foreach @{$cacheCTOR{$class} || cache_ctor($class)};
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70 }
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71
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72 sub _init_dtor {
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73 my ($class) = @_;
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74
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75 no strict 'refs';
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76
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77 # avoid warnings for classes without destructors
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78 no warnings 'once';
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79
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80 my @dtors;
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81
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82 my @hierarchy = ($class);
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83 my %visited;
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84
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85 while(my $subclass = shift @hierarchy) {
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86 if(*{"${subclass}::DTOR"}{CODE}) {
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87 push @dtors, *{"${subclass}::DTOR"}{CODE};
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88 }
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89
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90 push @hierarchy, @{"${subclass}::ISA"};
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91 }
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92
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93 if (@dtors) {
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94
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95 return *{"${class}::callDTOR"} = sub {
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96 my ($self) = @_;
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97 my $selfClass = ref $self;
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98 if ($selfClass ne $class) {
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99 goto &{$selfClass->_init_dtor()};
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100 } else {
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101 map $_->($self), @dtors;
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102 }
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103 }
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104
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105 } else {
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106 return *{"${class}::callDTOR"} = sub {
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107 my $self = ref $_[0];
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108
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109 goto &{$self->_init_dtor()} unless $self eq $class;
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110 }
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111 }
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112 }
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113
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114 __PACKAGE__->_init_dtor();
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115
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116 sub toString {
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117 my $self = shift;
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118
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119 return (ref $self || $self);
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120 }
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121
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122 sub GetTypeInfo {
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123 my $self = shift;
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124 my $info = $self->_typeInfo;
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125 unless($info) {
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126 $info = TypeInfo->new(type => ref($self) ? $self->_typeof : $self);
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127 $self->_typeInfo($info);
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128 }
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129 return $info;
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130 }
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131
407
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132 sub _typeof {
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133 ref $_[0] || $_[0];
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134 }
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135
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136 sub isDisposed {
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137 0;
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138 }
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139
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140 sub DESTROY {
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141 shift->callDTOR();
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142 }
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143
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144 sub END {
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145 $Cleanup = 1;
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146 }
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147
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148 sub _pass_through_mapper {
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149 @_;
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150 }
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151
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152 sub PassArgs {
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153 \&_pass_through_mapper;
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154 }
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155
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156 sub PassThroughArgs {
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157 my $class = shift;
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158 $class = ref $class || $class;
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159 no strict 'refs';
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160 no warnings 'once';
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161 ${"${class}::CTOR"}{$_} = \&_pass_through_mapper foreach @{"${class}::ISA"};
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162 }
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163
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164 package self;
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165
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166 our $AUTOLOAD;
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167 sub AUTOLOAD {
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168 goto &{caller(). substr $AUTOLOAD,4};
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169 }
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170
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171 package supercall;
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172
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173 our $AUTOLOAD;
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174 sub AUTOLOAD {
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175 my $sub;
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176 my $methodName = substr $AUTOLOAD,9;
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177 no strict 'refs';
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178 $sub = $_->can($methodName) and $sub->(@_) foreach @{caller().'::ISA'};
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179 }
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180
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181 1;
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182
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183 __END__
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184
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185 =pod
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186 =head1 SYNOPSIS
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187
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188 package MyBaseObject;
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189 use parent qw(IMPL::Object::Abstract);
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190
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191 sub new {
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192 # own implementation of the new opeator
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193 }
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194
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195 sub surrogate {
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196 # own implementation of the surrogate operator
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197 }
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198
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199 =head1 DESCRIPTION
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200
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201 Реализация механизма вызова конструкторов и других вспомогательных вещей, кроме операторов
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202 создания экземпляров.
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203
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204 =cut