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#!perl
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# ########################################################################## #
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# Title: Type specification
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# Creation date: 2007-03-05
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# Author: Michael Zedeler
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# Description: Class holding type specifications for data streams
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# File: $Source: /data/cvs/lib/DSlib/lib/DS/TypeSpec.pm,v $
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# Repository: kronhjorten
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# State: $State: Exp $
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# Documentation: inline
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# Recepient: -
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# ########################################################################## #
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package DS::TypeSpec;
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17
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12
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12
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169927
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use base qw{ Clone };
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12
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30
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12
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10529
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18
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19
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12
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12
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56965
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use strict;
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12
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26
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12
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328
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20
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12
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12
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63
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use Carp;
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12
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26
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12
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1021
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21
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12
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12
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7764
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use Carp::Assert;
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12
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10902
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12
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80
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22
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12
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12
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14392
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use List::MoreUtils qw{ any all };
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12
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17014
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12
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1091
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23
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12
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12
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7246
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use DS::TypeSpec::Field;
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12
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29
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12
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15408
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24
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25
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our ($VERSION) = $DS::VERSION;
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26
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our ($REVISION) = '$Revision: 1.2 $' =~ /(\d+\.\d+)/;
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27
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28
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29
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sub new {
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30
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29
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29
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0
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68
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my( $class, $arg1, $arg2 ) = @_;
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31
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32
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29
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49
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my $name;
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33
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my $fields;
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34
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29
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100
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106
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if( $arg1 ) {
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35
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23
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50
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77
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if( ref( $arg1 ) eq '' ) {
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36
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23
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35
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$name = $arg1;
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37
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23
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100
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77
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if( $arg2 ) {
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38
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19
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35
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$fields = $arg2;
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39
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}
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40
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} else {
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41
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0
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0
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$fields = $arg1;
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42
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}
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43
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23
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100
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89
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if( $fields ) {
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44
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19
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118
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should(ref($fields) , 'ARRAY');
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45
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}
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46
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}
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47
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48
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29
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100
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276
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my $self = bless {
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49
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name => $name || '',
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50
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fields => {}
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51
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}, $class;
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52
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53
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29
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100
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99
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if( $fields ) {
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54
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19
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67
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$self->add_fields( $fields );
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55
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}
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56
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57
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29
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351
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return $self;
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58
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}
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59
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60
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sub add_fields {
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61
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19
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19
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0
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38
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my( $self, $fields ) = @_;
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62
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63
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19
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39
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foreach my $field (@$fields) {
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64
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50
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133
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$self->add_field( $field );
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65
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}
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66
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}
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67
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68
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sub add_field {
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69
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57
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57
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0
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81
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my( $self, $field ) = @_;
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70
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71
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57
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50
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205
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if( ref( $field ) eq '' ) {
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72
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0
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0
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$field = new DS::TypeSpec::Field( $field );
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73
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}
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74
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57
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415
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assert($field->isa('DS::TypeSpec::Field'));
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75
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57
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50
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510
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if( $self->{fields}->{ $field->{name} } ) {
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76
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0
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0
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croak("Can't add field to data stream type spec, since another field with the same name already exists");
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77
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} else {
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78
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57
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224
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$self->{fields}->{ $field->{name} } = $field;
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79
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}
|
80
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}
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81
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82
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sub remove_fields {
|
83
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0
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0
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0
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0
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my( $self, $fields ) = @_;
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84
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85
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0
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0
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foreach my $field (@$fields) {
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86
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0
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0
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$self->remove_field( $field );
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87
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}
|
88
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}
|
89
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90
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sub remove_field {
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91
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0
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0
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0
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0
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my( $self, $field ) = @_;
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92
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93
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0
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0
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my $field_name;
|
94
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0
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0
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0
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if( not ref($field) eq '' ) {
|
95
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0
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0
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should($field->isa, 'DS::TypeSpec::Field');
|
96
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0
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0
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$field_name = $field->{name};
|
97
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} else {
|
98
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0
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0
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$field_name = $field;
|
99
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}
|
100
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0
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0
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0
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if( not $self->{fields}->{ $field->{name} } ) {
|
101
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0
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0
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croak("Can't remove field from data stream type spec - name not recognized. The name is $field_name, but I only have " . join(", ", keys %{$self->{fields}}));
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0
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0
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102
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} else {
|
103
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0
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0
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delete $self->{fields}->{ $field->{name} };
|
104
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}
|
105
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|
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}
|
106
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|
107
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sub fields {
|
108
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0
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|
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0
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0
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0
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my( $self, $fields ) = @_;
|
109
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|
110
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0
|
|
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0
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my $result = 1;
|
111
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0
|
0
|
|
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0
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if( $fields ) {
|
112
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0
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|
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|
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0
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should(ref($fields), 'ARRAY');
|
113
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0
|
|
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|
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0
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my %remove_fields = ( %{$self->{fields}} );
|
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0
|
|
|
|
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0
|
|
114
|
0
|
|
|
|
|
0
|
foreach my $field ( @$fields ) {
|
115
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0
|
0
|
|
|
|
0
|
if( $self->{fields}->{$field} ) {
|
116
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0
|
|
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|
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0
|
$self->add_field( $field );
|
117
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0
|
|
|
|
|
0
|
delete $remove_fields{ $field };
|
118
|
|
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}
|
119
|
|
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}
|
120
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0
|
|
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|
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0
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$self->{fields} = $fields;
|
121
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|
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} else {
|
122
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0
|
|
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|
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0
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$result = $self->{fields};
|
123
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|
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|
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}
|
124
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0
|
|
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|
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0
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return $result;
|
125
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|
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}
|
126
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|
127
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sub field_names {
|
128
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0
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0
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0
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0
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my( $self, $fields ) = @_;
|
129
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0
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|
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|
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0
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return keys %{$self->{fields}};
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0
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0
|
|
130
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}
|
131
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132
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sub keys_locked {
|
133
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0
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|
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0
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0
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0
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my( $self, $keys_locked ) = @_;
|
134
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|
135
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0
|
|
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|
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0
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my $result = 1;
|
136
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0
|
0
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|
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|
0
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if( $keys_locked ) {
|
137
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0
|
0
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|
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0
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$self->{keys_locked} = $keys_locked ? 1 : 0;
|
138
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} else {
|
139
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0
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0
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$keys_locked = $self->{keys_locked};
|
140
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}
|
141
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0
|
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0
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return $result;
|
142
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}
|
143
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|
144
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sub values_readonly {
|
145
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0
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0
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0
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0
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my( $self, $values_readonly ) = @_;
|
146
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|
147
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0
|
|
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0
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my $result = 1;
|
148
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0
|
0
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|
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0
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if( $values_readonly ) {
|
149
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0
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0
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|
0
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$self->{values_readonly} = $values_readonly ? 1 : 0;
|
150
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|
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} else {
|
151
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0
|
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0
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$values_readonly = $self->{values_readonly};
|
152
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}
|
153
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0
|
|
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0
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return $result;
|
154
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}
|
155
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156
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sub contains {
|
157
|
23
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|
23
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0
|
57
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my( $self, $other ) = @_;
|
158
|
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|
159
|
23
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|
32
|
my $result;
|
160
|
|
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|
|
161
|
23
|
100
|
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|
137
|
if( $other->isa('DS::TypeSpec::Any') ) {
|
162
|
2
|
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|
12
|
$result = 1;
|
163
|
|
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} else {
|
164
|
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# This is equivalent to the subset operator in mathematics
|
165
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|
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# For all of the $other fields
|
166
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|
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|
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$result = all {
|
167
|
49
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|
|
49
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|
114
|
my $other = $_;
|
168
|
|
|
|
|
|
|
# There must be one key with the same name
|
169
|
49
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|
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|
141
|
any { $_ eq $other } keys %{$self->{fields}};
|
|
98
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|
154
|
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49
|
|
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|
|
206
|
|
170
|
21
|
|
|
|
|
97
|
} keys %{$other->{fields}};
|
|
21
|
|
|
|
|
152
|
|
171
|
|
|
|
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|
|
}
|
172
|
|
|
|
|
|
|
|
173
|
23
|
|
|
|
|
151
|
return $result;
|
174
|
|
|
|
|
|
|
}
|
175
|
|
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|
|
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|
|
176
|
|
|
|
|
|
|
sub project {
|
177
|
4
|
|
|
4
|
0
|
3526
|
my( $self, $arg1, $arg2 ) = @_;
|
178
|
|
|
|
|
|
|
|
179
|
4
|
|
|
|
|
6
|
my $name = '';
|
180
|
4
|
|
|
|
|
4
|
my $new_fields;
|
181
|
4
|
50
|
|
|
|
9
|
if( $arg1 ) {
|
182
|
4
|
50
|
|
|
|
11
|
if( ref( $arg1 ) eq '' ) {
|
183
|
4
|
|
|
|
|
5
|
$name = $arg1;
|
184
|
4
|
50
|
|
|
|
6
|
if( $arg2 ) {
|
185
|
4
|
|
|
|
|
7
|
$new_fields = $arg2;
|
186
|
|
|
|
|
|
|
}
|
187
|
|
|
|
|
|
|
} else {
|
188
|
0
|
|
|
|
|
0
|
$new_fields = $arg1;
|
189
|
|
|
|
|
|
|
}
|
190
|
|
|
|
|
|
|
}
|
191
|
|
|
|
|
|
|
|
192
|
|
|
|
|
|
|
# if( ref( $fields ) eq 'ARRAY' ) {
|
193
|
|
|
|
|
|
|
# my $new_fields = {};
|
194
|
|
|
|
|
|
|
# foreach my $field ( @$fields ) {
|
195
|
|
|
|
|
|
|
# $new_fields->{$field} = 1;
|
196
|
|
|
|
|
|
|
# }
|
197
|
|
|
|
|
|
|
# $fields = $new_fields;
|
198
|
|
|
|
|
|
|
# }
|
199
|
4
|
|
|
|
|
13
|
should(ref($new_fields), 'HASH');
|
200
|
|
|
|
|
|
|
|
201
|
4
|
|
|
|
|
19
|
my $new_spec = new DS::TypeSpec( $name );
|
202
|
|
|
|
|
|
|
|
203
|
4
|
|
|
|
|
11
|
foreach my $new_field (keys %$new_fields) {
|
204
|
9
|
100
|
|
|
|
27
|
if( my $field = $self->{fields}->{ $new_fields->{$new_field} } ) {
|
205
|
7
|
|
|
|
|
54
|
my $new_field_obj = $field->clone();
|
206
|
7
|
|
|
|
|
13
|
$new_field_obj->{name} = $new_field;
|
207
|
7
|
|
|
|
|
13
|
$new_spec->add_field( $new_field_obj );
|
208
|
|
|
|
|
|
|
} else {
|
209
|
2
|
|
|
|
|
379
|
croak("Can't limit to field $new_field since it is not in the original type");
|
210
|
|
|
|
|
|
|
}
|
211
|
|
|
|
|
|
|
}
|
212
|
2
|
|
|
|
|
5
|
return $new_spec;
|
213
|
|
|
|
|
|
|
}
|
214
|
|
|
|
|
|
|
|
215
|
|
|
|
|
|
|
1;
|
216
|
|
|
|
|
|
|
|
217
|
|
|
|
|
|
|
#TODO Add sorting and unique constraints. Possibly also field order (or maybe not?!?)
|