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#!/usr/bin/perl |
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15893
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use strict; |
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1228
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use warnings; |
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1476
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# The special-ist tag in the world. |
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package WWW::Shopify::Liquid::Tag::For; |
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use base 'WWW::Shopify::Liquid::Tag::Enclosing'; |
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95
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37
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10939
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0
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sub min_arguments { return 1; } |
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sub max_arguments { return 1; } |
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sub verify { |
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my ($self) = @_; |
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die new WWW::Shopify::Liquid::Exception::Parser::Arguments($self, "Requires in operator to be part of loop.") unless |
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94
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522
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$self->{arguments}->[0]->isa('WWW::Shopify::Liquid::Operator::In'); |
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die new WWW::Shopify::Liquid::Exception::Parser::Arguments($self, "Requires the opening variable of a loop to be a simple variable.") unless |
18
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$self->{arguments}->[0]->{operands}->[0] && $self->{arguments}->[0]->{operands}->[0]->isa('WWW::Shopify::Liquid::Token::Variable') && |
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50
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838
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int(@{$self->{arguments}->[0]->{operands}->[0]->{core}}) == 1 && $self->{arguments}->[0]->{operands}->[0]->{core}->[0]->isa('WWW::Shopify::Liquid::Token::String'); |
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93
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33
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992
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33
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20
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} |
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0
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sub inner_tags { return qw(else) } |
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use List::Util qw(min); |
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105
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37
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2802
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use Scalar::Util qw(looks_like_number blessed reftype); |
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113
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37
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2374
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25
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11102
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use Clone qw(clone); |
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85721
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58198
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28
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sub new { |
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94
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94
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0
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291
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my $package = shift; |
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706
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my $self = bless { |
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line => shift, |
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core => shift, |
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arguments => shift, |
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contents => undef, |
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false_path => undef |
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}, $package; |
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94
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239
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$self->interpret_inner_tokens(@{$_[0]}); |
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501
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39
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94
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284
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return $self; |
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} |
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42
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sub interpret_inner_tokens { |
43
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94
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94
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0
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305
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my ($self, @tokens) = @_; |
44
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# Comes in [for_path], [tag, other_path]... |
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94
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220
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my $token = shift(@tokens); |
46
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50
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324
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return undef unless $token; |
47
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94
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338
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$self->{contents} = $token->[0]; |
48
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94
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100
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397
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if (int(@tokens) > 0) { |
49
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3
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50
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33
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22
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die new WWW::Shopify::Liquid::Exception::Parser($self, "else cannot be anywhere, except the end tag of the for statement.") if int(@tokens) > 1 || $tokens[0]->[0]->tag ne "else"; |
50
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3
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8
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$self->{false_path} = $tokens[0]->[1]; |
51
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} |
52
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} |
53
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54
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sub render_loop { |
55
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47
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47
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0
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282
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my ($self, $renderer, $hash, $op1, $op2, $start, $end, @array) = @_; |
56
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57
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47
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116
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my @texts = (); |
58
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47
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98
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my $all_processed = 1; |
59
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47
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146
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my $var = $op1->{core}->[0]->{core}; |
60
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47
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98
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my $content; |
61
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62
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47
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100
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100
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150
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if ($renderer->state && exists $renderer->state->{values}->{$self . "-1"}) { |
63
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3
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13
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$start = $renderer->state->{values}->{$self . "-1"}->{index}; |
64
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3
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8
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@texts = @{$renderer->state->{values}->{$self . "-1"}->{texts}}; |
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3
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12
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65
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3
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12
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delete $renderer->state->{values}->{$self . "-1"}; |
66
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67
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} |
68
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47
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171
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for ($start..$end) { |
69
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435
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1242
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$hash->{$var} = $array[$_]; |
70
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$hash->{forloop} = { |
71
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435
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3821
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index => ($_+1), index0 => $_, first => $_ == 0, last => $_ == $#array, |
72
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length => int(@array), rindex0 => (($#array - $_) + 1), rindex => (($#array - $_)), |
73
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}; |
74
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435
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1120
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eval { |
75
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435
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1774
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$content = $self->{contents}->render($renderer, $hash); |
76
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}; |
77
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435
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100
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1391
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if (my $exp = $@) { |
78
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7
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50
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33
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65
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if (defined $exp && blessed($exp) && $exp->isa('WWW::Shopify::Liquid::Exception::Control')) { |
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33
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79
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7
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100
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28
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if ($exp->isa('WWW::Shopify::Liquid::Exception::Control::Pause')) { |
80
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3
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27
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$exp->register_value($self . "-1", { |
81
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index => $_, |
82
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texts => \@texts |
83
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}); |
84
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3
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34
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die $exp; |
85
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} else { |
86
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4
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100
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66
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22
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push(@texts, @{$exp->initial_render}) if $exp->initial_render && int(@{$exp->initial_render}) > 0; |
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2
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7
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2
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6
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87
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4
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100
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18
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if ($exp->isa('WWW::Shopify::Liquid::Exception::Control::Break')) { |
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50
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88
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2
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4
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last; |
89
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} elsif ($exp->isa('WWW::Shopify::Liquid::Exception::Control::Continue')) { |
90
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2
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9
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next; |
91
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} |
92
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} |
93
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} else { |
94
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0
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0
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die $exp; |
95
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} |
96
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} |
97
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428
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50
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1283
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$all_processed = 0 if !$self->is_processed($content); |
98
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428
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1402
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push(@texts, $content); |
99
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} |
100
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101
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44
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50
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169
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return join('', grep { defined $_ } @texts) if $all_processed; |
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430
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1343
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102
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0
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0
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return $self; |
103
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} |
104
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105
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sub expand_concatenations { |
106
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71
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71
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0
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149
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my ($self, $result) = @_; |
107
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71
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100
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100
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430
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return blessed($result) && $result->isa('WWW::Shopify::Liquid::Operator::Concatenate') ? (map { $self->expand_concatenations($_) } @{$result->{operands}}) : ($result); |
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22
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54
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10
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26
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108
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} |
109
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110
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sub optimize_loop { |
111
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7
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7
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0
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42
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my ($self, $optimizer, $hash, $op1, $op2, $start, $end, @array) = @_; |
112
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113
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114
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# First step, we replace everything by a big concatenate. |
115
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7
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19
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my @texts = (); |
116
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117
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7
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25
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my $var = $op1->{core}->[0]->{core}; |
118
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7
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50
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28
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return '' if $start > $end; |
119
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120
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my @parts = map { |
121
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7
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24
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$hash->{$var} = $array[$_]; |
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49
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118
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122
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$hash->{forloop} = { |
123
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49
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328
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index => ($_+1), index0 => $_, first => $_ == 0, last => $_ == $#array, |
124
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length => int(@array), rindex0 => (($#array - $_) + 1), rindex => (($#array - $_)), |
125
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}; |
126
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49
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105
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my $result; |
127
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49
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80
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eval { |
128
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49
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50
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151
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$result = $self->is_processed($self->{contents}) ? $self->{contents} : clone($self->{contents})->optimize($optimizer, $hash); |
129
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}; |
130
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49
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50
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190
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if (my $exp = $@) { |
131
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0
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0
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0
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0
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if (defined $exp && blessed($exp) && $exp->isa('WWW::Shopify::Liquid::Exception::Control')) { |
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0
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132
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0
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0
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0
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0
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push(@texts, @{$exp->initial_render}) if $exp->initial_render && int(@{$exp->initial_render}) > 0; |
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0
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0
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0
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0
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133
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0
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0
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0
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if ($exp->isa('WWW::Shopify::Liquid::Exception::Control::Break')) { |
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0
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134
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0
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0
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last; |
135
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} elsif ($exp->isa('WWW::Shopify::Liquid::Exception::Control::Continue')) { |
136
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0
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0
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next; |
137
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} |
138
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} else { |
139
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0
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0
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die $exp; |
140
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} |
141
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} |
142
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143
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49
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140
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$self->expand_concatenations($result); |
144
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} ($start..$end); |
145
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146
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7
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50
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31
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return $parts[0] if int(@parts) == 1; |
147
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7
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41
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return WWW::Shopify::Liquid::Operator::Concatenate->new($self->{line}, "", @parts); |
148
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} |
149
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150
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# Called to expand the second operand in "in" argument list. |
151
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sub apply { |
152
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66
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66
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0
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189
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my ($self, $hash, $operand) = @_; |
153
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66
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100
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217
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return [keys(%$operand)] if ref($operand) eq 'HASH'; |
154
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65
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166
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return $operand; |
155
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} |
156
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157
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# Should eventually support loop unrolling. |
158
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sub process { |
159
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67
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67
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0
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233
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my ($self, $hash, $action, $pipeline) = @_; |
160
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67
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134
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my @args = @{$self->{arguments}}; |
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67
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212
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161
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162
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163
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67
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184
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my ($op1, $op2) = @{$args[0]->{operands}}; |
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67
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213
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164
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67
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50
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297
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$op2 = $op2->$action($pipeline, $hash) if !$self->is_processed($op2); |
165
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166
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66
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100
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100
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237
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$self->{arguments}->[0]->{operands}->[1] = $op2 if $self->is_processed($op2) && $action eq 'optimize'; |
167
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66
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100
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66
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298
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if ($action eq "optimize" && !$self->is_processed($self->{contents})) { |
168
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|
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# Ensure that the loop variable is unset for at least the duration of the loop while we do an initial optimization. |
169
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13
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48
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my $var = $op1->{core}->[0]->{core}; |
170
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13
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37
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delete $hash->{$var}; |
171
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|
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# And, in fact, make sure that ALL variables that get set in the loop get unset here. |
172
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13
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102
|
for (grep { ref($_) eq 'WWW::Shopify::Liquid::Tag::Assign' } $self->{contents}->tokens) { |
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115
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242
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173
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1
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|
|
|
|
23
|
next if int(@{$_->{arguments}->[0]->{operands}->[0]->{core}}) == 1 && |
174
|
|
|
|
|
|
|
blessed($_->{arguments}->[0]->{operands}->[0]->{core}->[0]->{core}) && |
175
|
1
|
50
|
33
|
|
|
2
|
$_->{arguments}->[0]->{operands}->[0]->{core}->[0]->{core}->isa('WWW::Shopify::Liquid::Token::String'); |
|
|
|
33
|
|
|
|
|
176
|
1
|
|
|
|
|
5
|
delete $hash->{$_->{arguments}->[0]->{operands}->[0]->{core}->[0]->{core}}; |
177
|
|
|
|
|
|
|
} |
178
|
13
|
|
|
|
|
72
|
$pipeline->push_conditional_state; |
179
|
13
|
|
|
|
|
64
|
$self->{contents} = $self->{contents}->optimize($pipeline, $hash); |
180
|
13
|
|
|
|
|
58
|
$pipeline->pop_conditional_state; |
181
|
|
|
|
|
|
|
} |
182
|
66
|
|
|
|
|
284
|
$op2 = $self->apply($hash, $op2); |
183
|
66
|
100
|
66
|
|
|
202
|
return $self if (!$self->is_processed($op2) && $action eq "optimize"); |
184
|
61
|
50
|
33
|
|
|
208
|
return '' if (!$self->is_processed($op2) && $action eq "render"); |
185
|
61
|
100
|
100
|
|
|
386
|
return (defined $self->{false_path} ? $self->{false_path}->$action($pipeline, $hash) : '') if ref($op2) ne "ARRAY" || int(@$op2) == 0; |
|
|
100
|
|
|
|
|
|
186
|
54
|
50
|
|
|
|
195
|
die new WWW::Shopify::Liquid::Exception::Renderer::Arguments($self, "Requires an array in for loop.") unless ref($op2) eq "ARRAY"; |
187
|
|
|
|
|
|
|
|
188
|
54
|
|
|
|
|
187
|
my @array = @$op2; |
189
|
54
|
|
|
|
|
129
|
my $limit = int(@array); |
190
|
54
|
|
|
|
|
130
|
my $offset = 0; |
191
|
|
|
|
|
|
|
|
192
|
|
|
|
|
|
|
|
193
|
54
|
100
|
|
|
|
126
|
my ($limit_arg) = grep { $_->isa('WWW::Shopify::Liquid::Token::Variable::Named') && $_->{name} eq "limit" } @args; |
|
56
|
|
|
|
|
378
|
|
194
|
54
|
100
|
|
|
|
173
|
my $limit_result = $limit_arg->$action($pipeline, $hash) if $limit_arg; |
195
|
54
|
50
|
|
|
|
178
|
return $self if !$self->is_processed($limit_result); |
196
|
54
|
50
|
66
|
|
|
208
|
$limit = $limit_result->{limit} if $limit_result && ref($limit_result) && ref($limit_result) eq 'HASH' && looks_like_number($limit_result->{limit}); |
|
|
|
66
|
|
|
|
|
|
|
|
33
|
|
|
|
|
197
|
|
|
|
|
|
|
|
198
|
|
|
|
|
|
|
|
199
|
54
|
100
|
|
|
|
124
|
my ($offset_arg) = grep { $_->isa('WWW::Shopify::Liquid::Token::Variable::Named') && $_->{name} eq "offset" } @args; |
|
56
|
|
|
|
|
304
|
|
200
|
54
|
100
|
|
|
|
211
|
my $offset_result = $offset_arg->$action($pipeline, $hash) if $offset_arg; |
201
|
54
|
50
|
66
|
|
|
183
|
$offset = $offset_result->{offset} if $offset_result && ref($offset_result) && ref($offset_result) eq 'HASH' && looks_like_number($offset_result->{offset}); |
|
|
|
66
|
|
|
|
|
|
|
|
33
|
|
|
|
|
202
|
|
|
|
|
|
|
|
203
|
54
|
|
|
|
|
158
|
my $dispatch = $action . "_loop"; |
204
|
|
|
|
|
|
|
|
205
|
54
|
|
|
|
|
517
|
return $self->$dispatch($pipeline, $hash, $op1, $op2, $offset, min($#array, $limit+$offset-1), @array); |
206
|
|
|
|
|
|
|
} |
207
|
|
|
|
|
|
|
|
208
|
|
|
|
|
|
|
|
209
|
|
|
|
|
|
|
|
210
|
|
|
|
|
|
|
1; |