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1 | package Moose::Meta::Method::Accessor::Native::Array::splice; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | use Moose::Role; |
7 | |
8 | with 'Moose::Meta::Method::Accessor::Native::Array::Writer' => { |
9 | -excludes => [ |
10 | qw( |
11 | _minimum_arguments |
12 | _inline_process_arguments |
13 | _inline_check_arguments |
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14 | _inline_optimized_set_new_value |
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15 | _return_value |
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16 | ) |
17 | ] |
18 | }; |
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19 | |
20 | sub _minimum_arguments { 1 } |
21 | |
22 | sub _adds_members { 1 } |
23 | |
24 | sub _inline_process_arguments { |
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25 | return ( |
26 | 'my $idx = shift;', |
27 | 'my $len = @_ ? shift : undef;', |
28 | ); |
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29 | } |
30 | |
31 | sub _inline_check_arguments { |
32 | my $self = shift; |
33 | |
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34 | return ( |
35 | $self->_inline_check_var_is_valid_index('$idx'), |
36 | 'if (defined($len) && $len !~ /^-?\d+$/) {', |
37 | $self->_inline_throw_error( |
38 | '"The length argument passed to splice must be an integer"', |
39 | ) . ';', |
40 | '}', |
41 | ); |
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42 | } |
43 | |
44 | sub _potential_value { |
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45 | my $self = shift; |
46 | my ($slot_access) = @_; |
47 | |
48 | return '(do { ' |
49 | . 'my @potential = @{ (' . $slot_access . ') }; ' |
50 | . '@return = defined $len ' |
51 | . '? (splice @potential, $idx, $len, @_) ' |
52 | . ': (splice @potential, $idx); ' |
53 | . '\@potential;' |
54 | . '})'; |
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55 | } |
56 | |
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57 | sub _inline_optimized_set_new_value { |
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58 | my $self = shift; |
59 | my ($inv, $new, $slot_access) = @_; |
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60 | |
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61 | return ( |
62 | '@return = defined $len', |
63 | '? (splice @{ (' . $slot_access . ') }, $idx, $len, @_)', |
64 | ': (splice @{ (' . $slot_access . ') }, $idx);', |
65 | ); |
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66 | } |
67 | |
68 | sub _return_value { |
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69 | my $self = shift; |
70 | my ($slot_access) = @_; |
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71 | |
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72 | return 'wantarray ? @return : $return[-1]'; |
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73 | } |
74 | |
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75 | no Moose::Role; |
76 | |
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77 | 1; |