Commit | Line | Data |
e7724627 |
1 | package Moose::Meta::Method::Accessor::Native::String::substr; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
88e88a7b |
6 | use Moose::Util (); |
7 | |
e7724627 |
8 | our $AUTHORITY = 'cpan:STEVAN'; |
9 | |
8b9641b8 |
10 | use Moose::Role; |
11 | |
12 | with 'Moose::Meta::Method::Accessor::Native::Reader' => { |
13 | -excludes => [ |
14 | qw( _generate_method |
15 | _minimum_arguments |
16 | _maximum_arguments |
17 | _inline_process_arguments |
18 | _inline_check_arguments |
19 | _return_value |
20 | ) |
21 | ] |
22 | }, |
23 | 'Moose::Meta::Method::Accessor::Native::Writer' => { |
24 | -excludes => [ |
25 | qw( |
26 | _generate_method |
27 | _minimum_arguments |
28 | _maximum_arguments |
29 | _inline_process_arguments |
30 | _inline_check_arguments |
a486d5ad |
31 | _inline_optimized_set_new_value |
8b9641b8 |
32 | _return_value |
33 | ) |
34 | ] |
35 | }; |
e7724627 |
36 | |
37 | sub _generate_method { |
38 | my $self = shift; |
39 | |
53a4677c |
40 | my $inv = '$self'; |
1e2c801e |
41 | my $slot_access = $self->_get_value($inv); |
e7724627 |
42 | |
53a4677c |
43 | return ( |
44 | 'sub {', |
53a4677c |
45 | 'my ' . $inv . ' = shift;', |
46 | $self->_inline_curried_arguments, |
47 | 'if (@_ == 1 || @_ == 2) {', |
1e2c801e |
48 | $self->_inline_reader_core($inv, $slot_access), |
53a4677c |
49 | '}', |
50 | 'elsif (@_ == 3) {', |
1e2c801e |
51 | $self->_inline_writer_core($inv, $slot_access), |
53a4677c |
52 | '}', |
53 | 'else {', |
54 | $self->_inline_check_argument_count, |
55 | '}', |
56 | '}', |
57 | ); |
e7724627 |
58 | } |
59 | |
1e2c801e |
60 | sub _minimum_arguments { 1 } |
61 | sub _maximum_arguments { 3 } |
e7724627 |
62 | |
63 | sub _inline_process_arguments { |
53a4677c |
64 | my $self = shift; |
65 | my ($inv, $slot_access) = @_; |
e7724627 |
66 | |
53a4677c |
67 | return ( |
68 | 'my $offset = shift;', |
69 | 'my $length = @_ ? shift : length ' . $slot_access . ';', |
70 | 'my $replacement = shift;', |
71 | ); |
e7724627 |
72 | } |
73 | |
74 | sub _inline_check_arguments { |
53a4677c |
75 | my $self = shift; |
76 | my ($for_writer) = @_; |
77 | |
78 | my @code = ( |
79 | 'if ($offset !~ /^-?\d+$/) {', |
80 | $self->_inline_throw_error( |
81 | '"The first argument passed to substr must be an integer"' |
82 | ) . ';', |
83 | '}', |
84 | 'if ($length !~ /^-?\d+$/) {', |
85 | $self->_inline_throw_error( |
86 | '"The second argument passed to substr must be an integer"' |
87 | ) . ';', |
88 | '}', |
89 | ); |
e7724627 |
90 | |
91 | if ($for_writer) { |
53a4677c |
92 | push @code, ( |
93 | 'if (!Moose::Util::_STRINGLIKE0($replacement)) {', |
94 | $self->_inline_throw_error( |
95 | '"The third argument passed to substr must be a string"' |
96 | ) . ';', |
97 | '}', |
98 | ); |
e7724627 |
99 | } |
100 | |
53a4677c |
101 | return @code; |
e7724627 |
102 | } |
103 | |
104 | sub _potential_value { |
53a4677c |
105 | my $self = shift; |
106 | my ($slot_access) = @_; |
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107 | |
53a4677c |
108 | return '(do { ' |
109 | . 'my $potential = ' . $slot_access . '; ' |
110 | . '@return = substr $potential, $offset, $length, $replacement; ' |
111 | . '$potential; ' |
112 | . '})'; |
e7724627 |
113 | } |
114 | |
a486d5ad |
115 | sub _inline_optimized_set_new_value { |
53a4677c |
116 | my $self = shift; |
117 | my ($inv, $new, $slot_access) = @_; |
e7724627 |
118 | |
53a4677c |
119 | return '@return = substr ' . $slot_access . ', ' |
a486d5ad |
120 | . '$offset, $length, $replacement;'; |
e7724627 |
121 | } |
122 | |
123 | sub _return_value { |
53a4677c |
124 | my $self = shift; |
125 | my ($slot_access, $for_writer) = @_; |
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126 | |
7f5ec80d |
127 | return '$return[0]' if $for_writer; |
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128 | |
53a4677c |
129 | return 'substr ' . $slot_access . ', $offset, $length'; |
e7724627 |
130 | } |
131 | |
8b9641b8 |
132 | no Moose::Role; |
133 | |
e7724627 |
134 | 1; |