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 | |
8b9641b8 |
8 | use Moose::Role; |
9 | |
00bbc132 |
10 | with 'Moose::Meta::Method::Accessor::Native::Reader', |
11 | 'Moose::Meta::Method::Accessor::Native::Writer'; |
e7724627 |
12 | |
13 | sub _generate_method { |
14 | my $self = shift; |
15 | |
53a4677c |
16 | my $inv = '$self'; |
1e2c801e |
17 | my $slot_access = $self->_get_value($inv); |
e7724627 |
18 | |
53a4677c |
19 | return ( |
20 | 'sub {', |
53a4677c |
21 | 'my ' . $inv . ' = shift;', |
22 | $self->_inline_curried_arguments, |
23 | 'if (@_ == 1 || @_ == 2) {', |
1e2c801e |
24 | $self->_inline_reader_core($inv, $slot_access), |
53a4677c |
25 | '}', |
26 | 'elsif (@_ == 3) {', |
1e2c801e |
27 | $self->_inline_writer_core($inv, $slot_access), |
53a4677c |
28 | '}', |
29 | 'else {', |
30 | $self->_inline_check_argument_count, |
31 | '}', |
32 | '}', |
33 | ); |
e7724627 |
34 | } |
35 | |
1e2c801e |
36 | sub _minimum_arguments { 1 } |
37 | sub _maximum_arguments { 3 } |
e7724627 |
38 | |
39 | sub _inline_process_arguments { |
53a4677c |
40 | my $self = shift; |
41 | my ($inv, $slot_access) = @_; |
e7724627 |
42 | |
53a4677c |
43 | return ( |
44 | 'my $offset = shift;', |
45 | 'my $length = @_ ? shift : length ' . $slot_access . ';', |
46 | 'my $replacement = shift;', |
47 | ); |
e7724627 |
48 | } |
49 | |
50 | sub _inline_check_arguments { |
53a4677c |
51 | my $self = shift; |
52 | my ($for_writer) = @_; |
53 | |
54 | my @code = ( |
55 | 'if ($offset !~ /^-?\d+$/) {', |
56 | $self->_inline_throw_error( |
57 | '"The first argument passed to substr must be an integer"' |
58 | ) . ';', |
59 | '}', |
60 | 'if ($length !~ /^-?\d+$/) {', |
61 | $self->_inline_throw_error( |
62 | '"The second argument passed to substr must be an integer"' |
63 | ) . ';', |
64 | '}', |
65 | ); |
e7724627 |
66 | |
67 | if ($for_writer) { |
53a4677c |
68 | push @code, ( |
69 | 'if (!Moose::Util::_STRINGLIKE0($replacement)) {', |
70 | $self->_inline_throw_error( |
71 | '"The third argument passed to substr must be a string"' |
72 | ) . ';', |
73 | '}', |
74 | ); |
e7724627 |
75 | } |
76 | |
53a4677c |
77 | return @code; |
e7724627 |
78 | } |
79 | |
80 | sub _potential_value { |
53a4677c |
81 | my $self = shift; |
82 | my ($slot_access) = @_; |
e7724627 |
83 | |
53a4677c |
84 | return '(do { ' |
85 | . 'my $potential = ' . $slot_access . '; ' |
86 | . '@return = substr $potential, $offset, $length, $replacement; ' |
87 | . '$potential; ' |
88 | . '})'; |
e7724627 |
89 | } |
90 | |
a486d5ad |
91 | sub _inline_optimized_set_new_value { |
53a4677c |
92 | my $self = shift; |
93 | my ($inv, $new, $slot_access) = @_; |
e7724627 |
94 | |
53a4677c |
95 | return '@return = substr ' . $slot_access . ', ' |
a486d5ad |
96 | . '$offset, $length, $replacement;'; |
e7724627 |
97 | } |
98 | |
99 | sub _return_value { |
53a4677c |
100 | my $self = shift; |
101 | my ($slot_access, $for_writer) = @_; |
e7724627 |
102 | |
7f5ec80d |
103 | return '$return[0]' if $for_writer; |
e7724627 |
104 | |
53a4677c |
105 | return 'substr ' . $slot_access . ', $offset, $length'; |
e7724627 |
106 | } |
107 | |
8b9641b8 |
108 | no Moose::Role; |
109 | |
e7724627 |
110 | 1; |