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1 | package Devel::Declare::Context::Simple; |
2 | |
3 | use Devel::Declare (); |
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4 | use B::Hooks::EndOfScope; |
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5 | use strict; |
6 | use warnings; |
7 | |
8 | sub new { |
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9 | my $class = shift; |
10 | bless {@_}, $class; |
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11 | } |
12 | |
13 | sub init { |
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14 | my $self = shift; |
15 | @{$self}{ qw(Declarator Offset) } = @_; |
16 | $self; |
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17 | } |
18 | |
19 | sub offset : lvalue { shift->{Offset}; } |
20 | sub declarator { shift->{Declarator} } |
21 | |
22 | sub skip_declarator { |
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23 | my $self = shift; |
24 | $self->offset += Devel::Declare::toke_move_past_token( $self->offset ); |
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25 | } |
26 | |
27 | sub skipspace { |
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28 | my $self = shift; |
29 | $self->offset += Devel::Declare::toke_skipspace( $self->offset ); |
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30 | } |
31 | |
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32 | sub get_linestr { |
33 | my $self = shift; |
34 | my $line = Devel::Declare::get_linestr(); |
35 | return $line; |
36 | } |
37 | |
38 | sub set_linestr { |
39 | my $self = shift; |
40 | my ($line) = @_; |
41 | Devel::Declare::set_linestr($line); |
42 | } |
43 | |
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44 | sub strip_name { |
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45 | my $self = shift; |
46 | $self->skipspace; |
47 | if (my $len = Devel::Declare::toke_scan_word( $self->offset, 1 )) { |
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48 | my $linestr = $self->get_linestr(); |
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49 | my $name = substr( $linestr, $self->offset, $len ); |
50 | substr( $linestr, $self->offset, $len ) = ''; |
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51 | $self->set_linestr($linestr); |
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52 | return $name; |
53 | } |
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54 | |
55 | $self->skipspace; |
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56 | return; |
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57 | } |
58 | |
59 | sub strip_proto { |
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60 | my $self = shift; |
61 | $self->skipspace; |
62 | |
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63 | my $linestr = $self->get_linestr(); |
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64 | if (substr($linestr, $self->offset, 1) eq '(') { |
65 | my $length = Devel::Declare::toke_scan_str($self->offset); |
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66 | my $proto = Devel::Declare::get_lex_stuff(); |
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67 | Devel::Declare::clear_lex_stuff(); |
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68 | if( $length < 0 ) { |
69 | # Need to scan ahead more |
70 | $linestr .= $self->get_linestr(); |
71 | $length = rindex($linestr, ")") - $self->offset + 1; |
72 | } |
73 | else { |
74 | $linestr = $self->get_linestr(); |
75 | } |
76 | |
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77 | substr($linestr, $self->offset, $length) = ''; |
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78 | $self->set_linestr($linestr); |
79 | |
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80 | return $proto; |
81 | } |
82 | return; |
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83 | } |
84 | |
85 | sub get_curstash_name { |
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86 | return Devel::Declare::get_curstash_name; |
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87 | } |
88 | |
89 | sub shadow { |
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90 | my $self = shift; |
91 | my $pack = $self->get_curstash_name; |
92 | Devel::Declare::shadow_sub( $pack . '::' . $self->declarator, $_[0] ); |
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93 | } |
94 | |
95 | sub inject_if_block { |
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96 | my $self = shift; |
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97 | my $inject = shift; |
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98 | my $before = shift || ''; |
99 | |
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100 | $self->skipspace; |
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101 | |
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102 | my $linestr = $self->get_linestr; |
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103 | if (substr($linestr, $self->offset, 1) eq '{') { |
104 | substr($linestr, $self->offset + 1, 0) = $inject; |
105 | substr($linestr, $self->offset, 0) = $before; |
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106 | $self->set_linestr($linestr); |
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107 | } |
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108 | } |
109 | |
110 | sub scope_injector_call { |
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111 | my $self = shift; |
112 | my $inject = shift || ''; |
113 | return ' BEGIN { ' . ref($self) . "->inject_scope('${inject}') }; "; |
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114 | } |
115 | |
116 | sub inject_scope { |
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117 | my $class = shift; |
118 | my $inject = shift; |
119 | on_scope_end { |
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120 | my $linestr = Devel::Declare::get_linestr; |
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121 | return unless defined $linestr; |
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122 | my $offset = Devel::Declare::get_linestr_offset; |
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123 | substr( $linestr, $offset, 0 ) = ';' . $inject; |
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124 | Devel::Declare::set_linestr($linestr); |
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125 | }; |
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126 | } |
127 | |
128 | 1; |
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129 | # vi:sw=2 ts=2 |