line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
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38
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38
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751
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use 5.014; |
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38
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88
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2
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38
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38
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144
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use strict; |
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38
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47
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38
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823
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3
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38
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38
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120
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use warnings; |
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38
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45
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38
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3052
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4
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5
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package Kavorka::ReturnType; |
6
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7
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our $AUTHORITY = 'cpan:TOBYINK'; |
8
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our $VERSION = '0.037'; |
9
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our @CARP_NOT = qw( Kavorka::Signature Kavorka::Sub Kavorka ); |
10
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11
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38
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38
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152
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use Carp qw( croak ); |
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38
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42
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38
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2000
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12
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38
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38
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154
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use Parse::Keyword {}; |
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38
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42
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38
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274
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13
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38
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38
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3706
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use Parse::KeywordX qw(parse_trait); |
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38
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50
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38
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293
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14
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15
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38
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38
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6619
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use Moo; |
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38
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51
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38
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189
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16
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38
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38
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15281
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use namespace::sweep; |
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38
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61
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38
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274
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17
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18
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has package => (is => 'ro'); |
19
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has type => (is => 'ro'); |
20
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has traits => (is => 'ro', default => sub { +{} }); |
21
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22
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6
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6
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0
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35
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sub coerce { !!shift->traits->{coerce} } |
23
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8
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8
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0
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30
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sub list { !!shift->traits->{list} } |
24
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7
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7
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0
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33
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sub assumed { !!shift->traits->{assumed} } |
25
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26
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sub BUILD |
27
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{ |
28
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4
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4
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0
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426
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my $self = shift; |
29
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30
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# traits handled natively |
31
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4
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14
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state $native_traits = { |
32
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coerce => 1, |
33
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list => 1, |
34
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scalar => 1, |
35
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}; |
36
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37
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my @custom_traits = |
38
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map "Kavorka::TraitFor::ReturnType::$_", |
39
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grep !exists($native_traits->{$_}), |
40
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4
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6
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keys %{$self->traits}; |
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4
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28
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41
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42
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4
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50
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112
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'Moo::Role'->apply_roles_to_object($self, @custom_traits) if @custom_traits; |
43
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} |
44
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45
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sub parse |
46
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{ |
47
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4
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4
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0
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50
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my $class = shift; |
48
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4
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13
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my %args = @_; |
49
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50
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4
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7
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lex_read_space; |
51
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52
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4
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7
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my %traits = (); |
53
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54
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4
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3
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my $type; |
55
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4
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9
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my $peek = lex_peek(1000); |
56
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4
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100
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23
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if ($peek =~ /\A[^\W0-9]/) |
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50
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57
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{ |
58
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3
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3
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my $reg = do { |
59
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3
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531
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require Type::Registry; |
60
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3
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9286
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require Type::Utils; |
61
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3
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25907
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my $tmp = 'Type::Registry::DWIM'->new; |
62
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3
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25
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$tmp->{'~~chained'} = $args{package}; |
63
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3
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7
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$tmp->{'~~assume'} = 'Type::Tiny::Class'; |
64
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3
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4
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$tmp; |
65
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}; |
66
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67
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3
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18
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require Type::Parser; |
68
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3
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11
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($type, my($remaining)) = Type::Parser::extract_type($peek, $reg); |
69
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3
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51135
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my $len = length($peek) - length($remaining); |
70
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3
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18
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lex_read($len); |
71
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3
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22
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lex_read_space; |
72
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} |
73
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elsif ($peek =~ /\A\(/) |
74
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{ |
75
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1
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3
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lex_read(1); |
76
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1
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3
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lex_read_space; |
77
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1
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0
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41
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my $expr = parse_listexpr |
78
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or croak('Could not parse type constraint expression as listexpr'); |
79
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1
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4
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lex_read_space; |
80
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1
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0
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3
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lex_peek eq ')' |
81
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or croak("Expected ')' after type constraint expression"); |
82
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1
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4
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lex_read(1); |
83
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1
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1
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lex_read_space; |
84
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85
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1
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6
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require Types::TypeTiny; |
86
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1
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4
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$type = Types::TypeTiny::to_TypeTiny( scalar $expr->() ); |
87
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1
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50
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9
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$type->isa('Type::Tiny') |
88
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or croak("Type constraint expression did not return a blessed type constraint object"); |
89
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} |
90
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else |
91
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{ |
92
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0
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0
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croak("Expected return type!"); |
93
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} |
94
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95
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4
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15
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undef($peek); |
96
|
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97
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4
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24
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while (lex_peek(5) =~ m{ \A (is|does|but) \s }xsm) |
98
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{ |
99
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2
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10
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lex_read(length($1)); |
100
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2
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4
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lex_read_space; |
101
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2
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8
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my ($name, undef, $args) = parse_trait; |
102
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2
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5
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$traits{$name} = $args; |
103
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2
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10
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lex_read_space; |
104
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} |
105
|
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106
|
4
|
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145
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return $class->new( |
107
|
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%args, |
108
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type => $type, |
109
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traits => \%traits, |
110
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); |
111
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} |
112
|
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113
|
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sub sanity_check |
114
|
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{ |
115
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4
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4
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0
|
5
|
my $self = shift; |
116
|
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117
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4
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50
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33
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10
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croak("Return type cannot coerce and be assumed") |
118
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if $self->assumed && $self->coerce; |
119
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120
|
4
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9
|
(); |
121
|
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} |
122
|
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123
|
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sub _effective_type |
124
|
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{ |
125
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4
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4
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6
|
my $self = shift; |
126
|
4
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30
|
$self->type; |
127
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} |
128
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129
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1; |