/[Frey]/trunk/lib/Frey/PPI.pm
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Contents of /trunk/lib/Frey/PPI.pm

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Revision 364 - (show annotations)
Sun Nov 16 19:50:36 2008 UTC (15 years, 5 months ago) by dpavlin
File size: 1677 byte(s)
tweak various bits on Frey::PPI to wrap find within tree
in evals so we can *SEE* errors, and split out includes
which can be called externally. Support also values as from
type constraints.
1 package Frey::PPI;
2 use Moose;
3
4 extends 'Frey::ClassLoader';
5
6 use PPI;
7 use Data::Dump qw/dump/;
8
9 has 'class' => (
10 is => 'rw',
11 isa => 'Str',
12 required => 1,
13 documentation => 'Name of class to parse',
14 );
15
16 has 'doc' => (
17 is => 'ro',
18 isa => 'PPI::Document',
19 lazy => 1,
20 default => sub {
21 my ( $self ) = @_;
22 warn "doc from ", $self->class;
23 my $doc = PPI::Document->new( $self->class_path( $self->class ) ) || die $!;
24 $doc->prune('PPI::Token::Whitespace');
25 return $doc;
26 },
27 );
28
29 sub find {
30 my ( $self, $coderef ) = @_;
31
32 my $doc = $self->doc;
33 $doc->find(sub {
34 my ( $doc,$el ) = @_;
35 eval { $coderef->( $doc, $el ) };
36 warn "ERROR: $@" if $@;
37 });
38 }
39
40 sub attribute_order {
41 my ( $self ) = @_;
42
43 my $attribute_order;
44 $self->find(sub {
45 my ($doc,$el) = @_;
46 return unless ( $el->isa('PPI::Statement') && $el->{children}->[0]->isa('PPI::Token::Word') && $el->{children}->[0]->literal eq 'has' );
47
48 warn "## has ",$el->{children}->[1]->literal if $self->debug;
49 push @$attribute_order, $el->{children}->[1]->literal;
50 });
51
52 warn "# ", $self->class, " attribute_order ", dump( $attribute_order ) if $self->debug;
53
54 return $attribute_order;
55 }
56
57 sub includes {
58 my $self = shift;
59
60 my $include;
61 $self->find(sub {
62 my ($doc,$el) = @_;
63 return unless $el->isa('PPI::Statement::Include');
64
65 warn "## include ",dump( $el->module, $el->type, $el->pragma ) if $self->debug;
66 push @{ $include->{ $el->type } }, $el->module
67 });
68 warn "# ", $self->class, " include ", dump( $include ) if $self->debug;
69 return $include;
70 }
71
72 sub data {
73 my $self = shift;
74 return {
75 includes => $self->includes,
76 attribute_order => $self->attribute_order,
77 doc => $self->doc,
78 };
79 }
80
81 1;

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