Perlito5 - perl6 - refator "while <>" to "for lines"

fglock · Oct 16, 2013 · 674c046 · 674c046
1 parent 3ce38e5
commit 674c046
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Showing 3 changed files with 32 additions and 0 deletions.
diff --git a/perlito5.pl b/perlito5.pl
@@ -12289,6 +12289,12 @@ package Perlito5::Perl6::TreeGrammar;
 # use Data::Dumper
 # use strict
 # use Perlito5::TreeGrammar
+sub Perlito5::Perl6::TreeGrammar::refactor_while_glob {
+    my($class, $in) = @_;
+    Perlito5::TreeGrammar::render(['Ref' => 'Perlito5::AST::While', ['Lookup' => 'cond', ['And' => ['Ref' => 'Perlito5::AST::Apply'], ['Lookup' => 'code', ['Value' => 'glob']], ['Action' => sub {
+        bless($in, 'Perlito5::AST::For')
+    }]]]], $in)
+}
 sub Perlito5::Perl6::TreeGrammar::refactor_sub_arguments {
     my($class, $in) = @_;
     my($rule, $result);
@@ -12755,6 +12761,10 @@ package Perlito5::AST::While;
 {
     sub Perlito5::AST::While::emit_perl6 {
         my $self = $_[0];
+        Perlito5::Perl6::TreeGrammar->refactor_while_glob($self);
+        if (ref($self) ne 'Perlito5::AST::While') {
+            return($self->emit_perl6())
+        }
         my @out;
         push(@out, ['label' => $self->{'label'}])
             if $self->{'label'};

diff --git a/src5/lib/Perlito5/Perl6/Emitter.pm b/src5/lib/Perlito5/Perl6/Emitter.pm
@@ -573,6 +573,13 @@ package Perlito5::AST::While;
 {
     sub emit_perl6 {
         my $self = $_[0];
+
+        Perlito5::Perl6::TreeGrammar->refactor_while_glob($self);
+        if (ref($self) ne 'Perlito5::AST::While') {
+            # the node was refactored into something else
+            return $self->emit_perl6();
+        }
+
         my @out;
         push @out, [ label => $self->{label} ]
             if $self->{label};        

diff --git a/src5/lib/Perlito5/Perl6/TreeGrammar.pm b/src5/lib/Perlito5/Perl6/TreeGrammar.pm
@@ -3,6 +3,21 @@ use Data::Dumper;
 use strict;
 use Perlito5::TreeGrammar;
 
+sub refactor_while_glob {
+    my ($class, $in) = @_;
+    Perlito5::TreeGrammar::render(
+        [   Ref => 'Perlito5::AST::While',
+            [ Lookup => 'cond', 
+                 [ And => [ Ref    => 'Perlito5::AST::Apply' ],
+                          [ Lookup => 'code', [ Value => 'glob' ] ],
+                          [ Action => sub { bless $in, 'Perlito5::AST::For' } ]
+                 ]
+            ]
+        ],
+        $in
+    );
+}
+
 sub refactor_sub_arguments {
     my ($class, $in) = @_;
     my ( $rule, $result );