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# Copyright (C) 2008 Arne Georg Gleditsch <lxr@linux.no>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# The full GNU General Public License is included in this distribution
# in the file called COPYING.
package LXRng::Index::Generic;
use strict;
use Memoize;
sub new {
my ($class, %args) = @_;
memoize('tree_id');
memoize('release_id');
return bless(\%args, $class);
}
sub prefix {
my ($self) = @_;
if (exists $$self{'table_prefix'}) {
return $$self{'table_prefix'}.'_';
}
else {
return '';
}
}
sub tree_id {
my ($self, $tree, $update) = @_;
return $self->_get_tree($tree) ||
($update ? $self->_add_tree($tree) : undef);
}
sub release_id {
my ($self, $tree, $release, $update) = @_;
my $tree_id = $self->tree_id($tree, $update);
return $self->_get_release($tree_id, $release) ||
($update ? $self->_add_release($tree_id, $release) : undef);
}
sub file_id {
my ($self, $path, $update) = @_;
return $self->_get_file($path) ||
($update ? $self->_add_file($path) : undef);
}
sub rfile_id {
my ($self, $node, $update) = @_;
my $path = $node->name;
my $revision = $node->revision;
my $file_id = $self->file_id($path, $update);
return undef unless $file_id;
my ($id, $old_stamp) = $self->_get_rfile($file_id, $revision);
return $id unless $update;
if ($id) {
my ($new_stamp) = $node->time =~ /^(\d+)/;
if ($update and $old_stamp > $new_stamp) {
$self->_update_rfile_timestamp($id, $node->time);
}
}
else {
$id = $self->_add_rfile($file_id, $revision, $node->time);
}
return $id;
}
sub symbol_id {
my ($self, $symbol, $update) = @_;
return $self->_get_symbol($symbol) ||
($update ? $self->_add_symbol($symbol) : undef);
}
sub add_filerelease {
my ($self, $tree, $release, $rfile_id) = @_;
my $rel_id = $self->release_id($tree, $release, 1);
$self->_add_filerelease($rfile_id, $rel_id);
}
sub add_include {
my ($self, $file_id, $include_path) = @_;
my $inc_id = $self->_get_file($include_path);
return 0 unless $inc_id;
return $self->_add_include($file_id, $inc_id);
}
sub includes_by_file {
my ($self, $tree, $release, $path) = @_;
my $file_id = $self->file_id($tree, $release, $path);
return $self->_includes_by_id($file_id);
}
sub add_ident {
my ($self, $rfile_id, $line, $symbol, $type, $ctx_id) = @_;
my $sym_id = $self->symbol_id($symbol, 1);
return $self->_add_ident($rfile_id, $line, $sym_id, $type, $ctx_id);
}
sub symbol_by_id {
my ($self, $id) = @_;
return $self->_symbol_by_id($id);
}
sub identifiers_by_name {
my ($self, $tree, $release, $symbol) = @_;
my $rel_id = $self->release_id($tree, $release);
return $self->_identifiers_by_name($rel_id, $symbol);
}
sub symbols_by_file {
my ($self, $tree, $release, $path) = @_;
$path =~ s!^/!!;
my $rel_id = $self->_get_release($self->_get_tree($tree), $release);
my $rfile_id = $self->_get_rfile_by_release($rel_id, $path);
return $self->_symbols_by_file($rfile_id);
}
sub add_usage {
my ($self, $doc, $file_id, $sym_id, $lines) = @_;
return $self->_add_usage($file_id, $sym_id, $lines);
}
# TODO: What functionality actually uses this? Can it be removed?
sub usage_by_file {
my ($self, $tree, $release, $path) = @_;
my $rel_id = $self->_get_release($self->_get_tree($tree), $release);
my $rfile_id = $self->_get_rfile_by_release($rel_id, $path);
return $self->_usage_by_file($rfile_id);
}
sub get_referring_files {
my ($self, $rel_id, $rfile_id, $res) = @_;
$res ||= {};
$self->_get_includes_by_file($res, $rel_id, $rfile_id);
return keys %$res;
}
1;
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