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authorAvatar Ciaran McCreesh <ciaran.mccreesh@googlemail.com> 2010-08-07 14:59:58 +0100
committerAvatar Ciaran McCreesh <ciaran.mccreesh@googlemail.com> 2010-08-08 10:53:07 +0100
commit33ea45ba2c2ca7cf11f78990f890e1cce546bccc (patch)
treead67e1c1078e1adb4c0b0964ac5cdd3ecc2aa47f /paludis/resolver/prefer_or_avoid_helper.cc
parent4f3ae9c127c9865056a598b46716c8d12cdd6676 (diff)
downloadpaludis-33ea45ba2c2ca7cf11f78990f890e1cce546bccc.tar.gz
paludis-33ea45ba2c2ca7cf11f78990f890e1cce546bccc.tar.xz
PreferOrAvoidHelper
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+/* vim: set sw=4 sts=4 et foldmethod=syntax : */
+
+/*
+ * Copyright (c) 2010 Ciaran McCreesh
+ *
+ * This file is part of the Paludis package manager. Paludis is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU General
+ * Public License version 2, as published by the Free Software Foundation.
+ *
+ * Paludis 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., 59 Temple
+ * Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <paludis/resolver/prefer_or_avoid_helper.hh>
+#include <paludis/util/pimp-impl.hh>
+#include <paludis/util/hashes.hh>
+#include <paludis/util/tribool.hh>
+#include <paludis/name.hh>
+#include <unordered_set>
+
+using namespace paludis;
+using namespace paludis::resolver;
+
+namespace paludis
+{
+ template <>
+ struct Imp<PreferOrAvoidHelper>
+ {
+ const Environment * const env;
+ std::unordered_set<QualifiedPackageName, Hash<QualifiedPackageName> > prefer_names;
+ std::unordered_set<QualifiedPackageName, Hash<QualifiedPackageName> > avoid_names;
+
+ Imp(const Environment * const e) :
+ env(e)
+ {
+ }
+ };
+}
+
+PreferOrAvoidHelper::PreferOrAvoidHelper(const Environment * const e) :
+ Pimp<PreferOrAvoidHelper>(e)
+{
+}
+
+PreferOrAvoidHelper::~PreferOrAvoidHelper() = default;
+
+void
+PreferOrAvoidHelper::add_prefer_name(const QualifiedPackageName & name)
+{
+ _imp->prefer_names.insert(name);
+}
+
+void
+PreferOrAvoidHelper::add_avoid_name(const QualifiedPackageName & name)
+{
+ _imp->avoid_names.insert(name);
+}
+
+Tribool
+PreferOrAvoidHelper::operator() (const QualifiedPackageName & n) const
+{
+ if (_imp->prefer_names.end() != _imp->prefer_names.find(n))
+ return true;
+
+ if (_imp->avoid_names.end() != _imp->avoid_names.find(n))
+ return false;
+
+ return indeterminate;
+}
+
+template class Pimp<PreferOrAvoidHelper>;
+