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-rw-r--r--paludis/resolver/get_destination_types_for_blocker_helper.cc127
1 files changed, 127 insertions, 0 deletions
diff --git a/paludis/resolver/get_destination_types_for_blocker_helper.cc b/paludis/resolver/get_destination_types_for_blocker_helper.cc
new file mode 100644
index 000000000..7bd08e337
--- /dev/null
+++ b/paludis/resolver/get_destination_types_for_blocker_helper.cc
@@ -0,0 +1,127 @@
+/* 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/get_destination_types_for_blocker_helper.hh>
+#include <paludis/resolver/reason.hh>
+#include <paludis/resolver/constraint.hh>
+#include <paludis/resolver/resolvent.hh>
+#include <paludis/resolver/resolution.hh>
+#include <paludis/resolver/decision.hh>
+#include <paludis/util/pimp-impl.hh>
+#include <paludis/util/simple_visitor_cast.hh>
+#include <paludis/util/make_shared_copy.hh>
+#include <paludis/util/make_named_values.hh>
+#include <paludis/util/stringify.hh>
+#include <paludis/dep_spec.hh>
+#include <paludis/package_id.hh>
+#include <paludis/package_dep_spec_collection.hh>
+#include <paludis/partially_made_package_dep_spec.hh>
+#include <paludis/elike_slot_requirement.hh>
+#include <paludis/metadata_key.hh>
+
+using namespace paludis;
+using namespace paludis::resolver;
+
+namespace paludis
+{
+ template <>
+ struct Imp<GetDestinationTypesForBlockerHelper>
+ {
+ const Environment * const env;
+ DestinationType target_destination_type;
+
+ Imp(const Environment * const e) :
+ env(e),
+ target_destination_type(dt_install_to_slash)
+ {
+ }
+ };
+}
+
+GetDestinationTypesForBlockerHelper::GetDestinationTypesForBlockerHelper(const Environment * const e) :
+ Pimp<GetDestinationTypesForBlockerHelper>(e)
+{
+}
+
+GetDestinationTypesForBlockerHelper::~GetDestinationTypesForBlockerHelper() = default;
+
+void
+GetDestinationTypesForBlockerHelper::set_target_destination_type(const DestinationType d)
+{
+ _imp->target_destination_type = d;
+}
+
+namespace
+{
+ struct DestinationTypesFinder
+ {
+ const DestinationType target_destination_type;
+
+ DestinationTypes visit(const TargetReason &) const
+ {
+ return { target_destination_type };
+ }
+
+ DestinationTypes visit(const DependentReason &) const
+ {
+ return { dt_install_to_slash };
+ }
+
+ DestinationTypes visit(const ViaBinaryReason &) const
+ {
+ return { };
+ }
+
+ DestinationTypes visit(const WasUsedByReason &) const
+ {
+ return { dt_install_to_slash };
+ }
+
+ DestinationTypes visit(const DependencyReason &) const
+ {
+ return { dt_install_to_slash };
+ }
+
+ DestinationTypes visit(const PresetReason &) const
+ {
+ return { };
+ }
+
+ DestinationTypes visit(const LikeOtherDestinationTypeReason & r) const
+ {
+ return r.reason_for_other()->accept_returning<DestinationTypes>(*this);
+ }
+
+ DestinationTypes visit(const SetReason & r) const
+ {
+ return r.reason_for_set()->accept_returning<DestinationTypes>(*this);
+ }
+ };
+}
+
+DestinationTypes
+GetDestinationTypesForBlockerHelper::operator() (
+ const BlockDepSpec &,
+ const std::shared_ptr<const Reason> & reason) const
+{
+ return reason->accept_returning<DestinationTypes>(DestinationTypesFinder{_imp->target_destination_type});
+}
+
+template class Pimp<GetDestinationTypesForBlockerHelper>;
+