Remove contains and contained_in keys

28 files changed, 0 insertions, 206 deletions

diff --git a/paludis/package_id.hh b/paludis/package_id.hh
index 177fe5340..d035f0a06 100644
--- a/paludis/package_id.hh
+++ b/paludis/package_id.hh
@@ -191,17 +191,6 @@ namespace paludis
             virtual const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const = 0;
 
             /**
-             * The contains_key, if non-zero, indicates that a package contains
-             * other packages. This affects dependency resolution. */
-            virtual const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const = 0;
-
-            /**
-             * The contained_in_key, if non-zero, indicates that a package is
-             * contained in another package. This affects dependency resolution.
-             */
-            virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > > contained_in_key() const = 0;
-
-            /**
              * The dependencies_key, if non-zero, provides all of a package's
              * dependencies.
              *
diff --git a/paludis/repositories/accounts/accounts_id.cc b/paludis/repositories/accounts/accounts_id.cc
index c642370d7..086ad62e9 100644
--- a/paludis/repositories/accounts/accounts_id.cc
+++ b/paludis/repositories/accounts/accounts_id.cc
@@ -313,18 +313,6 @@ AccountsID::keywords_key() const
     return make_null_shared_ptr();
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-AccountsID::contains_key() const
-{
-    return make_null_shared_ptr();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-AccountsID::contained_in_key() const
-{
-    return make_null_shared_ptr();
-}
-
 const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
 AccountsID::build_dependencies_key() const
 {
diff --git a/paludis/repositories/accounts/accounts_id.hh b/paludis/repositories/accounts/accounts_id.hh
index fc9a34692..32cfa696d 100644
--- a/paludis/repositories/accounts/accounts_id.hh
+++ b/paludis/repositories/accounts/accounts_id.hh
@@ -63,8 +63,6 @@ namespace paludis
 
                 virtual const std::shared_ptr<const MetadataValueKey<SlotName> > slot_key() const;
                 virtual const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const;
-                virtual const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > > contained_in_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > build_dependencies_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > run_dependencies_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > post_dependencies_key() const;
diff --git a/paludis/repositories/accounts/installed_accounts_id.cc b/paludis/repositories/accounts/installed_accounts_id.cc
index c294d5c9b..482eb113e 100644
--- a/paludis/repositories/accounts/installed_accounts_id.cc
+++ b/paludis/repositories/accounts/installed_accounts_id.cc
@@ -232,18 +232,6 @@ InstalledAccountsID::keywords_key() const
     return make_null_shared_ptr();
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-InstalledAccountsID::contains_key() const
-{
-    return make_null_shared_ptr();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-InstalledAccountsID::contained_in_key() const
-{
-    return make_null_shared_ptr();
-}
-
 const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
 InstalledAccountsID::build_dependencies_key() const
 {
diff --git a/paludis/repositories/accounts/installed_accounts_id.hh b/paludis/repositories/accounts/installed_accounts_id.hh
index ba28344b8..89f4ae559 100644
--- a/paludis/repositories/accounts/installed_accounts_id.hh
+++ b/paludis/repositories/accounts/installed_accounts_id.hh
@@ -61,8 +61,6 @@ namespace paludis
 
                 virtual const std::shared_ptr<const MetadataValueKey<SlotName> > slot_key() const;
                 virtual const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const;
-                virtual const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > > contained_in_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > build_dependencies_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > run_dependencies_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > post_dependencies_key() const;
diff --git a/paludis/repositories/e/e_installed_repository_id.cc b/paludis/repositories/e/e_installed_repository_id.cc
index d1d1a662b..fd7fc25c1 100644
--- a/paludis/repositories/e/e_installed_repository_id.cc
+++ b/paludis/repositories/e/e_installed_repository_id.cc
@@ -1032,18 +1032,6 @@ EInstalledRepositoryID::perform_action(Action & a) const
     a.accept(b);
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-EInstalledRepositoryID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-EInstalledRepositoryID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataValueKey<SlotName> >
 EInstalledRepositoryID::slot_key() const
 {
diff --git a/paludis/repositories/e/e_installed_repository_id.hh b/paludis/repositories/e/e_installed_repository_id.hh
index aa4c7abad..ab0fd99e4 100644
--- a/paludis/repositories/e/e_installed_repository_id.hh
+++ b/paludis/repositories/e/e_installed_repository_id.hh
@@ -71,8 +71,6 @@ namespace paludis
                 virtual const std::shared_ptr<const MetadataValueKey<std::string> > long_description_key() const;
                 virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const Contents> > > contents_key() const;
                 virtual const std::shared_ptr<const MetadataTimeKey> installed_time_key() const;
-                virtual const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > > contained_in_key() const;
                 virtual const std::shared_ptr<const MetadataValueKey<FSPath> > fs_location_key() const;
                 virtual const std::shared_ptr<const MetadataCollectionKey<Set<std::string> > > from_repositories_key() const;
 
diff --git a/paludis/repositories/e/ebuild_id.cc b/paludis/repositories/e/ebuild_id.cc
index 010fed20a..9ef642514 100644
--- a/paludis/repositories/e/ebuild_id.cc
+++ b/paludis/repositories/e/ebuild_id.cc
@@ -1304,18 +1304,6 @@ EbuildID::perform_action(Action & a) const
     a.accept(b);
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-EbuildID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-EbuildID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataSpecTreeKey<PlainTextSpecTree> >
 EbuildID::remote_ids_key() const
 {
diff --git a/paludis/repositories/e/ebuild_id.hh b/paludis/repositories/e/ebuild_id.hh
index b4a411921..81d90f723 100644
--- a/paludis/repositories/e/ebuild_id.hh
+++ b/paludis/repositories/e/ebuild_id.hh
@@ -76,8 +76,6 @@ namespace paludis
                 virtual const std::shared_ptr<const MetadataValueKey<std::string> > long_description_key() const;
                 virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const Contents> > > contents_key() const;
                 virtual const std::shared_ptr<const MetadataTimeKey> installed_time_key() const;
-                virtual const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > > contained_in_key() const;
                 virtual const std::shared_ptr<const MetadataValueKey<FSPath> > fs_location_key() const;
                 virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const Choices> > > choices_key() const;
                 const std::shared_ptr<const MetadataCollectionKey<Set<std::string> > > from_repositories_key() const;
diff --git a/paludis/repositories/fake/fake_package_id.cc b/paludis/repositories/fake/fake_package_id.cc
index eb4773911..2c7a89bd1 100644
--- a/paludis/repositories/fake/fake_package_id.cc
+++ b/paludis/repositories/fake/fake_package_id.cc
@@ -1126,18 +1126,6 @@ FakePackageID::breaks_portage() const
     return std::shared_ptr<const Set<std::string> >();
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-FakePackageID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-FakePackageID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataValueKey<FSPath> >
 FakePackageID::fs_location_key() const
 {
diff --git a/paludis/repositories/fake/fake_package_id.hh b/paludis/repositories/fake/fake_package_id.hh
index 5f9917f7a..3ba726f4a 100644
--- a/paludis/repositories/fake/fake_package_id.hh
+++ b/paludis/repositories/fake/fake_package_id.hh
@@ -251,8 +251,6 @@ namespace paludis
             virtual const std::shared_ptr<const MetadataValueKey<std::string> > long_description_key() const;
             virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const Contents> > > contents_key() const;
             virtual const std::shared_ptr<const MetadataTimeKey> installed_time_key() const;
-            virtual const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-            virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > > contained_in_key() const;
             virtual const std::shared_ptr<const MetadataValueKey<FSPath> > fs_location_key() const;
             virtual const std::shared_ptr<const MetadataValueKey<long> > size_of_download_required_key() const;
             virtual const std::shared_ptr<const MetadataValueKey<long> > size_of_all_distfiles_key() const;
diff --git a/paludis/repositories/gemcutter/gemcutter_id.cc b/paludis/repositories/gemcutter/gemcutter_id.cc
index 88a8e777e..2e169ce32 100644
--- a/paludis/repositories/gemcutter/gemcutter_id.cc
+++ b/paludis/repositories/gemcutter/gemcutter_id.cc
@@ -317,18 +317,6 @@ GemcutterID::extra_hash_value() const
     return 0;
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-GemcutterID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-GemcutterID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataValueKey<FSPath> >
 GemcutterID::fs_location_key() const
 {
diff --git a/paludis/repositories/gemcutter/gemcutter_id.hh b/paludis/repositories/gemcutter/gemcutter_id.hh
index a7440eb45..4c5e7c624 100644
--- a/paludis/repositories/gemcutter/gemcutter_id.hh
+++ b/paludis/repositories/gemcutter/gemcutter_id.hh
@@ -67,9 +67,6 @@ namespace paludis
 
                  const std::shared_ptr<const MetadataValueKey<SlotName> > slot_key() const;
                  const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const;
-                 const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                 const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-                     contained_in_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
                      dependencies_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
diff --git a/paludis/repositories/repository/repository_id.cc b/paludis/repositories/repository/repository_id.cc
index cf6de6008..84634ad34 100644
--- a/paludis/repositories/repository/repository_id.cc
+++ b/paludis/repositories/repository/repository_id.cc
@@ -180,18 +180,6 @@ RepositoryID::extra_hash_value() const
     return 0;
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-RepositoryID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-RepositoryID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataValueKey<FSPath> >
 RepositoryID::fs_location_key() const
 {
diff --git a/paludis/repositories/repository/repository_id.hh b/paludis/repositories/repository/repository_id.hh
index 4f6734ee8..f66a985d4 100644
--- a/paludis/repositories/repository/repository_id.hh
+++ b/paludis/repositories/repository/repository_id.hh
@@ -65,9 +65,6 @@ namespace paludis
 
                  const std::shared_ptr<const MetadataValueKey<SlotName> > slot_key() const;
                  const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const;
-                 const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                 const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-                     contained_in_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
                      dependencies_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
diff --git a/paludis/repositories/unavailable/unavailable_package_id.cc b/paludis/repositories/unavailable/unavailable_package_id.cc
index 703a6e5c8..8817b50c5 100644
--- a/paludis/repositories/unavailable/unavailable_package_id.cc
+++ b/paludis/repositories/unavailable/unavailable_package_id.cc
@@ -204,18 +204,6 @@ UnavailablePackageID::extra_hash_value() const
                 slot_key()->parse_value(), *_imp->from_repositories_key->parse_value()->begin()));
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-UnavailablePackageID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-UnavailablePackageID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataValueKey<FSPath> >
 UnavailablePackageID::fs_location_key() const
 {
diff --git a/paludis/repositories/unavailable/unavailable_package_id.hh b/paludis/repositories/unavailable/unavailable_package_id.hh
index fea906644..06cf4c9e2 100644
--- a/paludis/repositories/unavailable/unavailable_package_id.hh
+++ b/paludis/repositories/unavailable/unavailable_package_id.hh
@@ -79,9 +79,6 @@ namespace paludis
 
                  const std::shared_ptr<const MetadataValueKey<SlotName> > slot_key() const;
                  const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const;
-                 const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                 const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-                     contained_in_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
                      dependencies_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
diff --git a/paludis/repositories/unavailable/unavailable_repository_id.cc b/paludis/repositories/unavailable/unavailable_repository_id.cc
index 248247033..ff9e277ca 100644
--- a/paludis/repositories/unavailable/unavailable_repository_id.cc
+++ b/paludis/repositories/unavailable/unavailable_repository_id.cc
@@ -311,18 +311,6 @@ UnavailableRepositoryID::extra_hash_value() const
     return 0;
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-UnavailableRepositoryID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-UnavailableRepositoryID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataValueKey<FSPath> >
 UnavailableRepositoryID::fs_location_key() const
 {
diff --git a/paludis/repositories/unavailable/unavailable_repository_id.hh b/paludis/repositories/unavailable/unavailable_repository_id.hh
index 97dc314d1..b958a14fa 100644
--- a/paludis/repositories/unavailable/unavailable_repository_id.hh
+++ b/paludis/repositories/unavailable/unavailable_repository_id.hh
@@ -79,9 +79,6 @@ namespace paludis
 
                  const std::shared_ptr<const MetadataValueKey<SlotName> > slot_key() const;
                  const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const;
-                 const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                 const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-                     contained_in_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
                      dependencies_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
diff --git a/paludis/repositories/unpackaged/installed_id.cc b/paludis/repositories/unpackaged/installed_id.cc
index 74736126c..5b44d7755 100644
--- a/paludis/repositories/unpackaged/installed_id.cc
+++ b/paludis/repositories/unpackaged/installed_id.cc
@@ -550,18 +550,6 @@ InstalledUnpackagedID::keywords_key() const
     return std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> >();
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-InstalledUnpackagedID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-InstalledUnpackagedID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
 InstalledUnpackagedID::dependencies_key() const
 {
diff --git a/paludis/repositories/unpackaged/installed_id.hh b/paludis/repositories/unpackaged/installed_id.hh
index ba6af9e42..8d26fc400 100644
--- a/paludis/repositories/unpackaged/installed_id.hh
+++ b/paludis/repositories/unpackaged/installed_id.hh
@@ -58,8 +58,6 @@ namespace paludis
 
                 virtual const std::shared_ptr<const MetadataValueKey<SlotName> > slot_key() const;
                 virtual const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const;
-                virtual const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > > contained_in_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > dependencies_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > build_dependencies_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > run_dependencies_key() const;
diff --git a/paludis/repositories/unpackaged/unpackaged_id.cc b/paludis/repositories/unpackaged/unpackaged_id.cc
index 99ba624ed..fc52de87d 100644
--- a/paludis/repositories/unpackaged/unpackaged_id.cc
+++ b/paludis/repositories/unpackaged/unpackaged_id.cc
@@ -209,18 +209,6 @@ UnpackagedID::keywords_key() const
     return std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> >();
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-UnpackagedID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-UnpackagedID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
 UnpackagedID::dependencies_key() const
 {
diff --git a/paludis/repositories/unpackaged/unpackaged_id.hh b/paludis/repositories/unpackaged/unpackaged_id.hh
index ef8a5036f..415bd7ec4 100644
--- a/paludis/repositories/unpackaged/unpackaged_id.hh
+++ b/paludis/repositories/unpackaged/unpackaged_id.hh
@@ -57,8 +57,6 @@ namespace paludis
 
                 virtual const std::shared_ptr<const MetadataValueKey<SlotName> > slot_key() const;
                 virtual const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const;
-                virtual const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                virtual const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > > contained_in_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > dependencies_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > build_dependencies_key() const;
                 virtual const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> > run_dependencies_key() const;
diff --git a/paludis/repositories/unwritten/unwritten_id.cc b/paludis/repositories/unwritten/unwritten_id.cc
index 8f7ecbe67..71a715462 100644
--- a/paludis/repositories/unwritten/unwritten_id.cc
+++ b/paludis/repositories/unwritten/unwritten_id.cc
@@ -204,18 +204,6 @@ UnwrittenID::extra_hash_value() const
     return Hash<SlotName>()(slot_key()->parse_value());
 }
 
-const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >
-UnwrittenID::contains_key() const
-{
-    return std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> >();
-}
-
-const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-UnwrittenID::contained_in_key() const
-{
-    return std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >();
-}
-
 const std::shared_ptr<const MetadataValueKey<FSPath> >
 UnwrittenID::fs_location_key() const
 {
diff --git a/paludis/repositories/unwritten/unwritten_id.hh b/paludis/repositories/unwritten/unwritten_id.hh
index 180eaae1c..985536139 100644
--- a/paludis/repositories/unwritten/unwritten_id.hh
+++ b/paludis/repositories/unwritten/unwritten_id.hh
@@ -91,9 +91,6 @@ namespace paludis
 
                  const std::shared_ptr<const MetadataValueKey<SlotName> > slot_key() const;
                  const std::shared_ptr<const MetadataCollectionKey<KeywordNameSet> > keywords_key() const;
-                 const std::shared_ptr<const MetadataCollectionKey<PackageIDSequence> > contains_key() const;
-                 const std::shared_ptr<const MetadataValueKey<std::shared_ptr<const PackageID> > >
-                     contained_in_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
                      dependencies_key() const;
                  const std::shared_ptr<const MetadataSpecTreeKey<DependencySpecTree> >
diff --git a/paludis/user_dep_spec.cc b/paludis/user_dep_spec.cc
index 259f4e956..d8f45baa1 100644
--- a/paludis/user_dep_spec.cc
+++ b/paludis/user_dep_spec.cc
@@ -954,10 +954,6 @@ UserKeyRequirement::requirement_met(
             key = id->build_dependencies_key().get();
         else if (_imp->key == "$choices")
             key = id->choices_key().get();
-        else if (_imp->key == "$contained_in")
-            key = id->contained_in_key().get();
-        else if (_imp->key == "$contains")
-            key = id->contains_key().get();
         else if (_imp->key == "$contents")
             key = id->contents_key().get();
         else if (_imp->key == "$dependencies")
diff --git a/python/package_id.cc b/python/package_id.cc
index 4325d14b0..384f9242b 100644
--- a/python/package_id.cc
+++ b/python/package_id.cc
@@ -113,16 +113,6 @@ void expose_package_id()
                 "to determine whether a package is unused."
             )
 
-        .def("contains_key", &PackageID::contains_key,
-                "The contains_key, if not None, indicates that a package contains\n"
-                "other packages. This affects dependency resolution."
-            )
-
-        .def("contained_in_key", &PackageID::contained_in_key,
-                "The contained_in_key, if not None, indicates that a package is\n"
-                "contained in another package. This affects dependency resolution."
-            )
-
         .def("build_dependencies_key", &PackageID::build_dependencies_key,
                 "The build_dependencies_key, if not None, indicates a package's\n"
                 "build-time dependencies."
diff --git a/python/package_id_TEST.py b/python/package_id_TEST.py
index 49644262e..51c6cf9ff 100755
--- a/python/package_id_TEST.py
+++ b/python/package_id_TEST.py
@@ -104,14 +104,6 @@ class TestCase_01_PackageID(unittest.TestCase):
         mask = iter(self.mpid.masks).next()
         self.assert_(isinstance(mask, UnacceptedMask))
 
-    def test_16_contains_key(self):
-        self.assertEquals(self.pid.contains_key(), None)
-        self.assertEquals(self.ipid.contains_key(), None)
-
-    def test_17_contained_in_key(self):
-        self.assertEquals(self.pid.contained_in_key(), None)
-        self.assertEquals(self.ipid.contained_in_key(), None)
-
     def test_18_build_dependencies_key(self):
         self.assert_(isinstance(self.pid.build_dependencies_key(), MetadataDependencySpecTreeKey))
         self.assertEquals(self.ipid.build_dependencies_key(), None)