Add ODB container traits for small_vector

1 files changed, 67 insertions, 0 deletions

diff --git a/libbutl/small-vector-odb.hxx b/libbutl/small-vector-odb.hxx
new file mode 100644
index 0000000..4273e61
--- /dev/null
+++ b/libbutl/small-vector-odb.hxx
@@ -0,0 +1,67 @@
+// file      : libbutl/small-vector-odb.hxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#pragma once
+
+#include <odb/pre.hxx>
+
+#include <libbutl/small-vector.mxx>
+
+#include <odb/container-traits.hxx>
+
+namespace odb
+{
+  template <typename V, std::size_t N>
+  class access::container_traits<butl::small_vector<V, N>>
+  {
+  public:
+    static const container_kind kind = ck_ordered;
+    static const bool smart = false;
+
+    using container_type = butl::small_vector<V, N>;
+
+    using value_type = V;
+    using index_type = typename container_type::size_type;
+
+    using functions = ordered_functions<index_type, value_type>;
+
+  public:
+    static void
+    persist (const container_type& c, const functions& f)
+    {
+      for (index_type i (0), n (c.size ()); i < n; ++i)
+        f.insert (i, c[i]);
+    }
+
+    static void
+    load (container_type& c, bool more, const functions& f)
+    {
+      c.clear ();
+
+      while (more)
+      {
+        index_type dummy;
+        c.push_back (value_type ());
+        more = f.select (dummy, c.back ());
+      }
+    }
+
+    static void
+    update (const container_type& c, const functions& f)
+    {
+      f.delete_ ();
+
+      for (index_type i (0), n (c.size ()); i < n; ++i)
+        f.insert (i, c[i]);
+    }
+
+    static void
+    erase (const functions& f)
+    {
+      f.delete_ ();
+    }
+  };
+}
+
+#include <odb/post.hxx>