Split MySQL code generator into common and db-specific parts

The common part (in relational/) still has some MySQL-specific parts.
Also, add the notion of the current context which is used to avoid
explicitly passing the context object to every generator's c-tor.

1 files changed, 54 insertions, 0 deletions

diff --git a/odb/relational/context.cxx b/odb/relational/context.cxx
new file mode 100644
index 0000000..e7a4f21
--- /dev/null
+++ b/odb/relational/context.cxx
@@ -0,0 +1,54 @@
+// file      : odb/relational/context.cxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+// license   : GNU GPL v3; see accompanying LICENSE file
+
+#include <odb/relational/context.hxx>
+
+using namespace std;
+
+namespace relational
+{
+  context::
+  context ()
+      : data_ (current ().data_)
+  {
+  }
+
+  context::
+  context (data* d)
+      : data_ (d)
+  {
+  }
+
+  bool context::
+  grow_impl (semantics::class_&)
+  {
+    return false;
+  }
+
+  bool context::
+  grow_impl (semantics::data_member&)
+  {
+    return false;
+  }
+
+  bool context::
+  grow_impl (semantics::data_member&,
+             semantics::type&,
+             string const&)
+  {
+    return false;
+  }
+
+  string context::
+  quote_id_impl (string const& id) const
+  {
+    string r;
+    r.reserve (id.size ());
+    r += '"';
+    r += id;
+    r += '"';
+    return r;
+  }
+}