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/header.cxx b/odb/relational/header.cxx
new file mode 100644
index 0000000..f8529f4
--- /dev/null
+++ b/odb/relational/header.cxx
@@ -0,0 +1,54 @@
+// file      : odb/relational/header.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/header.hxx>
+#include <odb/relational/generate.hxx>
+
+using namespace std;
+
+namespace relational
+{
+  namespace header
+  {
+    void
+    generate ()
+    {
+      context ctx;
+      ostream& os (ctx.os);
+      options const& ops (ctx.options);
+
+      traversal::unit unit;
+      traversal::defines unit_defines;
+      traversal::namespace_ ns;
+      instance<class_> c;
+
+      unit >> unit_defines >> ns;
+      unit_defines >> c;
+
+      traversal::defines ns_defines;
+
+      ns >> ns_defines >> ns;
+      ns_defines >> c;
+
+      os << "#include <odb/mysql/version.hxx>" << endl
+         << "#include <odb/mysql/forward.hxx>" << endl
+         << "#include <odb/mysql/mysql-types.hxx>" << endl;
+
+      if (ops.generate_query ())
+        os << "#include <odb/mysql/query.hxx>" << endl;
+
+      os << endl
+         << "#include <odb/details/buffer.hxx>" << endl
+         << endl;
+
+      os << "namespace odb"
+         << "{";
+
+      unit.dispatch (ctx.unit);
+
+      os << "}";
+    }
+  }
+}