From 8e046e3ea7e88f872205c2b65cb7f9b86aaabd93 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 26 Apr 2012 11:29:05 +0200
Subject: Make session optional

---
 odb/pragma.cxx | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

(limited to 'odb/pragma.cxx')

diff --git a/odb/pragma.cxx b/odb/pragma.cxx
index 698551a..e2dc4cc 100644
--- a/odb/pragma.cxx
+++ b/odb/pragma.cxx
@@ -493,6 +493,17 @@ check_spec_decl_type (tree d,
       return false;
     }
   }
+  else if (p == "session")
+  {
+    // Session can be used only for namespaces and objects.
+    //
+    if (tc != NAMESPACE_DECL && !CLASS_TYPE_P (d))
+    {
+      error (l) << "name '" << name << "' in db pragma " << p << " does "
+                << "not refer to a namespace or class" << endl;
+      return false;
+    }
+  }
   else if (p == "schema")
   {
     // For now schema can be used only for namespaces and objects.
@@ -727,6 +738,42 @@ handle_pragma (cpp_reader* reader,
 
     tt = pragma_lex (&t);
   }
+  else if (p == "session")
+  {
+    // session
+    // session (true|false)
+    //
+
+    // Make sure we've got the correct declaration type.
+    //
+    if (decl != 0 && !check_spec_decl_type (decl, decl_name, p, loc))
+      return;
+
+    tt = pragma_lex (&t);
+
+    if (tt == CPP_OPEN_PAREN)
+    {
+      tt = pragma_lex (&t);
+
+      string s;
+      if (tt != CPP_NAME ||
+          ((s = IDENTIFIER_POINTER (t)) != "true" && s != "false"))
+      {
+        error () << "true or false expected in db pragma " << p << endl;
+        return;
+      }
+
+      tt = pragma_lex (&t);
+      if (tt != CPP_CLOSE_PAREN)
+      {
+        error () << "')' expected at the end of db pragma " << p << endl;
+        return;
+      }
+
+      val = (s == "true");
+      tt = pragma_lex (&t);
+    }
+  }
   else if (p == "schema")
   {
     // schema (<name>)
-- 
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