From bceb06251cdb572850b2e6e4d15cfb2ac32da417 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 19 Oct 2011 10:47:41 +0200
Subject: Add support for const data members

Const data members are automatically treated as readonly. New test:
const-member.
---
 common/readonly/driver.cxx | 67 +++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 63 insertions(+), 4 deletions(-)

(limited to 'common/readonly/driver.cxx')

diff --git a/common/readonly/driver.cxx b/common/readonly/driver.cxx
index 2ad40a1..0432c69 100644
--- a/common/readonly/driver.cxx
+++ b/common/readonly/driver.cxx
@@ -3,7 +3,9 @@
 // copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
 // license   : GNU GPL v2; see accompanying LICENSE file
 
-// Test readonly members/objects.
+// Test readonly members/objects. Also test that const members are
+// treated as readonly. For other const member tests, see the const-
+// member test.
 //
 
 #include <memory>   // std::auto_ptr
@@ -40,7 +42,7 @@ main (int argc, char* argv[])
       }
 
       o.ro++;
-      // const_cast<unsigned long&> (o.co)++;
+      const_cast<unsigned long&> (o.co)++;
       o.rw++;
 
       {
@@ -55,7 +57,7 @@ main (int argc, char* argv[])
         t.commit ();
       }
 
-      assert (o.ro == 1 && /*o.co == 1 &&*/ o.rw == 2);
+      assert (o.ro == 1 && o.co == 1 && o.rw == 2);
     }
 
     // Pointer.
@@ -74,6 +76,7 @@ main (int argc, char* argv[])
 
       delete p.ro;
       p.ro = p1.release ();
+      const_cast<pointer*&> (p.co) = p.ro;
       p.rw = p.ro;
 
       {
@@ -87,7 +90,7 @@ main (int argc, char* argv[])
         auto_ptr<pointer> p (db->load<pointer> (1));
         t.commit ();
 
-        assert (p->ro->id == 2 && p->rw->id == 3);
+        assert (p->ro->id == 2 && p->co->id == 2 && p->rw->id == 3);
       }
     }
 
@@ -104,10 +107,18 @@ main (int argc, char* argv[])
 
       o.ro.v++;
       o.ro.ro++;
+      const_cast<unsigned long&> (o.ro.co)++;
       o.ro.rw++;
 
+      value& co (const_cast<value&> (o.co));
+      co.v++;
+      co.ro++;
+      const_cast<unsigned long&> (co.co)++;
+      co.rw++;
+
       o.rw.v++;
       o.rw.ro++;
+      const_cast<unsigned long&> (o.rw.co)++;
       o.rw.rw++;
 
       o.v.v++;
@@ -126,10 +137,17 @@ main (int argc, char* argv[])
 
       assert (o.ro.v  == 1 &&
               o.ro.ro == 1 &&
+              o.ro.co == 1 &&
               o.ro.rw == 1 &&
 
+              o.co.v  == 1 &&
+              o.co.ro == 1 &&
+              o.co.co == 1 &&
+              o.co.rw == 1 &&
+
               o.rw.v  == 1 &&
               o.rw.ro == 1 &&
+              o.rw.co == 1 &&
               o.rw.rw == 2 &&
 
               o.v.v   == 1);
@@ -138,11 +156,17 @@ main (int argc, char* argv[])
     // Container.
     //
     {
+      typedef vector<unsigned long> ulongs;
+
       container o (1);
 
       o.ro.push_back (1);
       o.ro.push_back (2);
 
+      ulongs& co (const_cast<ulongs&> (o.co));
+      co.push_back (1);
+      co.push_back (2);
+
       o.rw.push_back (1);
       o.rw.push_back (2);
 
@@ -155,6 +179,9 @@ main (int argc, char* argv[])
       o.ro[0]++;
       o.ro.pop_back ();
 
+      co[0]++;
+      co.pop_back ();
+
       o.rw[0]++;
       o.rw.pop_back ();
 
@@ -171,6 +198,7 @@ main (int argc, char* argv[])
       }
 
       assert (o.ro.size () == 2 && o.ro[0] == 1 && o.ro[1] == 2 &&
+              o.co.size () == 2 && o.co[0] == 1 && o.co[1] == 2 &&
               o.rw.size () == 1 && o.rw[0] == 2);
     }
 
@@ -221,6 +249,37 @@ main (int argc, char* argv[])
 
       assert (rw_o.sv == 1 && rw_o.rw_sv == 2);
     }
+
+    // Readonly object.
+    //
+    {
+      wrapper o (1, 1);
+
+      {
+        transaction t (db->begin ());
+        db->persist (o);
+        t.commit ();
+      }
+
+      *o.pl = 2;
+      *o.cpl = 2;
+      o.pcl.reset (new unsigned long (2));
+      const_cast<unsigned long&> (*o.cpcl) = 2;
+
+      {
+        transaction t (db->begin ());
+        db->update (o);
+        t.commit ();
+      }
+
+      {
+        transaction t (db->begin ());
+        db->load<wrapper> (1, o);
+        t.commit ();
+      }
+
+      assert (*o.pl == 2 && *o.cpl == 2 && *o.pcl == 2 && *o.cpcl == 1);
+    }
   }
   catch (const odb::exception& e)
   {
-- 
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