Markos Zaharioudakis has proposed merging lp:~zorba-coders/zorba/markos-scratch 
into lp:zorba.

Commit message:
"Fixed bug #1190407 (wrong rewrite of if-then-else return clause in case of 
general flwor)

Requested reviews:
  Markos Zaharioudakis (markos-za)

For more details, see:
https://code.launchpad.net/~zorba-coders/zorba/markos-scratch/+merge/169335

"Fixed bug #1190407 (wrong rewrite of if-then-else return clause in case of 
general flwor)
-- 
https://code.launchpad.net/~zorba-coders/zorba/markos-scratch/+merge/169335
Your team Zorba Coders is subscribed to branch lp:zorba.
=== modified file 'ChangeLog'
--- ChangeLog	2013-06-13 01:21:36 +0000
+++ ChangeLog	2013-06-14 04:35:36 +0000
@@ -31,6 +31,8 @@
   * Fixed bug #1188100 (regex issues with 'q' flag in fn:tokenize)
   * Fixed invalid memory access error occuring during sequence type matching
     for user-defined types.
+  * Fixed bug #1190407 (wrong rewrite of if-then-else return clause in case
+    of general flwor)
   * jn:members function takes item()* as aparameter (instead of item())
   * jn:keys function takes item()* as aparameter (instead of item())
   * Fixed bug #1189996 (Relocate some public API headers to util)

=== modified file 'src/compiler/rewriter/rules/flwor_rules.cpp'
--- src/compiler/rewriter/rules/flwor_rules.cpp	2013-05-24 16:34:11 +0000
+++ src/compiler/rewriter/rules/flwor_rules.cpp	2013-06-14 04:35:36 +0000
@@ -1028,63 +1028,7 @@
         !elseExpr->isNonDiscardable() &&
         elseExpr->get_return_type()->is_empty())
     {
-      if (flwor->is_general())
-      {
-        flwor->add_where(condExpr);
-      }
-      else
-      {
-        expr* whereExpr = flwor->get_where();
-
-        if (whereExpr == NULL)
-        {
-          flwor->set_where(condExpr);
-        }
-        else if (whereExpr->get_function_kind() == FunctionConsts::OP_AND_N)
-        {
-          fo_expr* foWhereExpr = static_cast<fo_expr*>(whereExpr);
-
-          if (condExpr->get_function_kind() == FunctionConsts::OP_AND_N)
-          {
-            fo_expr* foCondExpr = static_cast<fo_expr*>(condExpr);
-
-            for (csize i = 0; i < foCondExpr->num_args(); ++i)
-            {
-              foWhereExpr->add_arg(foCondExpr->get_arg(i));
-              expr_tools::fix_annotations(foWhereExpr, foCondExpr->get_arg(i));
-            }
-          }
-          else
-          {
-            foWhereExpr->add_arg(condExpr);
-            expr_tools::fix_annotations(foWhereExpr, condExpr);
-          }
-        }
-        else if (condExpr->get_function_kind() == FunctionConsts::OP_AND_N)
-        {
-          fo_expr* foCondExpr = static_cast<fo_expr*>(condExpr);
-          foCondExpr->add_arg(whereExpr);
-          expr_tools::fix_annotations(foCondExpr, whereExpr);
-
-          flwor->set_where(condExpr);
-        }
-        else
-        {
-          expr* newWhereExpr = rCtx.theEM->
-          create_fo_expr(sctx,
-                         udf,
-                         whereExpr->get_loc(),
-                         BUILTIN_FUNC(OP_AND_N),
-                         whereExpr,
-                         condExpr);
-
-          expr_tools::fix_annotations(newWhereExpr, whereExpr);
-          expr_tools::fix_annotations(newWhereExpr, condExpr);
-
-          flwor->set_where(newWhereExpr);
-        }
-      }
-
+      flwor->add_where(condExpr);
       flwor->set_return_expr(thenExpr);
       modified = true;
     }

=== modified file 'src/runtime/sequences/sequences_impl.cpp'
--- src/runtime/sequences/sequences_impl.cpp	2013-06-11 23:38:49 +0000
+++ src/runtime/sequences/sequences_impl.cpp	2013-06-14 04:35:36 +0000
@@ -1838,8 +1838,6 @@
   store::SchemaTypeCode lResultType;
   store::SchemaTypeCode lTmpType;
 
-  const TypeManager* tm = theSctx->get_typemanager();
-
   PlanIteratorState* state;
   DEFAULT_STACK_INIT(PlanIteratorState, state, planState);
 

=== added file 'test/rbkt/ExpQueryResults/zorba/gflwor/gflwor09.xml.res'
=== added file 'test/rbkt/Queries/zorba/gflwor/gflwor09.xq'
--- test/rbkt/Queries/zorba/gflwor/gflwor09.xq	1970-01-01 00:00:00 +0000
+++ test/rbkt/Queries/zorba/gflwor/gflwor09.xq	2013-06-14 04:35:36 +0000
@@ -0,0 +1,6 @@
+let $seq := for $i in 1 to 10 return <foo attribute="{$i}">{$i}</foo>
+for $child in $seq[1]/node()
+where not(fn:empty($child/text()))
+let $name := fn:name($child)
+return
+  if (fn:count($seq/node()[fn:name(.) = $name]) eq 10) then $name else ()

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