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

Requested reviews:
  Markos Zaharioudakis (markos-za)

For more details, see:
https://code.launchpad.net/~zorba-coders/zorba/markos-scratch/+merge/89017

Fixed bug 917923 (bug in copying outer var values into the eval dynamic context)
-- 
https://code.launchpad.net/~zorba-coders/zorba/markos-scratch/+merge/89017
Your team Zorba Coders is subscribed to branch lp:zorba.
=== modified file 'ChangeLog'
--- ChangeLog	2012-01-11 17:30:25 +0000
+++ ChangeLog	2012-01-18 12:21:28 +0000
@@ -7,6 +7,7 @@
     %ann:must-copy-input-nodes to be used by the no-copy optimization.
   * Caching of results for recursive functions with atomic parameter and return types.
   * Added %ann:cache and %ann:no-cache to enable or disable caching of results of functions with atomic parameter and return types.
+  * Fixed bug 917923 (bug in copying outer var values into the eval dynamic context)
   * Fixed bug 909126 (bug in cloning of var_expr)
   * Fixed bug in destruction of exit_catcher_expr
   * Types-related optimization for the comparison operators

=== modified file 'src/context/dynamic_context.cpp'
--- src/context/dynamic_context.cpp	2011-12-21 14:40:33 +0000
+++ src/context/dynamic_context.cpp	2012-01-18 12:21:28 +0000
@@ -400,11 +400,8 @@
   if (varid >= theVarValues.size() ||
       theVarValues[varid].theState == VarValue::undeclared)
   {
-    throw XQUERY_EXCEPTION(
-      err::XPDY0002,
-      ERROR_PARAMS( varname->getStringValue(), ZED( VariabledUndeclared ) ),
-      ERROR_LOC( loc )
-    );
+    RAISE_ERROR(err::XPDY0002, loc,
+    ERROR_PARAMS(varname->getStringValue(), ZED(VariabledUndeclared)));
   }
 
   VarValue& var = theVarValues[varid];
@@ -449,22 +446,16 @@
   if (varid >= theVarValues.size() ||
       theVarValues[varid].theState == VarValue::undeclared)
   {
-    zstring lVarName = static_context::var_name(varname.getp());
-    throw XQUERY_EXCEPTION(
-      err::XPDY0002,
-      ERROR_PARAMS( lVarName, ZED( VariabledUndeclared ) ),
-      ERROR_LOC( loc )
-    );
+    zstring varName = static_context::var_name(varname.getp());
+    RAISE_ERROR(err::XPDY0002, loc,
+    ERROR_PARAMS(varName, ZED(VariabledUndeclared)));
   }
 
   if (theVarValues[varid].theState == VarValue::declared)
   {
-    zstring lVarName = static_context::var_name(varname.getp());
-    throw XQUERY_EXCEPTION(
-      err::XPDY0002,
-      ERROR_PARAMS( lVarName, ZED( VariabledHasNoValue ) ),
-      ERROR_LOC( loc )
-    );
+    zstring varName = static_context::var_name(varname.getp());
+    RAISE_ERROR(err::XPDY0002, loc,
+    ERROR_PARAMS(varName, ZED(VariabledHasNoValue)));
   }
 
   const VarValue& var = theVarValues[varid];

=== modified file 'src/context/dynamic_context.h'
--- src/context/dynamic_context.h	2011-11-09 05:42:08 +0000
+++ src/context/dynamic_context.h	2012-01-18 12:21:28 +0000
@@ -51,22 +51,7 @@
 {
   friend class DebugIterator;
 
-protected:
-
-  struct dctx_value_t
-  {
-    typedef enum
-    {
-      no_val,
-      ext_func_param, // params that can be used by ext. functions
-      ext_func_param_typed 
-    } val_type_t;
-
-    val_type_t  type;
-    void*       func_param;
-  };
-
-
+public:
   struct VarValue
   {
     typedef enum
@@ -81,7 +66,7 @@
     {
       store::Item*     item;
       store::TempSeq*  temp_seq;
-    }          theValue;
+    }           theValue;
 
     ValueState  theState;
 
@@ -92,7 +77,28 @@
 
     VarValue(const VarValue& other);
 
-    ~VarValue(); 
+    ~VarValue();
+
+    bool isSet() const { return (theState == item || theState == temp_seq); }
+
+    bool hasItemValue() const { return (theState == item); }
+
+    bool hasSeqValue() const { return (theState == temp_seq); }
+  };
+
+protected:
+
+  struct dctx_value_t
+  {
+    typedef enum
+    {
+      no_val,
+      ext_func_param, // params that can be used by ext. functions
+      ext_func_param_typed 
+    } val_type_t;
+
+    val_type_t  type;
+    void*       func_param;
   };
 
   typedef HashMapZString<dctx_value_t> ValueMap;
@@ -140,6 +146,8 @@
 
   long get_implicit_timezone() const;
 
+  const std::vector<VarValue>& get_variables() const { return theVarValues; }
+
   void add_variable(ulong varid, store::Item_t& value);
 
   void add_variable(ulong varid, store::Iterator_t& value);

=== modified file 'src/runtime/eval/eval.cpp'
--- src/runtime/eval/eval.cpp	2012-01-11 17:30:25 +0000
+++ src/runtime/eval/eval.cpp	2012-01-18 12:21:28 +0000
@@ -222,38 +222,33 @@
 
   dynamic_context* outerDctx = evalDctx->getParent();
 
-  std::vector<var_expr_t> globalVars;
-  outerSctx->get_parent()->getVariables(globalVars, theForDebugger, true);
-  
-  FOR_EACH(std::vector<var_expr_t>, ite, globalVars)
+  const std::vector<dynamic_context::VarValue>& outerVars = outerDctx->get_variables();
+  csize numOuterVars = outerVars.size();
+
+  for (csize i = 0; i < numOuterVars; ++i)
   {
-    var_expr* globalVar = (*ite).getp();
-
-    ulong globalVarId = globalVar->get_unique_id();
-
-    if (globalVarId > maxOuterVarId)
-      maxOuterVarId = globalVarId;
+    const dynamic_context::VarValue& outerVar = outerVars[i];
+
+    if (!outerVar.isSet())
+      continue;
+
+    ulong outerVarId = static_cast<ulong>(i);
+
+    if (outerVarId > maxOuterVarId)
+      maxOuterVarId = outerVarId;
 
     store::Item_t itemValue;
     store::TempSeq_t seqValue;
 
-    if (!outerDctx->is_set_variable(globalVarId))
-      continue;
-
-    outerDctx->get_variable(globalVarId,
-                            globalVar->get_name(),
-                            loc,
-                            itemValue,
-                            seqValue);
-
-    if (itemValue != NULL)
+    if (outerVar.hasItemValue())
     {
-      evalDctx->add_variable(globalVarId, itemValue);
+      store::Item_t value = outerVar.theValue.item;
+      evalDctx->add_variable(outerVarId, value);
     }
     else
     {
-      store::Iterator_t iteValue = seqValue->getIterator();
-      evalDctx->add_variable(globalVarId, iteValue);
+      store::Iterator_t iteValue = outerVar.theValue.temp_seq->getIterator();
+      evalDctx->add_variable(outerVarId, iteValue);
     }
   }
 

=== added file 'test/rbkt/ExpQueryResults/zorba/eval/invoke1.xml.res'
--- test/rbkt/ExpQueryResults/zorba/eval/invoke1.xml.res	1970-01-01 00:00:00 +0000
+++ test/rbkt/ExpQueryResults/zorba/eval/invoke1.xml.res	2012-01-18 12:21:28 +0000
@@ -0,0 +1,1 @@
+20

=== added file 'test/rbkt/Queries/zorba/eval/invoke1.xq'
--- test/rbkt/Queries/zorba/eval/invoke1.xq	1970-01-01 00:00:00 +0000
+++ test/rbkt/Queries/zorba/eval/invoke1.xq	2012-01-18 12:21:28 +0000
@@ -0,0 +1,5 @@
+import module namespace invoke = 'http://www.zorba-xquery.com/modules/reflection';
+
+import module namespace foo1 = "http://foo1.com/"; at "invoke1_1.xqlib";
+
+invoke:invoke-s ( fn:QName ( 'http://foo1.com/', 'bar' ) )

=== added file 'test/rbkt/Queries/zorba/eval/invoke1_1.xqlib'
--- test/rbkt/Queries/zorba/eval/invoke1_1.xqlib	1970-01-01 00:00:00 +0000
+++ test/rbkt/Queries/zorba/eval/invoke1_1.xqlib	2012-01-18 12:21:28 +0000
@@ -0,0 +1,10 @@
+module namespace foo1 = "http://foo1.com/";;
+
+import module namespace foo2 = "http://foo2.com/"; at "invoke1_2.xqlib";
+
+declare variable $foo1:var := 2;
+
+declare function foo1:bar()
+{
+  $foo2:var
+};

=== added file 'test/rbkt/Queries/zorba/eval/invoke1_2.xqlib'
--- test/rbkt/Queries/zorba/eval/invoke1_2.xqlib	1970-01-01 00:00:00 +0000
+++ test/rbkt/Queries/zorba/eval/invoke1_2.xqlib	2012-01-18 12:21:28 +0000
@@ -0,0 +1,3 @@
+module namespace foo2 = "http://foo2.com/";;
+
+declare variable $foo2:var := 20;

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