diff -r 000000000000 -r 7f95f8617b0b vendor/doctrine/lib/Doctrine/ORM/Query/TreeWalkerAdapter.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/doctrine/lib/Doctrine/ORM/Query/TreeWalkerAdapter.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,437 @@
+<?php
+/*
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\ORM\Query;
+
+/**
+ * An adapter implementation of the TreeWalker interface. The methods in this class
+ * are empty. This class exists as convenience for creating tree walkers.
+ * 
+ * @author Roman Borschel <roman@code-factory.org>
+ * @since 2.0
+ */
+abstract class TreeWalkerAdapter implements TreeWalker
+{
+    private $_query;
+    private $_parserResult;
+    private $_queryComponents;
+    
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct($query, $parserResult, array $queryComponents)
+    {
+        $this->_query = $query;
+        $this->_parserResult = $parserResult;
+        $this->_queryComponents = $queryComponents;
+    }
+
+    /**
+     * @return array
+     */
+    protected function _getQueryComponents()
+    {
+        return $this->_queryComponents;
+    }
+
+    /**
+     * Retrieve Query Instance reponsible for the current walkers execution.
+     *
+     * @return Doctrine\ORM\Query
+     */
+    protected function _getQuery()
+    {
+        return $this->_query;
+    }
+
+    /**
+     * Retrieve ParserResult
+     *
+     * @return Doctrine\ORM\Query\ParserResult
+     */
+    protected function _getParserResult()
+    {
+        return $this->_parserResult;
+    }
+    
+    /**
+     * Walks down a SelectStatement AST node, thereby generating the appropriate SQL.
+     *
+     * @return string The SQL.
+     */
+    public function walkSelectStatement(AST\SelectStatement $AST) {}
+
+    /**
+     * Walks down a SelectClause AST node, thereby generating the appropriate SQL.
+     *
+     * @return string The SQL.
+     */
+    public function walkSelectClause($selectClause) {}
+
+    /**
+     * Walks down a FromClause AST node, thereby generating the appropriate SQL.
+     *
+     * @return string The SQL.
+     */
+    public function walkFromClause($fromClause) {}
+
+    /**
+     * Walks down a FunctionNode AST node, thereby generating the appropriate SQL.
+     *
+     * @return string The SQL.
+     */
+    public function walkFunction($function) {}
+
+    /**
+     * Walks down an OrderByClause AST node, thereby generating the appropriate SQL.
+     *
+     * @param OrderByClause
+     * @return string The SQL.
+     */
+    public function walkOrderByClause($orderByClause) {}
+
+    /**
+     * Walks down an OrderByItem AST node, thereby generating the appropriate SQL.
+     *
+     * @param OrderByItem
+     * @return string The SQL.
+     */
+    public function walkOrderByItem($orderByItem) {}
+
+    /**
+     * Walks down a HavingClause AST node, thereby generating the appropriate SQL.
+     *
+     * @param HavingClause
+     * @return string The SQL.
+     */
+    public function walkHavingClause($havingClause) {}
+
+    /**
+     * Walks down a JoinVariableDeclaration AST node and creates the corresponding SQL.
+     *
+     * @param JoinVariableDeclaration $joinVarDecl
+     * @return string The SQL.
+     */
+    public function walkJoinVariableDeclaration($joinVarDecl) {}
+
+    /**
+     * Walks down a SelectExpression AST node and generates the corresponding SQL.
+     *
+     * @param SelectExpression $selectExpression
+     * @return string The SQL.
+     */
+    public function walkSelectExpression($selectExpression) {}
+
+    /**
+     * Walks down a QuantifiedExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param QuantifiedExpression
+     * @return string The SQL.
+     */
+    public function walkQuantifiedExpression($qExpr) {}
+
+    /**
+     * Walks down a Subselect AST node, thereby generating the appropriate SQL.
+     *
+     * @param Subselect
+     * @return string The SQL.
+     */
+    public function walkSubselect($subselect) {}
+
+    /**
+     * Walks down a SubselectFromClause AST node, thereby generating the appropriate SQL.
+     *
+     * @param SubselectFromClause
+     * @return string The SQL.
+     */
+    public function walkSubselectFromClause($subselectFromClause) {}
+
+    /**
+     * Walks down a SimpleSelectClause AST node, thereby generating the appropriate SQL.
+     *
+     * @param SimpleSelectClause
+     * @return string The SQL.
+     */
+    public function walkSimpleSelectClause($simpleSelectClause) {}
+
+    /**
+     * Walks down a SimpleSelectExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param SimpleSelectExpression
+     * @return string The SQL.
+     */
+    public function walkSimpleSelectExpression($simpleSelectExpression) {}
+
+    /**
+     * Walks down an AggregateExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param AggregateExpression
+     * @return string The SQL.
+     */
+    public function walkAggregateExpression($aggExpression) {}
+
+    /**
+     * Walks down a GroupByClause AST node, thereby generating the appropriate SQL.
+     *
+     * @param GroupByClause
+     * @return string The SQL.
+     */
+    public function walkGroupByClause($groupByClause) {}
+
+    /**
+     * Walks down a GroupByItem AST node, thereby generating the appropriate SQL.
+     *
+     * @param GroupByItem
+     * @return string The SQL.
+     */
+    public function walkGroupByItem(AST\PathExpression $pathExpr) {}
+
+    /**
+     * Walks down an UpdateStatement AST node, thereby generating the appropriate SQL.
+     *
+     * @param UpdateStatement
+     * @return string The SQL.
+     */
+    public function walkUpdateStatement(AST\UpdateStatement $AST) {}
+
+    /**
+     * Walks down a DeleteStatement AST node, thereby generating the appropriate SQL.
+     *
+     * @param DeleteStatement
+     * @return string The SQL.
+     */
+    public function walkDeleteStatement(AST\DeleteStatement $AST) {}
+
+    /**
+     * Walks down a DeleteClause AST node, thereby generating the appropriate SQL.
+     *
+     * @param DeleteClause
+     * @return string The SQL.
+     */
+    public function walkDeleteClause(AST\DeleteClause $deleteClause) {}
+
+    /**
+     * Walks down an UpdateClause AST node, thereby generating the appropriate SQL.
+     *
+     * @param UpdateClause
+     * @return string The SQL.
+     */
+    public function walkUpdateClause($updateClause) {}
+
+    /**
+     * Walks down an UpdateItem AST node, thereby generating the appropriate SQL.
+     *
+     * @param UpdateItem
+     * @return string The SQL.
+     */
+    public function walkUpdateItem($updateItem) {}
+
+    /**
+     * Walks down a WhereClause AST node, thereby generating the appropriate SQL.
+     *
+     * @param WhereClause
+     * @return string The SQL.
+     */
+    public function walkWhereClause($whereClause) {}
+
+    /**
+     * Walks down a ConditionalExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param ConditionalExpression
+     * @return string The SQL.
+     */
+    public function walkConditionalExpression($condExpr) {}
+
+    /**
+     * Walks down a ConditionalTerm AST node, thereby generating the appropriate SQL.
+     *
+     * @param ConditionalTerm
+     * @return string The SQL.
+     */
+    public function walkConditionalTerm($condTerm) {}
+
+    /**
+     * Walks down a ConditionalFactor AST node, thereby generating the appropriate SQL.
+     *
+     * @param ConditionalFactor
+     * @return string The SQL.
+     */
+    public function walkConditionalFactor($factor) {}
+
+    /**
+     * Walks down a ConditionalPrimary AST node, thereby generating the appropriate SQL.
+     *
+     * @param ConditionalPrimary
+     * @return string The SQL.
+     */
+    public function walkConditionalPrimary($primary) {}
+
+    /**
+     * Walks down an ExistsExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param ExistsExpression
+     * @return string The SQL.
+     */
+    public function walkExistsExpression($existsExpr) {}
+    
+    /**
+     * Walks down a CollectionMemberExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param CollectionMemberExpression
+     * @return string The SQL.
+     */
+    public function walkCollectionMemberExpression($collMemberExpr) {}
+
+    /**
+     * Walks down an EmptyCollectionComparisonExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param EmptyCollectionComparisonExpression
+     * @return string The SQL.
+     */
+    public function walkEmptyCollectionComparisonExpression($emptyCollCompExpr) {}
+
+    /**
+     * Walks down a NullComparisonExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param NullComparisonExpression
+     * @return string The SQL.
+     */
+    public function walkNullComparisonExpression($nullCompExpr) {}
+
+    /**
+     * Walks down an InExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param InExpression
+     * @return string The SQL.
+     */
+    public function walkInExpression($inExpr) {}
+
+    /**
+     * Walks down an InstanceOfExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param InstanceOfExpression
+     * @return string The SQL.
+     */
+    function walkInstanceOfExpression($instanceOfExpr) {}
+
+    /**
+     * Walks down a literal that represents an AST node, thereby generating the appropriate SQL.
+     *
+     * @param mixed
+     * @return string The SQL.
+     */
+    public function walkLiteral($literal) {}
+
+    /**
+     * Walks down a BetweenExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param BetweenExpression
+     * @return string The SQL.
+     */
+    public function walkBetweenExpression($betweenExpr) {}
+
+    /**
+     * Walks down a LikeExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param LikeExpression
+     * @return string The SQL.
+     */
+    public function walkLikeExpression($likeExpr) {}
+
+    /**
+     * Walks down a StateFieldPathExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param StateFieldPathExpression
+     * @return string The SQL.
+     */
+    public function walkStateFieldPathExpression($stateFieldPathExpression) {}
+
+    /**
+     * Walks down a ComparisonExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param ComparisonExpression
+     * @return string The SQL.
+     */
+    public function walkComparisonExpression($compExpr) {}
+
+    /**
+     * Walks down an InputParameter AST node, thereby generating the appropriate SQL.
+     *
+     * @param InputParameter
+     * @return string The SQL.
+     */
+    public function walkInputParameter($inputParam) {}
+
+    /**
+     * Walks down an ArithmeticExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param ArithmeticExpression
+     * @return string The SQL.
+     */
+    public function walkArithmeticExpression($arithmeticExpr) {}
+
+    /**
+     * Walks down an ArithmeticTerm AST node, thereby generating the appropriate SQL.
+     *
+     * @param mixed
+     * @return string The SQL.
+     */
+    public function walkArithmeticTerm($term) {}
+
+    /**
+     * Walks down a StringPrimary that represents an AST node, thereby generating the appropriate SQL.
+     *
+     * @param mixed
+     * @return string The SQL.
+     */
+    public function walkStringPrimary($stringPrimary) {}
+
+    /**
+     * Walks down an ArithmeticFactor that represents an AST node, thereby generating the appropriate SQL.
+     *
+     * @param mixed
+     * @return string The SQL.
+     */
+    public function walkArithmeticFactor($factor) {}
+
+    /**
+     * Walks down an SimpleArithmeticExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param SimpleArithmeticExpression
+     * @return string The SQL.
+     */
+    public function walkSimpleArithmeticExpression($simpleArithmeticExpr) {}
+
+    /**
+     * Walks down an PathExpression AST node, thereby generating the appropriate SQL.
+     *
+     * @param mixed
+     * @return string The SQL.
+     */
+    public function walkPathExpression($pathExpr) {}
+    
+    /**
+     * Gets an executor that can be used to execute the result of this walker.
+     * 
+     * @return AbstractExecutor
+     */
+    public function getExecutor($AST) {}
+}
\ No newline at end of file