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doctrine2/lib/Doctrine/ORM/Query/AST/Node.php

98 lines
2.9 KiB
PHP

<?php
/*
* 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 MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM\Query\AST;
/**
* Abstract class of an AST node
*
*
* @link www.doctrine-project.org
* @since 2.0
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
*/
abstract class Node
{
/**
* Double-dispatch method, supposed to dispatch back to the walker.
*
* Implementation is not mandatory for all nodes.
*
* @param $walker
* @return string
* @throws ASTException
*/
public function dispatch($walker)
{
throw ASTException::noDispatchForNode($this);
}
/**
* Dumps the AST Node into a string representation for information purpose only
*
* @return string
*/
public function __toString()
{
return $this->dump($this);
}
public function dump($obj)
{
static $ident = 0;
$str = '';
if ($obj instanceof Node) {
$str .= get_class($obj) . '(' . PHP_EOL;
$props = get_object_vars($obj);
foreach ($props as $name => $prop) {
$ident += 4;
$str .= str_repeat(' ', $ident) . '"' . $name . '": '
. $this->dump($prop) . ',' . PHP_EOL;
$ident -= 4;
}
$str .= str_repeat(' ', $ident) . ')';
} else if (is_array($obj)) {
$ident += 4;
$str .= 'array(';
$some = false;
foreach ($obj as $k => $v) {
$str .= PHP_EOL . str_repeat(' ', $ident) . '"'
. $k . '" => ' . $this->dump($v) . ',';
$some = true;
}
$ident -= 4;
$str .= ($some ? PHP_EOL . str_repeat(' ', $ident) : '') . ')';
} else if (is_object($obj)) {
$str .= 'instanceof(' . get_class($obj) . ')';
} else {
$str .= var_export($obj, true);
}
return $str;
}
}