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<?php
/**
* Routine utilities.
*
* @package SqlParser
* @subpackage Utils
*/
namespace SqlParser\Utils;
use SqlParser\Lexer;
use SqlParser\Parser;
use SqlParser\Components\DataType;
use SqlParser\Components\ParameterDefinition;
use SqlParser\Statements\CreateStatement;
/**
* Routine utilities.
*
* @category Routines
* @package SqlParser
* @subpackage Utils
* @author Dan Ungureanu <udan1107@gmail.com>
* @license http://opensource.org/licenses/GPL-2.0 GNU Public License
*/
class Routine
{
/**
* Parses a parameter of a routine.
*
* @param string $param Parameter's definition.
*
* @return array
*/
public static function getReturnType($param)
{
$lexer = new Lexer($param);
// A dummy parser is used for error reporting.
$type = DataType::parse(new Parser(), $lexer->list);
if ($type === null) {
return array('', '', '', '', '');
}
$options = array();
foreach ($type->options->options as $opt) {
$options[] = is_string($opt) ? $opt : $opt['value'];
}
return array(
'',
'',
$type->name,
implode(',', $type->parameters),
implode(' ', $options)
);
}
/**
* Parses a parameter of a routine.
*
* @param string $param Parameter's definition.
*
* @return array
*/
public static function getParameter($param)
{
$lexer = new Lexer('(' . $param . ')');
// A dummy parser is used for error reporting.
$param = ParameterDefinition::parse(new Parser(), $lexer->list);
if (empty($param[0])) {
return array('', '', '', '', '');
}
$param = $param[0];
$options = array();
foreach ($param->type->options->options as $opt) {
$options[] = is_string($opt) ? $opt : $opt['value'];
}
return array(
empty($param->inOut) ? '' : $param->inOut,
$param->name,
$param->type->name,
implode(',', $param->type->parameters),
implode(' ', $options)
);
}
/**
* Gets the parameters of a routine from the parse tree.
*
* @param CreateStatement $statement The statement to be processed.
*
* @return array
*/
public static function getParameters($statement)
{
$retval = array(
'num' => 0,
'dir' => array(),
'name' => array(),
'type' => array(),
'length' => array(),
'length_arr' => array(),
'opts' => array(),
);
if (!empty($statement->parameters)) {
$idx = 0;
foreach ($statement->parameters as $param) {
$retval['dir'][$idx] = $param->inOut;
$retval['name'][$idx] = $param->name;
$retval['type'][$idx] = $param->type->name;
$retval['length'][$idx] = implode(',', $param->type->parameters);
$retval['length_arr'][$idx] = $param->type->parameters;
$retval['opts'][$idx] = array();
foreach ($param->type->options->options as $opt) {
$retval['opts'][$idx][] = is_string($opt) ?
$opt : $opt['value'];
}
$retval['opts'][$idx] = implode(' ', $retval['opts'][$idx]);
++$idx;
}
$retval['num'] = $idx;
}
return $retval;
}
}