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<?php
/** * Parses a function call. */
namespace PhpMyAdmin\SqlParser\Components;
use PhpMyAdmin\SqlParser\Component; use PhpMyAdmin\SqlParser\Parser; use PhpMyAdmin\SqlParser\Token; use PhpMyAdmin\SqlParser\TokensList;
/** * Parses a function call. * * @category Keywords * * @license https://www.gnu.org/licenses/gpl-2.0.txt GPL-2.0+ */ class FunctionCall extends Component { /** * The name of this function. * * @var string */ public $name;
/** * The list of parameters. * * @var ArrayObj */ public $parameters;
/** * Constructor. * * @param string $name the name of the function to be called * @param array|ArrayObj $parameters the parameters of this function */ public function __construct($name = null, $parameters = null) { $this->name = $name; if (is_array($parameters)) { $this->parameters = new ArrayObj($parameters); } elseif ($parameters instanceof ArrayObj) { $this->parameters = $parameters; } }
/** * @param Parser $parser the parser that serves as context * @param TokensList $list the list of tokens that are being parsed * @param array $options parameters for parsing * * @return FunctionCall */ public static function parse(Parser $parser, TokensList $list, array $options = array()) { $ret = new self();
/** * The state of the parser. * * Below are the states of the parser. * * 0 ----------------------[ name ]-----------------------> 1 * * 1 --------------------[ parameters ]-------------------> (END) * * @var int */ $state = 0;
for (; $list->idx < $list->count; ++$list->idx) { /** * Token parsed at this moment. * * @var Token */ $token = $list->tokens[$list->idx];
// End of statement. if ($token->type === Token::TYPE_DELIMITER) { break; }
// Skipping whitespaces and comments. if (($token->type === Token::TYPE_WHITESPACE) || ($token->type === Token::TYPE_COMMENT)) { continue; }
if ($state === 0) { $ret->name = $token->value; $state = 1; } elseif ($state === 1) { if (($token->type === Token::TYPE_OPERATOR) && ($token->value === '(')) { $ret->parameters = ArrayObj::parse($parser, $list); } break; } }
return $ret; }
/** * @param FunctionCall $component the component to be built * @param array $options parameters for building * * @return string */ public static function build($component, array $options = array()) { return $component->name . $component->parameters; } }
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