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<?php /** * The definition of a parameter of a function or procedure. */ declare(strict_types=1); namespace PhpMyAdmin\SqlParser\Components; use PhpMyAdmin\SqlParser\Component; use PhpMyAdmin\SqlParser\Context; use PhpMyAdmin\SqlParser\Parser; use PhpMyAdmin\SqlParser\Token; use PhpMyAdmin\SqlParser\TokensList; use function implode; use function is_array; use function trim; /** * The definition of a parameter of a function or procedure. */ class ParameterDefinition extends Component { /** * The name of the new column. * * @var string */ public $name; /** * Parameter's direction (IN, OUT or INOUT). * * @var string */ public $inOut; /** * The data type of thew new column. * * @var DataType */ public $type; /** * @param string $name parameter's name * @param string $inOut parameter's directional type (IN / OUT or None) * @param DataType $type parameter's type */ public function __construct($name = null, $inOut = null, $type = null) { $this->name = $name; $this->inOut = $inOut; $this->type = $type; } /** * @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 ParameterDefinition[] */ public static function parse(Parser $parser, TokensList $list, array $options = []) { $ret = []; $expr = new static(); /** * The state of the parser. * * Below are the states of the parser. * * 0 -----------------------[ ( ]------------------------> 1 * * 1 ----------------[ IN / OUT / INOUT ]----------------> 1 * 1 ----------------------[ name ]----------------------> 2 * * 2 -------------------[ data type ]--------------------> 3 * * 3 ------------------------[ , ]-----------------------> 1 * 3 ------------------------[ ) ]-----------------------> (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) { if (($token->type === Token::TYPE_OPERATOR) && ($token->value === '(')) { $state = 1; } continue; } elseif ($state === 1) { if (($token->value === 'IN') || ($token->value === 'OUT') || ($token->value === 'INOUT')) { $expr->inOut = $token->value; ++$list->idx; } elseif ($token->value === ')') { ++$list->idx; break; } else { $expr->name = $token->value; $state = 2; } } elseif ($state === 2) { $expr->type = DataType::parse($parser, $list); $state = 3; } elseif ($state === 3) { $ret[] = $expr; $expr = new static(); if ($token->value === ',') { $state = 1; } elseif ($token->value === ')') { ++$list->idx; break; } } } // Last iteration was not saved. if (isset($expr->name) && ($expr->name !== '')) { $ret[] = $expr; } --$list->idx; return $ret; } /** * @param ParameterDefinition[] $component the component to be built * @param array $options parameters for building * * @return string */ public static function build($component, array $options = []) { if (is_array($component)) { return '(' . implode(', ', $component) . ')'; } $tmp = ''; if (! empty($component->inOut)) { $tmp .= $component->inOut . ' '; } return trim( $tmp . Context::escape($component->name) . ' ' . $component->type ); } }