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