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- <?php
- /**
- * Defines a component that is later extended to parse specialized components or
- * keywords.
- *
- * There is a small difference between *Component and *Keyword classes: usually,
- * *Component parsers can be reused in multiple situations and *Keyword parsers
- * count on the *Component classes to do their job.
- */
- declare(strict_types=1);
- namespace PhpMyAdmin\SqlParser;
- use Exception;
- /**
- * A component (of a statement) is a part of a statement that is common to
- * multiple query types.
- */
- abstract class Component
- {
- /**
- * Parses the tokens contained in the given list in the context of the given
- * parser.
- *
- * @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 mixed
- *
- * @throws Exception not implemented yet.
- */
- public static function parse(
- Parser $parser,
- TokensList $list,
- array $options = []
- ) {
- // This method should be abstract, but it can't be both static and
- // abstract.
- throw new Exception(Translator::gettext('Not implemented yet.'));
- }
- /**
- * Builds the string representation of a component of this type.
- *
- * In other words, this function represents the inverse function of
- * `static::parse`.
- *
- * @param mixed $component the component to be built
- * @param array $options parameters for building
- *
- * @return mixed
- *
- * @throws Exception not implemented yet.
- */
- public static function build($component, array $options = [])
- {
- // This method should be abstract, but it can't be both static and
- // abstract.
- throw new Exception(Translator::gettext('Not implemented yet.'));
- }
- /**
- * Builds the string representation of a component of this type.
- *
- * @see static::build
- *
- * @return string
- */
- public function __toString()
- {
- return static::build($this);
- }
- }
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