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VariableHolder.php
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VariableHolder.php
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<?php
namespace MediaWiki\Extension\AbuseFilter\Variables;
use MediaWiki\Extension\AbuseFilter\Parser\AFPData;
/**
* Mutable value object that holds a list of variables
*/
class VariableHolder {
/**
* @var (AFPData|LazyLoadedVariable)[]
*/
private $mVars = [];
/**
* Utility function to translate an array with shape [ varname => value ] into a self instance
*
* @param array $vars
* @return self
*/
public static function newFromArray( array $vars ): self {
$ret = new self();
foreach ( $vars as $var => $value ) {
$ret->setVar( $var, $value );
}
return $ret;
}
/**
* @param string $variable
* @param mixed $datum
*/
public function setVar( string $variable, $datum ): void {
$variable = strtolower( $variable );
if ( !( $datum instanceof AFPData || $datum instanceof LazyLoadedVariable ) ) {
$datum = AFPData::newFromPHPVar( $datum );
}
$this->mVars[$variable] = $datum;
}
/**
* Get all variables stored in this object
*
* @return (AFPData|LazyLoadedVariable)[]
*/
public function getVars(): array {
return $this->mVars;
}
/**
* @param string $variable
* @param string $method
* @param array $parameters
*/
public function setLazyLoadVar( string $variable, string $method, array $parameters ): void {
$placeholder = new LazyLoadedVariable( $method, $parameters );
$this->setVar( $variable, $placeholder );
}
/**
* Get a variable from the current object, or throw if not set
*
* @param string $varName The variable name
* @return AFPData|LazyLoadedVariable
*/
public function getVarThrow( string $varName ) {
$varName = strtolower( $varName );
if ( !$this->varIsSet( $varName ) ) {
throw new UnsetVariableException( $varName );
}
return $this->mVars[$varName];
}
/**
* A stronger version of self::getVarThrow that also asserts that the variable was computed
* @param string $varName
* @return AFPData
* @codeCoverageIgnore
*/
public function getComputedVariable( string $varName ): AFPData {
return $this->getVarThrow( $varName );
}
/**
* Merge any number of holders given as arguments into this holder.
*/
public function addHolders( self ...$holders ): void {
foreach ( $holders as $addHolder ) {
$this->mVars = array_merge( $this->mVars, $addHolder->mVars );
}
}
public function varIsSet( string $var ): bool {
return array_key_exists( $var, $this->mVars );
}
public function removeVar( string $varName ): void {
unset( $this->mVars[$varName] );
}
}

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Sun, Oct 4, 00:45 (3 w, 1 d ago)
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VariableHolder.php (2 KB)

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