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Declaration.php
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Declaration.php
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<?php
/**
* @file
* @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
*/
namespace Wikimedia\CSS\Objects;
use InvalidArgumentException;
use Wikimedia\CSS\Util;
/**
* Represent a CSS declaration
*/
class Declaration implements DeclarationOrAtRule {
/** @var int Line in the input where this declaration starts */
protected $line = -1;
/** @var int Position in the input where this declaration starts */
protected $pos = -1;
/** @var string */
protected $name;
/** @var ComponentValueList */
protected $value;
/** @var bool */
protected $important = false;
/**
* @param Token $token Token starting the declaration
*/
public function __construct( Token $token ) {
if ( $token->type() !== Token::T_IDENT ) {
throw new InvalidArgumentException(
"Declaration must begin with an ident token, got {$token->type()}"
);
}
[ $this->line, $this->pos ] = $token->getPosition();
$this->name = $token->value();
$this->value = new ComponentValueList();
}
public function __clone() {
$this->value = clone $this->value;
}
/**
* Get the position of this Declaration in the input stream
* @return array [ $line, $pos ]
*/
public function getPosition() {
return [ $this->line, $this->pos ];
}
/**
* Return the declaration's name
* @return string
*/
public function getName() {
return $this->name;
}
/**
* Return the declaration's value
* @return ComponentValueList
*/
public function getValue() {
return $this->value;
}
/**
* Return the declaration's 'important' flag
* @return bool
*/
public function getImportant() {
return $this->important;
}
/**
* Set the 'important' flag
* @param bool $flag
*/
public function setImportant( $flag ) {
$this->important = (bool)$flag;
}
/**
* @param string $function Function to call, toTokenArray() or toComponentValueArray()
* @return Token[]|ComponentValue[]
*/
private function toTokenOrCVArray( $function ) {
$ret = [];
$ret[] = new Token(
Token::T_IDENT,
[ 'value' => $this->name, 'position' => [ $this->line, $this->pos ] ]
);
$ret[] = $v = new Token( Token::T_COLON );
// Manually looping and appending turns out to be noticeably faster than array_merge.
foreach ( $this->value->$function() as $v ) {
$ret[] = $v;
}
if ( $this->important ) {
if ( !$v instanceof Token || $v->type() !== Token::T_WHITESPACE ) {
$ret[] = new Token( Token::T_WHITESPACE, [ 'significant' => false ] );
}
$ret[] = new Token( Token::T_DELIM, '!' );
$ret[] = new Token( Token::T_IDENT, 'important' );
}
return $ret;
}
/** @inheritDoc */
public function toTokenArray() {
return $this->toTokenOrCVArray( __FUNCTION__ );
}
/** @inheritDoc */
public function toComponentValueArray() {
return $this->toTokenOrCVArray( __FUNCTION__ );
}
public function __toString() {
return Util::stringify( $this );
}
}

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Tue, Aug 18, 20:50 (2 w, 20 h ago)
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Declaration.php (2 KB)

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