%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* SCSSPHP
*
* @copyright 2012-2020 Leaf Corcoran
*
* @license http://opensource.org/licenses/MIT MIT
*
* @link http://scssphp.github.io/scssphp
*/
namespace ScssPhp\ScssPhp\Ast\Sass\Statement;
use ScssPhp\ScssPhp\Ast\Sass\Statement;
use ScssPhp\ScssPhp\SourceSpan\FileSpan;
use ScssPhp\ScssPhp\Visitor\StatementVisitor;
/**
* An `@if` rule.
*
* This conditionally executes a block of code.
*
* @internal
*/
final class IfRule implements Statement
{
/**
* @var IfClause[]
* @readonly
*/
private $clauses;
/**
* @var ElseClause|null
* @readonly
*/
private $lastClause;
/**
* @var FileSpan
* @readonly
*/
private $span;
/**
* @param IfClause[] $clauses
*/
public function __construct(array $clauses, FileSpan $span, ?ElseClause $lastClause = null)
{
$this->clauses = $clauses;
$this->span = $span;
$this->lastClause = $lastClause;
}
/**
* The `@if` and `@else if` clauses.
*
* The first clause whose expression evaluates to `true` will have its
* statements executed. If no expression evaluates to `true`, `lastClause`
* will be executed if it's not `null`.
*
* @return IfClause[]
*/
public function getClauses(): array
{
return $this->clauses;
}
/**
* The final, unconditional `@else` clause.
*
* This is `null` if there is no unconditional `@else`.
*
* @return ElseClause|null
*/
public function getLastClause(): ?ElseClause
{
return $this->lastClause;
}
public function getSpan(): FileSpan
{
return $this->span;
}
public function accept(StatementVisitor $visitor)
{
return $visitor->visitIfRule($this);
}
public function __toString(): string
{
$parts = [];
foreach ($this->clauses as $index => $clause) {
$parts[] = ($index === 0 ? '@if ' : '@else if ') . $clause->getExpression() . '{' . implode(' ', $clause->getChildren()) . '}';
}
if ($this->lastClause !== null) {
$parts[] = $this->lastClause;
}
return implode(' ', $parts);
}
}
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