Current File : //home2/vacivi36/code/vendor/rector/rector/rules/Php80/NodeFactory/MatchFactory.php
<?php
declare (strict_types=1);
namespace Rector\Php80\NodeFactory;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\ArrayDimFetch;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\Match_;
use PhpParser\Node\Expr\Throw_;
use PhpParser\Node\Stmt;
use PhpParser\Node\Stmt\Return_;
use PhpParser\Node\Stmt\Throw_ as ThrowsStmt;
use Rector\Php80\Enum\MatchKind;
use Rector\Php80\NodeAnalyzer\MatchSwitchAnalyzer;
use Rector\Php80\ValueObject\CondAndExpr;
use Rector\Php80\ValueObject\MatchResult;
final class MatchFactory
{
/**
* @readonly
* @var \Rector\Php80\NodeFactory\MatchArmsFactory
*/
private $matchArmsFactory;
/**
* @readonly
* @var \Rector\Php80\NodeAnalyzer\MatchSwitchAnalyzer
*/
private $matchSwitchAnalyzer;
public function __construct(\Rector\Php80\NodeFactory\MatchArmsFactory $matchArmsFactory, MatchSwitchAnalyzer $matchSwitchAnalyzer)
{
$this->matchArmsFactory = $matchArmsFactory;
$this->matchSwitchAnalyzer = $matchSwitchAnalyzer;
}
/**
* @param CondAndExpr[] $condAndExprs
*/
public function createFromCondAndExprs(Expr $condExpr, array $condAndExprs, ?Stmt $nextStmt) : ?MatchResult
{
$shouldRemoteNextStmt = \false;
// is default value missing? maybe it can be found in next stmt
if (!$this->matchSwitchAnalyzer->hasCondsAndExprDefaultValue($condAndExprs)) {
// 1. is followed by throws stmts?
if ($nextStmt instanceof ThrowsStmt) {
$throw = new Throw_($nextStmt->expr);
$condAndExprs[] = new CondAndExpr([], $throw, MatchKind::RETURN);
$shouldRemoteNextStmt = \true;
}
// 2. is followed by return expr
// implicit return default after switch
if ($nextStmt instanceof Return_ && $nextStmt->expr instanceof Expr) {
// @todo this should be improved
$expr = $this->resolveAssignVar($condAndExprs);
if ($expr instanceof ArrayDimFetch) {
return null;
}
$shouldRemoteNextStmt = !$expr instanceof Expr;
$condAndExprs[] = new CondAndExpr([], $nextStmt->expr, MatchKind::RETURN);
}
}
$matchArms = $this->matchArmsFactory->createFromCondAndExprs($condAndExprs);
$match = new Match_($condExpr, $matchArms);
return new MatchResult($match, $shouldRemoteNextStmt);
}
/**
* @param CondAndExpr[] $condAndExprs
*/
private function resolveAssignVar(array $condAndExprs) : ?Expr
{
foreach ($condAndExprs as $condAndExpr) {
$expr = $condAndExpr->getExpr();
if (!$expr instanceof Assign) {
continue;
}
return $expr->var;
}
return null;
}
}
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