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Mini Shell
Mini Shell
<?php
declare (strict_types=1);
namespace Rector\NodeManipulator;
use PhpParser\Node;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\Stmt;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Expression;
use Rector\Contract\PhpParser\Node\StmtsAwareInterface;
use Rector\DeadCode\NodeAnalyzer\ExprUsedInNodeAnalyzer;
use Rector\PhpDocParser\NodeTraverser\SimpleCallableNodeTraverser;
use Rector\PhpParser\Comparing\NodeComparator;
use Rector\PhpParser\Node\BetterNodeFinder;
final class StmtsManipulator
{
/**
* @readonly
* @var \Rector\PhpDocParser\NodeTraverser\SimpleCallableNodeTraverser
*/
private $simpleCallableNodeTraverser;
/**
* @readonly
* @var \Rector\PhpParser\Node\BetterNodeFinder
*/
private $betterNodeFinder;
/**
* @readonly
* @var \Rector\PhpParser\Comparing\NodeComparator
*/
private $nodeComparator;
/**
* @readonly
* @var \Rector\DeadCode\NodeAnalyzer\ExprUsedInNodeAnalyzer
*/
private $exprUsedInNodeAnalyzer;
public function __construct(SimpleCallableNodeTraverser $simpleCallableNodeTraverser, BetterNodeFinder $betterNodeFinder, NodeComparator $nodeComparator, ExprUsedInNodeAnalyzer $exprUsedInNodeAnalyzer)
{
$this->simpleCallableNodeTraverser = $simpleCallableNodeTraverser;
$this->betterNodeFinder = $betterNodeFinder;
$this->nodeComparator = $nodeComparator;
$this->exprUsedInNodeAnalyzer = $exprUsedInNodeAnalyzer;
}
/**
* @param Stmt[] $stmts
*/
public function getUnwrappedLastStmt(array $stmts) : ?Node
{
\end($stmts);
$lastStmtKey = \key($stmts);
\reset($stmts);
$lastStmt = $stmts[$lastStmtKey];
if ($lastStmt instanceof Expression) {
return $lastStmt->expr;
}
return $lastStmt;
}
/**
* @param Stmt[] $stmts
* @return Stmt[]
*/
public function filterOutExistingStmts(ClassMethod $classMethod, array $stmts) : array
{
$this->simpleCallableNodeTraverser->traverseNodesWithCallable((array) $classMethod->stmts, function (Node $node) use(&$stmts) {
foreach ($stmts as $key => $assign) {
if (!$this->nodeComparator->areNodesEqual($node, $assign)) {
continue;
}
unset($stmts[$key]);
}
return null;
});
return $stmts;
}
/**
* @param StmtsAwareInterface|Stmt[] $stmtsAware
*/
public function isVariableUsedInNextStmt($stmtsAware, int $jumpToKey, string $variableName) : bool
{
if ($stmtsAware instanceof StmtsAwareInterface && $stmtsAware->stmts === null) {
return \false;
}
$stmts = \array_slice($stmtsAware instanceof StmtsAwareInterface ? $stmtsAware->stmts : $stmtsAware, $jumpToKey, null, \true);
$variable = new Variable($variableName);
return (bool) $this->betterNodeFinder->findFirst($stmts, function (Node $subNode) use($variable) : bool {
return $this->exprUsedInNodeAnalyzer->isUsed($subNode, $variable);
});
}
}
Zerion Mini Shell 1.0