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92 lines
3.5 KiB
PHP
92 lines
3.5 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\DowngradePhp71\Rector\StaticCall;
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use PhpParser\Node;
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use PhpParser\Node\Arg;
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use PhpParser\Node\Expr\Assign;
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use PhpParser\Node\Expr\Closure;
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use PhpParser\Node\Expr\ClosureUse;
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use PhpParser\Node\Expr\FuncCall;
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use PhpParser\Node\Expr\StaticCall;
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use PhpParser\Node\Expr\Variable;
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use PhpParser\Node\Stmt\Expression;
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use PhpParser\Node\Stmt\Return_;
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use Rector\Core\Rector\AbstractRector;
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use Rector\Naming\Naming\VariableNaming;
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use Rector\NodeTypeResolver\Node\AttributeKey;
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use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
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use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
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/**
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* @changelog https://wiki.php.net/rfc/closurefromcallable
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*
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* @see \Rector\Tests\DowngradePhp71\Rector\StaticCall\DowngradeClosureFromCallableRector\DowngradeClosureFromCallableRectorTest
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*/
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final class DowngradeClosureFromCallableRector extends \Rector\Core\Rector\AbstractRector
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{
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/**
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* @var \Rector\Naming\Naming\VariableNaming
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*/
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private $variableNaming;
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public function __construct(\Rector\Naming\Naming\VariableNaming $variableNaming)
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{
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$this->variableNaming = $variableNaming;
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}
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/**
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* @return array<class-string<Node>>
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*/
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public function getNodeTypes() : array
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{
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return [\PhpParser\Node\Expr\StaticCall::class];
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}
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public function getRuleDefinition() : \Symplify\RuleDocGenerator\ValueObject\RuleDefinition
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{
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return new \Symplify\RuleDocGenerator\ValueObject\RuleDefinition('Converts Closure::fromCallable() to compatible alternative.', [new \Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample(<<<'CODE_SAMPLE'
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\Closure::fromCallable('callable');
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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$callable = 'callable';
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function () use ($callable) {
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return $callable(...func_get_args());
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};
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CODE_SAMPLE
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)]);
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}
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/**
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* @param StaticCall $node
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*/
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public function refactor(\PhpParser\Node $node) : ?\PhpParser\Node
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{
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if ($this->shouldSkip($node)) {
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return null;
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}
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if (!isset($node->args[0])) {
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return null;
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}
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if (!$node->args[0] instanceof \PhpParser\Node\Arg) {
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return null;
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}
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$tempVariableName = $this->variableNaming->createCountedValueName('callable', $node->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::SCOPE));
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$tempVariable = new \PhpParser\Node\Expr\Variable($tempVariableName);
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$expression = new \PhpParser\Node\Stmt\Expression(new \PhpParser\Node\Expr\Assign($tempVariable, $node->args[0]->value));
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$currentStatement = $node->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::CURRENT_STATEMENT);
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$this->nodesToAddCollector->addNodeBeforeNode($expression, $currentStatement);
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$closure = new \PhpParser\Node\Expr\Closure();
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$closure->uses[] = new \PhpParser\Node\Expr\ClosureUse($tempVariable);
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$innerFuncCall = new \PhpParser\Node\Expr\FuncCall($tempVariable, [new \PhpParser\Node\Arg($this->nodeFactory->createFuncCall('func_get_args'), \false, \true)]);
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$closure->stmts[] = new \PhpParser\Node\Stmt\Return_($innerFuncCall);
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return $closure;
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}
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private function shouldSkip(\PhpParser\Node\Expr\StaticCall $staticCall) : bool
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{
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if (!$this->nodeNameResolver->isName($staticCall->class, 'Closure')) {
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return \true;
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}
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if (!$this->nodeNameResolver->isName($staticCall->name, 'fromCallable')) {
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return \true;
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}
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return !isset($staticCall->args[0]);
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}
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}
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