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2da49992cc
[Downgrade] [PHP 7.2] Make DowngradeParameterTypeWideningRector always downgrade to phpdoc type (#390)
74 lines
3.4 KiB
PHP
74 lines
3.4 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\DowngradePhp80\Rector\FuncCall;
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use PhpParser\Node;
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use PhpParser\Node\Arg;
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use PhpParser\Node\Expr\BinaryOp\Identical;
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use PhpParser\Node\Expr\BinaryOp\NotIdentical;
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use PhpParser\Node\Expr\BooleanNot;
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use PhpParser\Node\Expr\FuncCall;
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use PhpParser\Node\Name;
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use PhpParser\Node\Scalar\LNumber;
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use Rector\Core\Rector\AbstractRector;
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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/add_str_starts_with_and_ends_with_functions
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*
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* @see \Rector\Tests\DowngradePhp80\Rector\FuncCall\DowngradeStrStartsWithRector\DowngradeStrStartsWithRectorTest
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*/
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final class DowngradeStrStartsWithRector extends \Rector\Core\Rector\AbstractRector
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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('Downgrade str_starts_with() to strncmp() version', [new \Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample('str_starts_with($haystack, $needle);', 'strncmp($haystack, $needle, strlen($needle)) === 0;')]);
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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\FuncCall::class, \PhpParser\Node\Expr\BooleanNot::class];
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}
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/**
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* @param FuncCall|BooleanNot $node
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*/
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public function refactor(\PhpParser\Node $node) : ?\PhpParser\Node
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{
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if ($node instanceof \PhpParser\Node\Expr\FuncCall && $this->isName($node, 'str_starts_with')) {
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return $this->createIdentical($node);
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}
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if ($node instanceof \PhpParser\Node\Expr\BooleanNot) {
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$negatedCall = $node->expr;
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if ($negatedCall instanceof \PhpParser\Node\Expr\FuncCall && $this->isName($negatedCall, 'str_starts_with')) {
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return $this->createNotIdenticalStrncmpFuncCall($negatedCall);
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}
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}
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return null;
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}
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private function createIdentical(\PhpParser\Node\Expr\FuncCall $funcCall) : \PhpParser\Node\Expr\BinaryOp\Identical
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{
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$strlenFuncCall = $this->createStrlenFuncCall($funcCall);
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$strncmpFuncCall = $this->createStrncmpFuncCall($funcCall, $strlenFuncCall);
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return new \PhpParser\Node\Expr\BinaryOp\Identical($strncmpFuncCall, new \PhpParser\Node\Scalar\LNumber(0));
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}
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private function createNotIdenticalStrncmpFuncCall(\PhpParser\Node\Expr\FuncCall $funcCall) : \PhpParser\Node\Expr\BinaryOp\NotIdentical
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{
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$strlenFuncCall = $this->createStrlenFuncCall($funcCall);
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$strncmpFuncCall = $this->createStrncmpFuncCall($funcCall, $strlenFuncCall);
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return new \PhpParser\Node\Expr\BinaryOp\NotIdentical($strncmpFuncCall, new \PhpParser\Node\Scalar\LNumber(0));
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}
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private function createStrlenFuncCall(\PhpParser\Node\Expr\FuncCall $funcCall) : \PhpParser\Node\Expr\FuncCall
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{
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return new \PhpParser\Node\Expr\FuncCall(new \PhpParser\Node\Name('strlen'), [$funcCall->args[1]]);
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}
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private function createStrncmpFuncCall(\PhpParser\Node\Expr\FuncCall $funcCall, \PhpParser\Node\Expr\FuncCall $strlenFuncCall) : \PhpParser\Node\Expr\FuncCall
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{
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$newArgs = $funcCall->args;
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$newArgs[] = new \PhpParser\Node\Arg($strlenFuncCall);
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return new \PhpParser\Node\Expr\FuncCall(new \PhpParser\Node\Name('strncmp'), $newArgs);
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}
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}
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