mirror of https://github.com/rectorphp/rector.git
115 lines
3.8 KiB
PHP
115 lines
3.8 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\Php72\Rector\Assign;
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use PhpParser\BuilderHelpers;
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use PhpParser\Node;
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use PhpParser\Node\Arg;
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use PhpParser\Node\Expr;
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use PhpParser\Node\Expr\ArrayDimFetch;
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use PhpParser\Node\Expr\Assign;
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use PhpParser\Node\Expr\FuncCall;
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use PhpParser\Node\Expr\List_;
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use PhpParser\Node\Stmt;
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use PhpParser\Node\Stmt\Expression;
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use Rector\Rector\AbstractRector;
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use Rector\ValueObject\PhpVersionFeature;
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use Rector\VersionBonding\Contract\MinPhpVersionInterface;
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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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* @see \Rector\Tests\Php72\Rector\Assign\ReplaceEachAssignmentWithKeyCurrentRector\ReplaceEachAssignmentWithKeyCurrentRectorTest
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*/
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final class ReplaceEachAssignmentWithKeyCurrentRector extends AbstractRector implements MinPhpVersionInterface
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{
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/**
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* @var string
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*/
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private const KEY = 'key';
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public function provideMinPhpVersion() : int
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{
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return PhpVersionFeature::NO_EACH_OUTSIDE_LOOP;
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}
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public function getRuleDefinition() : RuleDefinition
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{
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return new RuleDefinition('Replace each() assign outside loop', [new CodeSample(<<<'CODE_SAMPLE'
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$array = ['b' => 1, 'a' => 2];
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$eachedArray = each($array);
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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$array = ['b' => 1, 'a' => 2];
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$eachedArray[1] = current($array);
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$eachedArray['value'] = current($array);
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$eachedArray[0] = key($array);
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$eachedArray['key'] = key($array);
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next($array);
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CODE_SAMPLE
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)]);
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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 [Expression::class];
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}
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/**
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* @param Expression $node
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* @return Stmt[]|null
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*/
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public function refactor(Node $node) : ?array
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{
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if (!$node->expr instanceof Assign) {
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return null;
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}
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$assign = $node->expr;
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if ($this->shouldSkip($assign)) {
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return null;
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}
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/** @var FuncCall $eachFuncCall */
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$eachFuncCall = $assign->expr;
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if ($eachFuncCall->isFirstClassCallable()) {
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return null;
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}
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if (!isset($eachFuncCall->getArgs()[0])) {
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return null;
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}
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$assignVariable = $assign->var;
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$eachedVariable = $eachFuncCall->getArgs()[0]->value;
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return $this->createNewStmts($assignVariable, $eachedVariable);
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}
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private function shouldSkip(Assign $assign) : bool
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{
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if (!$assign->expr instanceof FuncCall) {
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return \true;
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}
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if (!$this->nodeNameResolver->isName($assign->expr, 'each')) {
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return \true;
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}
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return $assign->var instanceof List_;
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}
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/**
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* @return Stmt[]
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*/
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private function createNewStmts(Expr $assignVariable, Expr $eachedVariable) : array
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{
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$exprs = [$this->createDimFetchAssignWithFuncCall($assignVariable, $eachedVariable, 1, 'current'), $this->createDimFetchAssignWithFuncCall($assignVariable, $eachedVariable, 'value', 'current'), $this->createDimFetchAssignWithFuncCall($assignVariable, $eachedVariable, 0, self::KEY), $this->createDimFetchAssignWithFuncCall($assignVariable, $eachedVariable, self::KEY, self::KEY), $this->nodeFactory->createFuncCall('next', [new Arg($eachedVariable)])];
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return \array_map(static function (Expr $expr) : Expression {
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return new Expression($expr);
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}, $exprs);
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}
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/**
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* @param string|int $dimValue
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*/
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private function createDimFetchAssignWithFuncCall(Expr $assignVariable, Expr $eachedVariable, $dimValue, string $functionName) : Assign
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{
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$dimExpr = BuilderHelpers::normalizeValue($dimValue);
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$arrayDimFetch = new ArrayDimFetch($assignVariable, $dimExpr);
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return new Assign($arrayDimFetch, $this->nodeFactory->createFuncCall($functionName, [new Arg($eachedVariable)]));
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}
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}
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