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Refactor If statements to use helpers with conditionals and provides a set (#194)
* AbortIfRector rule * Adds the report if rule * Updates the docs * If helper set * Add config to rector paths * CS Fixes
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15 files changed

+525
-1
lines changed

‎config/sets/laravel-if-helpers.php

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<?php
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declare(strict_types=1);
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use Rector\Config\RectorConfig;
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use RectorLaravel\Rector\If_\AbortIfRector;
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use RectorLaravel\Rector\If_\ReportIfRector;
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use RectorLaravel\Rector\If_\ThrowIfRector;
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return static function (RectorConfig $rectorConfig): void {
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$rectorConfig->import(__DIR__ . '/../config.php');
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$rectorConfig->rule(AbortIfRector::class);
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$rectorConfig->rule(ReportIfRector::class);
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$rectorConfig->rule(ThrowIfRector::class);
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};

‎docs/rector_rules_overview.md

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# 58 Rules Overview
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# 60 Rules Overview
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## AbortIfRector
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Change if abort to abort_if
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- class: [`RectorLaravel\Rector\If_\AbortIfRector`](../src/Rector/If_/AbortIfRector.php)
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```diff
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-if ($condition) {
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- abort(404);
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-}
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-if (!$condition) {
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- abort(404);
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-}
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+abort_if($condition, 404);
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+abort_unless($condition, 404);
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```
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<br>
221

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## AddArgumentDefaultValueRector
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@@ -1069,6 +1088,25 @@ Replace `withoutJobs`, `withoutEvents` and `withoutNotifications` with Facade `f
10691088

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<br>
10711090

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## ReportIfRector
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Change if report to report_if
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- class: [`RectorLaravel\Rector\If_\ReportIfRector`](../src/Rector/If_/ReportIfRector.php)
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```diff
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-if ($condition) {
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- report(new Exception());
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-}
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-if (!$condition) {
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- report(new Exception());
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-}
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+report_if($condition, new Exception());
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+report_unless($condition, new Exception());
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```
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<br>
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10721110
## RequestStaticValidateToInjectRector
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Change static `validate()` method to `$request->validate()`

‎rector.php

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->withPaths([
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__DIR__ . '/src',
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__DIR__ . '/tests',
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__DIR__ . '/config',
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])
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->withSkip([
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// for tests

‎src/Rector/If_/AbortIfRector.php

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<?php
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namespace RectorLaravel\Rector\If_;
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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\Assign;
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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\Expr\Variable;
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use PhpParser\Node\Name;
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use PhpParser\Node\Stmt\Expression;
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use PhpParser\Node\Stmt\If_;
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use PhpParser\NodeTraverser;
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use Rector\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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* @see \RectorLaravel\Tests\Rector\If_\AbortIfRector\AbortIfRectorTest
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*/
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class AbortIfRector extends AbstractRector
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{
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public function getRuleDefinition(): RuleDefinition
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{
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return new RuleDefinition('Change if abort to abort_if', [
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new CodeSample(
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<<<'CODE_SAMPLE'
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if ($condition) {
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abort(404);
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}
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if (!$condition) {
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abort(404);
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}
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CODE_SAMPLE
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,
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<<<'CODE_SAMPLE'
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abort_if($condition, 404);
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abort_unless($condition, 404);
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CODE_SAMPLE
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),
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]);
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}
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public function getNodeTypes(): array
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{
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return [If_::class];
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}
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public function refactor(Node $node): ?Node
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{
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if (! $node instanceof If_) {
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return null;
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}
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$ifStmts = $node->stmts;
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// Check if there's a single statement inside the if block to call abort()
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if (
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count($ifStmts) === 1 &&
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$ifStmts[0] instanceof Expression &&
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$ifStmts[0]->expr instanceof FuncCall &&
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$ifStmts[0]->expr->name instanceof Name &&
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$this->isName($ifStmts[0]->expr, 'abort')
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) {
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$condition = $node->cond;
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/** @var FuncCall $abortCall */
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$abortCall = $ifStmts[0]->expr;
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if ($this->exceptionUsesVariablesAssignedByCondition($abortCall, $condition)) {
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return null;
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}
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// Check if the condition is a negation
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if ($condition instanceof BooleanNot) {
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// Create a new throw_unless function call
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return new Expression(new FuncCall(new Name('abort_unless'), [
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new Arg($condition->expr),
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...$abortCall->args,
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]));
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} else {
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// Create a new throw_if function call
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return new Expression(new FuncCall(new Name('abort_if'), [
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new Arg($condition),
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...$abortCall->args,
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]));
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}
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}
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return null;
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}
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/**
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* Make sure the exception doesn't use variables assigned by the condition or this
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* will cause broken code to be generated
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*/
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private function exceptionUsesVariablesAssignedByCondition(Expr $throwExpr, Expr $condition): bool
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{
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$conditionVariables = [];
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$returnValue = false;
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$this->traverseNodesWithCallable($condition, function (Node $node) use (&$conditionVariables): null {
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if ($node instanceof Assign) {
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$conditionVariables[] = $this->getName($node->var);
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}
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return null;
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});
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$this->traverseNodesWithCallable($throwExpr, function (Node $node) use ($conditionVariables, &$returnValue): ?int {
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if ($node instanceof Variable && in_array($this->getName($node), $conditionVariables, true)) {
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$returnValue = true;
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return NodeTraverser::STOP_TRAVERSAL;
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}
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return null;
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});
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return $returnValue;
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}
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}

‎src/Rector/If_/ReportIfRector.php

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<?php
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namespace RectorLaravel\Rector\If_;
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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\Assign;
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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\Expr\Variable;
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use PhpParser\Node\Name;
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use PhpParser\Node\Stmt\Expression;
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use PhpParser\Node\Stmt\If_;
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use PhpParser\NodeTraverser;
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use Rector\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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* @see \RectorLaravel\Tests\Rector\If_\ReportIfRector\ReportIfRectorTest
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*/
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class ReportIfRector extends AbstractRector
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{
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public function getRuleDefinition(): RuleDefinition
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{
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return new RuleDefinition('Change if report to report_if', [
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new CodeSample(
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<<<'CODE_SAMPLE'
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if ($condition) {
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report(new Exception());
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}
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if (!$condition) {
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report(new Exception());
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}
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CODE_SAMPLE
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,
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<<<'CODE_SAMPLE'
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report_if($condition, new Exception());
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report_unless($condition, new Exception());
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CODE_SAMPLE
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),
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]);
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}
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public function getNodeTypes(): array
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{
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return [If_::class];
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}
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public function refactor(Node $node): ?Node
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{
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if (! $node instanceof If_) {
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return null;
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}
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$ifStmts = $node->stmts;
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// Check if there's a single statement inside the if block to call abort()
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if (
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count($ifStmts) === 1 &&
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$ifStmts[0] instanceof Expression &&
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$ifStmts[0]->expr instanceof FuncCall &&
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$ifStmts[0]->expr->name instanceof Name &&
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$this->isName($ifStmts[0]->expr, 'report')
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) {
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$condition = $node->cond;
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/** @var FuncCall $abortCall */
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$abortCall = $ifStmts[0]->expr;
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if ($this->exceptionUsesVariablesAssignedByCondition($abortCall, $condition)) {
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return null;
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}
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// Check if the condition is a negation
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if ($condition instanceof BooleanNot) {
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// Create a new throw_unless function call
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return new Expression(new FuncCall(new Name('report_unless'), [
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new Arg($condition->expr),
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...$abortCall->args,
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]));
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} else {
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// Create a new throw_if function call
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return new Expression(new FuncCall(new Name('report_if'), [
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new Arg($condition),
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...$abortCall->args,
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]));
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}
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}
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return null;
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}
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/**
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* Make sure the exception doesn't use variables assigned by the condition or this
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* will cause broken code to be generated
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*/
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private function exceptionUsesVariablesAssignedByCondition(Expr $throwExpr, Expr $condition): bool
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{
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$conditionVariables = [];
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$returnValue = false;
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$this->traverseNodesWithCallable($condition, function (Node $node) use (&$conditionVariables): null {
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if ($node instanceof Assign) {
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$conditionVariables[] = $this->getName($node->var);
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}
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return null;
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});
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$this->traverseNodesWithCallable($throwExpr, function (Node $node) use ($conditionVariables, &$returnValue): ?int {
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if ($node instanceof Variable && in_array($this->getName($node), $conditionVariables, true)) {
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$returnValue = true;
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return NodeTraverser::STOP_TRAVERSAL;
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}
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return null;
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});
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return $returnValue;
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}
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}

‎tests/Rector/If_/AbortIfRector/AbortIfRectorTest.php

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<?php
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declare(strict_types=1);
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namespace RectorLaravel\Tests\Rector\If_\AbortIfRector;
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use Iterator;
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use PHPUnit\Framework\Attributes\DataProvider;
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use Rector\Testing\PHPUnit\AbstractRectorTestCase;
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final class AbortIfRectorTest extends AbstractRectorTestCase
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{
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public static function provideData(): Iterator
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{
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return self::yieldFilesFromDirectory(__DIR__ . '/Fixture');
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}
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/**
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* @test
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*/
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#[DataProvider('provideData')]
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public function test(string $filePath): void
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{
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$this->doTestFile($filePath);
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}
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public function provideConfigFilePath(): string
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{
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return __DIR__ . '/config/configured_rule.php';
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}
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}

‎tests/Rector/If_/AbortIfRector/Fixture/fixture.php.inc

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<?php
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namespace RectorLaravel\Tests\Rector\If_\AbortIfRector\Fixture;
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class Fixture
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{
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public function handle($condition)
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{
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if ($condition) {
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abort(404);
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}
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if (!$condition) {
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abort(404);
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}
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if ($condition = call()) {
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abort(404);
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}
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if ($condition) {
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abort(404);
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}
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}
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}
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?>
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-----
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<?php
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namespace RectorLaravel\Tests\Rector\If_\AbortIfRector\Fixture;
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class Fixture
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{
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public function handle($condition)
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{
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abort_if($condition, 404);
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abort_unless($condition, 404);
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abort_if($condition = call(), 404);
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abort_if($condition, 404);
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}
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}
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?>

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