|
| 1 | +<?php |
| 2 | + |
| 3 | +declare (strict_types=1); |
| 4 | +namespace Rector\DeadCode\Rector\MethodCall; |
| 5 | + |
| 6 | +use PhpParser\Node; |
| 7 | +use PhpParser\Node\Expr\FuncCall; |
| 8 | +use PhpParser\Node\Expr\MethodCall; |
| 9 | +use PhpParser\Node\Expr\New_; |
| 10 | +use PhpParser\Node\Expr\StaticCall; |
| 11 | +use PhpParser\Node\Identifier; |
| 12 | +use Rector\DeadCode\NodeAnalyzer\CallLikeParamDefaultResolver; |
| 13 | +use Rector\PhpParser\Node\Value\ValueResolver; |
| 14 | +use Rector\Rector\AbstractRector; |
| 15 | +use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; |
| 16 | +use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; |
| 17 | +/** |
| 18 | + * @see \Rector\Tests\DeadCode\Rector\MethodCall\RemoveNullNamedArgOnNullDefaultParamRector\RemoveNullNamedArgOnNullDefaultParamRectorTest |
| 19 | + */ |
| 20 | +final class RemoveNullNamedArgOnNullDefaultParamRector extends AbstractRector |
| 21 | +{ |
| 22 | + /** |
| 23 | + * @readonly |
| 24 | + */ |
| 25 | + private ValueResolver $valueResolver; |
| 26 | + /** |
| 27 | + * @readonly |
| 28 | + */ |
| 29 | + private CallLikeParamDefaultResolver $callLikeParamDefaultResolver; |
| 30 | + public function __construct(ValueResolver $valueResolver, CallLikeParamDefaultResolver $callLikeParamDefaultResolver) |
| 31 | + { |
| 32 | + $this->valueResolver = $valueResolver; |
| 33 | + $this->callLikeParamDefaultResolver = $callLikeParamDefaultResolver; |
| 34 | + } |
| 35 | + public function getRuleDefinition(): RuleDefinition |
| 36 | + { |
| 37 | + return new RuleDefinition('Remove named null argument, where null is already a default param value', [new CodeSample(<<<'CODE_SAMPLE' |
| 38 | +class SomeClass |
| 39 | +{ |
| 40 | + public function call(ExternalClass $externalClass) |
| 41 | + { |
| 42 | + $externalClass->execute(value: 1, someClass: null); |
| 43 | + } |
| 44 | +} |
| 45 | +
|
| 46 | +class ExternalClass |
| 47 | +{ |
| 48 | + public function execute(int $value, ?SomeClass $someClass = null) |
| 49 | + { |
| 50 | + } |
| 51 | +} |
| 52 | +CODE_SAMPLE |
| 53 | +, <<<'CODE_SAMPLE' |
| 54 | +class SomeClass |
| 55 | +{ |
| 56 | + public function call(ExternalClass $externalClass) |
| 57 | + { |
| 58 | + $externalClass->execute(value: 1); |
| 59 | + } |
| 60 | +} |
| 61 | +
|
| 62 | +class ExternalClass |
| 63 | +{ |
| 64 | + public function execute(int $value, ?SomeClass $someClass = null) |
| 65 | + { |
| 66 | + } |
| 67 | +} |
| 68 | +CODE_SAMPLE |
| 69 | +)]); |
| 70 | + } |
| 71 | + public function getNodeTypes(): array |
| 72 | + { |
| 73 | + return [MethodCall::class, StaticCall::class, New_::class, FuncCall::class]; |
| 74 | + } |
| 75 | + /** |
| 76 | + * @param MethodCall|StaticCall|New_|FuncCall $node |
| 77 | + * @return \PhpParser\Node\Expr\StaticCall|\PhpParser\Node\Expr\MethodCall|\PhpParser\Node\Expr\New_|\PhpParser\Node\Expr\FuncCall|null |
| 78 | + */ |
| 79 | + public function refactor(Node $node) |
| 80 | + { |
| 81 | + if ($node->isFirstClassCallable()) { |
| 82 | + return null; |
| 83 | + } |
| 84 | + $args = $node->getArgs(); |
| 85 | + if ($args === []) { |
| 86 | + return null; |
| 87 | + } |
| 88 | + $hasNamedArg = \false; |
| 89 | + foreach ($args as $arg) { |
| 90 | + // unpack hides which parameters are bound, so removal is not safe |
| 91 | + if ($arg->unpack) { |
| 92 | + return null; |
| 93 | + } |
| 94 | + if ($arg->name instanceof Identifier) { |
| 95 | + $hasNamedArg = \true; |
| 96 | + } |
| 97 | + } |
| 98 | + if (!$hasNamedArg) { |
| 99 | + return null; |
| 100 | + } |
| 101 | + $nullPositions = $this->callLikeParamDefaultResolver->resolveNullPositions($node); |
| 102 | + if ($nullPositions === []) { |
| 103 | + return null; |
| 104 | + } |
| 105 | + $hasChanged = \false; |
| 106 | + foreach ($args as $argPosition => $arg) { |
| 107 | + // only named args are removed here; in any order, remaining args still bind by name |
| 108 | + if (!$arg->name instanceof Identifier) { |
| 109 | + continue; |
| 110 | + } |
| 111 | + if (!$this->valueResolver->isNull($arg->value)) { |
| 112 | + continue; |
| 113 | + } |
| 114 | + $parameterPosition = $this->callLikeParamDefaultResolver->resolvePositionParameterByName($node, $arg->name->toString()); |
| 115 | + if ($parameterPosition === null) { |
| 116 | + continue; |
| 117 | + } |
| 118 | + if (!in_array($parameterPosition, $nullPositions, \true)) { |
| 119 | + continue; |
| 120 | + } |
| 121 | + unset($node->args[$argPosition]); |
| 122 | + $hasChanged = \true; |
| 123 | + } |
| 124 | + if ($hasChanged) { |
| 125 | + return $node; |
| 126 | + } |
| 127 | + return null; |
| 128 | + } |
| 129 | +} |
0 commit comments