SetterAndGetterFinder.php

<?php

declare(strict_types=1);

namespace Rector\Php84\NodeFinder;

use PhpParser\Node\Stmt\Class_;
use PhpParser\Node\Stmt\ClassMethod;
use Rector\TypeDeclaration\NodeAnalyzer\ClassMethodAndPropertyAnalyzer;
use Rector\ValueObject\MethodName;

final readonly class SetterAndGetterFinder
{
    public function __construct(
        private ClassMethodAndPropertyAnalyzer $classMethodAndPropertyAnalyzer
    ) {
    }

    /**
     * @return ClassMethod[]
     */
    public function findGetterAndSetterClassMethods(Class_ $class, string $propertyName): array
    {
        $classMethods = [];

        $constructClassMethod = $class->getMethod(MethodName::CONSTRUCT);

        if ($constructClassMethod instanceof ClassMethod) {
            foreach ($constructClassMethod->params as $param) {
                if ($param->isReadonly()) {
                    return [];
                }
            }
        }

        $getterClassMethod = $this->findGetterClassMethod($class, $propertyName);
        if ($getterClassMethod instanceof ClassMethod) {
            $classMethods[] = $getterClassMethod;
        }

        $setterClassMethod = $this->findSetterClassMethod($class, $propertyName);
        if ($setterClassMethod instanceof ClassMethod) {
            $classMethods[] = $setterClassMethod;
        }

        return $classMethods;
    }

    public function findGetterClassMethod(Class_ $class, string $propertyName): ?ClassMethod
    {
        foreach ($class->getMethods() as $classMethod) {
            if (! $this->classMethodAndPropertyAnalyzer->hasPropertyFetchReturn($classMethod, $propertyName)) {
                continue;
            }

            return $classMethod;
        }

        return null;
    }

    public function findSetterClassMethod(Class_ $class, string $propertyName): ?ClassMethod
    {
        foreach ($class->getMethods() as $classMethod) {

            if ($classMethod->isMagic()) {
                continue;
            }

            if (! $this->classMethodAndPropertyAnalyzer->hasOnlyPropertyAssign($classMethod, $propertyName)) {
                continue;
            }

            return $classMethod;
        }

        return null;
    }
}