Add rule "resource models should be used directly"

docs/features.md

@@ -61,6 +61,17 @@ parameters:
         checkServiceContracts: false
 ```
 
+### Resource Models should be used directly
+
+Since Magento framework version 100.1.0 it is no longer recommended to use `\Magento\Framework\Model\AbtractModel::getResource()` for retrieving the model resource. Use [service contracts](https://devdocs.magento.com/guides/v2.4/extension-dev-guide/service-contracts/service-contracts.html) instead.
+
+To disable this rule add the following code to your `phpstan.neon` configuration file:
+```neon
+parameters:
+    magento:
+        checkResourceModelsUsedDirectly: false
+```
+
 ### Collections should be used directly via factory
 
 Since Magento framework version 101.0.0 Collections should be used directly via factory instead of calling

extension.neon

@@ -2,6 +2,7 @@ parameters:
 	magento:
 		checkCollectionViaFactory: true
 		checkServiceContracts: true
+		checkResourceModelsUsedDirectly: true
 		magentoRoot: %currentWorkingDirectory%
 	bootstrapFiles:
 		- magento-autoloader.php
@@ -17,7 +18,8 @@ conditionalTags:
 		phpstan.rules.rule: %magento.checkCollectionViaFactory%
 	bitExpert\PHPStan\Magento\Rules\AbstractModelUseServiceContractRule:
 		phpstan.rules.rule: %magento.checkServiceContracts%
-
+	bitExpert\PHPStan\Magento\Rules\ResourceModelsShouldBeUsedDirectlyRule:
+		phpstan.rules.rule: %magento.checkResourceModelsUsedDirectly%
 services:
 	-
 		class: bitExpert\PHPStan\Magento\Type\ObjectManagerDynamicReturnTypeExtension
@@ -43,6 +45,8 @@ services:
 		class: bitExpert\PHPStan\Magento\Rules\AbstractModelRetrieveCollectionViaFactoryRule
 	-
 		class: bitExpert\PHPStan\Magento\Rules\AbstractModelUseServiceContractRule
+	-
+		class: bitExpert\PHPStan\Magento\Rules\ResourceModelsShouldBeUsedDirectlyRule
 	fileCacheStorage:
 		class: bitExpert\PHPStan\Magento\Autoload\Cache\FileCacheStorage
 		arguments:

src/bitExpert/PHPStan/Magento/Rules/ResourceModelsShouldBeUsedDirectlyRule.php

@@ -0,0 +1,73 @@
+<?php
+
+/*
+ * This file is part of the phpstan-magento package.
+ *
+ * (c) bitExpert AG
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace bitExpert\PHPStan\Magento\Rules;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr\MethodCall;
+use PHPStan\Analyser\Scope;
+use PHPStan\Rules\Rule;
+use PHPStan\ShouldNotHappenException;
+use PHPStan\Type\ObjectType;
+use PHPStan\Type\VerbosityLevel;
+
+/**
+ * Since 100.1.0 resource models should be used directly.
+ *
+ * @implements Rule<MethodCall>
+ */
+class ResourceModelsShouldBeUsedDirectlyRule implements Rule
+{
+    /**
+     * @phpstan-return class-string<MethodCall>
+     * @return string
+     */
+    public function getNodeType(): string
+    {
+        return MethodCall::class;
+    }
+
+    /**
+     * @param Node $node
+     * @param Scope $scope
+     * @return (string|\PHPStan\Rules\RuleError)[] errors
+     * @throws ShouldNotHappenException
+     */
+    public function processNode(Node $node, Scope $scope): array
+    {
+        if (!$node instanceof MethodCall) {
+            throw new ShouldNotHappenException();
+        }
+
+        if (!$node->name instanceof Node\Identifier) {
+            return [];
+        }
+
+        if (!in_array($node->name->name, ['getResource', '_getResource'], true)) {
+            return [];
+        }
+
+        $type = $scope->getType($node->var);
+        $isAbstractModelType = (new ObjectType('Magento\Framework\Model\AbstractModel'))->isSuperTypeOf($type);
+        if (!$isAbstractModelType->yes()) {
+            return [];
+        }
+
+        return [
+            sprintf(
+                '%s::%s() is deprecated. Use Resource Models directly',
+                $type->describe(VerbosityLevel::typeOnly()),
+                $node->name->name
+            )
+        ];
+    }
+}

tests/bitExpert/PHPStan/Magento/Rules/Helper/resource_model.php

@@ -0,0 +1,4 @@
+<?php
+
+$model = new \bitExpert\PHPStan\Magento\Rules\Helper\SampleModel();
+$model->getResource();

tests/bitExpert/PHPStan/Magento/Rules/ResourceModelsShouldBeUsedDirectlyRuleUnitTest.php

@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of the phpstan-magento package.
+ *
+ * (c) bitExpert AG
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace bitExpert\PHPStan\Magento\Rules;
+
+use bitExpert\PHPStan\Magento\Rules\Helper\SampleModel;
+use PhpParser\Node\Expr\MethodCall;
+use PhpParser\Node\Expr\Variable;
+use PHPStan\Analyser\Scope;
+use PHPStan\Rules\Rule;
+use PHPStan\ShouldNotHappenException;
+use PHPStan\Testing\RuleTestCase;
+
+/**
+ * @extends \PHPStan\Testing\RuleTestCase<ResourceModelsShouldBeUsedDirectlyRule>
+ */
+class ResourceModelsShouldBeUsedDirectlyRuleUnitTest extends RuleTestCase
+{
+    protected function getRule(): Rule
+    {
+        return new ResourceModelsShouldBeUsedDirectlyRule();
+    }
+
+    /**
+     * @test
+     */
+    public function checkCaughtExceptions(): void
+    {
+        $this->analyse([__DIR__ . '/Helper/resource_model.php'], [
+            [
+                SampleModel::class . '::getResource() is deprecated. Use Resource Models directly',
+                4,
+            ],
+        ]);
+    }
+
+    /**
+     * @test
+     */
+    public function getNodeTypeMethodReturnsMethodCall(): void
+    {
+        $rule = new ResourceModelsShouldBeUsedDirectlyRule();
+
+        self::assertSame(MethodCall::class, $rule->getNodeType());
+    }
+
+    /**
+     * @test
+     */
+    public function processNodeThrowsExceptionForNonMethodCallNodes(): void
+    {
+        $this->expectException(ShouldNotHappenException::class);
+
+        $node = new Variable('var');
+        $scope = $this->createMock(Scope::class);
+
+        $rule = new ResourceModelsShouldBeUsedDirectlyRule();
+        $rule->processNode($node, $scope);
+    }
+
+    /**
+     * @test
+     */
+    public function processNodeReturnsEarlyWhenNodeNameIsWrongType(): void
+    {
+        $node = new MethodCall(new Variable('var'), new Variable('wrong_node'));
+        $scope = $this->createMock(Scope::class);
+
+        $rule = new ResourceModelsShouldBeUsedDirectlyRule();
+        $return = $rule->processNode($node, $scope);
+
+        self::assertCount(0, $return);
+    }
+
+    /**
+     * @test
+     */
+    public function processNodeReturnsEarlyWhenNodeNameIsNotSaveOrLoadOrDelete(): void
+    {
+        $node = new MethodCall(new Variable('var'), 'wrong_node_name');
+        $scope = $this->createMock(Scope::class);
+
+        $rule = new ResourceModelsShouldBeUsedDirectlyRule();
+        $return = $rule->processNode($node, $scope);
+
+        self::assertCount(0, $return);
+    }
+}