[removing] Add interface support to RemoveInterfaceRector

rules-tests/Removing/Rector/Class_/RemoveInterfacesRector/Fixture/remove_from_interface.php.inc

@@ -0,0 +1,23 @@
+<?php
+
+namespace Rector\Tests\Removing\Rector\Class_\RemoveInterfacesRector\Fixture;
+
+use Rector\Tests\Removing\Rector\Class_\RemoveInterfacesRector\Source\SomeInterface;
+
+interface RemoveFromInterface extends SomeInterface
+{
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\Removing\Rector\Class_\RemoveInterfacesRector\Fixture;
+
+use Rector\Tests\Removing\Rector\Class_\RemoveInterfacesRector\Source\SomeInterface;
+
+interface RemoveFromInterface
+{
+}
+
+?>

rules/Removing/Rector/Class_/RemoveInterfacesRector.php

@@ -6,6 +6,7 @@
 
 use PhpParser\Node;
 use PhpParser\Node\Stmt\Class_;
+use PhpParser\Node\Stmt\Interface_;
 use Rector\Contract\Rector\ConfigurableRectorInterface;
 use Rector\Rector\AbstractRector;
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\ConfiguredCodeSample;
@@ -48,13 +49,33 @@ class SomeClass
      */
     public function getNodeTypes(): array
     {
-        return [Class_::class];
+        return [Class_::class, Interface_::class];
     }
 
     /**
-     * @param Class_ $node
+     * @param Class_|Interface_ $node
      */
     public function refactor(Node $node): ?Node
+    {
+        if ($node instanceof Class_) {
+            return $this->refactorClass($node);
+        }
+
+        return $this->refactorInterface($node);
+    }
+
+    /**
+     * @param mixed[] $configuration
+     */
+    public function configure(array $configuration): void
+    {
+        Assert::allString($configuration);
+
+        /** @var string[] $configuration */
+        $this->interfacesToRemove = $configuration;
+    }
+
+    private function refactorClass(Class_ $node): ?Class_
     {
         if ($node->implements === []) {
             return null;
@@ -75,14 +96,23 @@ public function refactor(Node $node): ?Node
         return $node;
     }
 
-    /**
-     * @param mixed[] $configuration
-     */
-    public function configure(array $configuration): void
+    private function refactorInterface(Interface_ $interface): Interface_|null
     {
-        Assert::allString($configuration);
+        $isInterfacesRemoved = false;
 
-        /** @var string[] $configuration */
-        $this->interfacesToRemove = $configuration;
+        foreach ($interface->extends as $key => $extend) {
+            if (! $this->isNames($extend, $this->interfacesToRemove)) {
+                continue;
+            }
+
+            unset($interface->extends[$key]);
+            $isInterfacesRemoved = true;
+        }
+
+        if (! $isInterfacesRemoved) {
+            return null;
+        }
+
+        return $interface;
     }
 }