[Order] Add OrderPropertyByComplexityRector

config/set/order/order.yaml

@@ -1,3 +1,4 @@
 services:
     Rector\Order\Rector\Class_\OrderPrivateMethodsByUseRector: null
     Rector\Order\Rector\Class_\OrderPublicInterfaceMethodRector: null
+    Rector\Order\Rector\Class_\OrderPropertyByComplexityRector: null

docs/rector_rules_overview.md

@@ -1,4 +1,4 @@
-# All 500 Rectors Overview
+# All 501 Rectors Overview
 
 - [Projects](#projects)
 - [General](#general)
@@ -4873,6 +4873,40 @@ Order private methods in order of their use
 
 <br>
 
+### `OrderPropertyByComplexityRector`
+
+- class: [`Rector\Order\Rector\Class_\OrderPropertyByComplexityRector`](/../master/rules/order/src/Rector/Class_/OrderPropertyByComplexityRector.php)
+- [test fixtures](/../master/rules/order/tests/Rector/Class_/OrderPropertyByComplexityRector/Fixture)
+
+Order properties by complexity, from the simplest like scalars to the most complex, like union or collections
+
+```diff
+-class SomeClass
++class SomeClass implements FoodRecipeInterface
+ {
+     /**
+      * @var string
+      */
+     private $name;
+
+     /**
+-     * @var Type
++     * @var int
+      */
+-    private $service;
++    private $price;
+
+     /**
+-     * @var int
++     * @var Type
+      */
+-    private $price;
++    private $service;
+ }
+```
+
+<br>
+
 ### `OrderPublicInterfaceMethodRector`
 
 - class: [`Rector\Order\Rector\Class_\OrderPublicInterfaceMethodRector`](/../master/rules/order/src/Rector/Class_/OrderPublicInterfaceMethodRector.php)

rules/order/src/PropertyRanker.php

@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Order;
+
+use PhpParser\Node\Stmt\Property;
+use PHPStan\Type\ArrayType;
+use PHPStan\Type\BooleanType;
+use PHPStan\Type\FloatType;
+use PHPStan\Type\IntegerType;
+use PHPStan\Type\IntersectionType;
+use PHPStan\Type\IterableType;
+use PHPStan\Type\StringType;
+use PHPStan\Type\TypeWithClassName;
+use PHPStan\Type\UnionType;
+use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfo;
+use Rector\Core\Exception\NotImplementedException;
+use Rector\NodeTypeResolver\Node\AttributeKey;
+
+final class PropertyRanker
+{
+    public function rank(Property $property): int
+    {
+        /** @var PhpDocInfo|null $phpDocInfo */
+        $phpDocInfo = $property->getAttribute(AttributeKey::PHP_DOC_INFO);
+        if ($phpDocInfo === null) {
+            return 1;
+        }
+
+        $varType = $phpDocInfo->getVarType();
+        if ($varType instanceof StringType || $varType instanceof IntegerType || $varType instanceof BooleanType || $varType instanceof FloatType) {
+            return 5;
+        }
+
+        if ($varType instanceof ArrayType || $varType instanceof IterableType) {
+            return 10;
+        }
+
+        if ($varType instanceof TypeWithClassName) {
+            return 15;
+        }
+
+        if ($varType instanceof IntersectionType) {
+            return 20;
+        }
+
+        if ($varType instanceof UnionType) {
+            return 25;
+        }
+
+        throw new NotImplementedException(get_class($varType));
+    }
+}

rules/order/src/Rector/Class_/OrderPropertyByComplexityRector.php

@@ -0,0 +1,156 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Order\Rector\Class_;
+
+use PhpParser\Node;
+use PhpParser\Node\Stmt\Class_;
+use PhpParser\Node\Stmt\Property;
+use Rector\Core\Rector\AbstractRector;
+use Rector\Core\RectorDefinition\CodeSample;
+use Rector\Core\RectorDefinition\RectorDefinition;
+use Rector\Order\PropertyRanker;
+use Rector\Order\StmtOrder;
+
+/**
+ * @see \Rector\Order\Tests\Rector\Class_\OrderPropertyByComplexityRector\OrderPropertyByComplexityRectorTest
+ */
+final class OrderPropertyByComplexityRector extends AbstractRector
+{
+    /**
+     * @var StmtOrder
+     */
+    private $stmtOrder;
+
+    /**
+     * @var PropertyRanker
+     */
+    private $propertyRanker;
+
+    public function __construct(StmtOrder $stmtOrder, PropertyRanker $propertyRanker)
+    {
+        $this->stmtOrder = $stmtOrder;
+        $this->propertyRanker = $propertyRanker;
+    }
+
+    public function getDefinition(): RectorDefinition
+    {
+        return new RectorDefinition(
+            'Order properties by complexity, from the simplest like scalars to the most complex, like union or collections',
+            [
+                new CodeSample(
+                    <<<'PHP'
+class SomeClass
+{
+    /**
+     * @var string
+     */
+    private $name;
+
+    /**
+     * @var Type
+     */
+    private $service;
+
+    /**
+     * @var int
+     */
+    private $price;
+}
+PHP
+,
+                    <<<'PHP'
+class SomeClass implements FoodRecipeInterface
+{
+    /**
+     * @var string
+     */
+    private $name;
+
+    /**
+     * @var int
+     */
+    private $price;
+
+    /**
+     * @var Type
+     */
+    private $service;
+}
+PHP
+
+                ),
+            ]
+        );
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getNodeTypes(): array
+    {
+        return [Class_::class];
+    }
+
+    /**
+     * @param Class_ $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        $propertyByVisibilityByPosition = $this->resolvePropertyByVisibilityByPosition($node);
+
+        foreach ($propertyByVisibilityByPosition as $propertyByPosition) {
+            $propertyNameToRank = [];
+            $propertyPositionByName = [];
+
+            foreach ($propertyByPosition as $position => $property) {
+                /** @var string $propertyName */
+                $propertyName = $this->getName($property);
+
+                $propertyPositionByName[$position] = $propertyName;
+                $propertyNameToRank[$propertyName] = $this->propertyRanker->rank($property);
+            }
+
+            asort($propertyNameToRank);
+            $sortedPropertyByRank = array_keys($propertyNameToRank);
+
+            $oldToNewKeys = $this->stmtOrder->createOldToNewKeys($propertyPositionByName, $sortedPropertyByRank);
+
+            $this->stmtOrder->reorderClassStmtsByOldToNewKeys($node, $oldToNewKeys);
+        }
+
+        return $node;
+    }
+
+    private function getVisibilityAsString(Property $property): string
+    {
+        if ($property->isPrivate()) {
+            return 'private';
+        }
+
+        if ($property->isProtected()) {
+            return 'protected';
+        }
+
+        return 'public';
+    }
+
+    /**
+     * @return Property[][]
+     */
+    private function resolvePropertyByVisibilityByPosition(Class_ $class): array
+    {
+        $propertyByVisibilityByPosition = [];
+        foreach ($class->stmts as $position => $classStmt) {
+            if (! $classStmt instanceof Property) {
+                continue;
+            }
+
+            $visibility = $this->getVisibilityAsString($classStmt);
+            $propertyByVisibilityByPosition[$visibility][$position] = $classStmt;
+        }
+
+        return $propertyByVisibilityByPosition;
+    }
+}

rules/order/src/StmtOrder.php

@@ -31,14 +31,28 @@ public function createOldToNewKeys(array $desiredStmtOrder, array $currentStmtOr
 
     public function reorderClassStmtsByOldToNewKeys(Class_ $node, array $oldToNewKeys): Class_
     {
+        $reorderedStmts = [];
+
+        $stmtCount = count($node->stmts);
+
         foreach ($node->stmts as $key => $stmt) {
-            if (! isset($oldToNewKeys[$key])) {
+            if (! array_key_exists($key, $oldToNewKeys)) {
+                $reorderedStmts[$key] = $stmt;
                 continue;
             }
 
             // reorder here
             $newKey = $oldToNewKeys[$key];
-            $node->stmts[$newKey] = $stmt;
+
+            $reorderedStmts[$newKey] = $stmt;
+        }
+
+        for ($i = 0; $i < $stmtCount; ++$i) {
+            if (! array_key_exists($i, $reorderedStmts)) {
+                continue;
+            }
+
+            $node->stmts[$i] = $reorderedStmts[$i];
         }
 
         return $node;

rules/order/tests/Rector/Class_/OrderPropertyByComplexityRector/Fixture/complex_types.php.inc

@@ -0,0 +1,102 @@
+<?php
+
+namespace Rector\Order\Tests\Rector\Class_\OrderPropertyByComplexityRector\Fixture;
+
+use Rector\Order\Tests\Rector\Class_\OrderPropertyByComplexityRector\Source\AnotherSimpleType;
+use Rector\Order\Tests\Rector\Class_\OrderPropertyByComplexityRector\Source\ComplexType;
+
+class ComplexTypes
+{
+    /**
+     * Static cache
+     *
+     * @var string[][]
+     */
+    private static $arrayOfStringsNested = [];
+
+    /**
+     * @var int
+     */
+    private $integer;
+
+    /**
+     * @var ComplexType
+     */
+    private $anotherObject;
+
+    /**
+     * @var string[]
+     */
+    private $arrayOfStrings = [];
+
+    /**
+     * @var AnotherSimpleType
+     */
+    private $someObject;
+
+    /**
+     * @var mixed[]
+     *
+     * Rich information about methods, e.g.:
+     *
+     *  0 => array (6)
+     *     |  start => 18
+     *     |  visibility => "public" (6)
+     *     |  static => FALSE
+     *     |  type => "method" (6)
+     *     |  name => "secondMethod" (12)
+     *     |  end => 29
+     */
+    private $arrayOfMixedPlusContent = [];
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Order\Tests\Rector\Class_\OrderPropertyByComplexityRector\Fixture;
+
+use Rector\Order\Tests\Rector\Class_\OrderPropertyByComplexityRector\Source\AnotherSimpleType;
+use Rector\Order\Tests\Rector\Class_\OrderPropertyByComplexityRector\Source\ComplexType;
+
+class ComplexTypes
+{
+    /**
+     * @var int
+     */
+    private $integer;
+    /**
+     * Static cache
+     *
+     * @var string[][]
+     */
+    private static $arrayOfStringsNested = [];
+    /**
+     * @var string[]
+     */
+    private $arrayOfStrings = [];
+    /**
+     * @var mixed[]
+     *
+     * Rich information about methods, e.g.:
+     *
+     *  0 => array (6)
+     *     |  start => 18
+     *     |  visibility => "public" (6)
+     *     |  static => FALSE
+     *     |  type => "method" (6)
+     *     |  name => "secondMethod" (12)
+     *     |  end => 29
+     */
+    private $arrayOfMixedPlusContent = [];
+    /**
+     * @var ComplexType
+     */
+    private $anotherObject;
+    /**
+     * @var AnotherSimpleType
+     */
+    private $someObject;
+}
+
+?>