[master] support public readonly properties, fixes #27

src/Internal/ObjectExporter/AnyObjectExporter.php

@@ -44,10 +44,10 @@ public function export(object $object, \ReflectionObject $reflectionObject, arra
         $returnNewObject = ($reflectionObject->getConstructor() === null);
 
         while ($current) {
-            $publicProperties = [];
-            $nonPublicProperties = [];
-            $unsetPublicProperties = [];
-            $unsetNonPublicProperties = [];
+            $publicNonReadonlyProperties = [];
+            $nonPublicOrPublicReadonlyProperties = [];
+            $unsetPublicNonReadonlyProperties = [];
+            $unsetNonPublicOrPublicReadonlyProperties = [];
 
             foreach ($current->getProperties() as $property) {
                 if ($property->isStatic()) {
@@ -70,26 +70,26 @@ public function export(object $object, \ReflectionObject $reflectionObject, arra
                 if (array_key_exists($key, $objectAsArray)) {
                     $value = $objectAsArray[$key];
 
-                    if ($property->isPublic()) {
-                        $publicProperties[$name] = $value;
+                    if ($property->isPublic() && !(method_exists($property, 'isReadOnly') && $property->isReadOnly())) {
+                        $publicNonReadonlyProperties[$name] = $value;
                     } else {
-                        $nonPublicProperties[$name] = $value;
+                        $nonPublicOrPublicReadonlyProperties[$name] = $value;
                     }
                 } else {
-                    if ($property->isPublic()) {
-                        $unsetPublicProperties[] = $name;
+                    if ($property->isPublic() && !(method_exists($property, 'isReadOnly') && $property->isReadOnly())) {
+                        $unsetPublicNonReadonlyProperties[] = $name;
                     } else {
-                        $unsetNonPublicProperties[] = $name;
+                        $unsetNonPublicOrPublicReadonlyProperties[] = $name;
                     }
                 }
 
                 $returnNewObject = false;
             }
 
-            if ($publicProperties || $unsetPublicProperties) {
+            if ($publicNonReadonlyProperties || $unsetPublicNonReadonlyProperties) {
                 $lines[] = '';
 
-                foreach ($publicProperties as $name => $value) {
+                foreach ($publicNonReadonlyProperties as $name => $value) {
                     /** @psalm-suppress RedundantCast See: https://github.com/vimeo/psalm/issues/4891 */
                     $name = (string) $name;
 
@@ -104,19 +104,19 @@ public function export(object $object, \ReflectionObject $reflectionObject, arra
                     $lines = array_merge($lines, $exportedValue);
                 }
 
-                foreach ($unsetPublicProperties as $name) {
+                foreach ($unsetPublicNonReadonlyProperties as $name) {
                     $lines[] = 'unset($object->' . $this->escapePropName($name) . ');';
                 }
             }
 
-            if ($nonPublicProperties || $unsetNonPublicProperties) {
+            if ($nonPublicOrPublicReadonlyProperties || $unsetNonPublicOrPublicReadonlyProperties) {
                 $closureLines = [];
 
                 if ($this->exporter->addTypeHints) {
                     $closureLines[] = '/** @var \\' . $current->getName() . ' $this */';
                 }
 
-                foreach ($nonPublicProperties as $name => $value) {
+                foreach ($nonPublicOrPublicReadonlyProperties as $name => $value) {
                     $newPath = $path;
                     $newPath[] = $name;
 
@@ -128,7 +128,7 @@ public function export(object $object, \ReflectionObject $reflectionObject, arra
                     $closureLines = array_merge($closureLines, $exportedValue);
                 }
 
-                foreach ($unsetNonPublicProperties as $name) {
+                foreach ($unsetNonPublicOrPublicReadonlyProperties as $name) {
                     $closureLines[] = 'unset($this->' . $this->escapePropName($name) . ');';
                 }
 

src/Internal/ObjectExporter/EnumExporter.php

@@ -18,16 +18,11 @@ class EnumExporter extends ObjectExporter
      * {@inheritDoc}
      *
      * See: https://github.com/vimeo/psalm/pull/8117
-     * @psalm-suppress MixedInferredReturnType
-     * @psalm-suppress MixedReturnStatement
+     * @psalm-suppress RedundantCondition
      */
     public function supports(\ReflectionObject $reflectionObject) : bool
     {
-        if (! method_exists($reflectionObject, 'isEnum')) {
-            return false;
-        }
-
-        return $reflectionObject->isEnum();
+        return method_exists($reflectionObject, 'isEnum') && $reflectionObject->isEnum();
     }
 
     /**

tests/Classes/PublicReadonlyPropertiesWithoutConstructor.php

@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Brick\VarExporter\Tests\Classes;
+
+class PublicReadonlyPropertiesWithoutConstructor
+{
+    public readonly string $foo;
+    private readonly string $bar;
+    public string $baz;
+}

tests/Classes/ReadonlyPropertiesWithConstructor.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Brick\VarExporter\Tests\Classes;
+
+class ReadonlyPropertiesWithConstructor
+{
+    public function __construct(
+        public readonly string $foo,
+        private readonly string $bar,
+        public string $baz
+    ) {
+    }
+}

tests/ExportObjectTest.php

@@ -6,11 +6,13 @@
 
 use Brick\VarExporter\Tests\Classes\ConstructorAndNoProperties;
 use Brick\VarExporter\Tests\Classes\Enum;
-use Brick\VarExporter\Tests\Classes\NoProperties;
 use Brick\VarExporter\Tests\Classes\Hierarchy;
-use Brick\VarExporter\Tests\Classes\PublicPropertiesWithConstructor;
+use Brick\VarExporter\Tests\Classes\NoProperties;
 use Brick\VarExporter\Tests\Classes\PrivateConstructor;
 use Brick\VarExporter\Tests\Classes\PublicPropertiesOnly;
+use Brick\VarExporter\Tests\Classes\PublicPropertiesWithConstructor;
+use Brick\VarExporter\Tests\Classes\ReadonlyPropertiesWithConstructor;
+use Brick\VarExporter\Tests\Classes\PublicReadonlyPropertiesWithoutConstructor;
 use Brick\VarExporter\Tests\Classes\SerializeMagicMethods;
 use Brick\VarExporter\Tests\Classes\SerializeMagicMethodsWithConstructor;
 use Brick\VarExporter\Tests\Classes\SetState;
@@ -329,6 +331,61 @@ public function testExportClassWithPublicPropertiesAndConstructor(): void
         $this->assertExportEquals($expected, $object);
     }
 
+    /**
+     * @requires PHP 8.1
+     */
+    public function testExportClassWithReadonlyPublicPropertiesAndConstructor(): void
+    {
+        $object = new ReadonlyPropertiesWithConstructor('public readonly', 'private readonly', 'public');
+
+        $expected = <<<'PHP'
+(static function() {
+    $class = new \ReflectionClass(\Brick\VarExporter\Tests\Classes\ReadonlyPropertiesWithConstructor::class);
+    $object = $class->newInstanceWithoutConstructor();
+
+    $object->baz = 'public';
+
+    (function() {
+        $this->foo = 'public readonly';
+        $this->bar = 'private readonly';
+    })->bindTo($object, \Brick\VarExporter\Tests\Classes\ReadonlyPropertiesWithConstructor::class)();
+
+    return $object;
+})()
+PHP;
+
+        $this->assertExportEquals($expected, $object);
+    }
+
+    /**
+     * @requires PHP 8.1
+     */
+    public function testExportClassWithStateAndReadonlyPublicProperties(): void
+    {
+        $object = new PublicReadonlyPropertiesWithoutConstructor();
+
+        (function () {
+            $this->foo = 'foo';
+        })->bindTo($object, PublicReadonlyPropertiesWithoutConstructor::class)();
+
+        $expected = <<<'PHP'
+(static function() {
+    $object = new \Brick\VarExporter\Tests\Classes\PublicReadonlyPropertiesWithoutConstructor;
+
+    unset($object->baz);
+
+    (function() {
+        $this->foo = 'foo';
+        unset($this->bar);
+    })->bindTo($object, \Brick\VarExporter\Tests\Classes\PublicReadonlyPropertiesWithoutConstructor::class)();
+
+    return $object;
+})()
+PHP;
+
+        $this->assertExportEquals($expected, $object);
+    }
+
     public function testExportClassWithSerializeMagicMethods(): void
     {
         $object = new SerializeMagicMethods;