Cache ObjectAccess::forContext() using ScopedCache

src/Encoder/ObjectAccess.php

@@ -3,6 +3,8 @@
 
 namespace Soap\Encoding\Encoder;
 
+use Soap\Encoding\Cache\ScopedCache;
+use Soap\Encoding\EncoderRegistry;
 use Soap\Encoding\Normalizer\PhpPropertyNameNormalizer;
 use Soap\Encoding\TypeInference\ComplexTypeBuilder;
 use Soap\Engine\Metadata\Model\Property;
@@ -32,7 +34,34 @@ public function __construct(
     ) {
     }
 
+    /**
+     * @return ScopedCache<EncoderRegistry, self>
+     *
+     * @psalm-suppress LessSpecificReturnStatement, MoreSpecificReturnType, MixedReturnStatement
+     */
+    private static function cache(): ScopedCache
+    {
+        static $cache = new ScopedCache();
+
+        return $cache;
+    }
+
+    private static function cacheKey(Context $context): string
+    {
+        return $context->type->getXmlNamespace() . '|' . $context->type->getName()
+            . '|' . $context->bindingUse->value;
+    }
+
     public static function forContext(Context $context): self
+    {
+        return self::cache()->lookup(
+            $context->registry,
+            self::cacheKey($context),
+            static fn (): self => self::build($context)
+        );
+    }
+
+    private static function build(Context $context): self
     {
         $type = ComplexTypeBuilder::default()($context);
 

tests/Unit/Encoder/ObjectAccessCacheTest.php

@@ -0,0 +1,101 @@
+<?php
+declare(strict_types=1);
+
+namespace Soap\Encoding\Test\Unit\Encoder;
+
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\TestCase;
+use Soap\Encoding\Encoder\Context;
+use Soap\Encoding\Encoder\ObjectAccess;
+use Soap\Encoding\EncoderRegistry;
+use Soap\Encoding\Test\Unit\ContextCreatorTrait;
+use Soap\WsdlReader\Model\Definitions\BindingUse;
+
+/**
+ * Verifies that ObjectAccess::forContext() cache returns correct results
+ * when the same type is used with different contexts.
+ */
+#[CoversClass(ObjectAccess::class)]
+final class ObjectAccessCacheTest extends TestCase
+{
+    use ContextCreatorTrait;
+
+    private const SCHEMA = <<<'EOXML'
+    <complexType name="testType">
+        <sequence>
+            <element name="name" type="xsd:string"/>
+            <element name="value" type="xsd:int"/>
+        </sequence>
+    </complexType>
+    EOXML;
+
+    /**
+     * Same type with literal vs encoded binding must produce different ObjectAccess
+     * instances (the isos capture bindingUse-dependent behavior).
+     */
+    public function test_different_binding_use_produces_different_object_access(): void
+    {
+        $metadata = self::createMetadataFromWsdl(self::SCHEMA, 'type="tns:testType"');
+        $type = $metadata->getTypes()->fetchFirstByName('testType');
+        $registry = EncoderRegistry::default();
+        $namespaces = self::buildNamespaces();
+
+        $literalContext = new Context($type->getXsdType(), $metadata, $registry, $namespaces, BindingUse::LITERAL);
+        $encodedContext = new Context($type->getXsdType(), $metadata, $registry, $namespaces, BindingUse::ENCODED);
+
+        $literalAccess = ObjectAccess::forContext($literalContext);
+        $encodedAccess = ObjectAccess::forContext($encodedContext);
+
+        // Both should have the same properties
+        static::assertSame(
+            array_keys($literalAccess->properties),
+            array_keys($encodedAccess->properties)
+        );
+
+        // But they must be different instances (different isos due to bindingUse)
+        static::assertNotSame($literalAccess, $encodedAccess);
+
+        // Encoded adds xsi:type attribute, literal does not
+        $literalXml = $literalAccess->isos['name']->to('hello');
+        $encodedXml = $encodedAccess->isos['name']->to('hello');
+
+        static::assertStringNotContainsString('xsi:type', $literalXml);
+        static::assertStringContainsString('xsi:type', $encodedXml);
+    }
+
+    /**
+     * Same type on different registries must not share cache entries.
+     */
+    public function test_different_registries_produce_separate_cache_entries(): void
+    {
+        $metadata = self::createMetadataFromWsdl(self::SCHEMA, 'type="tns:testType"');
+        $type = $metadata->getTypes()->fetchFirstByName('testType');
+        $namespaces = self::buildNamespaces();
+
+        $context1 = new Context($type->getXsdType(), $metadata, EncoderRegistry::default(), $namespaces);
+        $context2 = new Context($type->getXsdType(), $metadata, EncoderRegistry::default(), $namespaces);
+
+        static::assertNotSame($context1->registry, $context2->registry);
+
+        $access1 = ObjectAccess::forContext($context1);
+        $access2 = ObjectAccess::forContext($context2);
+
+        // Both valid, same structure, but different instances (different registries)
+        static::assertNotSame($access1, $access2);
+        static::assertSame(array_keys($access1->properties), array_keys($access2->properties));
+    }
+
+    /**
+     * Repeated calls with the same context return the cached instance.
+     */
+    public function test_same_context_returns_cached_instance(): void
+    {
+        $metadata = self::createMetadataFromWsdl(self::SCHEMA, 'type="tns:testType"');
+        $context = self::createContextFromMetadata($metadata, 'testType');
+
+        $access1 = ObjectAccess::forContext($context);
+        $access2 = ObjectAccess::forContext($context);
+
+        static::assertSame($access1, $access2);
+    }
+}