Add typeless parameter support.

src/DocBlock/Tags/Factory/ParamFactory.php

@@ -9,8 +9,10 @@ use phpDocumentor\Reflection\DocBlock\Tag;
 use phpDocumentor\Reflection\DocBlock\Tags\Param;
 use phpDocumentor\Reflection\TypeResolver;
 use phpDocumentor\Reflection\Types\Context;
+use PHPStan\PhpDocParser\Ast\PhpDoc\InvalidTagValueNode;
 use PHPStan\PhpDocParser\Ast\PhpDoc\ParamTagValueNode;
 use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocTagNode;
+use PHPStan\PhpDocParser\Ast\PhpDoc\TypelessParamTagValueNode;
 use Webmozart\Assert\Assert;
 
 use function trim;
@@ -32,7 +34,13 @@ final class ParamFactory implements PHPStanFactory
     public function create(PhpDocTagNode $node, Context $context): Tag
     {
         $tagValue = $node->value;
-        Assert::isInstanceOf($tagValue, ParamTagValueNode::class);
+        Assert::isInstanceOfAny(
+            $tagValue,
+            [
+                ParamTagValueNode::class,
+                TypelessParamTagValueNode::class
+            ]
+        );
 
         return new Param(
             trim($tagValue->parameterName, '$'),
@@ -45,6 +53,7 @@ final class ParamFactory implements PHPStanFactory
 
     public function supports(PhpDocTagNode $node, Context $context): bool
     {
-        return $node->value instanceof ParamTagValueNode;
+        return $node->value instanceof ParamTagValueNode
+            || $node->value instanceof TypelessParamTagValueNode;
     }
 }

tests/integration/InterpretingDocBlocksTest.php

@@ -217,6 +217,5 @@ DOC;
             ],
             $docblock->getTags()
         );
-
     }
 }

tests/unit/DocBlock/Tags/Factory/ParamFactoryTest.php

@@ -16,6 +16,8 @@ namespace phpDocumentor\Reflection\DocBlock\Tags\Factory;
 use phpDocumentor\Reflection\DocBlock\Description;
 use phpDocumentor\Reflection\DocBlock\Tags\Param;
 use phpDocumentor\Reflection\Types\Context;
+use phpDocumentor\Reflection\Types\Integer;
+use phpDocumentor\Reflection\Types\Mixed_;
 use phpDocumentor\Reflection\Types\String_;
 
 final class ParamFactoryTest extends TagFactoryTestCase
@@ -24,23 +26,77 @@ final class ParamFactoryTest extends TagFactoryTestCase
      * @covers \phpDocumentor\Reflection\DocBlock\Tags\Factory\ParamFactory::__construct
      * @covers \phpDocumentor\Reflection\DocBlock\Tags\Factory\ParamFactory::create
      * @covers \phpDocumentor\Reflection\DocBlock\Tags\Factory\ParamFactory::supports
+     * @dataProvider paramInputProvider
      */
-    public function testParamIsCreated(): void
+    public function testParamIsCreated(string $input, Param $expected): void
     {
-        $ast = $this->parseTag('@param string $var');
+        $ast = $this->parseTag($input);
         $factory = new ParamFactory($this->giveTypeResolver(), $this->givenDescriptionFactory());
         $context = new Context('global');
 
         self::assertTrue($factory->supports($ast, $context));
         self::assertEquals(
-            new Param(
+            $expected,
-                'var',
-                new String_(),
-                false,
-                new Description(''),
-                false
-            ),
             $factory->create($ast, $context)
         );
     }
+
+    /**
+     * @return array<array-key, string|Param>
+     */
+    public function paramInputProvider(): array
+    {
+        return [
+            [
+                '@param string $var',
+                new Param(
+                    'var',
+                    new String_(),
+                    false,
+                    new Description(''),
+                    false
+                ),
+            ],
+            [
+                '@param $param8 Description 4',
+                new Param(
+                    'param8',
+                    new Mixed_(),
+                    false,
+                    new Description('Description 4'),
+                    false
+                ),
+            ],
+            [
+                '@param $param9',
+                new Param(
+                    'param9',
+                    new Mixed_(),
+                    false,
+                    new Description(''),
+                    false
+                ),
+            ],
+            [
+                '@param int My Description',
+                new Param(
+                    null,
+                    new Integer(),
+                    false,
+                    new Description('My Description'),
+                    false
+                ),
+            ],
+            [
+                '@param foo',
+                new Param(
+                    null,
+                    new Mixed_(),
+                    false,
+                    new Description(''),
+                    false
+                ),
+            ],
+        ];
+    }
 }

tests/unit/DocBlock/Tags/Factory/TagFactoryTestCase.php

@@ -45,7 +45,7 @@ abstract class TagFactoryTestCase extends TestCase
     public function givenDescriptionFactory(): DescriptionFactory
     {
         $factory =  m::mock(DescriptionFactory::class);
-        $factory->shouldReceive('create')->andReturn(new Description(''));
+        $factory->shouldReceive('create')->andReturnUsing(static fn ($args) => new Description($args));
 
         return $factory;
     }

tests/unit/DocBlock/Tags/Factory/VarFactoryTest.php

@@ -25,7 +25,7 @@ final class VarFactoryTest extends TagFactoryTestCase
      * @covers \phpDocumentor\Reflection\DocBlock\Tags\Factory\VarFactory::create
      * @covers \phpDocumentor\Reflection\DocBlock\Tags\Factory\VarFactory::supports
      */
-    public function testParamIsCreated(): void
+    public function testVarIsCreated(): void
     {
         $ast = $this->parseTag('@var string $var');
         $factory = new VarFactory($this->giveTypeResolver(), $this->givenDescriptionFactory());