Bugfix: resolve issue with multiline descriptions

psalm.xml

@@ -44,6 +44,7 @@
         <NoInterfaceProperties>
             <errorLevel type="info">
                 <file name="src/DocBlock/Tags/Factory/ParamFactory.php"/>
+                <file name="src/DocBlock/Tags/Factory/AbstractPHPStanFactory.php"/>
             </errorLevel>
         </NoInterfaceProperties>
 

src/DocBlock/Tags/Factory/AbstractPHPStanFactory.php

@@ -23,6 +23,8 @@
 use PHPStan\PhpDocParser\Parser\TypeParser;
 use RuntimeException;
 
+use function property_exists;
+
 /**
  * Factory class creating tags using phpstan's parser
  *
@@ -48,8 +50,11 @@ public function __construct(PHPStanFactory ...$factories)
 
     public function create(string $tagLine, ?TypeContext $context = null): Tag
     {
-        $tokens = $this->lexer->tokenize($tagLine);
-        $ast = $this->parser->parseTag(new TokenIterator($tokens));
+        $tokens = new TokenIterator($this->lexer->tokenize($tagLine));
+        $ast = $this->parser->parseTag($tokens);
+        if (property_exists($ast->value, 'description') === true) {
+            $ast->value->setAttribute('description', $ast->value->description . $tokens->joinUntil(Lexer::TOKEN_END));
+        }
 
         if ($context === null) {
             $context = new TypeContext('');

src/DocBlock/Tags/Factory/ParamFactory.php

@@ -19,6 +19,7 @@
 use PHPStan\PhpDocParser\Ast\Type\OffsetAccessTypeNode;
 use Webmozart\Assert\Assert;
 
+use function is_string;
 use function sprintf;
 use function trim;
 
@@ -68,11 +69,16 @@ public function create(PhpDocTagNode $node, Context $context): Tag
             );
         }
 
+        $description = $tagValue->getAttribute('description');
+        if (is_string($description) === false) {
+            $description = $tagValue->description;
+        }
+
         return new Param(
             trim($tagValue->parameterName, '$'),
             $this->typeResolver->createType($tagValue->type ?? new IdentifierTypeNode('mixed'), $context),
             $tagValue->isVariadic,
-            $this->descriptionFactory->create($tagValue->description, $context),
+            $this->descriptionFactory->create($description, $context),
             $tagValue->isReference
         );
     }

src/DocBlock/Tags/Factory/PropertyFactory.php

@@ -13,6 +13,7 @@
 use PHPStan\PhpDocParser\Ast\PhpDoc\PropertyTagValueNode;
 use Webmozart\Assert\Assert;
 
+use function is_string;
 use function trim;
 
 /**
@@ -34,10 +35,15 @@ public function create(PhpDocTagNode $node, Context $context): Tag
         $tagValue = $node->value;
         Assert::isInstanceOf($tagValue, PropertyTagValueNode::class);
 
+        $description = $tagValue->getAttribute('description');
+        if (is_string($description) === false) {
+            $description = $tagValue->description;
+        }
+
         return new Property(
             trim($tagValue->propertyName, '$'),
             $this->typeResolver->createType($tagValue->type, $context),
-            $this->descriptionFactory->create($tagValue->description, $context)
+            $this->descriptionFactory->create($description, $context)
         );
     }
 

src/DocBlock/Tags/Factory/PropertyReadFactory.php

@@ -13,6 +13,7 @@
 use PHPStan\PhpDocParser\Ast\PhpDoc\PropertyTagValueNode;
 use Webmozart\Assert\Assert;
 
+use function is_string;
 use function trim;
 
 /**
@@ -34,10 +35,15 @@ public function create(PhpDocTagNode $node, Context $context): Tag
         $tagValue = $node->value;
         Assert::isInstanceOf($tagValue, PropertyTagValueNode::class);
 
+        $description = $tagValue->getAttribute('description');
+        if (is_string($description) === false) {
+            $description = $tagValue->description;
+        }
+
         return new PropertyRead(
             trim($tagValue->propertyName, '$'),
             $this->typeResolver->createType($tagValue->type, $context),
-            $this->descriptionFactory->create($tagValue->description, $context)
+            $this->descriptionFactory->create($description, $context)
         );
     }
 

src/DocBlock/Tags/Factory/PropertyWriteFactory.php

@@ -13,6 +13,7 @@
 use PHPStan\PhpDocParser\Ast\PhpDoc\PropertyTagValueNode;
 use Webmozart\Assert\Assert;
 
+use function is_string;
 use function trim;
 
 /**
@@ -34,10 +35,15 @@ public function create(PhpDocTagNode $node, Context $context): Tag
         $tagValue = $node->value;
         Assert::isInstanceOf($tagValue, PropertyTagValueNode::class);
 
+        $description = $tagValue->getAttribute('description');
+        if (is_string($description) === false) {
+            $description = $tagValue->description;
+        }
+
         return new PropertyWrite(
             trim($tagValue->propertyName, '$'),
             $this->typeResolver->createType($tagValue->type, $context),
-            $this->descriptionFactory->create($tagValue->description, $context)
+            $this->descriptionFactory->create($description, $context)
         );
     }
 

src/DocBlock/Tags/Factory/ReturnFactory.php

@@ -13,6 +13,8 @@
 use PHPStan\PhpDocParser\Ast\PhpDoc\ReturnTagValueNode;
 use Webmozart\Assert\Assert;
 
+use function is_string;
+
 /**
  * @internal This class is not part of the BC promise of this library.
  */
@@ -32,9 +34,14 @@ public function create(PhpDocTagNode $node, Context $context): Tag
         $tagValue = $node->value;
         Assert::isInstanceOf($tagValue, ReturnTagValueNode::class);
 
+        $description = $tagValue->getAttribute('description');
+        if (is_string($description) === false) {
+            $description = $tagValue->description;
+        }
+
         return new Return_(
             $this->typeResolver->createType($tagValue->type, $context),
-            $this->descriptionFactory->create($tagValue->description, $context)
+            $this->descriptionFactory->create($description, $context)
         );
     }
 

src/DocBlock/Tags/Factory/VarFactory.php

@@ -13,6 +13,7 @@
 use PHPStan\PhpDocParser\Ast\PhpDoc\VarTagValueNode;
 use Webmozart\Assert\Assert;
 
+use function is_string;
 use function trim;
 
 /**
@@ -34,10 +35,15 @@ public function create(PhpDocTagNode $node, Context $context): Tag
         $tagValue = $node->value;
         Assert::isInstanceOf($tagValue, VarTagValueNode::class);
 
+        $description = $tagValue->getAttribute('description');
+        if (is_string($description) === false) {
+            $description = $tagValue->description;
+        }
+
         return new Var_(
             trim($tagValue->variableName, '$'),
             $this->typeResolver->createType($tagValue->type, $context),
-            $this->descriptionFactory->create($tagValue->description, $context)
+            $this->descriptionFactory->create($description, $context)
         );
     }
 

tests/integration/InterpretingDocBlocksTest.php

@@ -17,16 +17,21 @@
 use phpDocumentor\Reflection\DocBlock\Description;
 use phpDocumentor\Reflection\DocBlock\StandardTagFactory;
 use phpDocumentor\Reflection\DocBlock\Tag;
+use phpDocumentor\Reflection\DocBlock\Tags\Generic;
 use phpDocumentor\Reflection\DocBlock\Tags\InvalidTag;
 use phpDocumentor\Reflection\DocBlock\Tags\Method;
 use phpDocumentor\Reflection\DocBlock\Tags\MethodParameter;
 use phpDocumentor\Reflection\DocBlock\Tags\Param;
 use phpDocumentor\Reflection\DocBlock\Tags\Return_;
 use phpDocumentor\Reflection\DocBlock\Tags\See;
+use phpDocumentor\Reflection\DocBlock\Tags\Since;
 use phpDocumentor\Reflection\PseudoTypes\ConstExpression;
 use phpDocumentor\Reflection\Types\Array_;
+use phpDocumentor\Reflection\Types\Compound;
+use phpDocumentor\Reflection\Types\Context;
 use phpDocumentor\Reflection\Types\Integer;
 use phpDocumentor\Reflection\Types\Mixed_;
+use phpDocumentor\Reflection\Types\Object_;
 use phpDocumentor\Reflection\Types\Self_;
 use phpDocumentor\Reflection\Types\String_;
 use phpDocumentor\Reflection\Types\Void_;
@@ -123,8 +128,8 @@ public function testInterpretingTags(): void
         $this->assertInstanceOf(See::class, $seeTags[0]);
 
         $seeTag = $seeTags[0];
-        $this->assertSame('\\' . StandardTagFactory::class, (string) $seeTag->getReference());
-        $this->assertSame('', (string) $seeTag->getDescription());
+        $this->assertSame('\\' . StandardTagFactory::class, (string)$seeTag->getReference());
+        $this->assertSame('', (string)$seeTag->getDescription());
     }
 
     public function testDescriptionsCanEscapeAtSignsAndClosingBraces(): void
@@ -268,4 +273,95 @@ public function testConstantReferenceTypes(): void
             $docblock->getTags()
         );
     }
+
+    public function testRegressionWordpressDocblocks(): void
+    {
+        $docCommment = <<<DOC
+    /**
+     * Install a package.
+     *
+     * Copies the contents of a package from a source directory, and installs them in
+     * a destination directory. Optionally removes the source. It can also optionally
+     * clear out the destination folder if it already exists.
+     *
+     * @since 2.8.0
+     * @since 6.2.0 Use move_dir() instead of copy_dir() when possible.
+     *
+     * @global WP_Filesystem_Base \$wp_filesystem        WordPress filesystem subclass.
+     * @global array              \$wp_theme_directories
+     *
+     * @param array|string \$args {
+     *     Optional. Array or string of arguments for installing a package. Default empty array.
+     *
+     *     @type string \$source                      Required path to the package source. Default empty.
+     *     @type string \$destination                 Required path to a folder to install the package in.
+     *                                               Default empty.
+     *     @type bool   \$clear_destination           Whether to delete any files already in the destination
+     *                                               folder. Default false.
+     *     @type bool   \$clear_working               Whether to delete the files from the working directory
+     *                                               after copying them to the destination. Default false.
+     *     @type bool   \$abort_if_destination_exists Whether to abort the installation if
+     *                                               the destination folder already exists. Default true.
+     *     @type array  \$hook_extra                  Extra arguments to pass to the filter hooks called by
+     *                                               WP_Upgrader::install_package(). Default empty array.
+     * }
+     *
+     * @return array|WP_Error The result (also stored in `WP_Upgrader::\$result`), or a WP_Error on failure.
+     */
+DOC;
+
+        $factory = DocBlockFactory::createInstance();
+        $docblock = $factory->create($docCommment);
+
+        self::assertEquals(
+            new DocBlock(
+                'Install a package.',
+                new Description(
+                    'Copies the contents of a package from a source directory, and installs them in' . PHP_EOL .
+                    'a destination directory. Optionally removes the source. It can also optionally' . PHP_EOL .
+                    'clear out the destination folder if it already exists.'
+                ),
+                [
+                    new Since('2.8.0', new Description('')),
+                    new Since('6.2.0', new Description('Use move_dir() instead of copy_dir() when possible.')),
+                    new Generic(
+                        'global',
+                        new Description('WP_Filesystem_Base $wp_filesystem        WordPress filesystem subclass.')
+                    ),
+                    new Generic(
+                        'global',
+                        new Description('array              $wp_theme_directories')
+                    ),
+                    new Param(
+                        'args',
+                        new Compound([new Array_(new Mixed_()), new String_()]),
+                        false,
+                        new Description(
+                            '{' . "\n" .
+                            'Optional. Array or string of arguments for installing a package. Default empty array.' . "\n" .
+                            "\n" .
+                            '    @type string $source                      Required path to the package source. Default empty.' . "\n" .
+                            '    @type string $destination                 Required path to a folder to install the package in.' . "\n" .
+                            '                                              Default empty.' . "\n" .
+                            '    @type bool   $clear_destination           Whether to delete any files already in the destination' . "\n" .
+                            '                                              folder. Default false.' . "\n" .
+                            '    @type bool   $clear_working               Whether to delete the files from the working directory' . "\n" .
+                            '                                              after copying them to the destination. Default false.' . "\n" .
+                            '    @type bool   $abort_if_destination_exists Whether to abort the installation if' . "\n" .
+                            '                                              the destination folder already exists. Default true.' . "\n" .
+                            '    @type array  $hook_extra                  Extra arguments to pass to the filter hooks called by' . "\n" .
+                            '                                              WP_Upgrader::install_package(). Default empty array.' . "\n" .
+                            '}'
+                        )
+                    ),
+                    new Return_(
+                        new Compound([new Array_(new Mixed_()), new Object_(new Fqsen('\WP_Error'))]),
+                        new Description('The result (also stored in `WP_Upgrader::$result`), or a WP_Error on failure.')
+                    ),
+                ],
+                new Context('\\')
+            ),
+            $docblock
+        );
+    }
 }

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

@@ -26,6 +26,8 @@
 use PHPStan\PhpDocParser\Parser\TypeParser;
 use PHPUnit\Framework\TestCase;
 
+use function property_exists;
+
 abstract class TagFactoryTestCase extends TestCase
 {
     public function parseTag(string $tag): PhpDocTagNode
@@ -34,7 +36,12 @@ public function parseTag(string $tag): PhpDocTagNode
         $tokens = $lexer->tokenize($tag);
         $constParser = new ConstExprParser();
 
-        return (new PhpDocParser(new TypeParser($constParser), $constParser))->parseTag(new TokenIterator($tokens));
+        $tagNode = (new PhpDocParser(new TypeParser($constParser), $constParser))->parseTag(new TokenIterator($tokens));
+        if (property_exists($tagNode->value, 'description') === true) {
+            $tagNode->value->setAttribute('description', $tagNode->value->description);
+        }
+
+        return $tagNode;
     }
 
     public function giveTypeResolver(): TypeResolver