Improve exceptions

src/Exception/NonPrintableNodeException.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace TypeLang\Printer\Exception;
+
+use TypeLang\Parser\Node\Node;
+
+class NonPrintableNodeException extends \InvalidArgumentException implements PrinterExceptionInterface
+{
+    final public const CODE_INVALID_NODE = 0x01;
+
+    public const CODE_LAST = self::CODE_INVALID_NODE;
+
+    final public function __construct(string $message, int $code = 0, ?\Throwable $previous = null)
+    {
+        parent::__construct($message, $code, $previous);
+    }
+
+    public static function fromInvalidNode(Node $node): self
+    {
+        $message = \sprintf('Could not print unknown node "%s"', $node::class);
+
+        return new static($message, self::CODE_INVALID_NODE);
+    }
+}

src/Exception/PrinterExceptionInterface.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace TypeLang\Printer\Exception;
+
+interface PrinterExceptionInterface extends \Throwable
+{
+}

src/NativeTypePrinter.php

@@ -4,7 +4,6 @@
 
 namespace TypeLang\Printer;
 
-use TypeLang\Parser\Node\Statement;
 use TypeLang\Parser\Node\Type\CallableTypeNode;
 use TypeLang\Parser\Node\Type\ClassConstMaskNode;
 use TypeLang\Parser\Node\Type\ClassConstNode;

src/PrettyPrinter.php

@@ -26,6 +26,7 @@
 use TypeLang\Parser\Node\Type\TypeStatement;
 use TypeLang\Parser\Node\Type\UnionTypeNode;
 use TypeLang\Parser\Traverser;
+use TypeLang\Printer\Exception\NonPrintableNodeException;
 
 class PrettyPrinter extends Printer
 {
@@ -102,9 +103,7 @@ protected function make(Statement $stmt): string
             $stmt instanceof UnionTypeNode => $this->printUnionTypeNode($stmt),
             $stmt instanceof IntersectionTypeNode => $this->printIntersectionTypeNode($stmt),
             $stmt instanceof NullableTypeNode => $this->printNullableType($stmt),
-            default => throw new \InvalidArgumentException(
-                \sprintf('Non-printable node "%s"', $stmt::class),
-            ),
+            default => throw NonPrintableNodeException::fromInvalidNode($stmt),
         };
     }