added Stringable object support (#229)

Co-authored-by: Markus Staab <[email protected]>

Author: staabm

.phpstan-dba.cache

@@ -13,12 +13,14 @@
 use PHPStan\Type\IntegerType;
 use PHPStan\Type\IntersectionType;
 use PHPStan\Type\MixedType;
+use PHPStan\Type\ObjectType;
 use PHPStan\Type\StringType;
 use PHPStan\Type\Type;
 use PHPStan\Type\UnionType;
 use PHPStan\Type\VerbosityLevel;
 use staabm\PHPStanDba\DbaException;
 use staabm\PHPStanDba\UnresolvableQueryException;
+use Stringable;
 
 /**
  * @internal
@@ -70,7 +72,7 @@ public static function simulateParamValueType(Type $paramType, bool $preparedPar
         }
 
         $stringType = new StringType();
-        if ($stringType->isSuperTypeOf($paramType)->yes()) {
+        if ($stringType->isSuperTypeOf($paramType)->yes() || $paramType instanceof ObjectType && $paramType->isInstanceOf(Stringable::class)->yes()) {
             // in a prepared context, regular strings are fine
             if (true === $preparedParam) {
                 return '1';

.phpunit-phpstan-dba.cache

@@ -0,0 +1,11 @@
+<?php
+
+namespace staabm\PHPStanDba\Tests\Fixture;
+
+class StringableObject
+{
+    public function __toString()
+    {
+        return 'foo';
+    }
+}

src/QueryReflection/QuerySimulation.php

@@ -5,6 +5,7 @@
 use Doctrine\DBAL\Cache\QueryCacheProfile;
 use Doctrine\DBAL\Connection;
 use function PHPStan\Testing\assertType;
+use staabm\PHPStanDba\Tests\Fixture\StringableObject;
 
 class Foo
 {
@@ -149,4 +150,11 @@ public function fetchAllKeyValue(Connection $conn)
         $fetchResult = $conn->fetchAllKeyValue($query, [1]);
         assertType('array<string, int<0, 4294967295>>', $fetchResult);
     }
+
+    public function fetchStringable(Connection $conn)
+    {
+        $query = 'SELECT email, adaid, gesperrt, freigabe1u1 FROM ada WHERE email = ?';
+        $fetchResult = $conn->fetchAllKeyValue($query, [new StringableObject()]);
+        assertType('array<string, int<0, 4294967295>>', $fetchResult);
+    }
 }