symfony
diff --git a/‎src/Symfony/Component/Yaml/Inline.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Yaml/Inline.php
+4Lines changed: 4 additions & 0 deletions b/‎src/Symfony/Component/Yaml/Inline.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Yaml/Inline.php
+4Lines changed: 4 additions & 0 deletions
diff --git a/‎src/Symfony/Component/Yaml/Tests/InlineTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Yaml/Tests/InlineTest.php
+1Lines changed: 1 addition & 0 deletions b/‎src/Symfony/Component/Yaml/Tests/InlineTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Yaml/Tests/InlineTest.php
+1Lines changed: 1 addition & 0 deletions
@@ -60,6 +60,10 @@ public static function initialize(int $flags, int $parsedLineNumber = null, stri
      */
     public static function parse(string $value = null, int $flags = 0, array &$references = [])
     {
+        if (null === $value) {
+            return '';
+        }
+
         self::initialize($flags);
 
         $value = trim($value);
 
@@ -288,6 +288,7 @@ public static function getTestsForParse()
     {
         return [
             ['', ''],
+            [null, ''],
             ['null', null],
             ['false', false],
             ['true', true],
Original file line number	Diff line number	Diff line change
`@@ -288,6 +288,7 @@ public static function getTestsForParse()`
`288`	`288`	`{`
`289`	`289`	`return [`
`290`	`290`	`['', ''],`
	`291`	`+ [null, ''],`
`291`	`292`	`['null', null],`
`292`	`293`	`['false', false],`
`293`	`294`	`['true', true],`