symfony
diff --git a/‎src/Symfony/Component/Validator/Constraints/ExpressionLanguageSyntax.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Validator/Constraints/ExpressionLanguageSyntax.php
+1-1Lines changed: 1 addition & 1 deletion b/‎src/Symfony/Component/Validator/Constraints/ExpressionLanguageSyntax.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Validator/Constraints/ExpressionLanguageSyntax.php
+1-1Lines changed: 1 addition & 1 deletion
diff --git a/‎src/Symfony/Component/Validator/Constraints/ExpressionLanguageSyntaxValidator.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Validator/Constraints/ExpressionLanguageSyntaxValidator.php
+5-1Lines changed: 5 additions & 1 deletion b/‎src/Symfony/Component/Validator/Constraints/ExpressionLanguageSyntaxValidator.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Validator/Constraints/ExpressionLanguageSyntaxValidator.php
+5-1Lines changed: 5 additions & 1 deletion
@@ -37,6 +37,6 @@ class ExpressionLanguageSyntax extends Constraint
      */
     public function validatedBy()
     {
-        return $this->service;
+        return $this->service ?? static::class.'Validator';
     }
 }
@@ -24,7 +24,7 @@ class ExpressionLanguageSyntaxValidator extends ConstraintValidator
 {
     private $expressionLanguage;
 
-    public function __construct(ExpressionLanguage $expressionLanguage)
+    public function __construct(ExpressionLanguage $expressionLanguage = null)
     {
         $this->expressionLanguage = $expressionLanguage;
     }
@@ -42,6 +42,10 @@ public function validate($expression, Constraint $constraint): void
             throw new UnexpectedTypeException($expression, 'string');
         }
 
+        if (null === $this->expressionLanguage) {
+            $this->expressionLanguage = new ExpressionLanguage();
+        }
+
         try {
             $this->expressionLanguage->lint($expression, ($constraint->validateNames ? ($constraint->names ?? []) : null));
         } catch (SyntaxError $exception) {
Original file line number	Diff line number	Diff line change
`@@ -37,6 +37,6 @@ class ExpressionLanguageSyntax extends Constraint`
`37`	`37`	`*/`
`38`	`38`	`public function validatedBy()`
`39`	`39`	`{`
`40`		`- return $this->service;`
	`40`	`+ return $this->service ?? static::class.'Validator';`
`41`	`41`	`}`
`42`	`42`	`}`
Original file line number	Diff line number	Diff line change
`@@ -24,7 +24,7 @@ class ExpressionLanguageSyntaxValidator extends ConstraintValidator`
`24`	`24`	`{`
`25`	`25`	`private $expressionLanguage;`
`26`	`26`
`27`		`- public function __construct(ExpressionLanguage $expressionLanguage)`
	`27`	`+ public function __construct(ExpressionLanguage $expressionLanguage = null)`
`28`	`28`	`{`
`29`	`29`	`$this->expressionLanguage = $expressionLanguage;`
`30`	`30`	`}`
`@@ -42,6 +42,10 @@ public function validate($expression, Constraint $constraint): void`
`42`	`42`	`throw new UnexpectedTypeException($expression, 'string');`
`43`	`43`	`}`
`44`	`44`
	`45`	`+ if (null === $this->expressionLanguage) {`
	`46`	`+ $this->expressionLanguage = new ExpressionLanguage();`
	`47`	`+ }`
	`48`	`+`
`45`	`49`	`try {`
`46`	`50`	`$this->expressionLanguage->lint($expression, ($constraint->validateNames ? ($constraint->names ?? []) : null));`
`47`	`51`	`} catch (SyntaxError $exception) {`