Remove further ??

vimeo · May 11, 2018 · 2844036 · 2844036
1 parent a01ecb6
commit 2844036
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Psalm/Type/Union.php b/src/Psalm/Type/Union.php
@@ -724,7 +724,7 @@ public function getSingleStringLiteral()
         if (count($this->types) !== 1) {
             throw new \InvalidArgumentException("Not a string literal");
         }
-        $string_type = $this->types['string'] ?? null;
+        $string_type = isset($this->types['string']) ? $this->types['string'] : null;
         if (!($string_type instanceof TLiteralString)) {
             throw new \InvalidArgumentException("Not a string literal");
         }