Add missing return types

Author: wouterj

Compiler.php

@@ -28,6 +28,9 @@ public function __construct(array $functions)
         $this->functions = $functions;
     }
 
+    /**
+     * @return array
+     */
     public function getFunction(string $name)
     {
         return $this->functions[$name];

Node/Node.php

@@ -80,6 +80,11 @@ public function evaluate(array $functions, array $values)
         return $results;
     }
 
+    /**
+     * @return array
+     *
+     * @throws \BadMethodCallException when this node cannot be transformed to an array
+     */
     public function toArray()
     {
         throw new \BadMethodCallException(sprintf('Dumping a "%s" instance is not supported yet.', static::class));

Parser.php

@@ -130,6 +130,9 @@ private function doParse(TokenStream $stream, ?array $names = []): Node\Node
         return $node;
     }
 
+    /**
+     * @return Node\Node
+     */
     public function parseExpression(int $precedence = 0)
     {
         $expr = $this->getPrimary();
@@ -151,6 +154,9 @@ public function parseExpression(int $precedence = 0)
         return $expr;
     }
 
+    /**
+     * @return Node\Node
+     */
     protected function getPrimary()
     {
         $token = $this->stream->current;

SerializedParsedExpression.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\ExpressionLanguage;
 
+use Symfony\Component\ExpressionLanguage\Node\Node;
+
 /**
  * Represents an already parsed expression.
  *
@@ -30,6 +32,9 @@ public function __construct(string $expression, string $nodes)
         $this->nodes = $nodes;
     }
 
+    /**
+     * @return Node
+     */
     public function getNodes()
     {
         return unserialize($this->nodes);