Assign discoverable names to properties (#184)

* allow properties in functionMap

* add comment on how to declare a property type

* fix typo

functionMap.php

@@ -21,6 +21,14 @@
  *
  * '<class_name>' => [null, '<arg_name>' => '<arg_type>']
  *
+ * For class methods:
+ *
+ * '<class_name::method_name>' => ['<return_type>', '<arg_name>' => '<arg_type>']
+ *
+ * For class properties:
+ *
+ * '<class_name::$property_name>' => [null, '@phpstan-var' => '<property_type>']
+ *
  * @link https://github.com/phpstan/phpstan-src/blob/1.10.x/resources/functionMap.php
  */
 return [

src/Visitor.php

@@ -76,15 +76,16 @@ public function enterNode(Node $node)
 
         $symbolName = self::getNodeName($node);
 
-        if ($node instanceof ClassMethod) {
+        if ($node instanceof ClassMethod || $node instanceof Property) {
             $parent = $this->stack[count($this->stack) - 2];
             \assert($parent instanceof \PhpParser\Node\Stmt\ClassLike);
 
             if ($parent->name !== null) {
                 $symbolName = sprintf(
-                    '%1$s::%2$s',
+                    '%1$s::%2$s%3$s',
                     $parent->name->name,
-                    $node->name->name
+                    $node instanceof Property ? '$' : '',
+                    $symbolName
                 );
             }
         }
@@ -125,10 +126,7 @@ private static function getNodeName(Node $node): string
         }
 
         if ($node instanceof Property) {
-            return sprintf(
-                'property_%s',
-                uniqid()
-            );
+            return $node->props[0]->name->name;
         }
 
         return '';