fix: warning when call the instance method (#735)

resources/views/helper.php

@@ -36,7 +36,10 @@ namespace <?= $namespace == '__root' ? '' : trim($namespace, '\\') ?> {
             //Method inherited from <?= $method->getDeclaringClass() ?>
             <?php endif; ?>
 
-            <?= $method->shouldReturn() ? 'return ': '' ?><?= $method->getRoot() ?>::<?= $method->getRealName() ?>(<?= $method->getParams() ?>);
+            <?php if($method->isInstanceCall()):?>
+            /** @var <?=$method->getRoot()?> $instance */
+            <?php endif?>
+            <?= $method->shouldReturn() ? 'return ': '' ?><?= $method->getRootMethodCall() ?>;
         }
         <?php endforeach; ?> 
     }
@@ -58,7 +61,10 @@ namespace <?= $namespace == '__root' ? '' : trim($namespace, '\\') ?> {
                 //Method inherited from <?= $method->getDeclaringClass() ?>
                 <?php endif; ?>
 
-                <?= $method->shouldReturn() ? 'return ': '' ?><?= $method->getRoot() ?>::<?= $method->getRealName() ?>(<?= $method->getParams() ?>);
+                <?php if($method->isInstanceCall()):?>
+                /** @var <?=$method->getRoot()?> $instance */
+                <?php endif?>
+                <?= $method->shouldReturn() ? 'return ': '' ?><?= $method->getRootMethodCall() ?>;
             }
         <?php endforeach; ?>
 <?php endif; ?>}

src/Method.php

@@ -34,6 +34,7 @@ class Method
     protected $interfaces = array();
     protected $real_name;
     protected $return = null;
+    protected $root;
 
     /**
      * @param \ReflectionMethod|\ReflectionFunctionAbstract $method
@@ -50,6 +51,9 @@ class Method
         $this->real_name = $method->isClosure() ? $this->name : $method->name;
         $this->initClassDefinedProperties($method, $class);
 
+        //Reference the 'real' function in the declaring class
+        $this->root = '\\' . ltrim($class->getName(), '\\');
+
         //Create a DocBlock and serializer instance
         $this->initPhpDoc($method);
 
@@ -66,9 +70,6 @@ class Method
 
         //Make the method static
         $this->phpdoc->appendTag(Tag::createInstance('@static', $this->phpdoc));
-
-        //Reference the 'real' function in the declaring class
-        $this->root = '\\' . ltrim($class->getName(), '\\');
     }
 
     /**
@@ -110,6 +111,26 @@ class Method
         return $this->root;
     }
 
+    /**
+     * @return bool
+     */
+    public function isInstanceCall()
+    {
+        return ! ($this->method->isClosure() || $this->method->isStatic());
+    }
+
+    /**
+     * @return string
+     */
+    public function getRootMethodCall()
+    {
+        if ($this->isInstanceCall()) {
+            return "\$instance->{$this->getRealName()}({$this->getParams()})";
+        } else {
+            return "{$this->getRoot()}::{$this->getRealName()}({$this->getParams()})";
+        }
+    }
+
     /**
      * Get the docblock for this method
      *
@@ -243,6 +264,10 @@ class Method
             // Set the changed content
             $tag->setContent($returnValue . ' ' . $tag->getDescription());
             $this->return = $returnValue;
+
+            if ($tag->getType() === '$this') {
+                $tag->setType($this->root);
+            }
         } else {
             $this->return = null;
         }