From c21e9917fa05ba4d97da464725471f53ab4fe0d8 Mon Sep 17 00:00:00 2001
From: Brown <github@muglug.com>
Date: Mon, 10 Jun 2019 14:41:21 -0400
Subject: [PATCH] Add config flag to prevent inferring property types from
 constructor

---
 src/Psalm/Config.php                            | 10 ++++++++++
 src/Psalm/Internal/Visitor/ReflectorVisitor.php |  1 +
 2 files changed, 11 insertions(+)

diff --git a/src/Psalm/Config.php b/src/Psalm/Config.php
index add21f4fe..367084658 100644
--- a/src/Psalm/Config.php
+++ b/src/Psalm/Config.php
@@ -264,6 +264,11 @@ class Config
      */
     public $ignored_exceptions_and_descendants_in_global_scope = [];
 
+    /**
+     * @var bool
+     */
+    public $infer_property_types_from_constructor = true;
+
     /**
      * @var array<string, bool>
      */
@@ -725,6 +730,11 @@ class Config
             $config->parse_sql = $attribute_text === 'true' || $attribute_text === '1';
         }
 
+        if (isset($config_xml['inferPropertyTypesFromConstructor'])) {
+            $attribute_text = (string) $config_xml['inferPropertyTypesFromConstructor'];
+            $config->infer_property_types_from_constructor = $attribute_text === 'true' || $attribute_text === '1';
+        }
+
         if (isset($config_xml->projectFiles)) {
             $config->project_files = ProjectFileFilter::loadFromXMLElement($config_xml->projectFiles, $base_dir, true);
         }
diff --git a/src/Psalm/Internal/Visitor/ReflectorVisitor.php b/src/Psalm/Internal/Visitor/ReflectorVisitor.php
index 8c6dd7a6a..65c77f5b6 100644
--- a/src/Psalm/Internal/Visitor/ReflectorVisitor.php
+++ b/src/Psalm/Internal/Visitor/ReflectorVisitor.php
@@ -1818,6 +1818,7 @@ class ReflectorVisitor extends PhpParser\NodeVisitorAbstract implements PhpParse
             && $stmt->stmts
             && $storage->params
             && $class_storage
+            && $this->config->infer_property_types_from_constructor
         ) {
             $assigned_properties = [];