From 3cb22bea22875d059ccce89cf6379dc151a28860 Mon Sep 17 00:00:00 2001
From: Alexander Shkurko <coderimus@gmail.com>
Date: Sun, 14 Jan 2018 12:40:28 +0100
Subject: [PATCH] Optimization: magento/module-eav is_null change to strict
 comparison instead

---
 app/code/Magento/Eav/Model/Attribute.php                    | 4 ++--
 app/code/Magento/Eav/Model/Attribute/Data/AbstractData.php  | 6 +++---
 app/code/Magento/Eav/Model/Entity/AbstractEntity.php        | 2 +-
 .../Magento/Eav/Model/Entity/Attribute/Backend/Datetime.php | 2 +-
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/app/code/Magento/Eav/Model/Attribute.php b/app/code/Magento/Eav/Model/Attribute.php
index 64504b59fe9c9..e53f3ccc82a75 100644
--- a/app/code/Magento/Eav/Model/Attribute.php
+++ b/app/code/Magento/Eav/Model/Attribute.php
@@ -62,7 +62,7 @@ public function setWebsite($website)
      */
     public function getWebsite()
     {
-        if (is_null($this->_website)) {
+        if ($this->_website === null) {
             $this->_website = $this->_storeManager->getWebsite();
         }
 
@@ -88,7 +88,7 @@ public function afterSave()
     public function getUsedInForms()
     {
         $forms = $this->getData('used_in_forms');
-        if (is_null($forms)) {
+        if ($forms === null) {
             $forms = $this->_getResource()->getUsedInForms($this);
             $this->setData('used_in_forms', $forms);
         }
diff --git a/app/code/Magento/Eav/Model/Attribute/Data/AbstractData.php b/app/code/Magento/Eav/Model/Attribute/Data/AbstractData.php
index ed052cb71e2fa..12023acc3b33b 100644
--- a/app/code/Magento/Eav/Model/Attribute/Data/AbstractData.php
+++ b/app/code/Magento/Eav/Model/Attribute/Data/AbstractData.php
@@ -205,7 +205,7 @@ public function setExtractedData(array $data)
      */
     public function getExtractedData($index = null)
     {
-        if (!is_null($index)) {
+        if ($index !== null) {
             if (isset($this->_extractedData[$index])) {
                 return $this->_extractedData[$index];
             }
@@ -262,9 +262,9 @@ protected function _getFormFilter()
      */
     protected function _dateFilterFormat($format = null)
     {
-        if (is_null($format)) {
+        if ($format === null) {
             // get format
-            if (is_null($this->_dateFilterFormat)) {
+            if ($this->_dateFilterFormat === null) {
                 $this->_dateFilterFormat = \IntlDateFormatter::SHORT;
             }
             return $this->_localeDate->getDateFormat($this->_dateFilterFormat);
diff --git a/app/code/Magento/Eav/Model/Entity/AbstractEntity.php b/app/code/Magento/Eav/Model/Entity/AbstractEntity.php
index b0d186705026f..feb2c4d7d3f9f 100644
--- a/app/code/Magento/Eav/Model/Entity/AbstractEntity.php
+++ b/app/code/Magento/Eav/Model/Entity/AbstractEntity.php
@@ -1294,7 +1294,7 @@ protected function _collectSaveData($newObject)
                 $origData = $this->_getOrigObject($newObject)->getOrigData();
             }
 
-            if (is_null($origData)) {
+            if ($origData === null) {
                 $origData = [];
             }
 
diff --git a/app/code/Magento/Eav/Model/Entity/Attribute/Backend/Datetime.php b/app/code/Magento/Eav/Model/Entity/Attribute/Backend/Datetime.php
index 786060ea7b312..1a5f0a7811de3 100644
--- a/app/code/Magento/Eav/Model/Entity/Attribute/Backend/Datetime.php
+++ b/app/code/Magento/Eav/Model/Entity/Attribute/Backend/Datetime.php
@@ -49,7 +49,7 @@ public function beforeSave($object)
                 throw new \Magento\Framework\Exception\LocalizedException(__('Invalid date'));
             }
 
-            if (is_null($value)) {
+            if ($value === null) {
                 $value = $object->getData($attributeName);
             }