From 66f6d4b1ea44763ba482af23e874d9ce39461383 Mon Sep 17 00:00:00 2001
From: Tyson Andre <tyson.andre@uwaterloo.ca>
Date: Tue, 10 Jul 2018 13:01:44 -0700
Subject: [PATCH] Allow empty default of `0` for optional parameter in magic
 method (#880)

Fixes #879

`!= ''` will reject both null and '', but not `0`
---
 src/Psalm/Checker/CommentChecker.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Psalm/Checker/CommentChecker.php b/src/Psalm/Checker/CommentChecker.php
index 9eccddd0e..1b1e39b90 100644
--- a/src/Psalm/Checker/CommentChecker.php
+++ b/src/Psalm/Checker/CommentChecker.php
@@ -467,7 +467,7 @@ class CommentChecker
                     $args[] = ($method_tree_child->byref ? '&' : '')
                         . ($method_tree_child->variadic ? '...' : '')
                         . $method_tree_child->name
-                        . ($method_tree_child->default ? ' = ' . $method_tree_child->default : '');
+                        . ($method_tree_child->default != '' ? ' = ' . $method_tree_child->default : '');
 
 
                     if ($method_tree_child->children) {