From fc30e51381d660a16f1948b74891a439ff0c6c8a Mon Sep 17 00:00:00 2001
From: Sunli <scott_s829@163.com>
Date: Wed, 13 Jul 2022 15:21:41 +0800
Subject: [PATCH] Implement `Default` for StringNumber #980

---
 src/types/string_number.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/types/string_number.rs b/src/types/string_number.rs
index b831a167..a92052db 100644
--- a/src/types/string_number.rs
+++ b/src/types/string_number.rs
@@ -11,6 +11,13 @@ use crate::{InputValueError, InputValueResult, Scalar, ScalarType, Value};
 #[cfg_attr(docsrs, doc(cfg(feature = "string_number")))]
 pub struct StringNumber<T: Num + Display>(pub T);
 
+impl<T: Num + Display + Default> Default for StringNumber<T> {
+    #[inline]
+    fn default() -> Self {
+        Self(Default::default())
+    }
+}
+
 #[Scalar(internal)]
 impl<T: Num + Display + Send + Sync> ScalarType for StringNumber<T>
 where