From 9eba818de944d66f3923f40bd7f5a6eb19bd05d5 Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sun, 3 Aug 2025 16:43:05 +0800
Subject: [PATCH] feat: update serde json

---
 __serialization/serde_json/Cargo.lock  | 334 +++++++++++++++++++------
 __serialization/serde_json/src/main.rs |   4 +
 2 files changed, 260 insertions(+), 78 deletions(-)

diff --git a/__serialization/serde_json/Cargo.lock b/__serialization/serde_json/Cargo.lock
index 57c9a7c..e34ddf6 100644
--- a/__serialization/serde_json/Cargo.lock
+++ b/__serialization/serde_json/Cargo.lock
@@ -1,171 +1,349 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 4
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+checksum = "56e6c93f3a0c3b36176cb1327a4958a0353d5d166c2a35cb268ace15e91d3b57"
+dependencies = [
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diff --git a/__serialization/serde_json/src/main.rs b/__serialization/serde_json/src/main.rs
index 057a3c1..2e04afd 100644
--- a/__serialization/serde_json/src/main.rs
+++ b/__serialization/serde_json/src/main.rs
@@ -5,6 +5,7 @@ use serde::{Deserialize, Serialize};
 use serde_json::{Result, Value};
 use chrono::{DateTime, Utc, TimeZone};
 
+// alternative JSON for human: https://crates.io/crates/json5
 mod my_date_format {
     use chrono::{DateTime, Utc, TimeZone};
     use serde::{self, Deserialize, Serializer, Deserializer};
@@ -50,6 +51,8 @@ struct TestStruct {
 struct TestStruct2 {
     test_id: i32,
     test_name: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    test_description: Option<String>,
 }
 
 fn main() -> Result<()> {
@@ -91,6 +94,7 @@ fn main() -> Result<()> {
     let test_struct2 = TestStruct2 {
         test_id: 1,
         test_name: "Hatter".into(),
+        test_description: None,
     };
     println!("{}", serde_json::to_string(&test_struct2)?);