From 64bb6c52db1990f38f8e8df5df884578811ae017 Mon Sep 17 00:00:00 2001
From: Ashley Mannix <ashleymannix@live.com.au>
Date: Wed, 16 Oct 2024 00:55:22 +1000
Subject: [PATCH] fix support for 128bit numbers streamed via serde

---
 nested/Cargo.toml     |  3 +++
 serde/src/to_value.rs |  8 ++++++++
 serde/test/lib.rs     | 20 ++++++++++++++++++++
 3 files changed, 31 insertions(+)

diff --git a/nested/Cargo.toml b/nested/Cargo.toml
index 3ebce46e..5ef99111 100644
--- a/nested/Cargo.toml
+++ b/nested/Cargo.toml
@@ -14,6 +14,9 @@ categories = ["encoding", "no-std"]
 [package.metadata.docs.rs]
 features = ["std"]
 
+[lints.rust]
+unexpected_cfgs = { level = "allow", check-cfg = ['cfg(no_debug_assertions)'] }
+
 [features]
 default = ["alloc"]
 std = ["alloc", "sval/std", "sval_buffer/std"]
diff --git a/serde/src/to_value.rs b/serde/src/to_value.rs
index be259438..6415980b 100644
--- a/serde/src/to_value.rs
+++ b/serde/src/to_value.rs
@@ -147,6 +147,10 @@ impl<'sval, S: sval::Stream<'sval>> serde::Serializer for Stream<S> {
         self.stream_value(v)
     }
 
+    fn serialize_i128(mut self, v: i128) -> Result<Self::Ok, Self::Error> {
+        self.stream_value(v)
+    }
+
     fn serialize_u8(mut self, v: u8) -> Result<Self::Ok, Self::Error> {
         self.stream_value(v)
     }
@@ -163,6 +167,10 @@ impl<'sval, S: sval::Stream<'sval>> serde::Serializer for Stream<S> {
         self.stream_value(v)
     }
 
+    fn serialize_u128(mut self, v: u128) -> Result<Self::Ok, Self::Error> {
+        self.stream_value(v)
+    }
+
     fn serialize_f32(mut self, v: f32) -> Result<Self::Ok, Self::Error> {
         self.stream_value(v)
     }
diff --git a/serde/test/lib.rs b/serde/test/lib.rs
index 4ba9389d..3e771444 100644
--- a/serde/test/lib.rs
+++ b/serde/test/lib.rs
@@ -141,6 +141,26 @@ fn option_none_to_serialize() {
     )
 }
 
+#[test]
+fn u128_to_serialize() {
+    // NOTE: Can't check the `serde` end of this because `serde_test`
+    // lacks 128bit number support
+    let v = 42u128;
+
+    let sval = &{
+        use sval_test::Token::*;
+
+        [U128(42)]
+    };
+
+    assert_tokens(&sval_serde::ToValue::new(&v), sval);
+
+    assert_tokens(
+        &sval_serde::ToValue::new(sval_serde::ToSerialize::new(&v)),
+        sval,
+    );
+}
+
 #[test]
 fn map_to_serialize() {
     test_case(