From a8c916973d67e3ed013f5202dd4780bf40ca200c Mon Sep 17 00:00:00 2001
From: timofey <tim@ongoteam.yaconnect.com>
Date: Sat, 5 Aug 2023 17:47:45 +0000
Subject: [PATCH] `ConstSizeFactory` for pair

---
 src/rstd/collections/pair.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/rstd/collections/pair.rs b/src/rstd/collections/pair.rs
index bc996ba..17ea4fb 100644
--- a/src/rstd/collections/pair.rs
+++ b/src/rstd/collections/pair.rs
@@ -184,6 +184,14 @@ where
     }
 }
 
+impl<'a, Ctx: Context<'a>, FA, FB> ConstSizeFactory<'a, Ctx> for (FA, FB)
+where
+    FA: ConstSizeFactory<'a, Ctx>,
+    FB: ConstSizeFactory<'a, Ctx> + FactoryModeParse<'a, Ctx>,
+{
+    const SIZE: usize = FA::SIZE + FB::SIZE;
+}
+
 impl<A: InliningAtomic, B: AtomicModeParse> AtomicModeParse for (A, B) {
     fn ma_deserialize<I: Stream>(stream: I) -> AModeResultM<Self, I> {
         StaticPairObject::<Self>::ma_deserialize_sp(stream)