From d47e1b4f7cb4089112673db57bd1ff8692623fe7 Mon Sep 17 00:00:00 2001
From: Matheus Castello <matheus@castello.eng.br>
Date: Wed, 15 Nov 2023 20:26:32 -0300
Subject: [PATCH] rnet: Maintain support for versions before 1.72

TypeIds are now 128 bits, so we need to use a different type for
`RawOpaqueHandle` depending on the rust version.

Signed-off-by: Matheus Castello <matheus@castello.eng.br>
---
 rnet/Cargo.toml       | 1 +
 rnet/src/std_impls.rs | 6 ++++++
 rnet/src/types.rs     | 8 ++++++++
 3 files changed, 15 insertions(+)

diff --git a/rnet/Cargo.toml b/rnet/Cargo.toml
index b4beda0..4582121 100644
--- a/rnet/Cargo.toml
+++ b/rnet/Cargo.toml
@@ -14,3 +14,4 @@ linkme = "0.2.7"
 rnet-macros = { version = "0.3.0", path = "../rnet-macros" }
 uuid = { version = "0.8.2", optional = true }
 chrono = { version = "0.4.19", optional = true }
+rustversion = "1.0.14"
diff --git a/rnet/src/std_impls.rs b/rnet/src/std_impls.rs
index b8890e2..a0a28c7 100644
--- a/rnet/src/std_impls.rs
+++ b/rnet/src/std_impls.rs
@@ -177,10 +177,16 @@ unsafe impl<T: ToNet> ToNet for Box<T> {
     }
 }
 
+#[rustversion::since(1.72)]
 fn int_type_id<T: 'static>() -> u128 {
     unsafe { std::mem::transmute(TypeId::of::<T>()) }
 }
 
+#[rustversion::before(1.72)]
+fn int_type_id<T: 'static>() -> u64 {
+    unsafe { std::mem::transmute(TypeId::of::<T>()) }
+}
+
 unsafe impl<T: Send + Sync + 'static> Net for Arc<T> {
     type Raw = RawOpaqueHandle;
 
diff --git a/rnet/src/types.rs b/rnet/src/types.rs
index 5910db7..888c7fc 100644
--- a/rnet/src/types.rs
+++ b/rnet/src/types.rs
@@ -28,12 +28,20 @@ impl Default for RawSlice {
 
 #[derive(Copy, Clone)]
 #[repr(C)]
+#[rustversion::since(1.72)]
 pub struct RawOpaqueHandle {
     pub ptr: *mut (),
     pub drop_fn: Option<unsafe extern "C" fn(ptr: *mut ())>,
     pub type_id: u128,
 }
 
+#[rustversion::before(1.72)]
+pub struct RawOpaqueHandle {
+    pub ptr: *mut (),
+    pub drop_fn: Option<unsafe extern "C" fn(ptr: *mut ())>,
+    pub type_id: u64,
+}
+
 impl Default for RawOpaqueHandle {
     fn default() -> Self {
         Self {