From 3fd17d375ab0f6586c0c80a15dc7ec0e9f925b07 Mon Sep 17 00:00:00 2001
From: Mat Sadler <mat@sourcetagsandcodes.com>
Date: Tue, 26 Dec 2023 20:56:19 +0000
Subject: [PATCH] use rb_io_descriptor for RFile::as_raw_fd on Ruby 3.3

---
 src/r_file.rs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/r_file.rs b/src/r_file.rs
index 95cfac15..7ce07857 100644
--- a/src/r_file.rs
+++ b/src/r_file.rs
@@ -1,5 +1,9 @@
-use std::{fmt, ptr::NonNull};
+use std::fmt;
+#[cfg(ruby_lt_3_3)]
+use std::ptr::NonNull;
 
+#[cfg(ruby_gte_3_3)]
+use rb_sys::rb_io_descriptor;
 use rb_sys::ruby_value_type;
 
 use crate::{
@@ -48,6 +52,7 @@ impl RFile {
         }
     }
 
+    #[cfg(ruby_lt_3_3)]
     fn as_internal(self) -> NonNull<rb_sys::RFile> {
         // safe as inner value is NonZero
         unsafe { NonNull::new_unchecked(self.0.get().as_rb_value() as *mut _) }
@@ -107,6 +112,11 @@ pub mod fd {
 pub use std::os::unix::io as fd;
 
 impl fd::AsRawFd for RFile {
+    #[cfg(ruby_gte_3_3)]
+    fn as_raw_fd(&self) -> fd::RawFd {
+        unsafe { rb_io_descriptor(self.as_rb_value()) }
+    }
+    #[cfg(ruby_lt_3_3)]
     fn as_raw_fd(&self) -> fd::RawFd {
         unsafe { (*self.as_internal().as_ref().fptr).fd }
     }