From 5270c43e412cc636cd9923182169d166d181f78a Mon Sep 17 00:00:00 2001
From: David Sherret <dsherret@users.noreply.github.com>
Date: Thu, 4 May 2023 14:28:42 -0400
Subject: refactor(ext/fs): boxed deno_fs::FileSystem (#18945)

1. Boxed `File` and `FileSystem` to allow more easily passing this
through the CLI code (as shown within this pr).
2. `StdFileResource` is now `FileResource`. `FileResource` now contains
an `Rc<dyn File>`.
---
 core/resources.rs | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'core')

diff --git a/core/resources.rs b/core/resources.rs
index 84e6847fc..94d2a2306 100644
--- a/core/resources.rs
+++ b/core/resources.rs
@@ -187,6 +187,13 @@ pub trait Resource: Any + 'static {
     None
   }
 
+  /// Resources backed by a file descriptor can let ops know to allow for
+  /// low-level optimizations.
+  #[cfg(windows)]
+  fn backing_fd(self: Rc<Self>) -> Option<std::os::windows::io::RawHandle> {
+    None
+  }
+
   fn size_hint(&self) -> (u64, Option<u64>) {
     (0, None)
   }
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