From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 11:22:09 +0200
Subject: Adding upstream version 110.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/rust/crossbeam-queue/src/err.rs | 46 +++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 third_party/rust/crossbeam-queue/src/err.rs

(limited to 'third_party/rust/crossbeam-queue/src/err.rs')

diff --git a/third_party/rust/crossbeam-queue/src/err.rs b/third_party/rust/crossbeam-queue/src/err.rs
new file mode 100644
index 0000000000..fcc84bb28b
--- /dev/null
+++ b/third_party/rust/crossbeam-queue/src/err.rs
@@ -0,0 +1,46 @@
+use std::error;
+use std::fmt;
+
+/// Error which occurs when popping from an empty queue.
+#[derive(Clone, Copy, Eq, PartialEq)]
+pub struct PopError;
+
+impl fmt::Debug for PopError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        "PopError".fmt(f)
+    }
+}
+
+impl fmt::Display for PopError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        "popping from an empty queue".fmt(f)
+    }
+}
+
+impl error::Error for PopError {
+    fn description(&self) -> &str {
+        "popping from an empty queue"
+    }
+}
+
+/// Error which occurs when pushing into a full queue.
+#[derive(Clone, Copy, Eq, PartialEq)]
+pub struct PushError<T>(pub T);
+
+impl<T> fmt::Debug for PushError<T> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        "PushError(..)".fmt(f)
+    }
+}
+
+impl<T> fmt::Display for PushError<T> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        "pushing into a full queue".fmt(f)
+    }
+}
+
+impl<T: Send> error::Error for PushError<T> {
+    fn description(&self) -> &str {
+        "pushing into a full queue"
+    }
+}
-- 
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