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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/rust/hyper/src/common/never.rs
parentInitial commit. (diff)
downloadfirefox-esr-upstream.tar.xz
firefox-esr-upstream.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/hyper/src/common/never.rs')
-rw-r--r--third_party/rust/hyper/src/common/never.rs21
1 files changed, 21 insertions, 0 deletions
diff --git a/third_party/rust/hyper/src/common/never.rs b/third_party/rust/hyper/src/common/never.rs
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index 0000000000..f143caf60f
--- /dev/null
+++ b/third_party/rust/hyper/src/common/never.rs
@@ -0,0 +1,21 @@
+//! An uninhabitable type meaning it can never happen.
+//!
+//! To be replaced with `!` once it is stable.
+
+use std::error::Error;
+use std::fmt;
+
+#[derive(Debug)]
+pub(crate) enum Never {}
+
+impl fmt::Display for Never {
+ fn fmt(&self, _: &mut fmt::Formatter<'_>) -> fmt::Result {
+ match *self {}
+ }
+}
+
+impl Error for Never {
+ fn description(&self) -> &str {
+ match *self {}
+ }
+}