From cf94bdc0742c13e2a0cac864c478b8626b266e1b Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:11:38 +0200
Subject: Merging upstream version 1.66.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/tracing-subscriber/src/registry/stack.rs | 77 -------------------------
 1 file changed, 77 deletions(-)
 delete mode 100644 vendor/tracing-subscriber/src/registry/stack.rs

(limited to 'vendor/tracing-subscriber/src/registry/stack.rs')

diff --git a/vendor/tracing-subscriber/src/registry/stack.rs b/vendor/tracing-subscriber/src/registry/stack.rs
deleted file mode 100644
index 4a3f7e59d..000000000
--- a/vendor/tracing-subscriber/src/registry/stack.rs
+++ /dev/null
@@ -1,77 +0,0 @@
-pub(crate) use tracing_core::span::Id;
-
-#[derive(Debug)]
-struct ContextId {
-    id: Id,
-    duplicate: bool,
-}
-
-/// `SpanStack` tracks what spans are currently executing on a thread-local basis.
-///
-/// A "separate current span" for each thread is a semantic choice, as each span
-/// can be executing in a different thread.
-#[derive(Debug, Default)]
-pub(crate) struct SpanStack {
-    stack: Vec<ContextId>,
-}
-
-impl SpanStack {
-    #[inline]
-    pub(super) fn push(&mut self, id: Id) -> bool {
-        let duplicate = self.stack.iter().any(|i| i.id == id);
-        self.stack.push(ContextId { id, duplicate });
-        !duplicate
-    }
-
-    #[inline]
-    pub(super) fn pop(&mut self, expected_id: &Id) -> bool {
-        if let Some((idx, _)) = self
-            .stack
-            .iter()
-            .enumerate()
-            .rev()
-            .find(|(_, ctx_id)| ctx_id.id == *expected_id)
-        {
-            let ContextId { id: _, duplicate } = self.stack.remove(idx);
-            return !duplicate;
-        }
-        false
-    }
-
-    #[inline]
-    pub(crate) fn iter(&self) -> impl Iterator<Item = &Id> {
-        self.stack
-            .iter()
-            .rev()
-            .filter_map(|ContextId { id, duplicate }| if !*duplicate { Some(id) } else { None })
-    }
-
-    #[inline]
-    pub(crate) fn current(&self) -> Option<&Id> {
-        self.iter().next()
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::{Id, SpanStack};
-
-    #[test]
-    fn pop_last_span() {
-        let mut stack = SpanStack::default();
-        let id = Id::from_u64(1);
-        stack.push(id.clone());
-
-        assert!(stack.pop(&id));
-    }
-
-    #[test]
-    fn pop_first_span() {
-        let mut stack = SpanStack::default();
-        stack.push(Id::from_u64(1));
-        stack.push(Id::from_u64(2));
-
-        let id = Id::from_u64(1);
-        assert!(stack.pop(&id));
-    }
-}
-- 
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