From a990de90fe41456a23e58bd087d2f107d321f3a1 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Fri, 19 Jul 2024 16:37:58 +0400
Subject: Deleted vendor folder

---
 vendor/spin/src/lazy.rs | 118 ------------------------------------------------
 1 file changed, 118 deletions(-)
 delete mode 100644 vendor/spin/src/lazy.rs

(limited to 'vendor/spin/src/lazy.rs')

diff --git a/vendor/spin/src/lazy.rs b/vendor/spin/src/lazy.rs
deleted file mode 100644
index 6e5efe4..0000000
--- a/vendor/spin/src/lazy.rs
+++ /dev/null
@@ -1,118 +0,0 @@
-//! Synchronization primitives for lazy evaluation.
-//!
-//! Implementation adapted from the `SyncLazy` type of the standard library. See:
-//! <https://doc.rust-lang.org/std/lazy/struct.SyncLazy.html>
-
-use crate::{once::Once, RelaxStrategy, Spin};
-use core::{cell::Cell, fmt, ops::Deref};
-
-/// A value which is initialized on the first access.
-///
-/// This type is a thread-safe `Lazy`, and can be used in statics.
-///
-/// # Examples
-///
-/// ```
-/// use std::collections::HashMap;
-/// use spin::Lazy;
-///
-/// static HASHMAP: Lazy<HashMap<i32, String>> = Lazy::new(|| {
-///     println!("initializing");
-///     let mut m = HashMap::new();
-///     m.insert(13, "Spica".to_string());
-///     m.insert(74, "Hoyten".to_string());
-///     m
-/// });
-///
-/// fn main() {
-///     println!("ready");
-///     std::thread::spawn(|| {
-///         println!("{:?}", HASHMAP.get(&13));
-///     }).join().unwrap();
-///     println!("{:?}", HASHMAP.get(&74));
-///
-///     // Prints:
-///     //   ready
-///     //   initializing
-///     //   Some("Spica")
-///     //   Some("Hoyten")
-/// }
-/// ```
-pub struct Lazy<T, F = fn() -> T, R = Spin> {
-    cell: Once<T, R>,
-    init: Cell<Option<F>>,
-}
-
-impl<T: fmt::Debug, F, R> fmt::Debug for Lazy<T, F, R> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_struct("Lazy")
-            .field("cell", &self.cell)
-            .field("init", &"..")
-            .finish()
-    }
-}
-
-// We never create a `&F` from a `&Lazy<T, F>` so it is fine
-// to not impl `Sync` for `F`
-// we do create a `&mut Option<F>` in `force`, but this is
-// properly synchronized, so it only happens once
-// so it also does not contribute to this impl.
-unsafe impl<T, F: Send> Sync for Lazy<T, F> where Once<T>: Sync {}
-// auto-derived `Send` impl is OK.
-
-impl<T, F, R> Lazy<T, F, R> {
-    /// Creates a new lazy value with the given initializing
-    /// function.
-    pub const fn new(f: F) -> Self {
-        Self {
-            cell: Once::new(),
-            init: Cell::new(Some(f)),
-        }
-    }
-    /// Retrieves a mutable pointer to the inner data.
-    ///
-    /// This is especially useful when interfacing with low level code or FFI where the caller
-    /// explicitly knows that it has exclusive access to the inner data. Note that reading from
-    /// this pointer is UB until initialized or directly written to.
-    pub fn as_mut_ptr(&self) -> *mut T {
-        self.cell.as_mut_ptr()
-    }
-}
-
-impl<T, F: FnOnce() -> T, R: RelaxStrategy> Lazy<T, F, R> {
-    /// Forces the evaluation of this lazy value and
-    /// returns a reference to result. This is equivalent
-    /// to the `Deref` impl, but is explicit.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use spin::Lazy;
-    ///
-    /// let lazy = Lazy::new(|| 92);
-    ///
-    /// assert_eq!(Lazy::force(&lazy), &92);
-    /// assert_eq!(&*lazy, &92);
-    /// ```
-    pub fn force(this: &Self) -> &T {
-        this.cell.call_once(|| match this.init.take() {
-            Some(f) => f(),
-            None => panic!("Lazy instance has previously been poisoned"),
-        })
-    }
-}
-
-impl<T, F: FnOnce() -> T, R: RelaxStrategy> Deref for Lazy<T, F, R> {
-    type Target = T;
-
-    fn deref(&self) -> &T {
-        Self::force(self)
-    }
-}
-
-impl<T: Default, R> Default for Lazy<T, fn() -> T, R> {
-    /// Creates a new lazy value using `Default` as the initializing function.
-    fn default() -> Self {
-        Self::new(T::default)
-    }
-}
-- 
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