Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 347 insertions, 0 deletions

diff --git a/third_party/rust/unreachable/.cargo-checksum.json b/third_party/rust/unreachable/.cargo-checksum.json
new file mode 100644
index 0000000000..797c7dcbac
--- /dev/null
+++ b/third_party/rust/unreachable/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.toml":"9347536f7400ac984522823ce009af0c6c8daca66a51715b653b6ec98436967d","LICENSE-APACHE":"c6596eb7be8581c18be736c846fb9173b69eccf6ef94c5135893ec56bd92ba08","LICENSE-MIT":"9a5633009ff51b0a74dd81f7576fce531fea6097cd377867f6ce445617b6fa78","README.md":"bd81710532521de9e3eaf29c1b4a6e17ef0c169c6fe5e43f03dd463babae3f50","src/lib.rs":"2cb4bbb6a0c7058e49f5bbc0c1e2f208b5374cf70c495813401a357f9dfad188"},"package":"382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"}
\ No newline at end of file
diff --git a/third_party/rust/unreachable/Cargo.toml b/third_party/rust/unreachable/Cargo.toml
new file mode 100644
index 0000000000..87d5e4743a
--- /dev/null
+++ b/third_party/rust/unreachable/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+
+name = "unreachable"
+version = "1.0.0"
+authors = ["Jonathan Reem <jonathan.reem@gmail.com>"]
+repository = "https://github.com/reem/rust-unreachable.git"
+description = "An unreachable code optimization hint in stable rust."
+readme = "README.md"
+license = "MIT / Apache-2.0"
+
+[dependencies.void]
+version = "1"
+default-features = false
diff --git a/third_party/rust/unreachable/LICENSE-APACHE b/third_party/rust/unreachable/LICENSE-APACHE
new file mode 100644
index 0000000000..8f71f43fee
--- /dev/null
+++ b/third_party/rust/unreachable/LICENSE-APACHE
@@ -0,0 +1,202 @@
+                                 Apache License
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diff --git a/third_party/rust/unreachable/LICENSE-MIT b/third_party/rust/unreachable/LICENSE-MIT
new file mode 100644
index 0000000000..cd5c70e104
--- /dev/null
+++ b/third_party/rust/unreachable/LICENSE-MIT
@@ -0,0 +1,19 @@
+Copyright (c) 2015 The rust-unreachable Developers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/third_party/rust/unreachable/README.md b/third_party/rust/unreachable/README.md
new file mode 100644
index 0000000000..8a21c49e82
--- /dev/null
+++ b/third_party/rust/unreachable/README.md
@@ -0,0 +1,35 @@
+# unreachable
+
+> An unreachable code optimization hint in stable rust.
+
+## [Documentation](https://crates.fyi/crates/unreachable/0.1.1)
+
+## Usage
+
+Use the crates.io repository; add this to your `Cargo.toml` along
+with the rest of your dependencies:
+
+```toml
+[dependencies]
+unreachable = "0.1"
+```
+
+## Author
+
+[Jonathan Reem](https://medium.com/@jreem) is the primary author and maintainer of unreachable.
+
+## License
+
+Licensed under either of
+
+ * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+ * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in the work by you, as defined in the Apache-2.0
+license, shall be dual licensed as above, without any additional terms or
+conditions.
diff --git a/third_party/rust/unreachable/src/lib.rs b/third_party/rust/unreachable/src/lib.rs
new file mode 100644
index 0000000000..bb9b334312
--- /dev/null
+++ b/third_party/rust/unreachable/src/lib.rs
@@ -0,0 +1,77 @@
+#![cfg_attr(test, deny(warnings))]
+#![deny(missing_docs)]
+
+//! # unreachable
+//!
+//! An unreachable code optimization hint in stable rust, and some useful
+//! extension traits for `Option` and `Result`.
+//!
+
+#![no_std]
+
+extern crate void;
+
+use core::mem;
+
+/// Hint to the optimizer that any code path which calls this function is
+/// statically unreachable and can be removed.
+///
+/// Calling this function in reachable code invokes undefined behavior. Be
+/// very, very sure this is what you want; often, a simple `panic!` is more
+/// suitable.
+#[inline]
+pub unsafe fn unreachable() -> ! {
+    let x: &void::Void = mem::transmute(1usize);
+    void::unreachable(*x)
+}
+
+/// An extension trait for `Option<T>` providing unchecked unwrapping methods.
+pub trait UncheckedOptionExt<T> {
+    /// Get the value out of this Option without checking for None.
+    unsafe fn unchecked_unwrap(self) -> T;
+
+    /// Assert that this Option is a None to the optimizer.
+    unsafe fn unchecked_unwrap_none(self);
+}
+
+/// An extension trait for `Result<T, E>` providing unchecked unwrapping methods.
+pub trait UncheckedResultExt<T, E> {
+    /// Get the value out of this Result without checking for Err.
+    unsafe fn unchecked_unwrap_ok(self) -> T;
+
+    /// Get the error out of this Result without checking for Ok.
+    unsafe fn unchecked_unwrap_err(self) -> E;
+}
+
+impl<T> UncheckedOptionExt<T> for Option<T> {
+    unsafe fn unchecked_unwrap(self) -> T {
+        match self {
+            Some(x) => x,
+            None => unreachable()
+        }
+    }
+
+    unsafe fn unchecked_unwrap_none(self) {
+        match self {
+            Some(_) => unreachable(),
+            None => ()
+        }
+    }
+}
+
+impl<T, E> UncheckedResultExt<T, E> for Result<T, E> {
+    unsafe fn unchecked_unwrap_ok(self) -> T {
+        match self {
+            Ok(x) => x,
+            Err(_) => unreachable()
+        }
+    }
+
+    unsafe fn unchecked_unwrap_err(self) -> E {
+        match self {
+            Ok(_) => unreachable(),
+            Err(e) => e
+        }
+    }
+}
+