From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- third_party/rust/syn/src/reserved.rs | 42 ++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 third_party/rust/syn/src/reserved.rs (limited to 'third_party/rust/syn/src/reserved.rs') diff --git a/third_party/rust/syn/src/reserved.rs b/third_party/rust/syn/src/reserved.rs new file mode 100644 index 0000000000..ccfb8b5ad0 --- /dev/null +++ b/third_party/rust/syn/src/reserved.rs @@ -0,0 +1,42 @@ +// Type for a syntax tree node that is reserved for future use. +// +// For example ExprReference contains a field `raw` of type Reserved. If `&raw +// place` syntax becomes a thing as per https://github.com/rust-lang/rfcs/pull/2582, +// we can backward compatibly change `raw`'s type to Option without +// the possibility of breaking any code. + +use proc_macro2::Span; +use std::marker::PhantomData; + +#[cfg(feature = "extra-traits")] +use std::fmt::{self, Debug}; + +ast_struct! { + pub struct Reserved { + _private: PhantomData, + } +} + +impl Default for Reserved { + fn default() -> Self { + Reserved { + _private: PhantomData, + } + } +} + +#[cfg(feature = "clone-impls")] +impl Clone for Reserved { + fn clone(&self) -> Self { + Reserved { + _private: self._private, + } + } +} + +#[cfg(feature = "extra-traits")] +impl Debug for Reserved { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.debug_struct("Reserved").finish() + } +} -- cgit v1.2.3