mirror of https://github.com/torvalds/linux.git
20 lines
620 B
Rust
20 lines
620 B
Rust
// SPDX-License-Identifier: Apache-2.0 OR MIT
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use alloc::rc::Rc;
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use core::marker::PhantomData;
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use core::panic::{RefUnwindSafe, UnwindSafe};
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// Zero sized marker with the correct set of autotrait impls we want all proc
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// macro types to have.
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#[derive(Copy, Clone)]
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#[cfg_attr(
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all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)),
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derive(PartialEq, Eq)
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)]
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pub(crate) struct ProcMacroAutoTraits(PhantomData<Rc<()>>);
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pub(crate) const MARKER: ProcMacroAutoTraits = ProcMacroAutoTraits(PhantomData);
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impl UnwindSafe for ProcMacroAutoTraits {}
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impl RefUnwindSafe for ProcMacroAutoTraits {}
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