mirror of
https://gitee.com/openharmony/third_party_rust_proc-macro2
synced 2024-11-27 01:20:48 +00:00
22 lines
580 B
Rust
22 lines
580 B
Rust
// This code exercises the surface area that we expect of Span's unstable API.
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// If the current toolchain is able to compile it, then proc-macro2 is able to
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// offer these APIs too.
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#![feature(proc_macro_span)]
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extern crate proc_macro;
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use core::ops::RangeBounds;
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use proc_macro::{Literal, Span};
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pub fn join(this: &Span, other: Span) -> Option<Span> {
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this.join(other)
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}
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pub fn subspan<R: RangeBounds<usize>>(this: &Literal, range: R) -> Option<Span> {
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this.subspan(range)
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}
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// Include in sccache cache key.
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const _: Option<&str> = option_env!("RUSTC_BOOTSTRAP");
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