rustc_attr_parsing/attributes/
non_exhaustive.rs

1use rustc_attr_data_structures::AttributeKind;
2use rustc_span::{Span, Symbol, sym};
3
4use crate::attributes::{NoArgsAttributeParser, OnDuplicate};
5use crate::context::Stage;
6
7pub(crate) struct NonExhaustiveParser;
8
9impl<S: Stage> NoArgsAttributeParser<S> for NonExhaustiveParser {
10    const PATH: &[Symbol] = &[sym::non_exhaustive];
11    const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn;
12    const CREATE: fn(Span) -> AttributeKind = AttributeKind::NonExhaustive;
13}