vendor/thiserror-impl/src/span.rs


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use proc_macro2::Span;
use syn::Member;

pub trait MemberSpan {
    fn member_span(&self) -> Span;
}

impl MemberSpan for Member {
    fn member_span(&self) -> Span {
        match self {
            Member::Named(ident) => ident.span(),
            Member::Unnamed(index) => index.span,
        }
    }
}