respan.rs - source

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tempfile

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triomphe

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ucd_trie

lib.rs owned.rs

unicode_linebreak

lib.rs shared.rs

unicode_segmentation

grapheme.rs lib.rs sentence.rs tables.rs word.rs

unicode_width

lib.rs tables.rs

unicode_xid

lib.rs tables.rs

untrusted

utf8_ranges

char_utf8.rs lib.rs

vec_map

use proc_macro2::{Group, Span, TokenStream, TokenTree};

pub(crate) fn respan(stream: TokenStream, span: Span) -> TokenStream {
    stream
        .into_iter()
        .map(|token| respan_token(token, span))
        .collect()
}

fn respan_token(mut token: TokenTree, span: Span) -> TokenTree {
    if let TokenTree::Group(g) = &mut token {
        *g = Group::new(g.delimiter(), respan(g.stream(), span));
    }
    token.set_span(span);
    token
}