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Deduplicate token stream respanner

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This commit is contained in:
David Tolnay
2021-01-24 23:01:50 -08:00
parent 033114a4ae
commit 1f423580a5
3 changed files with 20 additions and 37 deletions
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serde_derive/src/internals/receiver.rs
+5 -2
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@@ -1,5 +1,6 @@
use super::respan::respan;
use internals::respan::respan;
use proc_macro2::Span;
use quote::ToTokens;
use std::mem;
use syn::punctuated::Punctuated;
use syn::visit_mut::{self, VisitMut};
@@ -20,7 +21,9 @@ struct ReplaceReceiver<'a>(&'a TypePath);
impl ReplaceReceiver<'_> {
fn self_ty(&self, span: Span) -> TypePath {
respan(self.0, span)
let tokens = self.0.to_token_stream();
let respanned = respan(tokens, span);
syn::parse2(respanned).unwrap()
}
fn self_to_qself(&self, qself: &mut Option<QSelf>, path: &mut Path) {