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Merge pull request #2395 from dtolnay/parsewhere

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Simplify parsing of where-predicates in bound attribute
This commit is contained in:
David Tolnay
2023-03-09 00:38:57 -08:00
committed by GitHub
parent b80e722f81 f301e09e02
commit 7e9b98401d
1 changed files with 3 additions and 5 deletions
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serde_derive/src/internals/attr.rs
+3 -5
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@@ -1627,11 +1627,9 @@ fn parse_lit_into_where(
) -> Result<Vec<syn::WherePredicate>, ()> { ) -> Result<Vec<syn::WherePredicate>, ()> {
let string = get_lit_str2(cx, attr_name, meta_item_name, lit)?; let string = get_lit_str2(cx, attr_name, meta_item_name, lit)?;
let where_string = syn::LitStr::new(&format!("where {}", string.value()), string.span()); string
.parse_with(Punctuated::<syn::WherePredicate, Token![,]>::parse_terminated)
where_string .map(|predicates| predicates.into_iter().collect())
.parse::<syn::WhereClause>()
.map(|wh| wh.predicates.into_iter().collect())
.map_err(|err| cx.error_spanned_by(lit, err)) .map_err(|err| cx.error_spanned_by(lit, err))
} }