diff options
Diffstat (limited to 'compiler/rustc_parse/src/parser/generics.rs')
| -rw-r--r-- | compiler/rustc_parse/src/parser/generics.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/compiler/rustc_parse/src/parser/generics.rs b/compiler/rustc_parse/src/parser/generics.rs index 23f49ec55a1..0eaa029a20d 100644 --- a/compiler/rustc_parse/src/parser/generics.rs +++ b/compiler/rustc_parse/src/parser/generics.rs @@ -14,6 +14,7 @@ use rustc_ast::{ use rustc_errors::{Applicability, PResult}; use rustc_span::symbol::{kw, Ident}; use rustc_span::Span; +use thin_vec::ThinVec; enum PredicateOrStructBody { Predicate(ast::WherePredicate), @@ -121,8 +122,8 @@ impl<'a> Parser<'a> { /// Parses a (possibly empty) list of lifetime and type parameters, possibly including /// a trailing comma and erroneous trailing attributes. - pub(super) fn parse_generic_params(&mut self) -> PResult<'a, Vec<ast::GenericParam>> { - let mut params = Vec::new(); + pub(super) fn parse_generic_params(&mut self) -> PResult<'a, ThinVec<ast::GenericParam>> { + let mut params = ThinVec::new(); let mut done = false; while !done { let attrs = self.parse_outer_attributes()?; @@ -251,7 +252,7 @@ impl<'a> Parser<'a> { self.expect_gt()?; (params, span_lo.to(self.prev_token.span)) } else { - (vec![], self.prev_token.span.shrink_to_hi()) + (ThinVec::new(), self.prev_token.span.shrink_to_hi()) }; Ok(ast::Generics { params, |