diff options
Diffstat (limited to 'compiler/rustc_builtin_macros/src/deriving/generic/ty.rs')
| -rw-r--r-- | compiler/rustc_builtin_macros/src/deriving/generic/ty.rs | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/compiler/rustc_builtin_macros/src/deriving/generic/ty.rs b/compiler/rustc_builtin_macros/src/deriving/generic/ty.rs index c6f5f5d08..26f91b714 100644 --- a/compiler/rustc_builtin_macros/src/deriving/generic/ty.rs +++ b/compiler/rustc_builtin_macros/src/deriving/generic/ty.rs @@ -9,6 +9,7 @@ use rustc_expand::base::ExtCtxt; use rustc_span::source_map::{respan, DUMMY_SP}; use rustc_span::symbol::{kw, Ident, Symbol}; use rustc_span::Span; +use thin_vec::ThinVec; /// A path, e.g., `::std::option::Option::<i32>` (global). Has support /// for type parameters. @@ -102,7 +103,7 @@ impl Ty { Path(p) => p.to_ty(cx, span, self_ty, self_generics), Self_ => cx.ty_path(self.to_path(cx, span, self_ty, self_generics)), Unit => { - let ty = ast::TyKind::Tup(vec![]); + let ty = ast::TyKind::Tup(ThinVec::new()); cx.ty(span, ty) } } @@ -154,7 +155,7 @@ fn mk_ty_param( .iter() .map(|b| { let path = b.to_path(cx, span, self_ident, self_generics); - cx.trait_bound(path) + cx.trait_bound(path, false) }) .collect(); cx.typaram(span, Ident::new(name, span), bounds, None) @@ -185,7 +186,11 @@ impl Bounds { Generics { params, - where_clause: ast::WhereClause { has_where_token: false, predicates: Vec::new(), span }, + where_clause: ast::WhereClause { + has_where_token: false, + predicates: ThinVec::new(), + span, + }, span, } } |