bjoernager/rust
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Use ThinVec in ast::ExprKind::Match.

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This commit is contained in:
Nicholas Nethercote 2023-01-30 15:10:59 +11:00
parent 912b825002
commit 549f1c60af
8 changed files with 9 additions and 9 deletions
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2
compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs
View file

@ -71,7 +71,7 @@ pub fn cs_cmp(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_>) -> Bl
let eq_arm = cx.arm(span, cx.pat_path(span, equal_path.clone()), expr1);
let neq_arm =
cx.arm(span, cx.pat_ident(span, test_id), cx.expr_ident(span, test_id));
cx.expr_match(span, expr2, vec![eq_arm, neq_arm])
cx.expr_match(span, expr2, thin_vec![eq_arm, neq_arm])
}
CsFold::Fieldless => cx.expr_path(equal_path.clone()),
},

2
compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs
View file

@ -143,7 +143,7 @@ fn cs_partial_cmp(
cx.arm(span, cx.pat_some(span, cx.pat_path(span, equal_path.clone())), expr1);
let neq_arm =
cx.arm(span, cx.pat_ident(span, test_id), cx.expr_ident(span, test_id));
cx.expr_match(span, expr2, vec![eq_arm, neq_arm])
cx.expr_match(span, expr2, thin_vec![eq_arm, neq_arm])
}
}
CsFold::Fieldless => cx.expr_some(span, cx.expr_path(equal_path.clone())),

2
compiler/rustc_builtin_macros/src/deriving/debug.rs
View file

@ -234,7 +234,7 @@ fn show_fieldless_enum(
};
cx.arm(span, pat, cx.expr_str(span, v.ident.name))
})
.collect::<Vec<_>>();
.collect::<ThinVec<_>>();
let name = cx.expr_match(span, cx.expr_self(span), arms);
let fn_path_write_str = cx.std_path(&[sym::fmt, sym::Formatter, sym::write_str]);
BlockOrExpr::new_expr(cx.expr_call_global(span, fn_path_write_str, thin_vec![fmt, name]))

2
compiler/rustc_builtin_macros/src/deriving/decodable.rs
View file

@ -123,7 +123,7 @@ fn decodable_substructure(
StaticEnum(_, fields) => {
let variant = Ident::new(sym::i, trait_span);
let mut arms = Vec::with_capacity(fields.len() + 1);
let mut arms = ThinVec::with_capacity(fields.len() + 1);
let mut variants = ThinVec::with_capacity(fields.len());
let fn_read_enum_variant_arg_path: Vec<_> =

2
compiler/rustc_builtin_macros/src/deriving/generic/mod.rs
View file

@ -1247,7 +1247,7 @@ impl<'a> MethodDef<'a> {
// (Variant2, Variant2, ...) => Body2
// ...
// where each tuple has length = selflike_args.len()
let mut match_arms: Vec<ast::Arm> = variants
let mut match_arms: ThinVec<ast::Arm> = variants
.iter()
.enumerate()
.filter(|&(_, v)| !(unify_fieldless_variants && v.data.fields().is_empty()))