bjoernager/rust
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rustc: Remove #[rustc_synthetic]

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This function parameter attribute was introduced in https://github.com/rust-lang/rust/pull/44866 as an intermediate step in implementing `impl Trait`, it's not necessary or used anywhere by itself.
This commit is contained in:
Vadim Petrochenkov 2021-11-18 13:25:27 +08:00
parent 6414e0b5b3
commit 91e02177a1
17 changed files with 37 additions and 163 deletions
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21
compiler/rustc_middle/src/ty/generics.rs
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@ -3,7 +3,6 @@ use crate::ty;
use crate::ty::subst::{Subst, SubstsRef};
use rustc_ast as ast;
use rustc_data_structures::fx::FxHashMap;
use rustc_hir as hir;
use rustc_hir::def_id::DefId;
use rustc_span::symbol::Symbol;
use rustc_span::Span;
@ -13,14 +12,8 @@ use super::{EarlyBoundRegion, InstantiatedPredicates, ParamConst, ParamTy, Predi
#[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable)]
pub enum GenericParamDefKind {
Lifetime,
Type {
has_default: bool,
object_lifetime_default: ObjectLifetimeDefault,
synthetic: Option<hir::SyntheticTyParamKind>,
},
Const {
has_default: bool,
},
Type { has_default: bool, object_lifetime_default: ObjectLifetimeDefault, synthetic: bool },
Const { has_default: bool },
}
impl GenericParamDefKind {
@ -202,15 +195,7 @@ impl<'tcx> Generics {
/// Returns `true` if `params` has `impl Trait`.
pub fn has_impl_trait(&'tcx self) -> bool {
self.params.iter().any(|param| {
matches!(
param.kind,
ty::GenericParamDefKind::Type {
synthetic: Some(
hir::SyntheticTyParamKind::ImplTrait | hir::SyntheticTyParamKind::FromAttr,
),
..
}
)
matches!(param.kind, ty::GenericParamDefKind::Type { synthetic: true, .. })
})
}
}