bjoernager/rust
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Clean dead codes

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r0cky 2023-11-25 18:18:55 +08:00
parent f5dc2653fd
commit 91aee2de15
10 changed files with 4 additions and 260 deletions
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152
compiler/rustc_mir_build/src/thir/pattern/mod.rs
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@ -18,17 +18,14 @@ use rustc_hir::pat_util::EnumerateAndAdjustIterator;
use rustc_hir::RangeEnd;
use rustc_index::Idx;
use rustc_middle::mir::interpret::{ErrorHandled, GlobalId, LitToConstError, LitToConstInput};
use rustc_middle::mir::{self, BorrowKind, Const, Mutability, UserTypeProjection};
use rustc_middle::mir::{self, BorrowKind, Const, Mutability};
use rustc_middle::thir::{
Ascription, BindingMode, FieldPat, LocalVarId, Pat, PatKind, PatRange, PatRangeBoundary,
};
use rustc_middle::ty::layout::IntegerExt;
use rustc_middle::ty::{
self, AdtDef, CanonicalUserTypeAnnotation, GenericArg, GenericArgsRef, Region, Ty, TyCtxt,
TypeVisitableExt, UserType,
};
use rustc_middle::ty::{self, CanonicalUserTypeAnnotation, Ty, TyCtxt, TypeVisitableExt};
use rustc_span::def_id::LocalDefId;
use rustc_span::{ErrorGuaranteed, Span, Symbol};
use rustc_span::{ErrorGuaranteed, Span};
use rustc_target::abi::{FieldIdx, Integer};
use std::cmp::Ordering;
@ -701,146 +698,3 @@ impl<'tcx> UserAnnotatedTyHelpers<'tcx> for PatCtxt<'_, 'tcx> {
self.typeck_results
}
}
trait PatternFoldable<'tcx>: Sized {
fn fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
self.super_fold_with(folder)
}
fn super_fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self;
}
trait PatternFolder<'tcx>: Sized {
fn fold_pattern(&mut self, pattern: &Pat<'tcx>) -> Pat<'tcx> {
pattern.super_fold_with(self)
}
fn fold_pattern_kind(&mut self, kind: &PatKind<'tcx>) -> PatKind<'tcx> {
kind.super_fold_with(self)
}
}
impl<'tcx, T: PatternFoldable<'tcx>> PatternFoldable<'tcx> for Box<T> {
fn super_fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
let content: T = (**self).fold_with(folder);
Box::new(content)
}
}
impl<'tcx, T: PatternFoldable<'tcx>> PatternFoldable<'tcx> for Vec<T> {
fn super_fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
self.iter().map(|t| t.fold_with(folder)).collect()
}
}
impl<'tcx, T: PatternFoldable<'tcx>> PatternFoldable<'tcx> for Box<[T]> {
fn super_fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
self.iter().map(|t| t.fold_with(folder)).collect()
}
}
impl<'tcx, T: PatternFoldable<'tcx>> PatternFoldable<'tcx> for Option<T> {
fn super_fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
self.as_ref().map(|t| t.fold_with(folder))
}
}
macro_rules! ClonePatternFoldableImpls {
(<$lt_tcx:tt> $($ty:ty),+) => {
$(
impl<$lt_tcx> PatternFoldable<$lt_tcx> for $ty {
fn super_fold_with<F: PatternFolder<$lt_tcx>>(&self, _: &mut F) -> Self {
Clone::clone(self)
}
}
)+
}
}
ClonePatternFoldableImpls! { <'tcx>
Span, FieldIdx, Mutability, Symbol, LocalVarId, usize,
Region<'tcx>, Ty<'tcx>, BindingMode, AdtDef<'tcx>,
GenericArgsRef<'tcx>, &'tcx GenericArg<'tcx>, UserType<'tcx>,
UserTypeProjection, CanonicalUserTypeAnnotation<'tcx>
}
impl<'tcx> PatternFoldable<'tcx> for FieldPat<'tcx> {
fn super_fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
FieldPat { field: self.field.fold_with(folder), pattern: self.pattern.fold_with(folder) }
}
}
impl<'tcx> PatternFoldable<'tcx> for Pat<'tcx> {
fn fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
folder.fold_pattern(self)
}
fn super_fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
Pat {
ty: self.ty.fold_with(folder),
span: self.span.fold_with(folder),
kind: self.kind.fold_with(folder),
}
}
}
impl<'tcx> PatternFoldable<'tcx> for PatKind<'tcx> {
fn fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
folder.fold_pattern_kind(self)
}
fn super_fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self {
match *self {
PatKind::Wild => PatKind::Wild,
PatKind::Error(e) => PatKind::Error(e),
PatKind::AscribeUserType {
ref subpattern,
ascription: Ascription { ref annotation, variance },
} => PatKind::AscribeUserType {
subpattern: subpattern.fold_with(folder),
ascription: Ascription { annotation: annotation.fold_with(folder), variance },
},
PatKind::Binding { mutability, name, mode, var, ty, ref subpattern, is_primary } => {
PatKind::Binding {
mutability: mutability.fold_with(folder),
name: name.fold_with(folder),
mode: mode.fold_with(folder),
var: var.fold_with(folder),
ty: ty.fold_with(folder),
subpattern: subpattern.fold_with(folder),
is_primary,
}
}
PatKind::Variant { adt_def, args, variant_index, ref subpatterns } => {
PatKind::Variant {
adt_def: adt_def.fold_with(folder),
args: args.fold_with(folder),
variant_index,
subpatterns: subpatterns.fold_with(folder),
}
}
PatKind::Leaf { ref subpatterns } => {
PatKind::Leaf { subpatterns: subpatterns.fold_with(folder) }
}
PatKind::Deref { ref subpattern } => {
PatKind::Deref { subpattern: subpattern.fold_with(folder) }
}
PatKind::Constant { value } => PatKind::Constant { value },
PatKind::InlineConstant { def, subpattern: ref pattern } => {
PatKind::InlineConstant { def, subpattern: pattern.fold_with(folder) }
}
PatKind::Range(ref range) => PatKind::Range(range.clone()),
PatKind::Slice { ref prefix, ref slice, ref suffix } => PatKind::Slice {
prefix: prefix.fold_with(folder),
slice: slice.fold_with(folder),
suffix: suffix.fold_with(folder),
},
PatKind::Array { ref prefix, ref slice, ref suffix } => PatKind::Array {
prefix: prefix.fold_with(folder),
slice: slice.fold_with(folder),
suffix: suffix.fold_with(folder),
},
PatKind::Or { ref pats } => PatKind::Or { pats: pats.fold_with(folder) },
}
}
}