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//! `TypeFoldable` implementations for MIR types
use rustc_ast::InlineAsmTemplatePiece;
use super::*;
use crate::ty;
TrivialTypeTraversalAndLiftImpls! {
BlockTailInfo,
MirPhase,
SourceInfo,
FakeReadCause,
RetagKind,
SourceScope,
SourceScopeLocalData,
UserTypeAnnotationIndex,
BorrowKind,
CastKind,
NullOp,
hir::Movability,
BasicBlock,
SwitchTargets,
GeneratorKind,
GeneratorSavedLocal,
}
TrivialTypeTraversalImpls! {
for <'tcx> {
ConstValue<'tcx>,
}
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx [InlineAsmTemplatePiece] {
fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, _folder: &mut F) -> Result<Self, F::Error> {
Ok(self)
}
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx [Span] {
fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, _folder: &mut F) -> Result<Self, F::Error> {
Ok(self)
}
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<PlaceElem<'tcx>> {
fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, folder: &mut F) -> Result<Self, F::Error> {
ty::util::fold_list(self, folder, |tcx, v| tcx.intern_place_elems(v))
}
}
impl<'tcx, R: Idx, C: Idx> TypeFoldable<'tcx> for BitMatrix<R, C> {
fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, _: &mut F) -> Result<Self, F::Error> {
Ok(self)
}
}
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