Struct rustc_borrowck::type_check::TypeVerifier
source · struct TypeVerifier<'a, 'b, 'tcx> {
cx: &'a mut TypeChecker<'b, 'tcx>,
promoted: &'b IndexSlice<Promoted, Body<'tcx>>,
last_span: Span,
}
Expand description
Verifies that MIR types are sane to not crash further checks.
The sanitize_XYZ methods here take an MIR object and compute its
type, calling span_mirbug
and returning an error type if there
is a problem.
Fields§
§cx: &'a mut TypeChecker<'b, 'tcx>
§promoted: &'b IndexSlice<Promoted, Body<'tcx>>
§last_span: Span
Implementations§
source§impl<'a, 'b, 'tcx> TypeVerifier<'a, 'b, 'tcx>
impl<'a, 'b, 'tcx> TypeVerifier<'a, 'b, 'tcx>
fn new( cx: &'a mut TypeChecker<'b, 'tcx>, promoted: &'b IndexSlice<Promoted, Body<'tcx>>, ) -> Self
fn body(&self) -> &Body<'tcx>
fn tcx(&self) -> TyCtxt<'tcx>
fn sanitize_type(&mut self, parent: &dyn Debug, ty: Ty<'tcx>) -> Ty<'tcx>
sourcefn sanitize_place(
&mut self,
place: &Place<'tcx>,
location: Location,
context: PlaceContext,
) -> PlaceTy<'tcx>
fn sanitize_place( &mut self, place: &Place<'tcx>, location: Location, context: PlaceContext, ) -> PlaceTy<'tcx>
Checks that the types internal to the place
match up with
what would be expected.
fn sanitize_promoted( &mut self, promoted_body: &'b Body<'tcx>, location: Location, )
fn sanitize_projection( &mut self, base: PlaceTy<'tcx>, pi: PlaceElem<'tcx>, place: &Place<'tcx>, location: Location, context: PlaceContext, ) -> PlaceTy<'tcx>
fn error(&mut self) -> Ty<'tcx>
fn get_ambient_variance(&self, context: PlaceContext) -> Variance
fn field_ty( &mut self, parent: &dyn Debug, base_ty: PlaceTy<'tcx>, field: FieldIdx, location: Location, ) -> Result<Ty<'tcx>, FieldAccessError>
Trait Implementations§
source§impl<'a, 'b, 'tcx> Visitor<'tcx> for TypeVerifier<'a, 'b, 'tcx>
impl<'a, 'b, 'tcx> Visitor<'tcx> for TypeVerifier<'a, 'b, 'tcx>
fn visit_span(&mut self, span: Span)
fn visit_place( &mut self, place: &Place<'tcx>, context: PlaceContext, location: Location, )
source§fn visit_const_operand(
&mut self,
constant: &ConstOperand<'tcx>,
location: Location,
)
fn visit_const_operand( &mut self, constant: &ConstOperand<'tcx>, location: Location, )
This is called for every constant in the MIR body and every
required_consts
(i.e., including consts that have been dead-code-eliminated).fn visit_rvalue(&mut self, rvalue: &Rvalue<'tcx>, location: Location)
fn visit_local_decl(&mut self, local: Local, local_decl: &LocalDecl<'tcx>)
fn visit_body(&mut self, body: &Body<'tcx>)
fn visit_basic_block_data( &mut self, block: BasicBlock, data: &BasicBlockData<'tcx>, )
fn visit_source_scope_data(&mut self, scope_data: &SourceScopeData<'tcx>)
fn visit_statement(&mut self, statement: &Statement<'tcx>, location: Location)
fn visit_assign( &mut self, place: &Place<'tcx>, rvalue: &Rvalue<'tcx>, location: Location, )
fn visit_terminator( &mut self, terminator: &Terminator<'tcx>, location: Location, )
fn visit_assert_message( &mut self, msg: &AssertKind<Operand<'tcx>>, location: Location, )
fn visit_operand(&mut self, operand: &Operand<'tcx>, location: Location)
fn visit_ascribe_user_ty( &mut self, place: &Place<'tcx>, variance: Variance, user_ty: &UserTypeProjection, location: Location, )
fn visit_coverage(&mut self, kind: &CoverageKind, location: Location)
fn visit_retag( &mut self, kind: RetagKind, place: &Place<'tcx>, location: Location, )
fn visit_projection( &mut self, place_ref: PlaceRef<'tcx>, context: PlaceContext, location: Location, )
fn visit_projection_elem( &mut self, place_ref: PlaceRef<'tcx>, elem: ProjectionElem<Local, Ty<'tcx>>, context: PlaceContext, location: Location, )
fn super_place( &mut self, place: &Place<'tcx>, context: PlaceContext, location: Location, )
fn super_projection( &mut self, place_ref: PlaceRef<'tcx>, context: PlaceContext, location: Location, )
fn super_projection_elem( &mut self, _place_ref: PlaceRef<'tcx>, elem: ProjectionElem<Local, Ty<'tcx>>, _context: PlaceContext, location: Location, )
fn visit_ty_const(&mut self, ct: Const<'tcx>, location: Location)
fn visit_source_info(&mut self, source_info: &SourceInfo)
fn visit_ty(&mut self, ty: Ty<'tcx>, _: TyContext)
fn visit_user_type_projection(&mut self, ty: &UserTypeProjection)
fn visit_user_type_annotation( &mut self, index: UserTypeAnnotationIndex, ty: &CanonicalUserTypeAnnotation<'tcx>, )
fn visit_region(&mut self, region: Region<'tcx>, _: Location)
fn visit_args( &mut self, args: &&'tcx RawList<(), GenericArg<'tcx>>, _: Location, )
fn visit_var_debug_info(&mut self, var_debug_info: &VarDebugInfo<'tcx>)
fn visit_local( &mut self, _local: Local, _context: PlaceContext, _location: Location, )
fn visit_source_scope(&mut self, scope: SourceScope)
fn super_body(&mut self, body: &Body<'tcx>)
fn super_basic_block_data( &mut self, block: BasicBlock, data: &BasicBlockData<'tcx>, )
fn super_source_scope_data(&mut self, scope_data: &SourceScopeData<'tcx>)
fn super_statement(&mut self, statement: &Statement<'tcx>, location: Location)
fn super_assign( &mut self, place: &Place<'tcx>, rvalue: &Rvalue<'tcx>, location: Location, )
fn super_terminator( &mut self, terminator: &Terminator<'tcx>, location: Location, )
fn super_assert_message( &mut self, msg: &AssertKind<Operand<'tcx>>, location: Location, )
fn super_rvalue(&mut self, rvalue: &Rvalue<'tcx>, location: Location)
fn super_operand(&mut self, operand: &Operand<'tcx>, location: Location)
fn super_ascribe_user_ty( &mut self, place: &Place<'tcx>, variance: Variance, user_ty: &UserTypeProjection, location: Location, )
fn super_coverage(&mut self, _kind: &CoverageKind, _location: Location)
fn super_retag( &mut self, _kind: RetagKind, place: &Place<'tcx>, location: Location, )
fn super_local_decl(&mut self, local: Local, local_decl: &LocalDecl<'tcx>)
fn super_var_debug_info(&mut self, var_debug_info: &VarDebugInfo<'tcx>)
fn super_source_scope(&mut self, _scope: SourceScope)
fn super_const_operand( &mut self, constant: &ConstOperand<'tcx>, location: Location, )
fn super_ty_const(&mut self, _ct: Const<'tcx>, _location: Location)
fn super_span(&mut self, _span: Span)
fn super_source_info(&mut self, source_info: &SourceInfo)
fn super_user_type_projection(&mut self, _ty: &UserTypeProjection)
fn super_user_type_annotation( &mut self, _index: UserTypeAnnotationIndex, ty: &CanonicalUserTypeAnnotation<'tcx>, )
fn super_ty(&mut self, _ty: Ty<'tcx>)
fn super_region(&mut self, _region: Region<'tcx>)
fn super_args(&mut self, _args: &&'tcx RawList<(), GenericArg<'tcx>>)
fn visit_location(&mut self, body: &Body<'tcx>, location: Location)
Auto Trait Implementations§
impl<'a, 'b, 'tcx> Freeze for TypeVerifier<'a, 'b, 'tcx>
impl<'a, 'b, 'tcx> !RefUnwindSafe for TypeVerifier<'a, 'b, 'tcx>
impl<'a, 'b, 'tcx> !Send for TypeVerifier<'a, 'b, 'tcx>
impl<'a, 'b, 'tcx> !Sync for TypeVerifier<'a, 'b, 'tcx>
impl<'a, 'b, 'tcx> Unpin for TypeVerifier<'a, 'b, 'tcx>
impl<'a, 'b, 'tcx> !UnwindSafe for TypeVerifier<'a, 'b, 'tcx>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
source§impl<T> Filterable for T
impl<T> Filterable for T
source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
Creates a filterable data provider with the given name for debugging. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§impl<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
source§impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
source§impl<I, T> UpcastFrom<I, T> for T
impl<I, T> UpcastFrom<I, T> for T
fn upcast_from(from: T, _tcx: I) -> T
source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T
source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
impl<T> ErasedDestructor for Twhere
T: 'static,
impl<T> MaybeSendSync for T
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 32 bytes