pub struct Checker<'mir, 'tcx> {
ccx: &'mir ConstCx<'mir, 'tcx>,
qualifs: Qualifs<'mir, 'tcx>,
span: Span,
transient_locals: Option<BitSet<Local>>,
error_emitted: Option<ErrorGuaranteed>,
secondary_errors: Vec<Diag<'tcx>>,
}
Fields§
§ccx: &'mir ConstCx<'mir, 'tcx>
§qualifs: Qualifs<'mir, 'tcx>
§span: Span
The span of the current statement.
transient_locals: Option<BitSet<Local>>
A set that stores for each local whether it is “transient”, i.e. guaranteed to be dead when this MIR body returns.
error_emitted: Option<ErrorGuaranteed>
§secondary_errors: Vec<Diag<'tcx>>
Implementations§
source§impl<'mir, 'tcx> Checker<'mir, 'tcx>
impl<'mir, 'tcx> Checker<'mir, 'tcx>
pub fn new(ccx: &'mir ConstCx<'mir, 'tcx>) -> Self
pub fn check_body(&mut self)
fn local_is_transient(&mut self, local: Local) -> bool
pub fn qualifs_in_return_place(&mut self) -> ConstQualifs
sourcepub fn check_op(&mut self, op: impl NonConstOp<'tcx>)
pub fn check_op(&mut self, op: impl NonConstOp<'tcx>)
Emits an error if an expression cannot be evaluated in the current context.
sourcepub fn check_op_spanned<O: NonConstOp<'tcx>>(&mut self, op: O, span: Span)
pub fn check_op_spanned<O: NonConstOp<'tcx>>(&mut self, op: O, span: Span)
Emits an error at the given span
if an expression cannot be evaluated in the current
context.
fn check_static(&mut self, def_id: DefId, span: Span)
sourcefn place_may_escape(&mut self, place: &Place<'_>) -> bool
fn place_may_escape(&mut self, place: &Place<'_>) -> bool
Returns whether this place can possibly escape the evaluation of the current const/static initializer. The check assumes that all already existing pointers and references point to non-escaping places.
Methods from Deref<Target = ConstCx<'mir, 'tcx>>§
pub(crate) fn dcx(&self) -> DiagCtxtHandle<'tcx>
pub fn def_id(&self) -> LocalDefId
sourcepub fn const_kind(&self) -> ConstContext
pub fn const_kind(&self) -> ConstContext
Returns the kind of const context this Item
represents (const
, static
, etc.).
Panics if this Item
is not const.
pub fn is_const_stable_const_fn(&self) -> bool
fn is_async(&self) -> bool
pub fn fn_sig(&self) -> PolyFnSig<'tcx>
Trait Implementations§
source§impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx>
impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx>
fn visit_basic_block_data( &mut self, bb: BasicBlock, block: &BasicBlockData<'tcx>, )
fn visit_rvalue(&mut self, rvalue: &Rvalue<'tcx>, location: Location)
fn visit_operand(&mut self, op: &Operand<'tcx>, location: Location)
fn visit_source_info(&mut self, source_info: &SourceInfo)
fn visit_statement(&mut self, statement: &Statement<'tcx>, location: Location)
fn visit_terminator( &mut self, terminator: &Terminator<'tcx>, location: Location, )
fn visit_body(&mut self, body: &Body<'tcx>)
fn visit_source_scope_data(&mut self, scope_data: &SourceScopeData<'tcx>)
fn visit_assign( &mut self, place: &Place<'tcx>, rvalue: &Rvalue<'tcx>, location: Location, )
fn visit_assert_message( &mut self, msg: &AssertKind<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_place( &mut self, place: &Place<'tcx>, context: PlaceContext, 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, )
source§fn visit_const_operand(
&mut self,
constant: &ConstOperand<'tcx>,
location: Location,
)
fn visit_const_operand( &mut self, constant: &ConstOperand<'tcx>, location: Location, )
required_consts
(i.e., including consts that have been dead-code-eliminated).fn visit_ty_const(&mut self, ct: Const<'tcx>, location: Location)
fn visit_span(&mut self, span: Span)
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_local_decl(&mut self, local: Local, local_decl: &LocalDecl<'tcx>)
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<'mir, 'tcx> !DynSend for Checker<'mir, 'tcx>
impl<'mir, 'tcx> !DynSync for Checker<'mir, 'tcx>
impl<'mir, 'tcx> Freeze for Checker<'mir, 'tcx>
impl<'mir, 'tcx> !RefUnwindSafe for Checker<'mir, 'tcx>
impl<'mir, 'tcx> !Send for Checker<'mir, 'tcx>
impl<'mir, 'tcx> !Sync for Checker<'mir, 'tcx>
impl<'mir, 'tcx> Unpin for Checker<'mir, 'tcx>
impl<'mir, 'tcx> !UnwindSafe for Checker<'mir, '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
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>
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>
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>
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<T> Pointable for T
impl<T> Pointable 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,
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: 496 bytes