Enum rustc_middle::mir::AssertKind
source · pub enum AssertKind<O> {
BoundsCheck {
len: O,
index: O,
},
Overflow(BinOp, O, O),
OverflowNeg(O),
DivisionByZero(O),
RemainderByZero(O),
ResumedAfterReturn(GeneratorKind),
ResumedAfterPanic(GeneratorKind),
MisalignedPointerDereference {
required: O,
found: O,
},
}
Expand description
Information about an assertion failure.
Variants§
BoundsCheck
Overflow(BinOp, O, O)
OverflowNeg(O)
DivisionByZero(O)
RemainderByZero(O)
ResumedAfterReturn(GeneratorKind)
ResumedAfterPanic(GeneratorKind)
MisalignedPointerDereference
Implementations§
source§impl<O> AssertKind<O>
impl<O> AssertKind<O>
sourcepub fn is_optional_overflow_check(&self) -> bool
pub fn is_optional_overflow_check(&self) -> bool
Returns true if this an overflow checking assertion controlled by -C overflow-checks.
sourcepub fn description(&self) -> &'static str
pub fn description(&self) -> &'static str
Get the message that is printed at runtime when this assertion fails.
The caller is expected to handle BoundsCheck
and MisalignedPointerDereference
by
invoking the appropriate lang item (panic_bounds_check/panic_misaligned_pointer_dereference)
instead of printing a static message.
sourcepub fn fmt_assert_args<W: Write>(&self, f: &mut W) -> Resultwhere
O: Debug,
pub fn fmt_assert_args<W: Write>(&self, f: &mut W) -> Resultwhere O: Debug,
Format the message arguments for the assert(cond, msg..)
terminator in MIR printing.
Needs to be kept in sync with the run-time behavior (which is defined by
AssertKind::description
and the lang items mentioned in its docs).
Note that we deliberately show more details here than we do at runtime, such as the actual
numbers that overflowed – it is much easier to do so here than at runtime.
sourcepub fn diagnostic_message(&self) -> DiagnosticMessage
pub fn diagnostic_message(&self) -> DiagnosticMessage
Format the diagnostic message for use in a lint (e.g. when the assertion fails during const-eval).
Needs to be kept in sync with the run-time behavior (which is defined by
AssertKind::description
and the lang items mentioned in its docs).
Note that we deliberately show more details here than we do at runtime, such as the actual
numbers that overflowed – it is much easier to do so here than at runtime.
pub fn add_args( self, adder: &mut dyn FnMut(Cow<'static, str>, DiagnosticArgValue<'static>) )where O: Debug,
Trait Implementations§
source§impl<O: Clone> Clone for AssertKind<O>
impl<O: Clone> Clone for AssertKind<O>
source§fn clone(&self) -> AssertKind<O>
fn clone(&self) -> AssertKind<O>
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl<O: Debug> Debug for AssertKind<O>
impl<O: Debug> Debug for AssertKind<O>
source§impl<'tcx, O, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for AssertKind<O>where
O: Decodable<__D>,
impl<'tcx, O, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for AssertKind<O>where O: Decodable<__D>,
source§impl<'tcx, O, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for AssertKind<O>where
O: Encodable<__E>,
impl<'tcx, O, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for AssertKind<O>where O: Encodable<__E>,
source§impl<O: Hash> Hash for AssertKind<O>
impl<O: Hash> Hash for AssertKind<O>
source§impl<'__ctx, O> HashStable<StableHashingContext<'__ctx>> for AssertKind<O>where
O: HashStable<StableHashingContext<'__ctx>>,
impl<'__ctx, O> HashStable<StableHashingContext<'__ctx>> for AssertKind<O>where O: HashStable<StableHashingContext<'__ctx>>,
fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher )
source§impl<O: PartialEq> PartialEq<AssertKind<O>> for AssertKind<O>
impl<O: PartialEq> PartialEq<AssertKind<O>> for AssertKind<O>
source§fn eq(&self, other: &AssertKind<O>) -> bool
fn eq(&self, other: &AssertKind<O>) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl<'tcx, O> TypeFoldable<TyCtxt<'tcx>> for AssertKind<O>where
O: TypeFoldable<TyCtxt<'tcx>>,
impl<'tcx, O> TypeFoldable<TyCtxt<'tcx>> for AssertKind<O>where O: TypeFoldable<TyCtxt<'tcx>>,
source§fn try_fold_with<__F: FallibleTypeFolder<TyCtxt<'tcx>>>(
self,
__folder: &mut __F
) -> Result<Self, __F::Error>
fn try_fold_with<__F: FallibleTypeFolder<TyCtxt<'tcx>>>( self, __folder: &mut __F ) -> Result<Self, __F::Error>
source§fn fold_with<F>(self, folder: &mut F) -> Selfwhere
F: TypeFolder<I>,
fn fold_with<F>(self, folder: &mut F) -> Selfwhere F: TypeFolder<I>,
try_fold_with
for use with infallible
folders. Do not override this method, to ensure coherence with
try_fold_with
.source§impl<'tcx, O> TypeVisitable<TyCtxt<'tcx>> for AssertKind<O>where
O: TypeVisitable<TyCtxt<'tcx>>,
impl<'tcx, O> TypeVisitable<TyCtxt<'tcx>> for AssertKind<O>where O: TypeVisitable<TyCtxt<'tcx>>,
source§fn visit_with<__V: TypeVisitor<TyCtxt<'tcx>>>(
&self,
__visitor: &mut __V
) -> ControlFlow<__V::BreakTy>
fn visit_with<__V: TypeVisitor<TyCtxt<'tcx>>>( &self, __visitor: &mut __V ) -> ControlFlow<__V::BreakTy>
impl<O> StructuralPartialEq for AssertKind<O>
Auto Trait Implementations§
impl<O> RefUnwindSafe for AssertKind<O>where O: RefUnwindSafe,
impl<O> Send for AssertKind<O>where O: Send,
impl<O> Sync for AssertKind<O>where O: Sync,
impl<O> Unpin for AssertKind<O>where O: Unpin,
impl<O> UnwindSafe for AssertKind<O>where O: UnwindSafe,
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<Tcx, T> DepNodeParams<Tcx> for Twhere
Tcx: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Tcx, T> DepNodeParams<Tcx> for Twhere Tcx: DepContext, T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
default fn fingerprint_style() -> FingerprintStyle
source§default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
default fn to_debug_str(&self, _: Tcx) -> String
source§default fn recover(_: Tcx, _: &DepNode) -> Option<T>
default fn recover(_: Tcx, _: &DepNode) -> Option<T>
DepNode
,
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evaluation. The query system will only call this method if
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source§fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
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if self
has any late-bound regions that are either
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true
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fn has_escaping_bound_vars(&self) -> bool
true
if this type has regions that are not a part of the type.
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fn has_projections(&self) -> bool
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fn has_opaque_types(&self) -> bool
fn has_generators(&self) -> bool
fn references_error(&self) -> bool
fn error_reported(&self) -> Result<(), ErrorGuaranteed>
fn has_non_region_param(&self) -> bool
fn has_infer_regions(&self) -> bool
fn has_infer_types(&self) -> bool
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fn has_erasable_regions(&self) -> bool
source§fn is_global(&self) -> bool
fn is_global(&self) -> bool
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