Enum rustc::mir::StatementKind [−][src]
pub enum StatementKind<'tcx> { Assign(Place<'tcx>, Rvalue<'tcx>), ReadForMatch(Place<'tcx>), SetDiscriminant { place: Place<'tcx>, variant_index: usize, }, StorageLive(Local), StorageDead(Local), InlineAsm { asm: Box<InlineAsm>, outputs: Vec<Place<'tcx>>, inputs: Vec<Operand<'tcx>>, }, Validate(ValidationOp, Vec<ValidationOperand<'tcx, Place<'tcx>>>), EndRegion(Scope), UserAssertTy(CanonicalTy<'tcx>, Local), Nop, }
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Variants
Assign(Place<'tcx>, Rvalue<'tcx>)
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Write the RHS Rvalue to the LHS Place.
ReadForMatch(Place<'tcx>)
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This represents all the reading that a pattern match may do (e.g. inspecting constants and discriminant values).
SetDiscriminant
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Write the discriminant for a variant to the enum Place.
Fields of SetDiscriminant
place: Place<'tcx> | 🔬 This is a nightly-only experimental API. ( |
variant_index: usize | 🔬 This is a nightly-only experimental API. ( |
StorageLive(Local)
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Start a live range for the storage of the local.
StorageDead(Local)
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End the current live range for the storage of the local.
InlineAsm
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Execute a piece of inline Assembly.
Fields of InlineAsm
asm: Box<InlineAsm> | 🔬 This is a nightly-only experimental API. ( |
outputs: Vec<Place<'tcx>> | 🔬 This is a nightly-only experimental API. ( |
inputs: Vec<Operand<'tcx>> | 🔬 This is a nightly-only experimental API. ( |
Validate(ValidationOp, Vec<ValidationOperand<'tcx, Place<'tcx>>>)
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Assert the given places to be valid inhabitants of their type. These statements are currently only interpreted by miri and only generated when "-Z mir-emit-validate" is passed. See https://internals.rust-lang.org/t/types-as-contracts/5562/73 for more details.
EndRegion(Scope)
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Mark one terminating point of a region scope (i.e. static region). (The starting point(s) arise implicitly from borrows.)
UserAssertTy(CanonicalTy<'tcx>, Local)
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Encodes a user's type assertion. These need to be preserved intact so that NLL can respect them. For example:
let (a, b): (T, U) = y;
Here we would insert a UserAssertTy<(T, U)>(y)
instruction to check that the type of y
is the right thing.
CanonicalTy
is used to capture "inference variables" from the user's types. For example:
let x: Vec<_> = ...; let y: &u32 = ...;
would result in Vec<?0>
and &'?0 u32
respectively (where ?0
is a canonicalized
variable).
Nop
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No-op. Useful for deleting instructions without affecting statement indices.
Trait Implementations
impl<'a, 'gcx> HashStable<StableHashingContext<'a>> for StatementKind<'gcx>
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impl<'a, 'gcx> HashStable<StableHashingContext<'a>> for StatementKind<'gcx>
fn hash_stable<W: StableHasherResult>(
&self,
hcx: &mut StableHashingContext<'a>,
hasher: &mut StableHasher<W>
)
[src]
fn hash_stable<W: StableHasherResult>(
&self,
hcx: &mut StableHashingContext<'a>,
hasher: &mut StableHasher<W>
)
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impl<'tcx> Clone for StatementKind<'tcx>
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impl<'tcx> Clone for StatementKind<'tcx>
fn clone(&self) -> StatementKind<'tcx>
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fn clone(&self) -> StatementKind<'tcx>
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl<'tcx> Debug for StatementKind<'tcx>
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impl<'tcx> Debug for StatementKind<'tcx>
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl<'tcx> Encodable for StatementKind<'tcx>
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impl<'tcx> Encodable for StatementKind<'tcx>
fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>
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fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>
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impl<'tcx> Decodable for StatementKind<'tcx>
[src]
impl<'tcx> Decodable for StatementKind<'tcx>
fn decode<__D: Decoder>(d: &mut __D) -> Result<StatementKind<'tcx>, __D::Error>
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fn decode<__D: Decoder>(d: &mut __D) -> Result<StatementKind<'tcx>, __D::Error>
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impl<'tcx> TypeFoldable<'tcx> for StatementKind<'tcx>
[src]
impl<'tcx> TypeFoldable<'tcx> for StatementKind<'tcx>
fn super_fold_with<'gcx: 'tcx, V: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut V
) -> Self
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fn super_fold_with<'gcx: 'tcx, V: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut V
) -> Self
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fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut F
) -> Self
[src]
fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut F
) -> Self
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fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
[src]
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn has_regions_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
[src]
fn has_regions_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
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True if self
has any late-bound regions that are either bound by binder
or bound by some binder outside of binder
. If binder
is ty::INNERMOST
, this indicates whether there are any late-bound regions that appear free. Read more
fn has_regions_bound_above(&self, binder: DebruijnIndex) -> bool
[src]
fn has_regions_bound_above(&self, binder: DebruijnIndex) -> bool
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True if this self
has any regions that escape binder
(and hence are not bound by it). Read more
fn has_escaping_regions(&self) -> bool
[src]
fn has_escaping_regions(&self) -> bool
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fn has_type_flags(&self, flags: TypeFlags) -> bool
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fn has_type_flags(&self, flags: TypeFlags) -> bool
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fn has_projections(&self) -> bool
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fn has_projections(&self) -> bool
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fn references_error(&self) -> bool
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fn references_error(&self) -> bool
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fn has_param_types(&self) -> bool
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fn has_param_types(&self) -> bool
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fn has_self_ty(&self) -> bool
[src]
fn has_self_ty(&self) -> bool
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fn has_infer_types(&self) -> bool
[src]
fn has_infer_types(&self) -> bool
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fn needs_infer(&self) -> bool
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fn needs_infer(&self) -> bool
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fn has_skol(&self) -> bool
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fn has_skol(&self) -> bool
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fn needs_subst(&self) -> bool
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fn needs_subst(&self) -> bool
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fn has_re_skol(&self) -> bool
[src]
fn has_re_skol(&self) -> bool
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fn has_closure_types(&self) -> bool
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fn has_closure_types(&self) -> bool
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fn has_free_regions(&self) -> bool
[src]
fn has_free_regions(&self) -> bool
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"Free" regions in this context means that it has any region that is not (a) erased or (b) late-bound. Read more
fn has_erasable_regions(&self) -> bool
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fn has_erasable_regions(&self) -> bool
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True if there any any un-erased free regions.
fn is_global(&self) -> bool
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fn is_global(&self) -> bool
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Indicates whether this value references only 'global' types/lifetimes that are the same regardless of what fn we are in. This is used for caching. Read more
fn has_late_bound_regions(&self) -> bool
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fn has_late_bound_regions(&self) -> bool
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True if there are any late-bound regions
Auto Trait Implementations
impl<'tcx> !Send for StatementKind<'tcx>
impl<'tcx> !Send for StatementKind<'tcx>
impl<'tcx> !Sync for StatementKind<'tcx>
impl<'tcx> !Sync for StatementKind<'tcx>