[][src]Enum rustc::mir::StatementKind

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(ValidationOpVec<ValidationOperand<'tcx, Place<'tcx>>>),
    EndRegion(Scope),
    AscribeUserType(Place<'tcx>, VarianceCanonicalTy<'tcx>),
    Nop,
}
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Variants

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Write the RHS Rvalue to the LHS Place.

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This represents all the reading that a pattern match may do (e.g. inspecting constants and discriminant values).

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Write the discriminant for a variant to the enum Place.

Fields of SetDiscriminant

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Start a live range for the storage of the local.

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End the current live range for the storage of the local.

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Execute a piece of inline Assembly.

Fields of InlineAsm

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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.

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Mark one terminating point of a region scope (i.e. static region). (The starting point(s) arise implicitly from borrows.)

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Encodes a user's type ascription. These need to be preserved intact so that NLL can respect them. For example:

let a: T = y;

The effect of this annotation is to relate the type T_y of the place y to the user-given type T. The effect depends on the specified variance:

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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>
[src]

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impl<'tcx> Clone for StatementKind<'tcx>
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl<'tcx> Debug for StatementKind<'tcx>
[src]

Formats the value using the given formatter. Read more

impl<'tcx> Encodable for StatementKind<'tcx>
[src]

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impl<'tcx> Decodable for StatementKind<'tcx>
[src]

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impl<'tcx> TypeFoldable<'tcx> for StatementKind<'tcx>
[src]

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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

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True if this self has any regions that escape binder (and hence are not bound by it). Read more

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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

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True if there any any un-erased free regions.

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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

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True if there are any late-bound regions

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A visitor that does not recurse into types, works like fn walk_shallow in Ty.

Auto Trait Implementations

impl<'tcx> !Send for StatementKind<'tcx>

impl<'tcx> !Sync for StatementKind<'tcx>

Blanket Implementations

impl<T> MaybeResult for T
[src]

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impl<'tcx, T> Subst for T where
    T: TypeFoldable<'tcx>, 
[src]

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impl<'a, T> Captures for T where
    T: ?Sized
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

Creates owned data from borrowed data, usually by cloning. Read more

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recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> From for T
[src]

Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
[src]

Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
[src]

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The type returned in the event of a conversion error.

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Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
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Important traits for &'a mut R

Immutably borrows from an owned value. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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The type returned in the event of a conversion error.

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Performs the conversion.

impl<T> BorrowMut for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Mutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
[src]

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this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<T> Encodable for T where
    T: UseSpecializedEncodable + ?Sized
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impl<T> Decodable for T where
    T: UseSpecializedDecodable
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impl<E> SpecializationError for E
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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more

impl<T> Erased for T
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impl<T> Send for T where
    T: ?Sized
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impl<T> Sync for T where
    T: ?Sized
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impl<T> Erased for T