[][src]Struct rustc_mir::dataflow::impls::borrows::Borrows

pub struct Borrows<'a, 'gcx: 'tcx, 'tcx: 'a> {
    tcx: TyCtxt<'a, 'gcx, 'tcx>,
    mir: &'a Mir<'tcx>,
    scope_tree: Lrc<ScopeTree>,
    root_scope: Option<Scope>,
    borrow_set: Rc<BorrowSet<'tcx>>,
    borrows_out_of_scope_at_location: FxHashMap<Location, Vec<BorrowIndex>>,
    _nonlexical_regioncx: Rc<RegionInferenceContext<'tcx>>,
}
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Borrows stores the data used in the analyses that track the flow of borrows.

It uniquely identifies every borrow (Rvalue::Ref) by a BorrowIndex, and maps each such index to a BorrowData describing the borrow. These indexes are used for representing the borrows in compact bitvectors.

Fields

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🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

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🔬 This is a nightly-only experimental API. (rustc_private)

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NLL region inference context with which NLL queries should be resolved

Methods

impl<'a, 'gcx, 'tcx> Borrows<'a, 'gcx, 'tcx>
[src]

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🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

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Add all borrows to the kill set, if those borrows are out of scope at location. That means either they went out of either a nonlexical scope, if we care about those at the moment, or the location represents a lexical EndRegion

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Trait Implementations

impl<'a, 'gcx, 'tcx> BitDenotation for Borrows<'a, 'gcx, 'tcx>
[src]

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Specifies what index type is used to access the bitvector.

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A name describing the dataflow analysis that this BitDenotation is supporting. The name should be something suitable for plugging in as part of a filename e.g. avoid space-characters or other things that tend to look bad on a file system, like slashes or periods. It is also better for the name to be reasonably short, again because it will be plugged into a filename. Read more

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Size of each bitvector allocated for each block in the analysis.

🔬 This is a nightly-only experimental API. (rustc_private)

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Mutates the entry set according to the effects that have been established prior to entering the start block. This can't access the gen/kill sets, because these won't be accounted for correctly. Read more

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Similar to statement_effect, except it applies just before the statement rather than just after it. Read more

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Mutates the block-sets (the flow sets for the given basic block) according to the effects of evaluating statement. Read more

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Similar to terminator_effect, except it applies just before the terminator rather than just after it. Read more

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Mutates the block-sets (the flow sets for the given basic block) according to the effects of evaluating the terminator. Read more

🔬 This is a nightly-only experimental API. (rustc_private)

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Mutates the block-sets according to the (flow-dependent) effect of a successful return from a Call terminator. Read more

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Some analyses want to accumulate knowledge within a block when analyzing its statements for building the gen/kill sets. Override this method to return true in such cases. Read more

impl<'a, 'gcx, 'tcx> BitwiseOperator for Borrows<'a, 'gcx, 'tcx>
[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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Applies some bit-operation pointwise to each of the bits in the two inputs.

impl<'a, 'gcx, 'tcx> InitialFlow for Borrows<'a, 'gcx, 'tcx>
[src]

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Specifies the initial value for each bit in the on_entry set

Auto Trait Implementations

impl<'a, 'gcx, 'tcx> !Send for Borrows<'a, 'gcx, 'tcx>

impl<'a, 'gcx, 'tcx> !Sync for Borrows<'a, 'gcx, 'tcx>

Blanket Implementations

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]

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

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

Important traits for &'a mut R

Immutably borrows from an owned value. Read more

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

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

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]

🔬 This is a nightly-only experimental API. (get_type_id)

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<E> SpecializationError for E
[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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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
[src]

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

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

impl<T> Erased for T

impl<T> MaybeResult for T
[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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🔬 This is a nightly-only experimental API. (rustc_private)

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