[][src]Struct rustc::infer::combine::Generalizer

struct Generalizer<'cx, 'gcx: 'cx + 'tcx, 'tcx: 'cx> {
    infcx: &'cx InferCtxt<'cx, 'gcx, 'tcx>,
    span: Span,
    for_vid_sub_root: TyVid,
    ambient_variance: Variance,
    needs_wf: bool,
    root_ty: Ty<'tcx>,
}
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Fields

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Span, used when creating new type variables and things.

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The vid of the type variable that is in the process of being instantiated; if we find this within the type we are folding, that means we would have created a cyclic type.

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Track the variance as we descend into the type.

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See the field needs_wf in Generalization.

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The root type that we are generalizing. Used when reporting cycles.

Trait Implementations

impl<'cx, 'gcx, 'tcx> TypeRelation<'cx, 'gcx, 'tcx> for Generalizer<'cx, 'gcx, 'tcx>
[src]

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Returns a static string we can use for printouts.

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Returns true if the value a is the "expected" type in the relation. Just affects error messages. Read more

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

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Relate the two substitutions for the given item. The default is to look up the variance for the item and proceed accordingly. Read more

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Switch variance for the purpose of relating a and b.

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🔬 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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Generic relation routine suitable for most anything.

Auto Trait Implementations

impl<'cx, 'gcx, 'tcx> !Send for Generalizer<'cx, 'gcx, 'tcx>

impl<'cx, 'gcx, 'tcx> !Sync for Generalizer<'cx, 'gcx, 'tcx>

Blanket Implementations

impl<T> MaybeResult for T
[src]

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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]

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.

🔬 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]

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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
[src]

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