pub(crate) struct InstantiateOpaqueType<'tcx> {
    pub base_universe: Option<UniverseIndex>,
    pub region_constraints: Option<RegionConstraintData<'tcx>>,
    pub obligations: Vec<PredicateObligation<'tcx>>,
}
Expand description

Runs infcx.instantiate_opaque_types. Unlike other TypeOps, this is not canonicalized - it directly affects the main InferCtxt that we use during MIR borrowchecking.

Fields

base_universe: Option<UniverseIndex>region_constraints: Option<RegionConstraintData<'tcx>>obligations: Vec<PredicateObligation<'tcx>>

Trait Implementations

Formats the value using the given formatter. Read more

We use this type itself to store the information used when reporting errors. Since this is not a query, we don’t re-run anything during error reporting - we just use the information we saved to help extract an error from the already-existing region constraints in our InferCtxt

Processes the operation and all resulting obligations, returning the final result along with any region constraints (they will be given over to the NLL region solver). Read more
Returns an error to be reported if rerunning the type op fails to recover the error’s cause. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 136 bytes