Function rustc::traits::project::assemble_candidates_from_trait_def[][src]

fn assemble_candidates_from_trait_def<'cx, 'gcx, 'tcx>(
    selcx: &mut SelectionContext<'cx, 'gcx, 'tcx>,
    obligation: &Obligation<'tcx, ProjectionTy<'tcx>>,
    obligation_trait_ref: &TraitRef<'tcx>,
    candidate_set: &mut ProjectionTyCandidateSet<'tcx>
)
🔬 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?

In the case of a nested projection like <::FooT as Bar>::BarT, we may find that the definition of Foo has some clues:

trait Foo {
    type FooT : Bar<BarT=i32>
}

Here, for example, we could conclude that the result is i32.