pub struct RegionRelations<'a, 'gcx: 'tcx, 'tcx: 'a> {
pub tcx: TyCtxt<'a, 'gcx, 'tcx>,
pub context: DefId,
pub region_scope_tree: &'a ScopeTree,
pub free_regions: &'a FreeRegionMap<'tcx>,
}
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Combines a region::ScopeTree
(which governs relationships between
scopes) and a FreeRegionMap
(which governs relationships between
free regions) to yield a complete relation between concrete
regions.
This stuff is a bit convoluted and should be refactored, but as we
move to NLL it'll all go away anyhow.
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context used to fetch the region maps
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region maps for the given context
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free-region relationships
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Determines whether one region is a subregion of another. This is intended to run after
inference and sadly the logic is somewhat duplicated with the code in infer.rs.
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Determines whether this free-region is required to be 'static
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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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🔬 This is a nightly-only experimental API. (try_from
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The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
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Immutably borrows from an owned value. Read more
type Error = <U as TryFrom<T>>::Error
🔬 This is a nightly-only experimental API. (try_from
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The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
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Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (get_type_id
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this method will likely be replaced by an associated static
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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