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implement the skeleton of the updated trait solver

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lcnr
2022-12-04 03:19:10 +00:00
parent 4653c93e44
commit a213bb36c9
21 changed files with 1569 additions and 87 deletions
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10
compiler/rustc_middle/src/infer/canonical.rs
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@@ -300,6 +300,16 @@ impl<'tcx, V> Canonical<'tcx, V> {
let Canonical { max_universe, variables, value } = self;
Canonical { max_universe, variables, value: map_op(value) }
}
/// Allows you to map the `value` of a canonical while keeping the same set of
/// bound variables.
///
/// **WARNING:** This function is very easy to mis-use, hence the name! See
/// the comment of [Canonical::unchecked_map] for more details.
pub fn unchecked_rebind<W>(self, value: W) -> Canonical<'tcx, W> {
let Canonical { max_universe, variables, value: _ } = self;
Canonical { max_universe, variables, value }
}
}
pub type QueryOutlivesConstraint<'tcx> = (