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Make InstantiatedPredicates impl IntoIterator

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This commit is contained in:
Michael Goulet 2023-01-03 03:32:59 +00:00
parent 91fd862df0
commit 9b28edb6d7
12 changed files with 74 additions and 65 deletions
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14
compiler/rustc_trait_selection/src/traits/mod.rs
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@ -115,14 +115,12 @@ pub fn predicates_for_generics<'tcx>(
param_env: ty::ParamEnv<'tcx>,
generic_bounds: ty::InstantiatedPredicates<'tcx>,
) -> impl Iterator<Item = PredicateObligation<'tcx>> {
std::iter::zip(generic_bounds.predicates, generic_bounds.spans).enumerate().map(
move |(idx, (predicate, span))| Obligation {
cause: cause(idx, span),
recursion_depth: 0,
param_env,
predicate,
},
)
generic_bounds.into_iter().enumerate().map(move |(idx, (predicate, span))| Obligation {
cause: cause(idx, span),
recursion_depth: 0,
param_env,
predicate,
})
}
/// Determines whether the type `ty` is known to meet `bound` and