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Auto merge of #82159 - BoxyUwU:uwu, r=varkor

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Use correct param_env in conservative_is_privately_uninhabited

cc `@lcnr`
r? `@varkor` since this is your FIXME that was removed ^^
This commit is contained in:
bors 2021-02-24 21:54:52 +00:00
commit 1fdadbf13a
9 changed files with 131 additions and 57 deletions
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10
compiler/rustc_middle/src/query/mod.rs
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@ -1603,4 +1603,14 @@ rustc_queries! {
query normalize_opaque_types(key: &'tcx ty::List<ty::Predicate<'tcx>>) -> &'tcx ty::List<ty::Predicate<'tcx>> {
desc { "normalizing opaque types in {:?}", key }
}
/// Checks whether a type is definitely uninhabited. This is
/// conservative: for some types that are uninhabited we return `false`,
/// but we only return `true` for types that are definitely uninhabited.
/// `ty.conservative_is_privately_uninhabited` implies that any value of type `ty`
/// will be `Abi::Uninhabited`. (Note that uninhabited types may have nonzero
/// size, to account for partial initialisation. See #49298 for details.)
query conservative_is_privately_uninhabited(key: ty::ParamEnvAnd<'tcx, Ty<'tcx>>) -> bool {
desc { "conservatively checking if {:?} is privately uninhabited", key }
}
}