bjoernager/rust
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Add has_default to GenericParamDefKind::Const

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This currently creates a field which is always false on GenericParamDefKind for future use when
consts are permitted to have defaults

Update const_generics:default locations

Previously just ignored them, now actually do something about them.

Fix using type check instead of value

Add parsing

This adds all the necessary changes to lower const-generics defaults from parsing.

Change P<Expr> to AnonConst

This matches the arguments passed to instantiations of const generics, and makes it specific to
just anonymous constants.

Attempt to fix lowering bugs
This commit is contained in:
kadmin 2020-08-11 00:02:45 +00:00
parent 79e5814f45
commit e4e5db4e42
39 changed files with 158 additions and 77 deletions
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9
compiler/rustc_privacy/src/lib.rs
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@ -928,8 +928,13 @@ impl ReachEverythingInTheInterfaceVisitor<'_, 'tcx> {
self.visit(self.ev.tcx.type_of(param.def_id));
}
}
GenericParamDefKind::Const => {
GenericParamDefKind::Const { has_default, .. } => {
self.visit(self.ev.tcx.type_of(param.def_id));
if has_default {
// how should the error case be handled here?
// let default_const = self.ev.tcx.const_eval_poly(param.def_id).unwrap();
// self.visit(default_const);
}
}
}
}
@ -1741,7 +1746,7 @@ impl SearchInterfaceForPrivateItemsVisitor<'tcx> {
self.visit(self.tcx.type_of(param.def_id));
}
}
GenericParamDefKind::Const => {
GenericParamDefKind::Const { .. } => {
self.visit(self.tcx.type_of(param.def_id));
}
}