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Better errors for implied static bound

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This commit is contained in:
Jack Huey
2022-08-23 01:13:07 -04:00
parent ff623ffc39
commit c75817b0a7
23 changed files with 345 additions and 99 deletions
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6
compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs
View File

@@ -23,7 +23,7 @@ impl<F, G> CustomTypeOp<F, G> {
}
}
impl<'tcx, F, R, G> super::TypeOp<'tcx> for CustomTypeOp<F, G>
impl<'tcx, F, R: fmt::Debug, G> super::TypeOp<'tcx> for CustomTypeOp<F, G>
where
F: for<'a, 'cx> FnOnce(&'a InferCtxt<'cx, 'tcx>) -> Fallible<InferOk<'tcx, R>>,
G: Fn() -> String,
@@ -89,8 +89,8 @@ pub fn scrape_region_constraints<'tcx, Op: super::TypeOp<'tcx, Output = R>, R>(
infcx.tcx,
region_obligations
.iter()
.map(|r_o| (r_o.sup_type, r_o.sub_region))
.map(|(ty, r)| (infcx.resolve_vars_if_possible(ty), r)),
.map(|r_o| (r_o.sup_type, r_o.sub_region, r_o.origin.to_constraint_category()))
.map(|(ty, r, cc)| (infcx.resolve_vars_if_possible(ty), r, cc)),
&region_constraint_data,
);

2
compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs
View File

@@ -26,7 +26,7 @@ pub use rustc_middle::traits::query::type_op::*;
/// extract out the resulting region constraints (or an error if it
/// cannot be completed).
pub trait TypeOp<'tcx>: Sized + fmt::Debug {
type Output;
type Output: fmt::Debug;
type ErrorInfo;
/// Processes the operation and all resulting obligations,