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valtree construction: keep track of which type was valtree-incompatible

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This commit is contained in:
Ralf Jung
2024-07-13 16:13:55 +02:00
parent 52f3c71c8d
commit fa74a9e6aa
11 changed files with 37 additions and 35 deletions
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6
compiler/rustc_infer/src/infer/mod.rs
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@@ -1427,17 +1427,17 @@ impl<'tcx> InferCtxt<'tcx> {
span: Span,
) -> Result<ty::Const<'tcx>, ErrorHandled> {
match self.const_eval_resolve(param_env, unevaluated, span) {
Ok(Some(val)) => Ok(ty::Const::new_value(
Ok(Ok(val)) => Ok(ty::Const::new_value(
self.tcx,
val,
self.tcx.type_of(unevaluated.def).instantiate(self.tcx, unevaluated.args),
)),
Ok(None) => {
Ok(Err(bad_ty)) => {
let tcx = self.tcx;
let def_id = unevaluated.def;
span_bug!(
tcx.def_span(def_id),
"unable to construct a constant value for the unevaluated constant {:?}",
"unable to construct a valtree for the unevaluated constant {:?}: type {bad_ty} is not valtree-compatible",
unevaluated
);
}