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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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10
compiler/rustc_const_eval/src/const_eval/mod.rs
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@@ -27,15 +27,15 @@ pub(crate) use valtrees::{eval_to_valtree, valtree_to_const_value};
// We forbid type-level constants that contain more than `VALTREE_MAX_NODES` nodes.
const VALTREE_MAX_NODES: usize = 100000;
pub(crate) enum ValTreeCreationError {
pub(crate) enum ValTreeCreationError<'tcx> {
NodesOverflow,
/// Values of this type, or this particular value, are not supported as valtrees.
NonSupportedType,
NonSupportedType(Ty<'tcx>),
}
pub(crate) type ValTreeCreationResult<'tcx> = Result<ty::ValTree<'tcx>, ValTreeCreationError>;
pub(crate) type ValTreeCreationResult<'tcx> = Result<ty::ValTree<'tcx>, ValTreeCreationError<'tcx>>;
impl From<InterpErrorInfo<'_>> for ValTreeCreationError {
fn from(err: InterpErrorInfo<'_>) -> Self {
impl<'tcx> From<InterpErrorInfo<'tcx>> for ValTreeCreationError<'tcx> {
fn from(err: InterpErrorInfo<'tcx>) -> Self {
ty::tls::with(|tcx| {
bug!(
"Unexpected Undefined Behavior error during valtree construction: {}",