Function rustc_query_impl::make_query::try_destructure_const

source · [−]
pub fn try_destructure_const<'tcx>(
    tcx: QueryCtxt<'tcx>, 
    key: try_destructure_const<'tcx>
) -> QueryStackFrame
Expand description

Destructure a constant ADT or array into its variant index and its field values or return None if constant is invalid.

Use infallible TyCtxt::destructure_const when you know that constant is valid.