Function rustc_mir::interpret::eval_body_as_integer

pub fn eval_body_as_integer<'a, 'tcx>(
    tcx: TyCtxt<'a, 'tcx, 'tcx>, 
    param_env: ParamEnv<'tcx>, 
    instance: Instance<'tcx>
) -> EvalResult<'tcx, ConstInt>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?