Type Alias EvalToValTreeResult

pub type EvalToValTreeResult<'tcx> = Result<Result<ValTree<'tcx>, Ty<'tcx>>, ErrorHandled>;

Ok(Err(ty)) indicates the constant was fine, but the valtree couldn’t be constructed because the value contains something of type ty that is not valtree-compatible. The caller can then show an appropriate error; the query does not have the necessary context to give good user-facing errors for this case.

Aliased Type

enum EvalToValTreeResult<'tcx> {
    Ok(Result<ValTree<'tcx>, Ty<'tcx>>),
    Err(ErrorHandled),
}

Variants

Ok(Result<ValTree<'tcx>, Ty<'tcx>>)

Contains the success value

Err(ErrorHandled)

Contains the error value

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes

Size for each variant:

• Ok: 24 bytes
• Err: 16 bytes