Type Alias ProvidedValue

Source
pub type ProvidedValue<'tcx> = Result<bool, &'tcx LayoutError<'tcx>>;
Expand description

This type alias specifies the type returned from query providers and the type used for decoding. For regular queries this is the declared returned type V, but arena_cache will use <V as ArenaCached>::Provided instead.

Aliased Type§

pub enum ProvidedValue<'tcx> {
    Ok(bool),
    Err(&'tcx LayoutError<'tcx>),
}

Variants§

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Ok(bool)

Contains the success value

§

Err(&'tcx LayoutError<'tcx>)

Contains the error value

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.