## ProvidedValue

# Type Alias ProvidedValue

Source

    pub type ProvidedValue<'tcx> = DestructuredConst<'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 struct ProvidedValue<'tcx> {
        pub variant: Option<VariantIdx>,
        pub fields: &'tcx [Const<'tcx>],
    }

## Fields§

§`variant: Option<VariantIdx>`§`fields: &'tcx [Const<'tcx>]`

## 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