# Type Alias rustc_infer::traits::SelectionCache

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    pub type SelectionCache<'tcx> = Cache<(ParamEnv<'tcx>, TraitPredicate<TyCtxt<'tcx>>), Result<Option<SelectionCandidate<'tcx>>, SelectionError<'tcx>>>;

## Aliased Type§

    struct SelectionCache<'tcx> { /* private fields */ }

## 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: 40 bytes