# Function rustc_abi::layout::layout_of_enum

source ·

    fn layout_of_enum<'a, LC, FieldIdx: Idx, VariantIdx: Idx, F>(
        layout_calc: &LC,
        repr: &ReprOptions,
        variants: &IndexSlice<VariantIdx, IndexVec<FieldIdx, F>>,
        discr_range_of_repr: impl Fn(i128, i128) -> (Integer, bool),
        discriminants: impl Iterator<Item = (VariantIdx, i128)>,
        dont_niche_optimize_enum: bool,
        dl: &TargetDataLayout,
    ) -> Option<LayoutS<FieldIdx, VariantIdx>>where
        LC: LayoutCalculator + ?Sized,
        F: Deref<Target = &'a LayoutS<FieldIdx, VariantIdx>> + Debug,