Trait rustc_metadata::rmeta::LazyMeta

trait LazyMeta {
    type Meta: Copy + 'static;
    fn min_size(meta: Self::Meta) -> usize;
}

Additional metadata for a Lazy<T> where T may not be Sized, e.g. for Lazy<[T]>, this is the length (count of T values).

Associated Types

type Meta: Copy + 'static

Required methods

fn min_size(meta: Self::Meta) -> usize

Returns the minimum encoded size.

Implementations on Foreign Types

impl<T> LazyMeta for [T]

type Meta = usize

fn min_size(len: usize) -> usize

Implementors

impl<I: Idx, T> LazyMeta for Table<I, T> where
    Option<T>: FixedSizeEncoding, 

type Meta = usize

impl<T> LazyMeta for T

type Meta = ()