Trait syn_ext::ext::NestedMetaIteratorExt

pub trait NestedMetaIteratorExt<'a> {
    fn into_multi_map_and_lits<K, KF>(
        self, 
        path_to_key: KF
    ) -> Result<(Map<K, Vec<(usize, Meta)>>, Vec<(usize, Lit)>)>
    where
        K: Hash + Eq,
        KF: Fn(&Path) -> Result<Option<K>>;
    fn into_unique_map_and_lits<K, KF>(
        self, 
        path_to_key: KF
    ) -> Result<(Map<K, (usize, Meta)>, Vec<(usize, Lit)>)>
    where
        K: Hash + Eq,
        KF: Fn(&Path) -> Result<Option<K>>;
}

experimental

Required methods

fn into_multi_map_and_lits<K, KF>(
    self,
    path_to_key: KF
) -> Result<(Map<K, Vec<(usize, Meta)>>, Vec<(usize, Lit)>)> where
    K: Hash + Eq,
    KF: Fn(&Path) -> Result<Option<K>>, 

fn into_unique_map_and_lits<K, KF>(
    self,
    path_to_key: KF
) -> Result<(Map<K, (usize, Meta)>, Vec<(usize, Lit)>)> where
    K: Hash + Eq,
    KF: Fn(&Path) -> Result<Option<K>>, 

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Implementors

impl<'a, I> NestedMetaIteratorExt<'a> for I where
    I: IntoIterator<Item = NestedMeta>, 

fn into_multi_map_and_lits<K, KF>(
    self,
    path_to_key: KF
) -> Result<(Map<K, Vec<(usize, Meta)>>, Vec<(usize, Lit)>)> where
    K: Hash + Eq,
    KF: Fn(&Path) -> Result<Option<K>>, 

fn into_unique_map_and_lits<K, KF>(
    self,
    path_to_key: KF
) -> Result<(Map<K, (usize, Meta)>, Vec<(usize, Lit)>)> where
    K: Hash + Eq,
    KF: Fn(&Path) -> Result<Option<K>>, 

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