Trait MetaIteratorExt 

pub trait MetaIteratorExt<'a, M>
where
    M: 'a + Borrow<Meta1>,
{
    // Required methods
    fn to_multi_map<K, KF>(
        self,
        path_to_key: KF,
    ) -> Result<HashMap<K, Vec<(usize, M)>>>
       where K: Hash + Eq,
             KF: Fn(&Path) -> Result<Option<K>>;
    fn to_unique_map<K, KF>(
        self,
        path_to_key: KF,
    ) -> Result<HashMap<K, (usize, M)>>
       where K: Hash + Eq,
             KF: Fn(&Path) -> Result<Option<K>>;
}

Constructs and returns map from syn::Meta iterator

Required Methods

fn to_multi_map<K, KF>( self, path_to_key: KF, ) -> Result<HashMap<K, Vec<(usize, M)>>>

where K: Hash + Eq, KF: Fn(&Path) -> Result<Option<K>>,

Constructs and returns a multi-value map from syn::Meta iterator

fn to_unique_map<K, KF>(self, path_to_key: KF) -> Result<HashMap<K, (usize, M)>>

where K: Hash + Eq, KF: Fn(&Path) -> Result<Option<K>>,

Constructs and returns a unique-value map from syn::Meta iterator. Err if duplicates.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<'a, I, M> MetaIteratorExt<'a, M> for I

where M: 'a + Borrow<Meta1>, I: Iterator<Item = (usize, M)>,