Struct collection::Key
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pub struct Key<K>(_);
A key, K is usually T::Key where T: Keyed
Methods
impl<K> Key<K>[src]
fn new(key: K) -> Self
Construct a new Key
Trait Implementations
impl<K: Clone> Clone for Key<K>[src]
fn clone(&self) -> Key<K>
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0
Performs copy-assignment from source. Read more
impl<K: PartialEq> PartialEq for Key<K>[src]
fn eq(&self, __arg_0: &Key<K>) -> bool
This method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, __arg_0: &Key<K>) -> bool
This method tests for !=.
impl<K: Eq> Eq for Key<K>[src]
impl<K: PartialOrd> PartialOrd for Key<K>[src]
fn partial_cmp(&self, __arg_0: &Key<K>) -> Option<Ordering>
This method returns an ordering between self and other values if one exists. Read more
fn lt(&self, __arg_0: &Key<K>) -> bool
This method tests less than (for self and other) and is used by the < operator. Read more
fn le(&self, __arg_0: &Key<K>) -> bool
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
fn gt(&self, __arg_0: &Key<K>) -> bool
This method tests greater than (for self and other) and is used by the > operator. Read more
fn ge(&self, __arg_0: &Key<K>) -> bool
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
impl<K: Ord> Ord for Key<K>[src]
fn cmp(&self, __arg_0: &Key<K>) -> Ordering
This method returns an Ordering between self and other. Read more
impl<T> Meta<T> for Key<T::Key> where T: Val + Keyed[src]
fn from_t(t: &T) -> Self
Construct a metadata value from &T
fn merge(&mut self, other: &Self, _t: PhantomData<T>)
Merge two metadata values, (M, M) -> M