Trait Merge

pub trait Merge: Default {
    // Required methods
    fn merge(&mut self, other: Self);
    fn is_empty(&self) -> bool;

    // Provided method
    fn take(&mut self) -> Option<Self> { ... }
}

Trait that makes an object mergeable.

Required Methods

fn merge(&mut self, other: Self)

Merge another object of the same type onto self.

fn is_empty(&self) -> bool

Returns whether the structure is considered empty.

Provided Methods

fn take(&mut self) -> Option<Self>

Take the value, replacing it with the default value.

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.

Implementations on Foreign Types

impl Merge for ()

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<K: Ord, V> Merge for BTreeMap<K, V>

fn merge(&mut self, other: Self)

fn is_empty(&self) -> bool

impl<T0> Merge for (T0,)

where T0: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1> Merge for (T0, T1)

where T0: Merge, T1: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1, T2> Merge for (T0, T1, T2)

where T0: Merge, T1: Merge, T2: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1, T2, T3> Merge for (T0, T1, T2, T3)

where T0: Merge, T1: Merge, T2: Merge, T3: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1, T2, T3, T4> Merge for (T0, T1, T2, T3, T4)

where T0: Merge, T1: Merge, T2: Merge, T3: Merge, T4: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1, T2, T3, T4, T5> Merge for (T0, T1, T2, T3, T4, T5)

where T0: Merge, T1: Merge, T2: Merge, T3: Merge, T4: Merge, T5: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1, T2, T3, T4, T5, T6> Merge for (T0, T1, T2, T3, T4, T5, T6)

where T0: Merge, T1: Merge, T2: Merge, T3: Merge, T4: Merge, T5: Merge, T6: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1, T2, T3, T4, T5, T6, T7> Merge for (T0, T1, T2, T3, T4, T5, T6, T7)

where T0: Merge, T1: Merge, T2: Merge, T3: Merge, T4: Merge, T5: Merge, T6: Merge, T7: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8> Merge for (T0, T1, T2, T3, T4, T5, T6, T7, T8)

where T0: Merge, T1: Merge, T2: Merge, T3: Merge, T4: Merge, T5: Merge, T6: Merge, T7: Merge, T8: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> Merge for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9)

where T0: Merge, T1: Merge, T2: Merge, T3: Merge, T4: Merge, T5: Merge, T6: Merge, T7: Merge, T8: Merge, T9: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Merge for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)

where T0: Merge, T1: Merge, T2: Merge, T3: Merge, T4: Merge, T5: Merge, T6: Merge, T7: Merge, T8: Merge, T9: Merge, T10: Merge,

fn merge(&mut self, _other: Self)

fn is_empty(&self) -> bool

impl<T> Merge for Vec<T>

fn merge(&mut self, other: Self)

fn is_empty(&self) -> bool

impl<T: Ord> Merge for BTreeSet<T>

fn merge(&mut self, other: Self)

fn is_empty(&self) -> bool

Implementors