Enum StateMutation 

pub enum StateMutation {
    Put(String, Value),
    Delete(String),
}

State 的 Mutation — HashMap 级别的变更。

Variants

Put(String, Value)

设置 key-value

Delete(String)

删除 key

Trait Implementations

impl Clone for StateMutation

fn clone(&self) -> StateMutation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StateMutation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StateMutation

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for StateMutation

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StateMutation<State> for StateMutation

fn apply(self, state: &mut State)

将此 Mutation 应用到目标 State。

fn combine(self, _other: Self) -> Option<Self>

将此 Mutation 合并到另一个同类型 Mutation 中（可选）。