Struct Context 

pub struct Context {
    pub bots: Arc<Mutex<Vec<Arc<Bot>>>>,
    pub current_filter: ContextFilter,
    pub shared_state: Arc<RwLock<EventSystemSharedState>>,
}

Fields

bots: Arc<Mutex<Vec<Arc<Bot>>>>

当前应用的全部机器人实例

current_filter: ContextFilter

当前上下文的过滤器设置

shared_state: Arc<RwLock<EventSystemSharedState>>

对共享状态的引用

Implementations

impl Context

pub fn new_root(shared_state: Arc<RwLock<EventSystemSharedState>>) -> Self

pub fn user(&self, user_id: &str) -> Self

pub fn guild(&self, guild_id: &str) -> Self

pub fn platform(&self, platform: &str) -> Self

pub fn private(&self) -> Self

pub fn group(&self) -> Self

pub fn command(&self, name: &str) -> CommandBuilder

开始定义一个新指令。

指令将自动关联当前上下文的过滤器。

例如

ctx.command("ping")
   .description("Replies with pong")
   .action(|session, _args| Box::pin(async move {
       session.bot.send_message(&session.channel_id, "pong").await?;
       Ok(())
   }))
   .register()?;

pub fn on<F>(&self, event_name: &str, callback: F) -> ListenerHandle

where F: FnMut(Option<&Session>, &[Box<dyn Any + Send + Sync>]) + Send + Sync + 'static,

pub fn once<F>(&self, event_name: &str, callback: F) -> ListenerHandle

where F: FnMut(Option<&Session>, &[Box<dyn Any + Send + Sync>]) + Send + Sync + 'static,

pub fn bail<F>(&self, event_name: &str, callback: F) -> ListenerHandle

where F: FnMut(Option<&Session>, &[Box<dyn Any + Send + Sync>]) -> Option<Box<dyn Any + Send + Sync>> + Send + Sync + 'static,

pub fn emit( &self, event_name: &str, session_context: Option<&Session>, args: &[Box<dyn Any + Send + Sync>], ) -> Option<Box<dyn Any + Send + Sync>>

发射事件

Arguments

session_context: 可选的会话上下文，用于过滤器匹配 event_name: 事件名称 args: 事件参数列表

Returns

如果某个 bail 监听器熔断了，则返回其返回值

Trait Implementations

impl Clone for Context

fn clone(&self) -> Context

Returns a duplicate of the value.

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

Performs copy-assignment from source.