Enum TerminalError 

pub enum TerminalError {
    InvalidGraph(String),
    NodeNotFound(String),
    MissingEdge {
        from: String,
        to: String,
    },
    NodeExecutionFailed {
        node: String,
        source: Box<dyn Error + Send + Sync>,
    },
    StepsExceeded {
        limit: usize,
    },
    LoopLimitExceeded {
        limit: usize,
    },
    BarrierTimeout {
        node: String,
        timeout: Duration,
    },
    BarrierCancelled {
        node: String,
    },
    Unrouted {
        node: String,
        attempted_conditions: Vec<ConditionEval>,
    },
    StateError(String),
}

终止错误 — Graph 执行不可恢复地停止。

Variants

InvalidGraph(String)

图结构无效（构建时校验遗漏的运行时问题）

NodeNotFound(String)

节点不存在

MissingEdge

Goto 目标缺少对应的边

Fields

from: String

to: String

NodeExecutionFailed

节点执行失败（不可恢复）

Fields

node: String

source: Box<dyn Error + Send + Sync>

StepsExceeded

全局步数超限（运行时熔断）

Fields

limit: usize

LoopLimitExceeded

循环超限

Fields

limit: usize

BarrierTimeout

Barrier 超时

Fields

node: String

timeout: Duration

BarrierCancelled

Barrier 被取消

Fields

node: String

Unrouted

无匹配边 — 没有任何 outgoing edge 满足条件，且无 fallback

Fields

node: String

当前节点

attempted_conditions: Vec<ConditionEval>

尝试的条件及其结果

StateError(String)

State 操作错误

Trait Implementations

impl Debug for TerminalError

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

Formats the value using the given formatter.

impl Display for TerminalError

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

Formats the value using the given formatter.

impl Error for TerminalError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.