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Graph

Struct Graph 

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pub struct Graph<S: WorkflowState = State, M: MergeStrategy<S> = StateMerge> { /* private fields */ }
Expand description

图(Graph)— 允许有环,循环保护由 GraphExecutor::max_steps 运行时熔断提供。

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impl<S: WorkflowState, M: MergeStrategy<S>> Graph<S, M>

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pub fn name(&self) -> &str

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pub fn node_names(&self) -> Vec<&str>

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pub fn start_node(&self) -> &str

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pub fn end_node(&self) -> &str

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pub fn canonical_hash(&self) -> u64

获取 canonical AST hash — 从 DSL 层计算,不依赖 HashMap 顺序。

用于 Checkpoint 的 graph compatibility 校验。 相同输入永远产生相同 hash,Checkpoint 不会因此失效。

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pub fn hash_u64(&self) -> u64

计算图结构指纹 hash(u64 原始值)— 基于 compiled graph 结构。

注意:此 hash 依赖 HashMap 迭代顺序,可能不稳定。 优先使用 canonical_hash() 进行 Checkpoint 校验。

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pub fn hash(&self) -> String

计算图结构指纹 hash(hex 字符串)。

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pub fn edges_from(&self, from: &str) -> Vec<&Edge<S>>

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pub fn find_edge(&self, from: &str, to: &str) -> Option<&Edge<S>>

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pub fn node_map(&self) -> &IndexMap<String, NodeKind<S, M>>

获取节点映射表引用。

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pub fn find_fallback_edge(&self, from: &str) -> Option<String>

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pub fn validate(&self) -> Result<(), TerminalError>

验证图结构。

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pub fn analyze(&self) -> GraphDiagnostics

完整图诊断分析。

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pub fn analyze_cycles(&self) -> CycleAnalysis

@deprecated 使用 analyze() 替代。

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pub async fn run_inline<'cb>( &self, exec_ctx: &mut ExecutionEngine<'_, S>, max_steps: usize, step_cb: &mut dyn StepCallback<'cb>, ) -> Result<(), GraphError>

内联执行 — 唯一的执行路径。

接收 ExecutionEngine(借用 State),内部循环构建 [NodeContext](能力视图) 供节点使用。

数据流:

ExecutionEngine
  → build_node_context()  → NodeContext<'_, S>
  → node.execute(ctx)     → 节点 record() Mutations
  → drop(ctx)             → 释放借用
  → commit()              → apply Mutations 到 State
  → emit_checkpoint()     → 通知 CheckpointSink
  → step_cb.on_step()     → 通知 wrapper(追踪/事件)
  → take_control()        → 获取路由信号
§StepCallback

每步回调在 commit + checkpoint 之后、take_control 之前调用。 用于 wrapper(如 run_execution_loop)追踪 execution_log 或发射 per-node 事件。

Trait Implementations§

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impl<S: Clone + WorkflowState, M: Clone + MergeStrategy<S>> Clone for Graph<S, M>

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fn clone(&self) -> Graph<S, M>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl<S = State, M = StateMerge> !RefUnwindSafe for Graph<S, M>

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impl<S = State, M = StateMerge> !UnwindSafe for Graph<S, M>

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impl<S, M> Freeze for Graph<S, M>

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impl<S, M> Send for Graph<S, M>

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impl<S, M> Sync for Graph<S, M>

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impl<S, M> Unpin for Graph<S, M>
where S: Unpin, M: Unpin,

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impl<S, M> UnsafeUnpin for Graph<S, M>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more