47 lines
2.1 KiB
TypeScript
47 lines
2.1 KiB
TypeScript
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declare type StateTransitions<Context> = WeakMap<State<Context>, WeakSet<State<Context>>>;
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export declare const _states: unique symbol;
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export declare const _stateTransitions: unique symbol;
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export declare const _prevState: unique symbol;
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export declare const _currState: unique symbol;
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export declare class StateMachineBuilder<Context> {
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[_states]: Map<string, Actions<Context>>;
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[_stateTransitions]: Array<[string, Array<string>]> | undefined;
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constructor();
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withTransitions(transitions: Array<[string, Array<string>]>): this;
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withStates(names: string[], actions?: Actions<Context>): this;
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withState(name: string, actions?: Actions<Context>): this;
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private addStateUnchecked;
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build(currentStateName: string): StateMachine<unknown>;
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private buildStates;
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private buildTransitions;
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}
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export declare class StateMachine<Context> {
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[_states]: State<Context>[];
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[_stateTransitions]: StateTransitions<Context>;
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[_prevState]: State<Context> | undefined;
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[_currState]: State<Context>;
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constructor(states: State<Context>[], transitions: StateTransitions<Context>, currentState: State<Context>);
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changeState(sourceState: string | State<Context>, context?: Context): Promise<void>;
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hasTransition(to: string | State<Context>): boolean;
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allowedTransitionStates(): State<Context>[];
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}
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declare const _stateName: unique symbol;
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declare const _stateActions: unique symbol;
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interface Actions<Context> {
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beforeExit?(fromState: State<Context>, toState: State<Context>, context: Context): boolean;
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onEntry?(fromState: State<Context>, toState: State<Context>, context: Context): Promise<void> | void;
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}
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export declare class State<Context> {
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[_stateActions]: Actions<Context>;
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[_stateName]: string;
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get name(): string;
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constructor(name: string, actions?: Actions<Context>);
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entry(fromState: State<Context>, toState: State<Context>, context: Context): Promise<void>;
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exit(fromState: State<Context>, toState: State<Context>, context: Context): boolean;
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toString(): string;
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toJSON(): string;
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}
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export declare class FsmError extends Error {
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}
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export {};
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