jssm
Version:
A Javascript finite state machine (FSM) with a terse DSL and a simple API. Most FSMs are one-liners. Fast, easy, powerful, well tested, typed with TypeScript, and visualizations. MIT License.
215 lines (214 loc) • 8.41 kB
TypeScript
declare type StateType = string;
declare type JssmSuccess = {
success: true;
};
declare type JssmFailure = {
success: false;
error: any;
};
declare type JssmIncomplete = {
success: 'incomplete';
};
declare type JssmResult = JssmSuccess | JssmFailure | JssmIncomplete;
declare type JssmColor = string;
declare type JssmPermitted = 'required' | 'disallowed';
declare type JssmPermittedOpt = 'required' | 'disallowed' | 'optional';
declare type JssmArrow = '->' | '<-' | '<->' | '<=->' | '<~->' | '=>' | '<=' | '<=>' | '<-=>' | '<~=>' | '~>' | '<~' | '<~>' | '<-~>' | '<=~>';
declare type JssmShape = "box" | "polygon" | "ellipse" | "oval" | "circle" | "point" | "egg" | "triangle" | "plaintext" | "plain" | "diamond" | "trapezium" | "parallelogram" | "house" | "pentagon" | "hexagon" | "septagon" | "octagon" | "doublecircle" | "doubleoctagon" | "tripleoctagon" | "invtriangle" | "invtrapezium" | "invhouse" | "Mdiamond" | "Msquare" | "Mcircle" | "rect" | "rectangle" | "square" | "star" | "none" | "underline" | "cylinder" | "note" | "tab" | "folder" | "box3d" | "component" | "promoter" | "cds" | "terminator" | "utr" | "primersite" | "restrictionsite" | "fivepoverhang" | "threepoverhang" | "noverhang" | "assembly" | "signature" | "insulator" | "ribosite" | "rnastab" | "proteasesite" | "proteinstab" | "rpromoter" | "rarrow" | "larrow" | "lpromoter" | "record";
declare type JssmArrowDirection = 'left' | 'right' | 'both';
declare type JssmArrowKind = 'none' | 'legal' | 'main' | 'forced';
declare type JssmLayout = 'dot' | 'circo' | 'twopi' | 'fdp';
declare type JssmCorner = 'regular' | 'rounded' | 'lined';
declare type JssmLineStyle = 'solid' | 'dashed' | 'dotted';
declare type FslDirection = 'up' | 'right' | 'down' | 'left';
declare type FslTheme = 'default' | 'ocean' | 'modern' | 'none';
declare type JssmTransitionPermitter<DataType> = (OldState: StateType, NewState: StateType, OldData: DataType, NewData: DataType) => boolean;
declare type JssmTransitionPermitterMaybeArray<DataType> = JssmTransitionPermitter<DataType> | Array<JssmTransitionPermitter<DataType>>;
declare type JssmTransition<DataType> = {
from: StateType;
to: StateType;
name?: string;
action?: StateType;
check?: JssmTransitionPermitterMaybeArray<DataType>;
probability?: number;
kind: JssmArrowKind;
forced_only: boolean;
main_path: boolean;
};
declare type JssmTransitions<DataType> = Array<JssmTransition<DataType>>;
declare type JssmTransitionList = {
entrances: Array<StateType>;
exits: Array<StateType>;
};
declare type JssmTransitionCycle = {
key: 'cycle';
value: StateType;
};
declare type JssmTransitionRule = StateType | JssmTransitionCycle;
declare type JssmGenericState = {
from: Array<StateType>;
name: StateType;
to: Array<StateType>;
complete: boolean;
};
declare type JssmMachineInternalState<DataType> = {
internal_state_impl_version: 1;
state: StateType;
states: Map<StateType, JssmGenericState>;
named_transitions: Map<StateType, number>;
edge_map: Map<StateType, Map<StateType, number>>;
actions: Map<StateType, Map<StateType, number>>;
reverse_actions: Map<StateType, Map<StateType, number>>;
edges: Array<JssmTransition<DataType>>;
};
declare type JssmStatePermitter<DataType> = (OldState: StateType, NewState: StateType, OldData: DataType, NewData: DataType) => boolean;
declare type JssmStatePermitterMaybeArray<DataType> = JssmStatePermitter<DataType> | Array<JssmStatePermitter<DataType>>;
declare type JssmGenericMachine<DataType> = {
name?: string;
state: StateType;
data?: DataType;
nodes?: Array<StateType>;
transitions: JssmTransitions<DataType>;
check?: JssmStatePermitterMaybeArray<DataType>;
min_transitions?: number;
max_transitions?: number;
allow_empty?: boolean;
allow_islands?: boolean;
allow_force?: boolean;
keep_history?: boolean | number;
};
declare type JssmStateDeclarationRule = {
key: string;
value: any;
};
declare type JssmStateDeclaration = {
declarations: Array<JssmStateDeclarationRule>;
shape?: JssmShape;
color?: JssmColor;
corners?: JssmCorner;
linestyle?: JssmLineStyle;
textColor?: JssmColor;
backgroundColor?: JssmColor;
borderColor?: JssmColor;
state: StateType;
};
declare type JssmGenericConfig<DataType> = {
graph_layout?: JssmLayout;
complete?: Array<StateType>;
transitions: JssmTransitions<DataType>;
theme?: FslTheme;
flow?: FslDirection;
name?: string;
data?: DataType;
nodes?: Array<StateType>;
check?: JssmStatePermitterMaybeArray<DataType>;
min_exits?: number;
max_exits?: number;
allow_islands?: false;
allow_force?: false;
actions?: JssmPermittedOpt;
simplify_bidi?: boolean;
dot_preamble?: string;
start_states: Array<StateType>;
end_states?: Array<StateType>;
state_declaration?: Array<Object>;
arrange_declaration?: Array<Array<StateType>>;
arrange_start_declaration?: Array<Array<StateType>>;
arrange_end_declaration?: Array<Array<StateType>>;
machine_author?: string | Array<string>;
machine_comment?: string;
machine_contributor?: string | Array<string>;
machine_definition?: string;
machine_language?: string;
machine_license?: string;
machine_name?: string;
machine_version?: string;
fsl_version?: string;
auto_api?: boolean | string;
instance_name?: string | undefined;
};
declare type JssmCompileRule = {
agg_as: string;
val: any;
};
declare type JssmCompileSe = {
to: StateType;
se: JssmCompileSe;
kind: JssmArrow;
l_action?: StateType;
r_action?: StateType;
l_probability: number;
r_probability: number;
};
declare type JssmCompileSeStart<DataType> = {
from: DataType;
se: JssmCompileSe;
key: string;
value?: string | number;
name?: string;
};
declare type JssmParseTree = Array<JssmCompileSeStart<StateType>>;
declare type JssmParseFunctionType = (string: any) => JssmParseTree;
declare type BasicHookDescription<mDT> = {
kind: 'hook';
from: string;
to: string;
handler: HookHandler<mDT>;
};
declare type HookDescriptionWithAction<mDT> = {
kind: 'named';
from: string;
to: string;
action: string;
handler: HookHandler<mDT>;
};
declare type StandardTransitionHook<mDT> = {
kind: 'standard transition';
handler: HookHandler<mDT>;
};
declare type MainTransitionHook<mDT> = {
kind: 'main transition';
handler: HookHandler<mDT>;
};
declare type ForcedTransitionHook<mDT> = {
kind: 'forced transition';
handler: HookHandler<mDT>;
};
declare type AnyTransitionHook<mDT> = {
kind: 'any transition';
handler: HookHandler<mDT>;
};
declare type GlobalActionHook<mDT> = {
kind: 'global action';
action: string;
handler: HookHandler<mDT>;
};
declare type AnyActionHook<mDT> = {
kind: 'any action';
handler: HookHandler<mDT>;
};
declare type EntryHook<mDT> = {
kind: 'entry';
to: string;
handler: HookHandler<mDT>;
};
declare type ExitHook<mDT> = {
kind: 'exit';
from: string;
handler: HookHandler<mDT>;
};
declare type HookDescription<mDT> = BasicHookDescription<mDT> | HookDescriptionWithAction<mDT> | GlobalActionHook<mDT> | AnyActionHook<mDT> | StandardTransitionHook<mDT> | MainTransitionHook<mDT> | ForcedTransitionHook<mDT> | AnyTransitionHook<mDT> | EntryHook<mDT> | ExitHook<mDT>;
declare type HookComplexResult<mDT> = {
pass: boolean;
state?: StateType;
data?: mDT;
};
declare type HookResult<mDT> = true | false | undefined | void | HookComplexResult<mDT>;
declare type HookContext<mDT> = {
data: mDT;
};
declare type HookHandler<mDT> = (hook_context: HookContext<mDT>) => HookResult<mDT>;
declare type JssmErrorExtendedInfo = {
requested_state?: StateType | undefined;
};
export { JssmColor, JssmTransition, JssmTransitions, JssmTransitionList, JssmTransitionRule, JssmArrow, JssmArrowKind, JssmArrowDirection, JssmGenericConfig, JssmGenericState, JssmGenericMachine, JssmParseTree, JssmCompileSe, JssmCompileSeStart, JssmCompileRule, JssmPermitted, JssmPermittedOpt, JssmResult, JssmStateDeclaration, JssmStateDeclarationRule, JssmLayout, JssmParseFunctionType, JssmMachineInternalState, JssmErrorExtendedInfo, FslDirection, FslTheme, HookDescription, HookHandler, HookContext, HookResult, HookComplexResult };