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performance and usability improvements

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This commit is contained in:
Joeri Exelmans 2025-10-23 19:16:46 +02:00
parent a25396b6f2
commit ab988898c0
18 changed files with 381 additions and 206 deletions
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14
src/statecharts/interpreter.ts
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@ -24,6 +24,16 @@ type ActionScope = {
type EnteredScope = { enteredStates: Mode } & ActionScope;
export class RuntimeError extends Error {
highlight: string[];
constructor(message: string, highlight: string[]) {
super(message);
this.highlight = highlight;
}
}
export class NonDeterminismError extends RuntimeError {}
export function execAction(action: Action, rt: ActionScope): ActionScope {
if (action.kind === "assignment") {
const rhs = evalExpr(action.rhs, rt.environment);
@ -116,7 +126,7 @@ export function enterDefault(simtime: number, state: ConcreteState, rt: ActionSc
// same as AND-state, but we only enter the initial state(s)
if (state.initial.length > 0) {
if (state.initial.length > 1) {
console.warn(state.uid + ': multiple initial states, only entering one of them');
throw new NonDeterminismError(`Non-determinism: state '${stateDescription(state)} has multiple (${state.initial.length}) initial states.`, [...state.initial.map(i => i[0]), state.uid]);
}
const [arrowUid, toEnter] = state.initial[0];
firedTransitions = [...firedTransitions, arrowUid];
@ -237,7 +247,7 @@ export function handleEvent(simtime: number, event: RT_Event, statechart: Statec
evalExpr(l.guard, guardEnvironment));
if (enabled.length > 0) {
if (enabled.length > 1) {
console.warn('nondeterminism!!!!');
throw new NonDeterminismError(`Non-determinism: state '${stateDescription(state)}' has multiple (${enabled.length}) enabled outgoing transitions: ${enabled.map(([t]) => transitionDescription(t)).join(', ')}`, [...enabled.map(([t]) => t.uid), state.uid]);
}
const [t,l] = enabled[0]; // just pick one transition
const arena = computeArena2(t, statechart.transitions);