86 lines
3 KiB
TypeScript
86 lines
3 KiB
TypeScript
import { Dispatch, memo, Ref, SetStateAction, useCallback } from "react";
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import { Statechart, stateDescription } from "../statecharts/abstract_syntax";
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import { BigStep, Mode, RaisedEvent, RT_Event } from "../statecharts/runtime_types";
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import { formatTime } from "../util/util";
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import { TimeMode } from "../statecharts/time";
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import { TraceItem, TraceState } from "./App";
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import { Environment } from "@/statecharts/environment";
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type RTHistoryProps = {
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trace: TraceState|null,
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setTrace: Dispatch<SetStateAction<TraceState|null>>;
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ast: Statechart,
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setTime: Dispatch<SetStateAction<TimeMode>>,
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}
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export function RTHistory({trace, setTrace, ast, setTime}: RTHistoryProps) {
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const onMouseDown = useCallback((idx: number, timestamp: number) => {
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setTrace(trace => trace && {
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...trace,
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idx,
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});
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setTime({kind: "paused", simtime: timestamp});
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}, [setTrace, setTime]);
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if (trace === null) {
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return <></>;
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}
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return <div>
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{trace.trace.map((item, i) => <RTHistoryItem ast={ast} idx={i} item={item} prevItem={trace.trace[i-1]} active={i === trace.idx} onMouseDown={onMouseDown}/>)}
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</div>;
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}
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export const RTHistoryItem = memo(function RTHistoryItem({ast, idx, item, prevItem, active, onMouseDown}: {idx: number, ast: Statechart, item: TraceItem, prevItem?: TraceItem, active: boolean, onMouseDown: (idx: number, timestamp: number) => void}) {
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if (item.kind === "bigstep") {
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// @ts-ignore
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const newStates = item.mode.difference(prevItem?.mode || new Set());
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return <div
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className={"runtimeState" + (active ? " active" : "")}
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onMouseDown={useCallback(() => onMouseDown(idx, item.simtime), [idx, item.simtime])}>
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<div>
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{formatTime(item.simtime)}
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<div className="inputEvent">{item.inputEvent || "<init>"}</div>
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</div>
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<ShowMode mode={newStates} statechart={ast}/>
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<ShowEnvironment environment={item.environment}/>
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{item.outputEvents.length>0 && <>^
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{item.outputEvents.map((e:RaisedEvent) => <span className="outputEvent">{e.name}</span>)}
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</>}
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</div>;
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}
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else {
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return <div className="runtimeState runtimeError">
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<div>
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{formatTime(item.simtime)}
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<div className="inputEvent">{item.inputEvent}</div>
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</div>
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<div>
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{item.error.message}
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</div>
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</div>;
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}
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});
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function ShowEnvironment(props: {environment: Environment}) {
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return <div>{
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[...props.environment.entries()]
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.filter(([variable]) => !variable.startsWith('_'))
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.map(([variable,value]) => `${variable}: ${value}`).join(', ')
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}</div>;
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}
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function ShowMode(props: {mode: Mode, statechart: Statechart}) {
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const activeLeafs = getActiveLeafs(props.mode, props.statechart);
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return <div>{[...activeLeafs].map(uid =>
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<span className="activeState">{stateDescription(props.statechart.uid2State.get(uid)!)}</span>)}</div>;
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}
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function getActiveLeafs(mode: Mode, sc: Statechart) {
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return new Set([...mode].filter(uid =>
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// @ts-ignore
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sc.uid2State.get(uid)?.children?.length === 0
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));
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}
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