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import { Debugger, getIsa, IO, MachineStateUpdate } from 'novice';
import { BaseWorker } from '../base-worker';
import { DebuggerFrontendMessage, DebuggerWorkerMessage } from './proto';
import { SnitchDebugger } from './snitch-debugger';
class DebuggerWorker extends BaseWorker<DebuggerFrontendMessage,
DebuggerWorkerMessage> {
private dbg: Debugger|null;
private io: IO;
public constructor(ctx: Worker) {
super(ctx);
this.dbg = null;
// TODO: Add actual IO
this.io = {
getc: () => Promise.resolve(0),
putc: (c: number) => {
this.sendWorkerMessage({ kind: 'putc', c });
},
};
}
protected onFrontendMessage(msg: DebuggerFrontendMessage): void {
switch (msg.kind) {
case 'reset':
this.dbg = new SnitchDebugger(getIsa(msg.isa), this.io, -1,
this.onUpdates.bind(this));
break;
case 'load-sections':
if (!this.dbg) {
throw new Error('must reset before loading sections');
}
this.dbg.loadSections(msg.sections);
break;
case 'interrupt':
if (!this.dbg) {
throw new Error('must reset before interrupting');
}
this.dbg.onInterrupt();
break;
case 'step':
if (!this.dbg) {
throw new Error('must reset before stepping');
}
this.dbg.step();
break;
case 'unstep':
if (!this.dbg) {
throw new Error('must reset before unstepping');
}
this.dbg.unstep();
break;
case 'run':
if (!this.dbg) {
throw new Error('must reset before running');
}
this.dbg.run();
break;
default:
const _: never = msg;
}
}
private onUpdates(updates: MachineStateUpdate[]): void {
this.sendWorkerMessage({kind: 'updates', updates});
}
}
export { DebuggerWorker };
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