01ba292b9f
This is a rather large commit that includes all of the following: - React UI with code editor, runtime renderer and input-output panes - Language providers for a sample language and Brainfuck - Implementation of code execution in a web worker - All-at-once unabortable execution of program fully functional
61 lines
1.6 KiB
TypeScript
61 lines
1.6 KiB
TypeScript
import { LanguageEngine, StepExecutionResult } from "./types";
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type ExecuteAllArgs<RS> = {
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/** Interval between two execution steps, in milliseconds */
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interval?: number;
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/**
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* Pass to run in streaming-response mode.
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* Callback is called with exeuction result on every execution step.
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*/
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onResult?: (result: StepExecutionResult<RS>) => void;
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};
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class ExecutionController<RS> {
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private _engine: LanguageEngine<RS>;
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private _result: StepExecutionResult<RS> | null;
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/**
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* Create a new ExecutionController.
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* @param engine Language engine to use for execution
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*/
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constructor(engine: LanguageEngine<RS>) {
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this._engine = engine;
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this._engine.resetState();
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this._result = null;
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}
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/**
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* Reset execution state in controller and engine.
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* Clears out state from the current execution cycle.
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*/
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resetState() {
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this._engine.resetState();
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this._result = null;
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}
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/**
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* Load code and user input into the engine to prepare for execution.
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* @param code Code content, lines separated by `\n`
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* @param input User input, lines separated by '\n'
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*/
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prepare(code: string, input: string) {
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this._engine.prepare(code, input);
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}
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async executeAll({ interval, onResult }: ExecuteAllArgs<RS>) {
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while (true) {
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this._result = this._engine.executeStep();
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onResult && onResult(this._result);
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if (!this._result.nextStepLocation) break;
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if (interval) await this.sleep(interval);
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}
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return this._result;
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}
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private async sleep(millis: number) {
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return new Promise<void>((resolve) => setTimeout(resolve, millis));
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}
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}
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export default ExecutionController;
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