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import matches from "../matches.ts";import { IParser, OnParse, ParserInto } from "./interfaces.ts";import { Parser } from "./parser.ts";import { any } from "./simple-parsers.ts";
/** * This is needed when the typescript has a recursive, mutual types * type Things = string | [OtherThings] * type OtherThings = {type: 'other', value:Things } */export class DeferredParser<B> implements IParser<unknown, B> {  private parser?: Parser<unknown, B>;  static create<B>(): DeferredParser<B> {    return new DeferredParser<B>();  }  private constructor(    readonly description = {      name: "Deferred",      children: [],      extras: [],    } as const,  ) {}  setParser(parser: IParser<unknown, B>) {    this.parser = new Parser(parser);    return this;  }  parse<C, D>(a: unknown, onParse: OnParse<unknown, B, C, D>): C | D {    if (!this.parser) {      return onParse.invalid({        value: "Not Set Up",        keys: [],        parser: this,      });    }    return this.parser.parse(a, onParse);  }}
/** * Must pass the shape that we expect since typescript as of this point * can't infer with recursive like structures like this. * @returns [Parser, setParser] Use the setParser to set the parser later */export function deferred<B = never>() {  const deferred = DeferredParser.create<B>();  function setParser(parser: IParser<unknown, B>) {    deferred.setParser(parser);  }  return [new Parser(deferred), setParser] as const;}