Method execute

src/runtime/join.ts:563–573

(multiIndex: MultiIndex, result)

  }

  execute(multiIndex: MultiIndex, result) {
    if(this.constantReturn && this.strata.length === 1) {
      result = this.strata[0].execute(multiIndex, result, {single: true});
    } else {
      for(let stratum of this.strata) {
        result = stratum.execute(multiIndex, result);
        if(result.length === 0) break;
      }
    }
    return result;
  }
}

export class IfScan implements ProposalProvider {