More than one React component in a Reason file (module).

Multi.re

module WrapperA = {
  module A = {
    include ReactRe.Component;
    let name = "A";
    
    type props = ();
    
    let render _ => <div>(ReactRe.stringToElement "A")</div>;
  };
  
  include ReactRe.CreateComponent A;
  
  let createElement = wrapProps ();
};

module WrapperB = {
  module B = {
    include ReactRe.Component;
    let name = "B";
    
    type props = ();
    
    let render _ => <div>(ReactRe.stringToElement "B")</div>;
  };
  
  include ReactRe.CreateComponent B;
  
  let createElement = wrapProps ();
};

Single.re

module AB = {
  include ReactRe.Component;
  let name = "AB";
  
  type props = ();
  
  let render _ =>
    <div>
      <Multi.WrapperA />
      <Multi.WrapperB />
    </div>;
};

include ReactRe.CreateComponent AB;

let createElement = wrapProps ();